LRMR on Nasdaq
Zafgen (United States)
In its 2026 annual report the company says: “We are a clinical-stage biotechnology company focused on developing treatments for patients suffering from complex rare diseases using our novel cell penetrating peptide technology platform. Our lead product candidate, nomlabofusp, is a subcutaneously administered, recombinant fusion protein intended to deliver frataxin, an essential protein, to the mitochondria of patients with Friedreich's ataxia.”6 It was founded in 2005.1 It is headquartered in Boston.1 Its shares trade on Nasdaq under the symbol LRMR.1
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Last updated Oct 21, 2026.
Overview
- TickerLRMR on Nasdaq1
- IndustryPharmaceutical Preparations1
- HeadquartersBoston1
- Websitewww.zafgen.com
- Legal formDelaware corporation1
- Incorporated inDE4
- Business addressThree Bala Plaza East. Suite 506, Bala Cynwyd, Pa 190044
- Filer categoryNon-accelerated filer, Smaller reporting company4
- LEI529900NCBZHTTJV6HX733
- StatusActive3
- LEI statusLapsed (not renewed)3
- Registered addressc/o THE CORPORATION TRUST COMPANY, CORPORATION TRUST CENTER 1209 ORANGE ST, 19808 Wilmington, United States3
- Registered withDivision of Corporations, Department of State, 40651553
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We are a clinical-stage biotechnology company focused on developing treatments for patients suffering from complex rare diseases using our novel cell penetrating peptide (“CPP”) technology platform. Our lead product candidate, nomlabofusp, is a subcutaneously administered, recombinant fusion protein intended to deliver frataxin (“FXN”), an essential protein, to the mitochondria of patients with Friedreich's ataxia (“FA”). FA is a rare, progressive, and fatal disease in which patients are unable to produce sufficient FXN due to a genetic abnormality. Currently, there are no treatment options that address the core deficit of FA, low levels of FXN. Nomlabofusp represents the first potential therapy designed to systemically increase FXN levels in patients with FA.6 From its latest annual report
Financials
From the company’s reports to the SEC. Every number links to the filing it came from.
Key numbers, fiscal 2019
Financial statements
Every line of the income statement as filed: the last 2 fiscal years, latest first.11
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Research and development | $154.2M | $73.3M |
| General and administrative | $18.3M | $17.6M |
| Total operating expenses | $172.5M | $90.9M |
| Loss from operations | -$172.5M | -$90.9M |
| Other income, net | $6.8M | $10.3M |
| Net loss | -$165.7M | -$80.6M |
| Unrealized gain (loss) on marketable securities | -$94.0K | $67.0K |
| Total other comprehensive gain (loss) | -$94.0K | $67.0K |
| Total comprehensive loss | -$165.8M | -$80.5M |
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.11
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $85.4M | $33.2M | |
| Short-term marketable securities | $51.4M | $150.2M | |
| Prepaid expenses and other current assets | $5.2M | $11.8M | |
| Total current assets | $142.0M | $195.3M | |
| Property and equipment, net | $622.0K | $881.0K | |
| Operating lease right-of-use assets | $2.1M | $2.8M | |
| Restricted cash | $606.0K | $606.0K | |
| Other assets | $523.0K | $596.0K | |
| Total assets | $145.8M | $200.2M | |
| Accounts payable | $5.2M | $2.4M | |
| Accrued expenses | $58.5M | $20.9M | |
| Operating lease liabilities, current | $1.1M | $1.1M | |
| Total current liabilities | $64.8M | $24.4M | |
| Operating lease liabilities | $3.0M | $4.1M | |
| Total liabilities | $67.8M | $28.4M | |
| Common stock, $0.001 par value per share; 115,000,000 shares authorized as of December 31, 2025 and December 31, 2024; 83,090,392 and 63,815,065 shares issued and outstanding as of December 31, 2025 and December 31, 2024, respectively | $83.0K | $64.0K | |
| Additional paid-in capital | $512.8M | $440.8M | |
| Accumulated deficit | -$434.8M | -$269.2M | |
| Accumulated other comprehensive gain | $54.0K | $148.0K | |
| Total stockholders' equity | $78.1M | $171.8M | $81.7M |
| Total liabilities and stockholders' equity | $145.8M | $200.2M | |
| Preferred stock, par value per share | $0.00 | $0.00 | |
| Preferred stock, shares authorized | 5.0M shares | 5.0M shares | |
| Preferred stock, shares issued | 250.0K shares | 0 shares | |
| Preferred stock, shares outstanding | 250.0K shares | 0 shares | |
| Common stock, par value per share | $0.00 | $0.00 | |
| Common stock, shares authorized | 115.0M shares | 115.0M shares | |
| Common stock, shares issued | 83.1M shares | 63.8M shares | |
| Common stock, shares outstanding | 83.1M shares | 63.8M shares |
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $85.4M | $33.2M | |
| Short-term marketable securities | $51.4M | $150.2M | |
| Prepaid expenses and other current assets | $5.2M | $11.8M | |
| Total current assets | $142.0M | $195.3M | |
| Property and equipment, net | $622.0K | $881.0K | |
| Operating lease right-of-use assets | $2.1M | $2.8M | |
| Restricted cash | $606.0K | $606.0K | |
| Other assets | $523.0K | $596.0K | |
| Total assets | $145.8M | $200.2M | |
| Accounts payable | $5.2M | $2.4M | |
| Accrued expenses | $58.5M | $20.9M | |
| Operating lease liabilities, current | $1.1M | $1.1M | |
