PASG on Nasdaq
Passage BIO, Inc.
In its 2026 annual report the company says: “We are a clinical stage genetic medicines company focused on improving the lives of patients with neurodegenerative diseases. Our primary focus is the development and advancement of cutting-edge, one-time gene therapies designed to target critical underlying pathologies in these conditions. Our lead clinical product candidate, PBFT02, seeks to elevate progranulin levels to enhance lysosomal function and slow disease progression across a variety of neurodegenerative diseases.”3 It is headquartered in Philadelphia, Pennsylvania.1 Its shares trade on Nasdaq under the symbol PASG.1
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Last updated Oct 21, 2026.
Overview
- TickerPASG on Nasdaq1
- IndustryBiological Products, (No Diagnostic Substances)1
- HeadquartersPhiladelphia, Pennsylvania1
- Incorporated inDE2
- Business addressOne Commerce Square, 2005 Market Street, 39Th Floor, Philadelphia, Pa 191032
- Filer categoryNon-accelerated filer, Smaller reporting company2
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We are a clinical stage genetic medicines company focused on improving the lives of patients with neurodegenerative diseases. Our primary focus is the development and advancement of cutting-edge, one-time gene therapies designed to target critical underlying pathologies in these conditions. We believe we have developed a differentiated approach to developing treatments for central nervous system, or CNS, disorders that allows us to select and advance product candidates with a higher probability of technical and regulatory success.3 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.9
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Research and development | $23.3M | $40.2M |
| General and administrative | $19.9M | $25.0M |
| Impairment of long-lived assets | $6.1M | $5.2M |
| Loss from operations | -$49.3M | -$70.4M |
| Other income (expense), net | $3.8M | $5.6M |
| Net loss | -$45.5M | -$64.8M |
| Net loss per share of common stock, basic | -$14.35 | -$21.04 |
| Net loss per share of common stock, diluted | -$14.35 | -$21.04 |
| Weighted average common shares outstanding, basic | 3.2M shares | 3.1M shares |
| Weighted average common shares outstanding, diluted | 3.2M shares | 3.1M shares |
| Unrealized gain (loss) on marketable securities | -$8.0K | $51.0K |
| Comprehensive loss | -$45.5M | -$64.7M |
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.9
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $46.3M | $37.6M | |
| Marketable securities | $0 | $39.2M | |
| Prepaid expenses and other current assets | $629.0K | $838.0K | |
| Prepaid research and development | $830.0K | $1.2M | |
| Total current assets | $47.8M | $78.8M | |
| Property and equipment, net | $4.1M | $9.3M | |
| Right of use assets - operating leases | $10.2M | $13.8M | |
| Other assets | $244.0K | $463.0K | |
| Total assets | $62.3M | $102.4M | |
| Accounts payable | $1.1M | $742.0K | |
| Accrued expenses and other current liabilities | $4.7M | $6.7M | |
| Non-refundable sublicense and transition services payments | $13.8M | $8.2M | |
| Operating lease liabilities | $3.6M | $3.7M | |
| Total current liabilities | $23.1M | $19.4M | |
| Operating lease liabilities - noncurrent | $20.4M | $21.8M | |
| Total liabilities | $43.5M | $41.2M | |
| Additional paidin capital | $723.5M | $720.5M | |
| Accumulated other comprehensive income (loss) | $8.0K | ||
| Accumulated deficit | -$704.8M | -$659.2M | |
| Total stockholders' equity | $18.8M | $61.3M | $111.3M |
| Total liabilities and stockholders' equity | $62.3M | $102.4M | |
| Preferred stock, par value (in dollars per share) | $0.00 | $0.00 | |
| Preferred stock, shares authorized | 10.0M shares | 10.0M shares | |
| Preferred stock, shares issued | 0 shares | 0 shares | |
| Preferred stock, shares outstanding | 0 shares | 0 shares | |
