TECX on Nasdaq
Tectonic Therapeutic, Inc.
American biological products company based in Watertown1
In its 2026 annual report the company says: “We are a clinical-stage biotechnology company focused on the discovery and development of therapeutic proteins and antibodies that modulate the activity of G-protein coupled receptors. We have developed a proprietary technology platform called GEODe™ (GPCRs Engineered for Optimal Discovery) with the aim of addressing these challenges and enabling the discovery and development of GPCR-targeted biologic medicines that can modify the course of disease.”4 Its shares trade on Nasdaq under the symbol TECX.1
Price unavailable
Last updated Oct 21, 2026.
Overview
- TickerTECX on Nasdaq1
- IndustryBiological Products, (No Diagnostic Substances)1
- HeadquartersWatertown, Massachusetts1
- Incorporated inNY2
- Business address490 Arsenal Way, Suite 200, Watertown, Ma2
- Filer categoryNon-accelerated filer, Smaller reporting company2
- Legal formCorporation
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The business and the industry in which Tectonic Therapeutic, Inc. (inclusive of its consolidated subsidiaries, “Tectonic,” the “Company,” “we,” “us,” or “our”) operates is subject to a high degree of uncertainty and risk due to a variety of factors, including those described in the section titled “Risk Factors” and elsewhere in this Annual Report on Form 10-K. These and other factors could cause results to differ materially from those expressed in the estimates made by the independent parties and by Tectonic.4 From its latest annual report
Financials
From the company’s reports to the SEC. Every number links to the filing it came from.
Financial statements
Every line of the income statement as filed: the last 2 fiscal years, latest first.10
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Research and development | $63.5M | $41.4M |
| General and administrative | $20.5M | $16.7M |
| Total operating expenses | $84.0M | $58.0M |
| Loss from operations | -$84.0M | -$58.0M |
| Interest income | $11.3M | $4.3M |
| Interest expense | -$63.0K | -$107.0K |
| Change in fair value of SAFE liabilities | $0 | -$3.6M |
| Other expense | -$119.0K | -$511.0K |
| Total other income, net | $11.1M | $33.0K |
| Loss before income tax | -$72.9M | -$58.0M |
| Income tax expense | -$1.2M | $0 |
| Net loss | -$74.2M | -$58.0M |
| Foreign currency translation adjustment | -$105.0K | $9.0K |
| Comprehensive loss | -$74.3M | -$58.0M |
| Net loss per share, basic | -$4.05 | -$6.83 |
| Net loss per share, diluted | -$4.05 | -$6.83 |
| Weighted-average common shares outstanding, basic | 18.3M shares | 8.5M shares |
| Weighted-average common shares outstanding, diluted | 18.3M shares | 8.5M shares |
No quarter-by-quarter statement was filed.
Every line of the balance sheet as filed: the last 3 fiscal years (annual) or 3 quarters (quarterly), latest first.10
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $253.8M | $141.2M | |
| Prepaid expenses and other current assets | $3.0M | $5.6M | |
| Restricted cash | $587.0K | $0 | |
| Total current assets | $257.4M | $146.9M | |
| Property and equipment, net | $1.2M | $2.2M | |
| Finance right-of-use assets, net | $495.0K | $919.0K | |
| Operating right-of-use assets | $874.0K | $2.2M | |
| Restricted cash | $485.0K | $587.0K | |
| Other assets | $640.0K | $156.0K | |
| Total assets | $261.0M | $152.9M | |
| Accounts payable | $1.1M | $976.0K | |
| Accrued expenses and other current liabilities | $7.3M | $7.8M | |
| Operating lease liability | $889.0K | $2.3M | |
| Finance lease liability | $344.0K | $489.0K | |
| Total current liabilities | $9.7M | $11.6M | |
| Operating lease liability, non-current | $0 | $132.0K | |
| Finance lease liability, non-current | $43.0K | $387.0K | |
| Total liabilities | $9.7M | $12.1M | |
| Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of December 31, 2025 and December 31, 2024; no shares issued and outstanding as of December 31, 2025 and December 31, 2024 | $0 | $0 | |
| Common stock, $0.0001 par value; 150,000,000 shares authorized as of December 31, 2025 and December 31, 2024; 18,713,223 and 14,856,309 shares issued and outstanding as of December 31, 2025 and December 31, 2024, respectively | $2.0K | $2.0K | |
| Additional paid-in capital | $474.2M | $289.4M | |
| Accumulated other comprehensive (loss) income | -$96.0K | $9.0K | |
| Accumulated deficit | -$222.7M | -$148.6M | |
| Total stockholders' equity | $251.3M | $140.8M | -$84.6M |
| Total liabilities and stockholders' equity | $261.0M | $152.9M | |
| Preferred Stock, Shares Authorized | 10.0M shares | 10.0M shares | |
| Preferred Stock, Par Value | $0.00 | $0.00 | |
| Preferred Stock, Shares Issued | 0 shares | 0 shares | |
| Preferred Stock, Shares Outstanding | 0 shares | 0 shares | |
| Common stock, par value | $0.00 | $0.00 | |
| Common stock, authorized | 150.0M shares | 150.0M shares | |
| Common stock, issued | 18.7M shares | 14.9M shares | |
| Common stock, outstanding | 18.7M shares | 14.9M shares |
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $253.8M | $141.2M | |
| Prepaid expenses and other current assets | $3.0M | $5.6M | |
| Restricted cash | $587.0K | $0 | |
| Total current assets | $257.4M | $146.9M | |
| Property and equipment, net | $1.2M | $2.2M | |
| Finance right-of-use assets, net | $495.0K | $919.0K | |
| Operating right-of-use assets | $874.0K | $2.2M | |
| Restricted cash | $485.0K | $587.0K | |
| Other assets | $640.0K | $156.0K | |
| Total assets | $261.0M | $152.9M | |
| Accounts payable | $1.1M | $976.0K | |
| Accrued expenses and other current liabilities | $7.3M | $7.8M | |
| Operating lease liability | $889.0K | $2.3M | |
| Finance lease liability | $344.0K | $489.0K | |