| Total current liabilities | $64.8M | $24.4M | |
| Operating lease liabilities | $3.0M | $4.1M | |
| Total liabilities | $67.8M | $28.4M | |
| Common stock, $0.001 par value per share; 115,000,000 shares authorized as of December 31, 2025 and December 31, 2024; 83,090,392 and 63,815,065 shares issued and outstanding as of December 31, 2025 and December 31, 2024, respectively | $83.0K | $64.0K | |
| Additional paid-in capital | $512.8M | $440.8M | |
| Accumulated deficit | -$434.8M | -$269.2M | |
| Accumulated other comprehensive gain | $54.0K | $148.0K | |
| Total stockholders' equity | $78.1M | $171.8M | $81.7M |
| Total liabilities and stockholders' equity | $145.8M | $200.2M | |
| Preferred stock, par value per share | $0.00 | $0.00 | |
| Preferred stock, shares authorized | 5.0M shares | 5.0M shares | |
| Preferred stock, shares issued | 250.0K shares | 0 shares | |
| Preferred stock, shares outstanding | 250.0K shares | 0 shares | |
| Common stock, par value per share | $0.00 | $0.00 | |
| Common stock, shares authorized | 115.0M shares | 115.0M shares | |
| Common stock, shares issued | 83.1M shares | 63.8M shares | |
| Common stock, shares outstanding | 83.1M shares | 63.8M 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.11
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Net loss | -$165.7M | -$80.6M |
| Stock-based compensation expense | $7.0M | $8.8M |
| Lease expense | -$281.0K | -$189.0K |
| Depreciation expense | $350.0K | $318.0K |
| Amortization of premium on marketable securities | -$1.7M | -$5.3M |
| Prepaid expenses and other current assets | $6.7M | -$8.5M |
| Accounts payable | $2.8M | $1.1M |
| Accrued expenses | $37.6M | $13.4M |
| Other assets | $73.0K | $63.0K |
| Net cash used in operating activities | -$113.2M | -$70.8M |
| Purchases of property and equipment | -$91.0K | -$515.0K |
| Purchases of marketable securities | -$83.6M | -$227.9M |
| Maturities of marketable securities | $184.0M | $143.0M |
| Net cash provided by (used in) investing activities | $100.3M | -$85.4M |
| Proceeds from issuance of common stock, net of issuance costs | $65.1M | $161.8M |
| Proceeds from exercise of stock options and warrants | $77.0K | |
| Net cash provided by financing activities | $65.1M | $161.9M |
| Net increase in cash, cash equivalents and restricted cash | $52.2M | $5.7M |
| Offering costs included in accounts payable and accrued expense | $100.0K | $50.0K |
| Leased assets obtained in exchange for new operating lease liabilities | $465.0K |
No quarter-by-quarter statement was filed.
Corporate structure
Zafgen (United States) sits at the top of its group. 2 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.
Major holders of Zafgen (United States)
- Blue Owl Capital Filed SCHEDULE 13G/A on Zafgen (United States), latest May 14, 2026 (4 filings since Feb 14, 2024)
- MILLENNIUM MANAGEMENT LLC Filed SCHEDULE 13G/A on Zafgen (United States), latest Apr 30, 2026 (3 filings since Jun 17, 2025)
- James E. Flynn Filed SCHEDULE 13D/A on Zafgen (United States), latest Mar 2, 2026 (7 filings since Sep 16, 2022)
- RA CAPITAL MANAGEMENT, L.P. Filed SCHEDULE 13G/A on Zafgen (United States), latest Feb 17, 2026 (4 filings since Feb 14, 2022)
- Opaleye Management Inc. Filed SCHEDULE 13G on Zafgen (United States), latest Aug 29, 2025 (4 filings since Feb 18, 2022)
- Janus Henderson Group Ltd. Filed SCHEDULE 13G/A on Zafgen (United States), latest Aug 14, 2025 (6 filings since Aug 18, 2023)
- Goldman Sachs Filed SCHEDULE 13G/A on Zafgen (United States), latest May 13, 2025 (2 filings since Nov 6, 2024)
- BlackRock Filed SCHEDULE 13G/A on Zafgen (United States), latest Apr 22, 2025 (2 filings since Feb 4, 2025)
- Verition Fund Management LLC Filed SC 13G/A on Zafgen (United States), latest Nov 14, 2024 (2 filings since Feb 14, 2024)
- PERCEPTIVE ADVISORS LLC Filed SC 13G/A on Zafgen (United States), latest Feb 14, 2024 (2 filings since Feb 14, 2023)
- CHI Advisors LLC Filed SC 13G/A on Zafgen (United States), latest Feb 13, 2023 (2 filings since Feb 11, 2022)
- ACUTA CAPITAL PARTNERS, LLC Filed SC 13G/A on Zafgen (United States), latest Feb 15, 2022
- Zafgen (United States) Boston, Massachusetts, United States
- Zafgen Australia Pty Ltd. Subsidiary · Australia
Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); 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 Zafgen (United States) 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 | $2.5M11 Dec 31, 2025 | $2.4M11 Dec 31, 2024 | +3.8% |
| Accumulated depreciation | $1.9M11 Dec 31, 2025 | $1.5M11 Dec 31, 2024 | +22.7% |
| Property and equipment, net | $622.0K11 Dec 31, 2025 | $881.0K11 Dec 31, 2024 | −29.4% |
| Operating-lease assets (leased space) | $2.1M11 Dec 31, 2025 | $2.8M11 Dec 31, 2024 | −27.1% |
Investments
| Item | Latest | A year before | Change |
|---|---|---|---|
| Cash and cash equivalents | $85.4M11 Dec 31, 2025 | $33.2M11 Dec 31, 2024 | +157.1% |
| Marketable securities, current | $51.4M11 Dec 31, 2025 | $150.2M11 Dec 31, 2024 | −65.8% |
| Debt securities available for sale | $51.4M11 Dec 31, 2025 | $150.2M11 Dec 31, 2024 | −65.8% |
Properties, in its own words
We are party to an operating lease for approximately 3,927 square feet of laboratory space in King of Prussia, PA. We believe the lab space is sufficient for our needs for the next several years.