| Common stock, par value (in dollars per share) | $0.00 | $0.00 | |
| Common stock, shares authorized | 300.0M shares | 300.0M shares | |
| Common stock, shares issued | 3.2M shares | 3.2M shares | |
| Common stock, shares outstanding | 3.2M shares | 3.2M shares |
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $46.3M | $37.6M | |
| Marketable securities | $0 | $39.2M | |
| Prepaid expenses and other current assets | $629.0K | $838.0K | |
| Prepaid research and development | $830.0K | $1.2M | |
| Total current assets | $47.8M | $78.8M | |
| Property and equipment, net | $4.1M | $9.3M | |
| Right of use assets - operating leases | $10.2M | $13.8M | |
| Other assets | $244.0K | $463.0K | |
| Total assets | $62.3M | $102.4M | |
| Accounts payable | $1.1M | $742.0K | |
| Accrued expenses and other current liabilities | $4.7M | $6.7M | |
| Non-refundable sublicense and transition services payments | $13.8M | $8.2M | |
| Operating lease liabilities | $3.6M | $3.7M | |
| Total current liabilities | $23.1M | $19.4M | |
| Operating lease liabilities - noncurrent | $20.4M | $21.8M | |
| Total liabilities | $43.5M | $41.2M | |
| Additional paidin capital | $723.5M | $720.5M | |
| Accumulated other comprehensive income (loss) | $8.0K | ||
| Accumulated deficit | -$704.8M | -$659.2M | |
| Total stockholders' equity | $18.8M | $61.3M | $111.3M |
| Total liabilities and stockholders' equity | $62.3M | $102.4M | |
| Preferred stock, par value (in dollars per share) | $0.00 | $0.00 | |
| Preferred stock, shares authorized | 10.0M shares | 10.0M shares | |
| Preferred stock, shares issued | 0 shares | 0 shares | |
| Preferred stock, shares outstanding | 0 shares | 0 shares | |
| Common stock, par value (in dollars per share) | $0.00 | $0.00 | |
| Common stock, shares authorized | 300.0M shares | 300.0M shares | |
| Common stock, shares issued | 3.2M shares | 3.2M shares | |
| Common stock, shares outstanding | 3.2M shares | 3.2M 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.9
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Net loss | -$45.5M | -$64.8M |
| Depreciation and amortization | $728.0K | $3.1M |
| Sharebased compensation | $3.0M | $5.8M |
| Amortization of premium and discount on marketable securities, net | $129.0K | -$1.5M |
| Impairment of long-lived assets | $6.1M | $5.2M |
| Other non-cash items | $14.0K | |
| Prepaid expenses and other current assets, and other assets | $228.0K | $255.0K |
| Prepaid research and development | $391.0K | $1.5M |
| Non-refundable sublicense and transition services payments received | $4.0M | $8.2M |
| Right of use assets and operating lease liabilities | -$464.0K | -$279.0K |
| Accounts payable | $1.9M | -$556.0K |
| Accrued expenses and other current liabilities | -$2.1M | -$5.0M |
| Net cash provided by (used in) operating activities | -$31.5M | -$48.0M |
| Purchases of marketable securities | -$88.2M | |
| Sales or maturities of marketable securities | $39.0M | $143.2M |
| Purchases of property and equipment and other assets | -$34.0K | |
| Sales of property and equipment and other assets | $1.2M | |
| Net cash provided by (used in) investing activities | $40.2M | $54.9M |
| Proceeds from issuance of common stock under the ATM Facility, net of offering costs | $8.7M | |
| Proceeds from the exercise of stock options | $35.0K | |
| Proceeds from the issuance of common stock under employee stock purchase plan | $23.0K | $97.0K |
| Net cash provided by (used in) financing activities | $23.0K | $8.9M |
| Net increase (decrease) in cash and cash equivalents | $8.7M | $15.9M |
| Unrealized gain (loss) on marketable securities | -$8.0K | $51.0K |
| Right of use assets recognized upon the commencement of sublease | -$422.0K | |
| Operating lease liabilities recognized upon the commencement of sublease | $422.0K |
No quarter-by-quarter statement was filed.
Corporate structure
Passage BIO, Inc. sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
Major holders of Passage BIO, Inc.