| Total current liabilities | $9.7M | $11.6M | |
| Operating lease liability, non-current | $0 | $132.0K | |
| Finance lease liability, non-current | $43.0K | $387.0K | |
| Total liabilities | $9.7M | $12.1M | |
| Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of December 31, 2025 and December 31, 2024; no shares issued and outstanding as of December 31, 2025 and December 31, 2024 | $0 | $0 | |
| Common stock, $0.0001 par value; 150,000,000 shares authorized as of December 31, 2025 and December 31, 2024; 18,713,223 and 14,856,309 shares issued and outstanding as of December 31, 2025 and December 31, 2024, respectively | $2.0K | $2.0K | |
| Additional paid-in capital | $474.2M | $289.4M | |
| Accumulated other comprehensive (loss) income | -$96.0K | $9.0K | |
| Accumulated deficit | -$222.7M | -$148.6M | |
| Total stockholders' equity | $251.3M | $140.8M | -$84.6M |
| Total liabilities and stockholders' equity | $261.0M | $152.9M | |
| Preferred Stock, Shares Authorized | 10.0M shares | 10.0M shares | |
| Preferred Stock, Par Value | $0.00 | $0.00 | |
| Preferred Stock, Shares Issued | 0 shares | 0 shares | |
| Preferred Stock, Shares Outstanding | 0 shares | 0 shares | |
| Common stock, par value | $0.00 | $0.00 | |
| Common stock, authorized | 150.0M shares | 150.0M shares | |
| Common stock, issued | 18.7M shares | 14.9M shares | |
| Common stock, outstanding | 18.7M shares | 14.9M shares |
Cash flow is reported year to date, not quarter by quarter, so there are no separate quarterly figures.
Every line of the cash flow as filed: the last 2 fiscal years, latest first.10
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Net loss | -$74.2M | -$58.0M |
| Depreciation and amortization expense | $1.4M | $1.6M |
| Stock-based compensation expense | $10.5M | $3.5M |
| Loss on sale of property and equipment | $153.0K | $0 |
| Reduction in the carrying amount of the operating right-of-use assets | $2.1M | $434.0K |
| Change in fair value of SAFE liabilities | $0 | $3.6M |
| Prepaid expenses and other current assets | $2.6M | -$3.2M |
| Other non-current assets | $17.0K | $544.0K |
| Accounts payable | $116.0K | -$1.4M |
| Accrued expenses and other current liabilities | -$552.0K | -$5.6M |
| Operating lease liabilities | -$2.3M | -$565.0K |
| Net cash used in operating activities | -$60.1M | -$59.1M |
| Purchase of property and equipment | -$208.0K | -$156.0K |
| Proceeds from the sale of property and equipment | $70.0K | $0 |
| Net cash used in investing activities | -$138.0K | -$156.0K |
| Proceeds from the private placement, net of offering costs of $11,928 | $173.1M | $0 |
| Proceeds from the Subscription Agreement, net of offering costs of $2,000 | $0 | $94.6M |
| Cash acquired in connection with the Merger, net of transaction costs of $7,412 | $0 | $76.0M |
| Proceeds from exercise of stock options | $1.2M | $1.6M |
| Payments for employee taxes related to net share settlement of equity awards | -$17.0K | $0 |
| Payment of deferred offering costs | -$468.0K | $0 |
| Repayment of finance lease obligations | -$489.0K | -$475.0K |
| Net cash provided by financing activities | $173.4M | $171.7M |
| Effect of exchange rate changes on cash and cash equivalents | -$95.0K | -$8.0K |
| Net increase in cash and cash equivalents and restricted cash | $113.0M | $112.5M |
| Deferred offering costs included in accrued expenses and other liabilities | $35.0K | $0 |
| Right-of-use assets obtained in exchange for new operating lease liabilities | $757.0K | $0 |
| Conversion of SAFEs to Common Stock | $0 | $34.1M |
| Conversion of Convertible Preferred Stock to Common Stock | $0 | $80.6M |
| Transaction Costs | $9.3M |
No quarter-by-quarter statement was filed.
Corporate structure
Tectonic Therapeutic, Inc. sits at the top of its group. 5 entities, 3 countries on record. Switch between the flow chart and the network, and select any entity to see its details.
Major holders of Tectonic Therapeutic, Inc.
- TCG Crossover GP II, LLC Filed SCHEDULE 13G on Tectonic Therapeutic, Inc., latest Feb 27, 2026
- Aberdeen Group plc Filed SCHEDULE 13G on Tectonic Therapeutic, Inc., latest Jan 29, 2026
- Deep Track Capital, LP Filed SCHEDULE 13G/A on Tectonic Therapeutic, Inc., latest Nov 14, 2025 (3 filings since Feb 14, 2022)
- EcoR1 Capital, LLC Filed SCHEDULE 13G/A on Tectonic Therapeutic, Inc., latest Nov 14, 2025 (3 filings since Jul 1, 2024)
- FMR LLC Filed SCHEDULE 13G/A on Tectonic Therapeutic, Inc., latest May 12, 2025 (4 filings since Jul 10, 2024)
- Terrance McGuire Filed SCHEDULE 13D/A on Tectonic Therapeutic, Inc., latest Apr 7, 2025 (3 filings since Jun 25, 2024)
- Timothy A. Springer Filed SCHEDULE 13D/A on Tectonic Therapeutic, Inc., latest Apr 7, 2025 (5 filings since Jun 26, 2024)
- Vida Ventures II, LLC Filed SCHEDULE 13D/A on Tectonic Therapeutic, Inc., latest Apr 7, 2025 (3 filings since Jun 27, 2024)
- BML Investment Partners, L.P. Filed SCHEDULE 13G/A on Tectonic Therapeutic, Inc., latest Feb 13, 2025 (4 filings since Jul 24, 2023)
- Newtyn Management, LLC Filed SC 13G/A on Tectonic Therapeutic, Inc., latest Nov 14, 2024 (2 filings since Feb 14, 2024)
- Atlas Venture Fund X, L.P. Filed SC 13D/A on Tectonic Therapeutic, Inc., latest Oct 28, 2024
- ADAR1 Partners, LP Filed SCHEDULE 13G on Tectonic Therapeutic, Inc., latest Feb 23, 2024
- Tectonic Therapeutic, Inc. Watertown, Massachusetts
- AVROBIO Australia Pty Ltd Subsidiary · Australia
- AVROBIO Inc. Subsidiary · Ontario, Canada
- Tectonic Operating Company, Inc. Subsidiary · Delaware, United States
- Tectonic Therapeutic Securities Corp. Subsidiary · Massachusetts, United States
Built from subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
What it owns
What Tectonic Therapeutic, Inc. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.