We are party to an operating lease for approximately 8,104 square feet of office space in Bala Cynwyd, Pennsylvania that serves as our corporate office. On November 24, 2025, we entered into a lease for an additional 7,107 square footage of office space through January 31, 2030 at our Bala Cynwyd Pennsylvania location and extended the term of all our other Bala Cynwyd space through January 31, 2030. We expect to occupy the additional 7,107 of additional office space when renovations are complete, which is expected to be around April 1, 2026.
The rest of Item 2
We are party to an operating lease for approximately 17,705 square feet of office space in Boston, Massachusetts. This lease expires in October 2029. On October 27, 2020, we entered into a sublease agreement whereby we subleased all 17,705 square feet of office space leased under the Boston Lease until October 2029.
Item 2 of the 10-K filed Mar 19, 2026.6
Leadership
Who has led Zafgen (United States), and when. Pick a name to see everywhere that person has worked.
Chief executive
Chief financial officer
- Chief executive officerJeffrey S. Hatfield Oct 11, 2017 to Jan 24, 201913
- Chief executive officerThomas E. Hughes Jun 18, 2014 to May 15, 201714
- PresidentThomas E. Hughes Jul 26, 2016 to May 15, 201715
- PresidentPatrick Loustau Jun 18, 2014 to Apr 4, 201616
- Chief financial officerMichael Celano Jun 5, 2020 to now17
- Chief financial officerPatricia L. Allen Mar 3, 2015 to Jan 24, 201918
Board members and other officers (28)
- Chief Development OfficerGopi Shankar Feb 9, 2023 to now19
- Chief Medical OfficerRussell Clayton Jul 18, 2023 to now20
- OfficerPriya Singhal Mar 11, 2019 to Apr 4, 201921
- Chief Business OfficerBrian McVeigh May 30, 2018 to Jan 24, 201922
- OfficerThomas E. Hughes Oct 11, 2017 to Jun 29, 201823
- Chief Commercial OfficerAlicia Secor Jun 18, 2014 to Apr 4, 201624
- Chief Medical OfficerDennis D. Kim Jun 18, 2014 to Jan 24, 201925
- OfficerPatricia L. Allen Jun 18, 2014 to Jun 18, 201426
- Board memberJeffrey W. Sherman Oct 5, 2023 to now27
- Board memberJonathan S. Leff Jun 5, 2020 to now28
- Board memberJoseph Truitt Jun 5, 2020 to now29
- Board memberThomas Edward Hamilton Jun 5, 2020 to now30
- Board memberJames E. Flynn Jun 8, 2020 to now31
- Board memberMgmt Hif L.p. Deerfield Jun 8, 2020 to now31
- Board memberMgmt L.p. Deerfield Iv. Jun 8, 2020 to now31
- Board memberWendy Everett Jun 7, 2018 to Jun 27, 201932
- Board memberJeffrey S. Hatfield Oct 11, 2017 to Jan 24, 201913
- Board memberThomas O. Daniel Mar 10, 2016 to May 17, 202133
- Board memberCameron Geoffrey McDonough Sep 28, 2015 to Jun 27, 201934
- Board memberRobert J. Perez Sep 28, 2015 to Jun 27, 201935
- Board memberAvi Y. Goldberg Jun 18, 2014 to Sep 21, 201536
- Board memberBruce Booth Jun 18, 2014 to Jan 5, 201837
- Board memberFrank E. Thomas Jun 18, 2014 to now38
- Board memberJohn L. Lamattina Jun 18, 2014 to Jun 27, 201939
- Board memberKevin P. Starr Jun 18, 2014 to Sep 25, 201540
- Board memberPeter Barrett Jun 18, 2014 to May 12, 202241
- Board memberThomas E. Hughes Jun 18, 2014 to Jun 29, 201814
- Board memberFrances K. Heller Sep 18, 2014 to Oct 17, 201742
Subsidiaries and ownership
Subsidiaries (Exhibit 21)
- Zafgen Australia Pty Ltd. Australia5
The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.