- Vestal Point Capital, LP Filed SCHEDULE 13G/A on Passage BIO, Inc., latest Aug 14, 2026 (2 filings since Nov 14, 2024)
- Lynx1 Capital Management LP Filed SCHEDULE 13D on Passage BIO, Inc., latest Jul 2, 2026 (8 filings since Sep 29, 2022)
- Baselake Partners, LP Filed SCHEDULE 13G on Passage BIO, Inc., latest Jun 25, 2026
- ORBIMED ADVISORS LLC Filed SCHEDULE 13D/A on Passage BIO, Inc., latest Jul 24, 2025 (8 filings since May 5, 2022)
- Erste Asset Management GmbH Filed SCHEDULE 13G/A on Passage BIO, Inc., latest Nov 14, 2024 (2 filings since Nov 14, 2024)
- Versant Venture Capital VI, L.P. Filed SC 13D/A on Passage BIO, Inc., latest Aug 9, 2024 (3 filings since Nov 9, 2023)
- Frazier Life Sciences IX, L.P. Filed SC 13D/A on Passage BIO, Inc., latest Jun 15, 2023 (2 filings since Aug 15, 2022)
- Deep Track Capital, LP Filed SC 13G/A on Passage BIO, Inc., latest Feb 14, 2023 (3 filings since Oct 25, 2021)
- BlackRock Filed SC 13G on Passage BIO, Inc., latest Jul 8, 2022 (2 filings since Feb 4, 2022)
- Access Industries Holdings LLC Filed SC 13G/A on Passage BIO, Inc., latest Feb 14, 2022
- LAV Prescience Ltd Filed SC 13G/A on Passage BIO, Inc., latest Feb 9, 2022
- FMR LLC Filed SC 13G/A on Passage BIO, Inc., latest Dec 10, 2021
- Passage BIO, Inc. Philadelphia, Pennsylvania
Built from major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
What it owns
What Passage BIO, 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 | $8.0M9 Dec 31, 2025 | $19.1M9 Dec 31, 2024 | −57.9% |
| Accumulated depreciation | $3.9M9 Dec 31, 2025 | $9.7M9 Dec 31, 2024 | −59.7% |
| Property and equipment, net | $4.1M9 Dec 31, 2025 | $9.3M9 Dec 31, 2024 | −56.0% |
| Operating-lease assets (leased space) | $10.2M9 Dec 31, 2025 | $13.8M9 Dec 31, 2024 | −26.3% |
Investments
| Item | Latest | A year before | Change |
|---|---|---|---|
| Cash and cash equivalents | $46.3M9 Dec 31, 2025 | $37.6M9 Dec 31, 2024 | +23.2% |
| Marketable securities, current | $09 Dec 31, 2025 | $39.2M9 Dec 31, 2024 | −100.0% |
| Debt securities available for sale | $39.2M9 Dec 31, 2024 | $92.6M8 Dec 31, 2023 | −57.7% |
Properties, in its own words
Our principal executive office is located in Philadelphia, Pennsylvania, where we lease a total of approximately 37,000 square feet of office space, or the 2005 Market Street Lease Agreement, which commenced in February 2021 and will expire in December 2031, subject to our option to extend the term of the lease by up to two additional five-year terms. In August 2023 and September 2023, we entered into two sublease agreements, for certain periods of time, which subleased substantially all of our office space under the 2005 Market Street Lease Agreement.
Our Philadelphia employee base has transitioned to remote working arrangements.
The rest of Item 2
We also lease approximately 62,000 square feet of laboratory space at the Princeton West Innovation Campus in Hopewell, New Jersey, or the Laboratory Lease Agreement. This lease has a 15-year term from the lease commencement date of March 2021. In September 2024, we entered into a sublease agreement through December 2029, which subleased approximately 3,200 square feet, or 5%, of our laboratory space under the Laboratory Lease Agreement. The subtenant has the option to extend the term of the lease by three additional years. In January 2025, we implemented a restructuring plan which included ceasing lab operations. As a result, we are no longer using any of the space covered by the Laboratory Lease Agreement and are actively pursuing opportunities to sublease all remaining space in the Laboratory Lease Agreement as well as discussing with the landlord potential alternatives.
We believe that our facilities are sufficient to meet our current needs and that suitable additional space will be available as and when needed.