Property and equipment
| Item | Latest | A year before | Change |
|---|---|---|---|
| Property and equipment, before depreciation | $4.6M10 Dec 31, 2025 | $4.9M10 Dec 31, 2024 | −6.2% |
| Accumulated depreciation | $3.4M10 Dec 31, 2025 | $2.7M10 Dec 31, 2024 | +24.1% |
| Property and equipment, net | $1.2M10 Dec 31, 2025 | $2.2M10 Dec 31, 2024 | −44.9% |
| Finance-lease assets | $495.0K10 Dec 31, 2025 | $919.0K10 Dec 31, 2024 | −46.1% |
| Operating-lease assets (leased space) | $874.0K10 Dec 31, 2025 | $2.2M10 Dec 31, 2024 | −60.9% |
Investments
| Item | Latest | A year before | Change |
|---|---|---|---|
| Cash and cash equivalents | $253.8M10 Dec 31, 2025 | $141.2M10 Dec 31, 2024 | +79.7% |
Properties, in its own words
Our corporate headquarters are currently located in Watertown, Massachusetts, where we lease approximately 33,000 square feet of research laboratory and office space under a lease that expires in 2029. We believe our current facilities are adequate to meet our present operational needs.
Item 2 of the 10-K filed Feb 26, 2026.4
Leadership
Who has led Tectonic Therapeutic, Inc., and when. Pick a name to see everywhere that person has worked.
Chief financial officer
Chief operating officer
- Chief executive officerAlise Reicin Jun 24, 2024 to now13
- Chief executive officerErik Ostrowski Jul 3, 2023 to Feb 5, 202414
- Chief executive officerGeoffrey Mackay Mar 6, 2020 to Feb 10, 202315
- PresidentErik Ostrowski Jul 3, 2023 to Feb 5, 202414
- PresidentGeoffrey Mackay Mar 6, 2020 to Feb 10, 202315
- PresidentBirgitte Volck Dec 19, 2018 to Mar 6, 202016
- Chief financial officerDaniel Lochner Jun 24, 2024 to now17
- Chief financial officerErik Ostrowski Jan 4, 2019 to Feb 5, 202418
- Chief financial officerKatina Dorton Jun 20, 2018 to Oct 10, 201819
- Chief operating officerChristian Cortis Jun 24, 2024 to Jun 24, 202420
Board members and other officers (27)
- Chief Business OfficerMarc Schwabish Jun 24, 2024 to now21
- Chief Medical OfficerMarcella K. Ruddy Jun 24, 2024 to now22
- Chief Scientific OfficerPeter McNamara Jun 24, 2024 to now23
- Chief Technology OfficerAzadeh Golipour Jun 17, 2022 to Feb 5, 202424
- Chief Medical OfficerDiana Escolar Jan 22, 2021 to Jun 14, 202125
- Chief Medical OfficerEssra Ridha Oct 27, 2021 to Feb 5, 202426
- Chief Business OfficerDeanna M. Petersen Mar 6, 2020 to Feb 10, 202327
- OfficerGeoffrey Mackay Jun 20, 2018 to Feb 14, 202028
- Chief Medical OfficerNerissa Kreher Jun 20, 2018 to Oct 10, 201829
- Board memberFrancois Nader Apr 3, 2026 to now30
- Board memberJessica Caroline Chutter Jun 10, 2026 to now31
- Board memberAlise Reicin Jun 24, 2024 to now13
- Board memberPraveen P. Tipirneni Jun 24, 2024 to now32
- Board memberStefan Vitorovic Jun 24, 2024 to now33
- Board memberTerrance McGuire Jun 24, 2024 to now34
- Board memberTimothy A. Springer Jun 24, 2024 to now35
- Board memberGail M. Farfel Oct 21, 2020 to Jun 8, 202336
- Board memberPhilip J. Vickers Jan 9, 2019 to Jun 8, 202337
- Board memberAnnalisa Jenkins Jun 20, 2018 to Jun 8, 202338
- Board memberBruce Booth Jun 20, 2018 to Jun 8, 202339
- Board memberChristopher Paige Jun 20, 2018 to Jun 8, 202340
- Board memberGeoffrey Mackay Jun 20, 2018 to Feb 10, 202328
- Board memberIan T. Clark Jun 20, 2018 to Jun 8, 202341
- Board memberJoshua Resnick Jun 20, 2018 to Jun 20, 201842
- Board memberPhilip B. Donenberg Jun 20, 2018 to now43
- Board memberScott Requadt Jun 20, 2018 to Jun 25, 201844
- General counselSteven Avruch Jan 4, 2019 to Feb 5, 202445
Subsidiaries and ownership
Subsidiaries (Exhibit 21)
- AVROBIO Australia Pty Ltd Australia3
- AVROBIO Inc. Ontario, Canada3
- Tectonic Operating Company, Inc. Delaware3
- Tectonic Therapeutic Securities Corp. Massachusetts3
The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.