Former names
Timeline
- Sep 29, 20268-K Executive or director change43
- Aug 4, 20268-K Results of operations; Other events44
- Jun 29, 20268-K Other events45
- May 19, 20268-K Shareholder vote46
- May 14, 20268-K Results of operations; Other events47
- Mar 19, 20268-K Results of operations48
- Mar 9, 20268-K Other events49
- Feb 27, 20268-K Entered a material agreement50
- Feb 24, 20268-K Other events51
- Jan 22, 20268-K Unregistered sale of shares; Bylaws or fiscal year changed52
- Jan 12, 20268-K Results of operations; Other events53
- Dec 17, 20258-K Unregistered sale of shares; Bylaws or fiscal year changed54
- Oct 11, 2017New chief executive Jeffrey S. Hatfield becomes CEO13
- Jun 18, 2014New chief executive Thomas E. Hughes becomes CEO14
- 2005Founded Founded1
Calendar
Coming up
- Nov 4, 2026Reports results for the quarter ending Sep/2026 A year earlier it reported ($0.61) a share, on Nov 5, 2025.55
When it reported results
- Aug 4, 2026Reported quarterly or annual results44
- May 14, 2026Reported quarterly or annual results47
- Mar 19, 2026Reported quarterly or annual results48
- Jan 12, 2026Reported quarterly or annual results53
- Nov 5, 2025Reported quarterly or annual results56
- Aug 14, 2025Reported quarterly or annual results57
- Jul 29, 2025Reported quarterly or annual results58
- Apr 30, 2025Reported quarterly or annual results59
Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar
Filings
232 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 66 major events, 72 insider forms, 41 large holders, 33 other. The latest 20:
- Oct 1, 20264 EDGAR
- Oct 1, 20263 EDGAR
- Sep 29, 20268-K EDGAR
- Aug 4, 202610-Q EDGAR
- Aug 4, 20268-K EDGAR
- Jul 8, 20264 EDGAR
- Jun 29, 20268-K EDGAR
- May 20, 20264 EDGAR
- May 20, 20264 EDGAR
- May 20, 20264 EDGAR
- May 20, 20264 EDGAR
- May 20, 20264 EDGAR
- May 20, 20264 EDGAR
- May 19, 20268-K EDGAR
- May 14, 202610-Q EDGAR
- May 14, 20268-K EDGAR
- May 14, 2026SCHEDULE 13G/A EDGAR
- Apr 30, 2026SCHEDULE 13G/A EDGAR
- Apr 20, 2026ARS EDGAR
- Apr 20, 2026DEF 14A EDGAR
The 232 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
17 open-market trades by officers, directors and large owners since October 2021: 17 buys and 0 sales. Grants, option exercises and gifts are left out.
| Date | Who | Trade | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| Jul 6, 2026 | Hamilton Thomas EdwardDirector | Buy | 50,000 | $3.34 | $167.0K | Form 4 |
| Feb 27, 2026 | Deerfield Mgmt HIF, L.P.Director | Buy | 5,000,000 | $5.00 | $25.0M | Form 4 |
| Feb 27, 2026 | Hamilton Thomas EdwardDirector | Buy | 100,000 | $5.00 | $500.0K | Form 4 |
| Feb 27, 2026 | THOMAS FRANK EDirector | Buy | 5,000 | $5.00 | $25.0K | Form 4 |
| Feb 27, 2026 | SHERMAN JEFFREY WDirector | Buy | 5,000 | $5.00 | $25.0K | Form 4 |
| Jul 31, 2025 | Deerfield Mgmt HIF, L.P.Director | Buy | 9,375,000 | $3.20 | $30.0M | Form 4 |
| Feb 16, 2024 | Deerfield Mgmt L.P.Director | Buy | 4,290,617 | $8.74 | $37.5M | Form 4 |
| Feb 16, 2024 | Hamilton Thomas EdwardDirector | Buy | 57,208 | $8.74 | $500.0K | Form 4 |
| Feb 14, 2024 | THOMAS FRANK EDirector | Buy | 2,000 | $11.00 | $22.0K | Form 4 |
| Dec 7, 2023 | Shankar GopiChief Development Officer | Buy | 5,000 | $3.73 | $18.6K | Form 4 |
| May 17, 2023 | Celano MichaelChief Financial Officer | Buy | 5,000 | $3.73 | $18.6K | Form 4 |
| May 17, 2023 | BEN-MAIMON CAROLEPresident and CEO | Buy | 5,000 | $3.71 | $18.6K | Form 4 |
| May 17, 2023 | Truitt JosephDirector | Buy | 2,750 | $3.73 | $10.3K | Form 4 |
| Sep 16, 2022 | Deerfield Mgmt HIF, L.P.Director | Buy | 11,111,108 | $3.15 | $35.0M | Form 4 |
| Sep 16, 2022 | Hamilton Thomas EdwardDirector | Buy | 317,460 | $3.15 | $1.0M | Form 4 |
| Sep 16, 2022 | Celano MichaelChief Financial Officer | Buy | 31,746 | $3.15 | $100.0K | Form 4 |
| Sep 16, 2022 | BEN-MAIMON CAROLEPresident and CEO | Buy | 31,746 | $3.15 | $100.0K | Form 4 |
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.