Former names
- AvroBio, Inc.Feb 2, 2018 to Jun 18, 20242
Timeline
- Sep 29, 20268-K Other events46
- Aug 6, 20268-K Results of operations47
- Jun 10, 20268-K Shareholder vote; Other events48
- May 7, 20268-K Results of operations49
- Apr 23, 20268-K Executive or director change; Regulation FD disclosure50
- Feb 26, 20268-K Results of operations51
- Feb 24, 20268-K Executive or director change; Regulation FD disclosure52
- Nov 6, 20258-K Results of operations53
- Oct 30, 20258-K Other events54
- Aug 7, 20258-K Results of operations; Regulation FD disclosure55
- Jun 6, 20258-K Shareholder vote56
- May 19, 20258-K Other events57
- Jun 24, 2024New chief executive Alise Reicin becomes CEO13
- Jul 3, 2023New chief executive Erik Ostrowski becomes CEO14
- Mar 6, 2020New chief executive Geoffrey Mackay becomes CEO15
Calendar
Coming up
- Nov 5, 2026Reports results for the quarter ending Sep/2026 A year earlier it reported ($1.02) a share, on Nov 6, 2025.58
When it reported results
- Aug 6, 2026Reported quarterly or annual results47
- May 7, 2026Reported quarterly or annual results49
- Feb 26, 2026Reported quarterly or annual results51
- Nov 6, 2025Reported quarterly or annual results53
- Aug 7, 2025Reported quarterly or annual results55
- May 8, 2025Reported quarterly or annual results59
- Mar 20, 2025Reported quarterly or annual results60
- Nov 7, 2024Reported quarterly or annual results61
Drug trials and FDA: coming up
- Nov 24, 2026Phase 2 trial readout expected Phase 2 trial of TX000045- Dose A and TX000045- Dose B in Pulmonary Hypertension: primary completion expected Nov 24, 2026 (ClinicalTrials.gov NCT06616974).62
Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). Trials from ClinicalTrials.gov, as the sponsor registered them (expected dates are the sponsor's own and often move); approvals and advisory committee meetings from the FDA. The FDA does not publish its decision (PDUFA) dates. The full markets calendar
Filings
352 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 57 major events, 137 insider forms, 47 large holders, 1 private raises, 90 other. The latest 20:
- Oct 2, 20264 EDGAR
- Oct 2, 20264 EDGAR
- Oct 2, 20264 EDGAR
- Oct 2, 20264 EDGAR
- Oct 2, 20264 EDGAR
- Sep 30, 2026144 EDGAR
- Sep 29, 20268-K EDGAR
- Sep 8, 20264 EDGAR
- Sep 8, 20264 EDGAR
- Sep 8, 20264 EDGAR
- Sep 8, 20264 EDGAR
- Sep 8, 20264 EDGAR
- Aug 27, 2026144 EDGAR
- Aug 26, 20264 EDGAR
- Aug 21, 2026144 EDGAR
- Aug 14, 20264 EDGAR
- Aug 12, 2026144 EDGAR
- Aug 6, 202610-Q EDGAR
- Aug 6, 20268-K EDGAR
- Jul 1, 20264 EDGAR
The 352 filings since October 2021 can be filtered by form type and year here when JavaScript is on.
Every filing from the last five years, summarized. The full record is on SEC EDGAR.
Insider trades
23 open-market trades by officers, directors and large owners since October 2021: 13 buys and 10 sales. Grants, option exercises and gifts are left out.
| Date | Who | Trade | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| Aug 25, 2026 | McNamara PeterChief Scientific Officer | Sale | 43 | $36.52 | $1.6K | Form 4 |
| Aug 12, 2026 | McNamara PeterChief Scientific Officer | Sale | 43 | $35.00 | $1.5K | Form 4 |
| Jun 30, 2026 | McNamara PeterChief Scientific Officer | Sale | 172 | $35.00 | $6.0K | Form 4 |
| May 4, 2026 | Ruddy Marcella K.Chief Medical Officer | Sale | 1,065 | $30.00 | $31.9K | Form 4 |
| Apr 1, 2026 | Ruddy Marcella K.Chief Medical Officer | Sale | 1,000 | $31.05 | $31.1K | Form 4 |
| Mar 6, 2026 | Ruddy Marcella K.Chief Medical Officer | Sale | 10,000 | $30.00 | $300.0K | Form 4 |
| Mar 6, 2026 | McNamara PeterChief Scientific Officer | Sale | 6,262 | $30.17 | $188.9K | Form 4 |
| Mar 4, 2026 | McNamara PeterChief Scientific Officer | Sale | 1,650 | $25.00 | $41.2K | Form 4 |
| Mar 3, 2026 | McNamara PeterChief Scientific Officer | Sale | 1,649 | $22.06 | $36.4K | Form 4 |
| Feb 11, 2026 | REICIN ALISEChief Executive Officer | Buy | 2,500 | $21.10 | $52.8K | Form 4 |
| Feb 11, 2026 | REICIN ALISEChief Executive Officer | Buy | 2,500 | $21.10 | $52.8K | Form 4 |
| Feb 10, 2026 | Lochner DanielChief Financial Officer | Buy | 6,000 | $21.61 | $129.7K | Form 4 |
| Apr 11, 2025 | SPRINGER TIMOTHY ADirector | Buy | 63,184 | $16.31 | $1.0M | Form 4 |
| Apr 10, 2025 | SPRINGER TIMOTHY ADirector | Buy | 53,950 | $16.73 | $902.6K | Form 4 |
| Apr 9, 2025 | SPRINGER TIMOTHY ADirector | Buy | 24,789 | $14.76 | $365.9K | Form 4 |
| Apr 7, 2025 | SPRINGER TIMOTHY ADirector | Buy | 500,000 | $17.10 | $8.6M | Form 4 |
| Apr 7, 2025 | MCGUIRE TERRANCEDirector | Sale | 500,000 | $17.10 | $8.6M | Form 4 |
| Feb 5, 2025 | SPRINGER TIMOTHY ADirector | Buy | 789,294 | $50.68 | $40.0M | Form 4 |
| Feb 5, 2025 | Lochner DanielChief Financial Officer | Buy | 4,617 | $54.14 | $250.0K | Form 4 |
| Oct 22, 2024 | SPRINGER TIMOTHY ADirector | Buy | 300,000 | $33.59 | $10.1M | Form 4 |
All 23 trades can be filtered by person here when JavaScript is on.
From Forms 4 filed with the SEC.
Major holders
Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.
- TCG Crossover GP II, LLCSCHEDULE 13G, 1 filing Feb 27, 202663
- Aberdeen Group plcSCHEDULE 13G, 1 filing Jan 29, 202664
- Deep Track Capital, LPSCHEDULE 13G/A, 3 filings Feb 14, 2022 to Nov 14, 202565
- EcoR1 Capital, LLCSCHEDULE 13G/A, 3 filings Jul 1, 2024 to Nov 14, 202566
- FMR LLCSCHEDULE 13G/A, 4 filings Jul 10, 2024 to May 12, 202567
- Terrance McGuireSCHEDULE 13D/A, 3 filings Jun 25, 2024 to Apr 7, 202568
- Timothy A. SpringerSCHEDULE 13D/A, 5 filings Jun 26, 2024 to Apr 7, 202569
- Vida Ventures II, LLCSCHEDULE 13D/A, 3 filings Jun 27, 2024 to Apr 7, 202570
- BML Investment Partners, L.P.SCHEDULE 13G/A, 4 filings Jul 24, 2023 to Feb 13, 202571
- Newtyn Management, LLCSC 13G/A, 2 filings Feb 14, 2024 to Nov 14, 202472
- Atlas Venture Fund X, L.P.SC 13D/A, 1 filing Oct 28, 202473
- ADAR1 Partners, LPSCHEDULE 13G, 1 filing Feb 23, 202474
- TANG CAPITAL PARTNERS LPSC 13G/A, 2 filings Jun 6, 2023 to Feb 14, 202475
- GMT CAPITAL CORPSC 13G/A, 3 filings Feb 10, 2022 to Feb 13, 202476
- Farallon Capital Partners, L.P.SC 13G/A, 2 filings Feb 17, 2023 to Jan 24, 202477
- K2 PRINCIPAL FUND, L.P.SC 13G/A, 2 filings Aug 1, 2022 to Feb 8, 202378
- BlackRockSC 13G, 2 filings Feb 3, 2022 to Jul 8, 202279
- Federated HermesSC 13G/A, 2 filings Feb 14, 2022 to May 10, 202280
- JPMorgan ChaseSC 13G/A, 2 filings Jan 7, 2022 to Mar 9, 202281
- Camber Capital Management LPSC 13G/A, 1 filing Feb 14, 202282
Executive pay
What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.
| Year | Executive | Age | Salary | Total pay |
|---|---|---|---|---|
| 2025 | Alise ReicinM.D. | 65 | $640.8K | $7.4M83 |
| 2025 | Daniel LochnerM.B.A. | 43 | $488.9K | $3.1M83 |
| 2025 | Marcella K. RuddyM.D. | 63 | $501.1K | $3.1M83 |
| 2024 | PresidentCEO and Director | $606.2K | $5.9M83 | |
| 2024 | Chief Financial Officer | $277.1K | $2.3M83 | |
| 2024 | Chief Medical Officer | $476.2K | $1.8M83 | |
| 2024 | Erik OstrowskiM.B.A. | $254.1K | $1.1M83 |
Funding
Where the company's money came from, by calendar year: private offerings filed with the SEC, federal grants, loans, contracts and other assistance from USAspending.gov, and PPP loans from the SBA. Each bar links to the records below.
- Private raises (Form D) $185.0M
Figures by year
| Year | Private raises (Form D) | Total |
|---|---|---|
| 2025 | $185.0M | $185.0M |
Private raises
Private offerings the company reported to the SEC on Form D. The amount is what the latest filing says was sold so far, charted in the year of the first sale. Covers filings since Oct 1, 2021.
Held by these funds
The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.