- Blue Owl CapitalSCHEDULE 13G/A, 4 filings Feb 14, 2024 to May 14, 202660
- MILLENNIUM MANAGEMENT LLCSCHEDULE 13G/A, 3 filings Jun 17, 2025 to Apr 30, 202661
- James E. FlynnSCHEDULE 13D/A, 7 filings Sep 16, 2022 to Mar 2, 202662
- RA CAPITAL MANAGEMENT, L.P.SCHEDULE 13G/A, 4 filings Feb 14, 2022 to Feb 17, 202663
- Opaleye Management Inc.SCHEDULE 13G, 4 filings Feb 18, 2022 to Aug 29, 202564
- Janus Henderson Group Ltd.SCHEDULE 13G/A, 6 filings Aug 18, 2023 to Aug 14, 202565
- Goldman SachsSCHEDULE 13G/A, 2 filings Nov 6, 2024 to May 13, 202566
- BlackRockSCHEDULE 13G/A, 2 filings Feb 4, 2025 to Apr 22, 202567
- Verition Fund Management LLCSC 13G/A, 2 filings Feb 14, 2024 to Nov 14, 202468
- PERCEPTIVE ADVISORS LLCSC 13G/A, 2 filings Feb 14, 2023 to Feb 14, 202469
- CHI Advisors LLCSC 13G/A, 2 filings Feb 11, 2022 to Feb 13, 202370
- ACUTA CAPITAL PARTNERS, LLCSC 13G/A, 1 filing Feb 15, 202271
- ORBIMED ADVISORS LLCSC 13G/A, 1 filing Feb 11, 202272
- Vivo Capital IX, LLCSC 13G/A, 1 filing Feb 11, 202273
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 |
|---|---|---|---|---|
| Deerfield Management Company, L.P. | 35,606,974 | $108.6M | 1.4% | No change |
| Blue Owl Capital Holdings LP | 9,163,157 | $27.9M | 4.2% | +2,043,150 |
| BlackRock, Inc. | 5,678,035 | $17.3M | 0.0% | +1,925,835 |
| Defilade Capital Management, L.P. | 3,670,135 | $11.2M | 1.5% | New |
| Driehaus Capital Management LLC | 3,163,423 | $9.6M | 0.1% | +229,024 |
| Vanguard Capital Management LLC | 2,974,901 | $9.1M | 0.0% | +108,552 |
| Rtw Investments, LP | 2,565,999 | $7.8M | 0.1% | +1,065,999 |
| Aqr Capital Management LLC | 2,371,414 | $7.2M | 0.0% | +1,553,897 |
| Marshall Wace, Llp | 2,012,458 | $6.1M | 0.0% | +1,078,994 |
| DAFNA Capital Management LLC | 2,008,164 | $6.1M | 1.2% | −21,000 |
| Goldman Sachs Group Inc | 1,752,910 | $5.3M | 0.0% | +191,325 |
| Geode Capital Management, LLC | 1,679,003 | $5.1M | 0.0% | +570,242 |
| Qube Research & Technologies Ltd | 1,641,042 | $5.0M | 0.0% | +793,398 |
| Citadel Advisors LLC | 1,456,825 | $4.4M | 0.0% | +937,693 |
| State Street Corp | 1,411,804 | $4.3M | 0.0% | +500,478 |
| Vanguard Portfolio Management LLC | 1,403,172 | $4.3M | 0.0% | +996,614 |
| Woodline Partners LP | 1,400,850 | $4.3M | 0.0% | No change |
| Millennium Management LLC | 1,333,037 | $4.1M | 0.0% | −2,292,241 |
| Dimensional Fund Advisors LP | 961,083 | $2.9M | 0.0% | +162,621 |
| Fmr LLC | 937,368 | $2.9M | 0.0% | +873,798 |
| Sphera Funds Management Ltd. | 926,004 | $2.8M | 0.4% | New |
| Nuveen, LLC | 895,304 | $2.7M | 0.0% | +220,389 |
| Alyeska Investment Group, L.P. | 617,211 | $1.9M | 0.0% | No change |
| Northern Trust Corp | 550,266 | $1.7M | 0.0% | +173,763 |
| Vanguard Fiduciary Trust Co | 448,168 | $1.4M | 0.0% | +158,536 |
13F reports cover disclosed long positions in U.S. stocks only.
SEC filer profile
How Zafgen (United States) is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.