| Fund | Shares | Value | Share of the fund | Change |
|---|---|---|---|---|
| Fmr LLC | 2,830,378 | $97.3M | 0.0% | +13,884 |
| TCG Crossover Management, LLC | 1,204,891 | $41.4M | 1.0% | No change |
| Aberdeen Group plc | 1,141,824 | $39.3M | 0.1% | No change |
| BlackRock, Inc. | 862,592 | $29.7M | 0.0% | +2,240 |
| First Light Asset Management, LLC | 800,726 | $27.5M | 1.7% | +152,983 |
| Baker Bros. Advisors LP | 607,788 | $20.9M | 0.1% | No change |
| 5AM Venture Management, LLC | 606,660 | $20.9M | 7.2% | No change |
| Braidwell LP | 596,900 | $20.5M | 0.8% | −250,251 |
| Vanguard Capital Management LLC | 488,805 | $16.8M | 0.0% | +15,273 |
| Vestal Point Capital, LP | 425,000 | $14.6M | 0.3% | +97,000 |
| Kennedy Capital Management LLC | 282,202 | $9.7M | 0.2% | −4,480 |
| Geode Capital Management, LLC | 270,461 | $9.3M | 0.0% | +2,188 |
| Orbimed Advisors LLC | 226,600 | $7.8M | 0.1% | No change |
| State Street Corp | 219,908 | $7.6M | 0.0% | +6,403 |
| Ikarian Capital, LLC | 205,837 | $7.1M | 1.2% | +48,300 |
| D. E. Shaw & Co., Inc. | 186,550 | $6.4M | 0.0% | +70,430 |
| Marshall Wace, Llp | 172,101 | $5.9M | 0.0% | −57,494 |
| Millennium Management LLC | 165,525 | $5.7M | 0.0% | +107,177 |
| Squarepoint Ops LLC | 145,028 | $5.0M | 0.0% | −19,391 |
| Ameriprise Financial Inc | 142,448 | $4.9M | 0.0% | −984 |
| Wells Fargo & Company/mn | 117,428 | $4.0M | 0.0% | +4,764 |
| Northern Trust Corp | 113,904 | $3.9M | 0.0% | +35,551 |
| Soleus Capital Management, L.P. | 101,684 | $3.5M | 0.1% | −20,000 |
| Woodline Partners LP | 100,000 | $3.4M | 0.0% | No change |
| Vanguard Portfolio Management LLC | 94,414 | $3.2M | 0.0% | +30,807 |
13F reports cover disclosed long positions in U.S. stocks only.
SEC filer profile
How Tectonic Therapeutic, Inc. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.
- Name on EDGARTectonic Therapeutic, Inc.1
- CIK0001681087
- Employer ID (EIN)81-07105854
- Filer statusNon-accelerated filer not an emerging growth company; a smaller reporting company; not a shell company4
- Incorporated inDelaware4
- Fiscal year endsDecember 311
- Industry code (SIC)2836 Biological Products, (No Diagnostic Substances)1
- SEC reviewing officeOffice of Life Sciences, Division of Corporation Finance1
- Business address490 Arsenal Way, Suite 200, Watertown, MA1
- Phone(339) 666-33201
- Shares outstanding19,549,366 as of Jul 31, 202612
- Public float$232.0M as of Jun 30, 20254
- AuditorDeloitte & Touche LLP, Boston, Massachusetts PCAOB ID 34; no auditor attestation of internal control over financial reporting4
- On EDGAR sinceAug 3, 20161
- Filings578 in all: 4 (183), 8-K (103), 3 (38), 10-Q (25), SC 13G/A (23), SC 13G (17), 144 (16), CORRESP (15)1
All 45 form types
424B5 (14), S-8 (14), UPLOAD (12), EFFECT (10), 10-K (8), 425 (8), 424B3 (7), DEF 14A (7), SC 13D/A (7), DEFA14A (6), SC 13D (6), SCHEDULE 13D/A (6), SCHEDULE 13G/A (6), S-3 (4), SCHEDULE 13G (4), 8-K/A (3), ARS (3), D (3), POS AM (3), S-1 (3), S-1/A (3), S-4/A (3), 4/A (2), S-8 POS (2), SEC STAFF LETTER (2), 3/A (1), 424B4 (1), 5 (1), 8-A12B (1), CERT (1), CT ORDER (1), DRS (1), DRS/A (1), DRSLTR (1), RW (1), S-1MEF (1), S-4 (1)
- Latest filingsAnnual report (10-K) Feb 26, 2026
Quarterly report (10-Q) Aug 6, 2026
Proxy statement (DEF 14A) Apr 24, 2026
Latest 8-K (8-K) Sep 29, 2026
Securities registered for trading
| Class | Symbol | Exchange |
|---|---|---|
| Common Stock, par value $0.0001 per share | TECX | The Nasdaq Stock Market LLC |
From the cover page of the 10-K filed Feb 26, 2026 (Section 12(b) of the Exchange Act).4
Risk factors and legal proceedings
The risks Tectonic Therapeutic, Inc. names in Item 1A of its 10-K filed Feb 26, 2026: 74 risks under these headings, as written.4
- Risks Related to Our Financial Position and Cash Needs
- We have a limited operating history and have incurred net losses in every year since our inception. We expect to continue to incur net losses in the future.
- We will need substantial additional funding in order to complete the development and commence commercialization of our product candidates. Failure to obtain this necessary capital when needed may force us to delay, reduce or eliminate certain of our product development or research operations.
- Raising additional capital will cause dilution to our stockholders, and may restrict our operations, or require us to relinquish rights to our product candidates.
- Risks Related to the Discovery, Development and Regulatory Approval of Our Product Candidates
- We have limited experience in therapeutic discovery and development and our GEODe™ platform may never result in the regulatory approval of a product candidate.
- We are early in our development efforts. If we are unable to advance TX45, TX2100 or any of our other product candidates through clinical development, obtain regulatory approval and ultimately commercialize TX45, TX2100 or any of our other product candidates, or experience significant delays in doing so, our business will be materially harmed.
- All of our product candidates are in discovery, preclinical or Phase 1 and Phase 2 clinical trials. Clinical trials are difficult to design and implement, and they involve a lengthy and expensive process with uncertain outcomes. We may experience delays in completing, or ultimately be unable to complete, the development and commercialization of TX45, TX2100 or any future product candidates.
- Our clinical trials may fail to demonstrate substantial evidence of the safety, efficacy, purity and potency of our product candidates or any future product candidates, which would prevent or delay or limit the scope of regulatory approval and commercialization.
- The results of preclinical studies and early-stage clinical trials of our product candidates may not be predictive of the results of later-stage clinical trials. Initial success in our ongoing clinical trials may not be indicative of results obtained when these trials are completed or in later-stage trials.
- Our product candidates may be associated with serious adverse, undesirable or unacceptable side effects or other properties or safety risks, which may delay or halt their clinical development, or prevent marketing approval. If such side effects are identified during the development of our product candidates or following approval, we may suspend or abandon our development of such product candidates, the commercial profile of any approved label may be limited, or we may be subject to other significant negative consequences following marketing approval.
- We may find it difficult to enroll patients in our clinical trials, which could delay or prevent us from proceeding with, or otherwise adversely affect, clinical trials of our product candidates.
The other 63 risks
- Interim, topline and preliminary data from our clinical trials that we announce or publish from time to time may change as more patient data become available and are subject to audit and verification procedures that could result in material changes in the final data.
- Preclinical development is uncertain. Our preclinical programs may experience delays or may never advance to clinical trials, which would adversely affect our ability to obtain regulatory approvals or commercialize these programs on a timely basis or at all, which would have an adverse effect on our business.
- The regulatory approval processes of the FDA and comparable foreign regulatory authorities are lengthy, time consuming and inherently unpredictable, and if we are ultimately unable to obtain regulatory approval for our product candidates, our business will be substantially harmed.
- The FDA and any comparable foreign regulatory authorities may not accept data from trials conducted in locations outside of their jurisdiction.
- Even if we receive regulatory approval of a product candidate, we will be subject to ongoing regulatory obligations and continued regulatory review, which may result in significant additional expense and we may be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with such product candidate.
- If approved, our investigational products may face competition from biosimilars approved through an abbreviated regulatory pathway.
- We may become exposed to costly and damaging liability claims, either when testing our product candidates in the clinic or at the commercial stage, and our product liability insurance may not cover all damages from such claims.
- Due to our limited resources and access to capital, we prioritize development of certain product candidates over other potential product candidates. These decisions may prove to have been wrong and may adversely affect our ability to develop our own programs, our attractiveness as a commercial partner and may ultimately have an impact on our commercial success.
- We may seek orphan drug designation for product candidates we develop, and we may be unsuccessful or may be unable to maintain the benefits associated with orphan drug designation, including the potential for market exclusivity.
- Risks Related to Commercialization of Our Product Candidates
- If we are unable to successfully commercialize any product candidate for which we receive regulatory approval, or experience significant delays in doing so, our business will be materially harmed.
- We face significant competition from other biotechnology and pharmaceutical companies, and our operating results will suffer if we fail to compete effectively.
- We do not have a sales or marketing infrastructure and have no experience in the sale or marketing of biotechnology products. To achieve commercial success for any approved product, we must develop or acquire a sales and marketing organization, outsource these functions to third parties or enter into strategic collaborations.
- Even if a product candidate we develop receives marketing approval, it may fail to achieve the degree of market acceptance by physicians, patients, third-party payors and others in the medical community necessary for commercial success. The revenues that we generate from our sales may be limited, and we may never become profitable.
- Healthcare reform may negatively impact our ability to profitably sell TX45, TX2100 and any potential future product candidates, if approved.
- Inadequate funding for the FDA and other government agencies, including from government shutdowns, or other disruptions to these agencies’ operations, could hinder their ability to hire and retain key leadership and other personnel, prevent new products and services from being developed or commercialized in a timely manner or otherwise prevent those agencies from performing normal business functions on which the operation of our business may rely, which could negatively impact our business.
- Our relationships with healthcare providers, customers and third-party payors will be subject to applicable anti-kickback, fraud and abuse, transparency and other healthcare laws and regulations, which, if violated, could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm, administrative burdens and diminished profits and future earnings.
- Our business could be materially and adversely affected in the future by political unrest in China.
- International trade policies, including tariffs, sanctions and trade barriers may adversely affect our business, financial condition, results of operations and prospects.
- General supply chain issues may be exacerbated during disease outbreaks, epidemics and pandemics and may also impact the ability of our clinical trial sites to obtain basic medical supplies used in our trials in a timely fashion, if at all.
- Our estimates of market opportunity and forecasts of market growth may prove to be inaccurate, and even if the markets in which we compete achieve the forecasted growth, our business may not grow at similar rates, or at all.
- Even if we obtain approval to market TX45, TX2100 or other potential future product candidates, these products may become subject to unfavorable pricing regulations, reimbursement practices from third-party payors or healthcare reform initiatives in the United States and abroad, which could harm our business.
- Risks Related to Our Intellectual Property
- Our success depends in part on our ability to protect our intellectual property. It is difficult and costly to protect our proprietary rights and technology, and we may not be able to ensure their protection.
- We depend on intellectual property licensed from third parties and termination of any of these licenses could result in the loss of significant rights, which would harm our business.
- If we fail to comply with our obligations under our patent licenses with a third party, we could lose license rights that are important to our business.
- If we are unable to protect the confidentiality of our proprietary information, our business and competitive position would be harmed.
- Third-party claims of intellectual property infringement may prevent or delay our product discovery and development efforts.
- Third parties may assert that our employees or consultants have wrongfully used or disclosed confidential information or misappropriated proprietary information.
- We may not be successful in obtaining or maintaining necessary rights to develop any future product candidates on acceptable terms.
- We may be involved in lawsuits related to our patents or the patents of our licensors, which could be expensive, time-consuming and unsuccessful.
- Obtaining and maintaining our patent protection depends on compliance with various procedural, document submission, fee payment and other requirements imposed by governmental patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these requirements.
- Issued patents covering our product candidates could be found invalid or unenforceable if challenged in court or the USPTO.
- Changes in patent law in the U.S. and in ex-U.S. jurisdictions could diminish the value of patents in general, thereby impairing our ability to protect our products.
- We may not be able to protect our intellectual property rights throughout the world.
- We may incur substantial costs as a result of litigation or other proceedings relating to patents, and we may be unable to protect our rights to our products and technology.
- Patent terms may be inadequate to protect our competitive position on our product candidates for an adequate amount of time.
- If we do not obtain patent term extension and data exclusivity for any product candidates we may develop, our business may be materially harmed.