- Name on EDGARLarimar Therapeutics, Inc.2
- CIK0001374690
- Employer ID (EIN)20-38576706
- Filer statusNon-accelerated filer not an emerging growth company; a smaller reporting company; not a shell company6
- Incorporated inDelaware6
- Fiscal year endsDecember 312
- Industry code (SIC)2834 Pharmaceutical Preparations2
- SEC reviewing officeOffice of Life Sciences, Division of Corporation Finance2
- Business addressThree Bala Plaza East. Suite 506, Bala Cynwyd, PA 190042
- Phone844-511-90562
- Shares outstanding103,882,937 as of Aug 2, 202610
- Public float$94.7M as of Jun 30, 20256
- AuditorPricewaterhouseCoopers LLP, Philadelphia, Pennsylvania, USA PCAOB ID 238; no auditor attestation of internal control over financial reporting6
- On EDGAR sinceAug 28, 20062
- Filings696 in all: 4 (228), 8-K (147), SC 13G/A (48), 10-Q (37), 3 (34), SC 13G (32), S-8 (17), 10-K (12)2
All 41 form types
DEF 14A (12), CORRESP (11), UPLOAD (11), 424B5 (10), SC 13D/A (10), SCHEDULE 13G/A (10), EFFECT (8), DEFA14A (7), S-1/A (7), D (6), S-3 (6), 8-K/A (5), ARS (4), SCHEDULE 13G (4), REGDEX (3), SC 13D (3), 4/A (2), 424B4 (2), PRE 14A (2), PRER14A (2), S-1 (2), S-1MEF (2), SCHEDULE 13D/A (2), 10-K/A (1), 144 (1), 8-A12B (1), CERTNAS (1), CT ORDER (1), D/A (1), DEFM14A (1), DRS (1), DRS/A (1), PREM14A (1)
- Latest filingsAnnual report (10-K) Mar 19, 2026
Quarterly report (10-Q) Aug 4, 2026
Proxy statement (DEF 14A) Apr 20, 2026
Latest 8-K (8-K) Sep 29, 2026
Securities registered for trading
| Class | Symbol | Exchange |
|---|---|---|
| Common Stock, par value $0.001 per share | LRMR | The Nasdaq Global Market |
From the cover page of the 10-K filed Mar 19, 2026 (Section 12(b) of the Exchange Act).6
Risk factors and legal proceedings
The risks Zafgen (United States) names in Item 1A of its 10-K filed Mar 19, 2026: 74 risks under these headings, as written.6
- Risks Related to Our Financial Position and Need for Capital
- We have incurred significant losses since our inception and anticipate that we will incur continued losses for the foreseeable future.
- We have no commercial revenue and may never become profitable.
- We may need to raise additional funding to complete the development and commercialization of nomlabofusp. This funding may not be available on acceptable terms, or at all. Failure to obtain this necessary capital when needed would force us to delay, limit or terminate our product development efforts or other operations.
- Raising additional capital may cause dilution to our existing stockholders, restrict our operations or require us to relinquish rights to our technologies, nomlabofusp or other product candidates that we may develop, in-license or acquire in the future.
- Our ability to use our NOLs and certain other tax attributes may be limited.
- Changes in tax laws and regulations may have a material adverse effect on our business, financial condition and results of operations.
- Risks Related to Our Product Development and Regulatory Approvals
- Our success is currently dependent upon the success of our lead product candidate, nomlabofusp. We cannot be certain that we will ultimately be successful with our clinical development or that we will ever be able to obtain regulatory approval for nomlabofusp.
- Clinical development is a lengthy and expensive process with an uncertain outcome, and the results of non-clinical studies, toxicology studies or clinical trials may not be predictive of future non-clinical studies, toxicology studies or clinical trial results.
- Failures or delays in the completion of our clinical trials could result in increased costs and could delay, prevent or limit our ability to generate revenue and continue our business.
- We may not be successful in our efforts to identify, discover or acquire additional product candidates.
The other 64 risks
- We have no marketed proprietary products and have not yet advanced a product candidate beyond Phase 2 clinical trials, which makes it difficult to assess our ability to develop nomlabofusp or any future product candidates and commercialize any resulting products independently.
- We cannot be certain that we will be able to successfully complete clinical trials for nomlabofusp or any other product candidates.
- FA has no FDA-approved therapies that address frataxin deficiency, which is the underlying cause of the disease, and clinical endpoints required to obtain approval are not well defined.
- Nomlabofusp, including the effects of long-term daily patient dosing, may cause adverse events or undesirable side effects in clinical trials that could delay or prevent its regulatory approval, limit the commercial profile of approved labeling, or result in significant negative consequences following regulatory approval, if any.
- Interim, “top-line,” and preliminary results from our clinical trials that we announce or publish from time to time may change as more patient data become available or as additional analyses are conducted, and as the data are subject to audit and verification procedures that could result in material changes in the final data.
- Our approach to discover and develop fusion proteins for delivering proteins is novel and may never lead to marketable products.
- Protein replacement therapies are novel, complex and difficult to manufacture. We could experience manufacturing problems that result in delays in the development or commercialization of our protein replacement therapy platform or product candidates or otherwise harm our business.
- The FDA's Fast track Designation and its Breakthrough Therapy Designation or any future expedited program designations may not lead to a faster development, regulatory review or approval process and it does not increase the likelihood that any of our product candidates will receive marketing approval.
- We intend to pursue accelerated approval from FDA for nomlabofusp for the treatment of Friedreich’s ataxia, however this may not lead to a faster development or regulatory review or approval process and does not increase the likelihood that we will receive marketing approval. If we are unable to obtain approval under an accelerated pathway, we may be required to conduct additional clinical trials beyond those that we contemplate, which could increase the expense of obtaining, reduce the likelihood of obtaining, and/or delay the timing of obtaining, necessary marketing approvals.
- We are targeting to submit a BLA to the FDA in June 2026 for marketing approval of nomlabofusp using the accelerated approval pathway; however, there can be no assurance FDA will approve our BLA submission for accelerated approval. Moreover, if FDA grants accelerated approval of nomlabofusp, there is no assurance that the FDA will grant traditional approval or that the accelerated approval will not be withdrawn.
- If we fail to maintain orphan drug designation or other regulatory exclusivity for nomlabofusp or obtain such exclusivity for any of our other product candidates in the future, our competitive position would be harmed.
- Although we have obtained rare pediatric disease designation for nomlabofusp, we may not be eligible to receive a priority review voucher in the event the FDA determines we no longer meet the criteria for designation, revokes the designation or FDA approval does not occur prior to September 30, 2026.
- If we fail to maintain PRIME designation in the European Union for nomlabofusp, our competitive position could be harmed.
- Changes in regulatory requirements, FDA guidance, guidance from other regulatory authorities or unanticipated events during our non-clinical or clinical trials of nomlabofusp or future product candidates may result in changes to clinical trial protocols or additional non-clinical or clinical trial requirements, which could result in increased costs to us and could delay our development timeline.
- Changes in funding or disruptions at the FDA, the SEC, patent offices in the United States and abroad and other government agencies caused by funding shortages or global health concerns could hinder their ability to hire and retain key leadership and other personnel, or otherwise prevent new or modified products from being developed, approved or commercialized in a timely manner or at all, 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.
- Regulatory requirements governing biologic products have changed frequently and may continue to change in the future. Such requirements may lengthen the regulatory review process, require us to perform additional non-clinical studies or clinical trials, and increase our costs, or may force us to delay, limit or terminate certain of our programs.
- The clinical trials of nomlabofusp and any future product candidates are, and the manufacturing and marketing of nomlabofusp and any future product candidates, will be subject to extensive and rigorous review and regulation by numerous government authorities in the United States and in other countries, such as within the European Union, where we intend to seek regulatory approval of, and market, any product candidates.
- We are subject to healthcare laws and regulations, and health information privacy and security laws, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings.
- Healthcare legislation, including potentially unfavorable pricing regulations or other healthcare reform initiatives may increase the difficulty and cost for us to obtain marketing approval of and commercialize our product candidates.
- Even if approved, reimbursement policies could limit our ability to sell product candidates that we elect to sell on our own.
- Even if we obtain marketing approval for a product candidate, our product candidates will remain subject to regulatory oversight.
- Even if we receive marketing approval for nomlabofusp in the United States, we may never receive regulatory approval to market nomlabofusp outside of the United States.
- Our future growth depends, in part, on our ability to penetrate foreign markets, where we would be subject to additional regulatory burdens and other risks and uncertainties.
- If we are unable to establish sales and marketing capabilities or enter into agreements with third parties to market and sell nomlabofusp, if approved, we may not be able to generate any revenue.
- Even if we receive marketing approval for nomlabofusp, we may not achieve broad market acceptance, which would limit the revenue that we generate from our sales.
- The FDA and other regulatory agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses. If we are found to have improperly promoted off-label uses, we may become subject to significant liability.
- Additional competing technologies could emerge, adversely affecting our opportunity to generate revenue from the sale of nomlabofusp, if approved.
- We may face competition from biosimilars and may face increasing competition over time.
- Risks Related to Our Business
- If we are unable to manage expected growth in the scale and complexity of our operations, including attracting and hiring additional qualified management, our performance may suffer.
- We may acquire businesses or products, or form strategic alliances, in the future, and we may not realize the benefits of such acquisitions or alliances.
- We may seek to establish collaborations and, if we are not able to establish them on commercially reasonable terms, we may have to alter our development and commercialization plans or expand our internal efforts and growth.
- We face risks related to health epidemics, and/or other outbreaks of communicable diseases, which could significantly disrupt our operations and may materially and adversely affect our business and financial conditions.
- We are subject to stringent and evolving U.S. and foreign laws, regulations and rules, contractual obligations, industry standards, policies and other obligations related to data privacy and security. Our actual or perceived failure to comply with such obligations could lead to regulatory investigations or actions; litigation; fines and penalties; disruptions of our business operations; reputational harm; loss of revenue or profits; and other adverse business consequences.
- Our internal computer systems, as well as those of CROs, CMOs, vendors, contractors, and consultants, and potential collaborators may experience failures, unauthorized access, or security breaches, potentially causing a material disruption in our product development programs, operations, harm to our brand, significant liabilities, loss of revenue, and additional costs.
- If our information technology systems or data, and/or those of third parties upon which we rely, are or were compromised, we could experience adverse consequences resulting from such compromise, including but not limited to regulatory investigations or actions, interruptions to operations or clinical trials, reputational harm, litigation, fines and penalties, disruptions of our business operations, and a loss of customers or sales.
- We face risks related to information technology regulatory and compliance requirements.
- We face the risk of shadow IT and unapproved software use by employees.
- We face potential product liability exposure, and, if claims are brought against us, we may incur substantial liability.
- Artificial intelligence presents risks and challenges that can impact our business, including by posing security risks to our confidential information, proprietary information and personal data.
- Risks Related to Our Reliance on Third Parties
- We have limited experience in conducting or supervising clinical trials and must outsource all clinical trials. As a result, many important aspects of our drug development programs are outside of our direct control.
- We rely on supply and manufacturing partners for drug supplies for our research and development, non-clinical activities, and clinical activities, and plan to do the same for any commercial supplies of our product candidates.
- We and our contract manufacturers are subject to significant regulation with respect to manufacturing our products. The manufacturing facilities on which we rely may not continue to meet regulatory requirements and have limited capacity.
- Changes in methods of product candidate manufacturing may result in additional costs and/or delays.