- If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our markets of interest and our business may be adversely affected.
- Risks Related to Our Reliance on Third Parties
- We currently rely on and expect to rely on in the future on the use of manufacturing suites in third-party facilities or on third parties to manufacture TX45, TX2100 and any other product candidates, and we may rely on third parties to produce and process our products, if approved. Our business could be adversely affected if we are unable to use third-party manufacturing suites or if the third-party manufacturers encounter difficulties in production.
- We rely, and expect to continue to rely, on third parties, including independent clinical investigators, contracted laboratories and CROs, to conduct our preclinical studies and clinical trials. If these third parties do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize our product candidates and our business could be substantially harmed.
- Our future collaborations will be important to our business. If we are unable to enter into new collaborations, or if these collaborations are not successful, our business could be adversely affected.
- Nonclinical research requires the use of Non-Human Primates (“NHP”), the supply of which could delay or prevent development of product candidates.
- Risks Related to Our Business Operations, Employee Matters and Managing Growth
- Our future success depends on our ability to retain key executives and to attract, retain and motivate qualified personnel.
- We may become exposed to costly and damaging liability claims, either when testing a product candidate in the clinical or at the commercial stage, and our product liability insurance may not cover all damages from such claims.
- Business disruptions could seriously harm our future revenue and financial condition and increase our costs and expenses.
- Failure to comply with health-related data protection laws and regulations could lead to government enforcement actions, including civil or criminal penalties, private litigation, and adverse publicity and could negatively affect our operating results and business.
- Our employees, principal investigators, consultants, and commercial partners may engage in misconduct or other improper activities, including non-compliance with regulatory standards and requirements and insider trading.
- If our information technology systems, or the information technology systems of our CROs, our CDMOs, service providers, our current and potential future partners or other third parties with whom we work fail or suffer security breaches, we could experience adverse consequences, including but not limited to material disruptions to our business operations and product development programs, regulatory investigations or actions, litigation, fines and penalties, reputational harm, loss of revenue or profits, or other adverse consequences.
- We are subject to U.S. and certain foreign anti-corruption laws and regulations, export and import controls, sanctions and embargoes. We could face liability and other serious consequences for violations which can harm our business.
- We or the third parties upon whom we depend may be adversely affected by earthquakes, fires or other natural disasters and our business continuity and disaster recovery plans may not adequately protect us from a serious disaster.
- Legislation or other changes in U.S. tax law could adversely affect our business and financial condition.
- Our ability to use our U.S. net operating loss carryforwards and certain other U.S. tax attributes may be limited.
- Unstable market and economic conditions may have serious adverse consequences on our business, financial condition and stock price.
- Future changes in financial accounting standards or practices may cause adverse and unexpected revenue fluctuations and adversely affect our reported results of operations.
- If we or any CDMOs and suppliers we engage fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could have a material adverse effect on the success of our business.
- We incur significantly increased costs as a result of operating as a public company, and our management will be required to devote substantial time to new compliance initiatives.
- Once we are no longer a smaller reporting company or otherwise no longer qualify for applicable exemptions, we will be subject to additional laws and regulations affecting public companies that will increase our costs and the demands on management and could harm our operating results and cash flows.
- Failure to build our finance infrastructure and improve our accounting systems and controls could impair our ability to comply with the financial reporting and internal controls requirements for publicly traded companies.
- Our disclosure controls and procedures may not prevent or detect all errors or acts of fraud.
- Stockholders previously filed lawsuits, which were subsequently dismissed, relating to the Merger; however, additional lawsuits could be filed.
- Risks Related to Ownership of Our Common Stock
- The market price of our common stock has been and is likely to continue to be volatile and fluctuate substantially.
- Sales of our common stock or the perception of such sales, by us or selling stockholders, in the public market or otherwise, could cause the market price for our securities to decline, even though selling stockholders would still realize a profit on sales at lower prices. Resales of the securities offered may cause the market price of such securities to drop significantly, even if our business is doing well.
- Our executive officers, directors and principal stockholders have the ability to control or significantly influence all matters submitted to our stockholders for approval.
- If equity research analysts do not publish research or reports, or publish unfavorable research or reports, about us, our business or our market, our stock price and trading volume could decline.
Sources
The numbers on this page point here. Each one links to the record it came from.
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- 16SEC EDGARBirgitte Volck, President
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- 25SEC EDGARDiana Escolar, Chief Medical Officer
- 26SEC EDGAREssra Ridha, Chief Medical Officer
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- 28SEC EDGARGeoffrey Mackay, Officer
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- 30SEC EDGARFrancois Nader, Board member
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- 32SEC EDGARPraveen P. Tipirneni, Board member
- 33SEC EDGARStefan Vitorovic, Board member
- 34SEC EDGARTerrance McGuire, Board member
- 35SEC EDGARTimothy A. Springer, Board member
- 36SEC EDGARGail M. Farfel, Board member
- 37SEC EDGARPhilip J. Vickers, Board member
- 38SEC EDGARAnnalisa Jenkins, Board member
- 39SEC EDGARBruce Booth, Board member
- 40SEC EDGARChristopher Paige, Board member
- 41SEC EDGARIan T. Clark, Board member
- 42SEC EDGARJoshua Resnick, Board member
- 43SEC EDGARPhilip B. Donenberg, Board member
- 44SEC EDGARScott Requadt, Board member
- 45SEC EDGARSteven Avruch, General counsel
- 46SEC EDGAROther events
- 47SEC EDGARResults of operations
- 48SEC EDGARShareholder vote; Other events
- 49SEC EDGARResults of operations
- 50
- 51SEC EDGARResults of operations
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- 53SEC EDGARResults of operations
- 54SEC EDGAROther events
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- 56SEC EDGARShareholder vote
- 57SEC EDGAROther events
- 58NasdaqNasdaq calendar
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