- Our contract manufacturers may be unable to successfully scale up manufacturing of our product candidate in sufficient quality or quantity in a timely manner, if at all, which may impair the clinical advancement and commercialization of our product candidate.
- We enter into various contracts in the normal course of our business in which we indemnify the other party to the contract. In the event we have to perform under these indemnification provisions, it could materially increase our costs and potential liability.
- To the extent we are able to enter into collaborative arrangements or strategic alliances, we may be exposed to risks related to those collaborations and alliances.
- Risks Related to Our Intellectual Property Rights
- If, in the United States and other countries, we are unable to adequately protect our proprietary technology or maintain issued patents which are sufficient to protect nomlabofusp or potential product candidates, third parties could compete against us more directly, which would have a material adverse impact on our business, results of operations, financial condition and prospects.
- Our key patents relating to nomlabofusp, which we license, will expire in 2040 and we will lose our ability to rely upon these patents to prevent competing products from entering the market, which may impair our ability to generate revenue.
- We may infringe the intellectual property rights of others, which may prevent or delay our product development efforts and stop us from commercializing or may increase the costs of commercializing nomlabofusp or other potential product candidates, if approved.
- We may be subject to claims challenging the inventorship or ownership of our patents and other intellectual property.
- 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.
- We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which could be expensive, time-consuming and unsuccessful.
- Issued patents covering our product candidates could be found invalid or unenforceable if challenged in court.
- We do not seek to protect our intellectual property rights in all jurisdictions throughout the world and we may not be able to adequately enforce our intellectual property rights even in the jurisdictions where we seek protection.
- We are dependent on licensed intellectual property for nomlabofusp. If we were to lose our rights to licensed intellectual property, we may not be able to continue developing or commercializing nomlabofusp, if approved.
- Some intellectual property may have been discovered through government funded programs and thus may be subject to federal regulations such as “march-in” rights, certain reporting requirements and a preference for U.S.-based companies. Compliance with such regulations may limit our exclusive rights and limit our ability to contract with non-U.S. manufacturers.
- We have not yet registered trademarks for a commercial trade name for nomlabofusp or other potential product candidates and failure to secure such registrations could adversely affect our business, financial condition and results of operations.
- Any trademarks we have obtained or may obtain may be infringed or successfully challenged, resulting in harm to our business.
- If we do not obtain additional protection under the Hatch-Waxman Amendments and similar foreign legislation by extending the patent terms and obtaining data exclusivity for nomlabofusp, our business may be materially harmed.
- Our proprietary rights may not adequately protect our technologies, which may adversely affect our position in the market, business, financial condition and results of operations.
- Changes in patent law in the U.S. and in foreign jurisdictions could diminish the value of patents in general, thereby impairing our ability to protect our products.
- We may be subject to damages resulting from claims that we or our employees have wrongfully used or disclosed alleged trade secrets of our employees’ former employers.
- Risks Related to Our Common Stock
- Our stock price could be highly volatile, and purchasers of our common stock could incur substantial losses.
- We must maintain effective internal controls over financial reporting, and if we are unable to do so, the accuracy and timeliness of our financial reporting may be adversely affected, which could have a material adverse effect on our business and stock price.
Legal proceedings
We may be subject to other legal proceedings and claims in the ordinary course of business. We cannot predict the results of any such disputes, and despite the potential outcomes, the existence thereof may have an adverse material impact on us due to diversion of management time and attention as well as the financial costs related to resolving such disputes.
The opening of Item 3, Legal Proceedings.6
Links
- Websitewww.zafgen.com1
- WikidataQ30269406
- SEC EDGARCIK 1374690
Sources
The numbers on this page point here. Each one links to the record it came from.
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- 15SEC EDGARThomas E. Hughes, President
- 16SEC EDGARPatrick Loustau, President
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- 21SEC EDGARPriya Singhal, Officer
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- 23SEC EDGARThomas E. Hughes, Officer
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- 25SEC EDGARDennis D. Kim, Chief Medical Officer
- 26SEC EDGARPatricia L. Allen, Officer
- 27SEC EDGARJeffrey W. Sherman, Board member
- 28SEC EDGARJonathan S. Leff, Board member
- 29SEC EDGARJoseph Truitt, Board member
- 30SEC EDGARThomas Edward Hamilton, Board member
- 31SEC EDGARJames E. Flynn, Board member
- 32SEC EDGARWendy Everett, Board member
- 33SEC EDGARThomas O. Daniel, Board member
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- 35SEC EDGARRobert J. Perez, Board member
- 36SEC EDGARAvi Y. Goldberg, Board member
- 37SEC EDGARBruce Booth, Board member
- 38SEC EDGARFrank E. Thomas, Board member
- 39SEC EDGARJohn L. Lamattina, Board member
- 40SEC EDGARKevin P. Starr, Board member
- 41SEC EDGARPeter Barrett, Board member
- 42SEC EDGARFrances K. Heller, Board member
- 43SEC EDGARExecutive or director change
- 44SEC EDGARResults of operations; Other events
- 45SEC EDGAROther events
- 46SEC EDGARShareholder vote
- 47SEC EDGARResults of operations; Other events
- 48SEC EDGARResults of operations
- 49SEC EDGAROther events
- 50SEC EDGAREntered a material agreement
- 51SEC EDGAROther events
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- 53SEC EDGARResults of operations; Other events
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