Item 2 of the 10-K filed Mar 3, 2026.3
Leadership
Who has led Passage BIO, Inc., and when. Pick a name to see everywhere that person has worked.
Chief executive
President
Chief financial officer
Chief operating officer
- Chief executive officerEdgar B. Cale Jun 1, 2022 to Jun 15, 202212
- Chief executive officerWilliam Chou Oct 12, 2022 to now13
- PresidentWilliam Chou Apr 5, 2023 to now14
- Chief financial officerKathleen Borthwick Jul 28, 2023 to now15
- Chief financial officerRichard Steven Morris Feb 27, 2020 to May 21, 202116
- Chief operating officerJill M. Quigley Feb 27, 2020 to Dec 10, 202117
Board members and other officers (22)
- Chief Medical OfficerMark S. Forman Apr 8, 2022 to Mar 19, 202418
- Chief Res. & Develop OfficerEliseo Oreste Salinas Mar 29, 2021 to Feb 14, 202219
- ControllerBrian Burkavage Jun 9, 2021 to Jun 9, 202120
- Chief Commercial OfficerMonika Maria Toernsen Jul 21, 2021 to Nov 18, 202221
- Chief Technical OfficerAlexandros Fotopoulos Feb 27, 2020 to Jun 20, 202322
- GC and Corporate SecretaryEdgar B. Cale Feb 27, 2020 to now23
- Chief Medical OfficerGary Romano Feb 27, 2020 to Mar 17, 202124
- Head of Research and DevStephen P. Squinto Feb 27, 2020 to Mar 2, 202025
- Board memberThomas Richard Kassberg Oct 2, 2024 to now26
- Board memberDolan Sondhi Jul 31, 2023 to now27
- Board memberMichael E. Kamarck Jul 6, 2022 to May 26, 202328
- Board memberWilliam Chou Oct 12, 2022 to now13
- Board memberMaxine Gowen Feb 22, 2021 to now29
- Board memberDerrell Porter May 28, 2021 to now30
- Board memberAthena Countouriotis Feb 27, 2020 to now31
- Board memberLiam Ratcliffe Feb 27, 2020 to May 28, 202132
- Board memberPatrick J. Heron Feb 27, 2020 to Mar 3, 202033
- Board memberSandip Kapadia Feb 27, 2020 to now34
- Board memberSaqib Islam Feb 27, 2020 to now35
- Board memberStephen P. Squinto Feb 27, 2020 to Mar 2, 202025
- Board memberTadataka Yamada Feb 27, 2020 to May 28, 202136
- Board memberThomas Woiwode Feb 27, 2020 to May 26, 202337
Timeline
- Sep 3, 20268-K Entered a material agreement; Unregistered sale of shares38
- Jun 24, 20268-K Entered a material agreement; Ended a material agreement; Unregistered sale of shares39
- May 27, 20268-K Ended a material agreement40
- May 26, 20268-K Shareholder vote41
- Apr 28, 20268-K Exit or restructuring costs42
- Apr 20, 20268-K Regulation FD disclosure43
- Mar 10, 20268-K Ended a material agreement44
- Mar 3, 20268-K Results of operations; Regulation FD disclosure45
- Jan 12, 20268-K Results of operations; Regulation FD disclosure46
- Nov 10, 20258-K Results of operations; Regulation FD disclosure47
- Sep 18, 20258-K Executive or director change48
- Aug 12, 20258-K Results of operations; Regulation FD disclosure49
- Oct 12, 2022New chief executive William Chou becomes CEO13
- Jun 1, 2022New chief executive Edgar B. Cale becomes CEO12
Calendar
Coming up
- Nov 9, 2026Reports results for the quarter ending Sep/2026 A year earlier it reported ($2.44) a share, on Nov 10, 2025.50
When it reported results
- Mar 3, 2026Reported quarterly or annual results45
- Jan 12, 2026Reported quarterly or annual results46
- Nov 10, 2025Reported quarterly or annual results47
- Aug 12, 2025Reported quarterly or annual results49
- May 13, 2025Reported quarterly or annual results51
- Mar 4, 2025Reported quarterly or annual results52
- Jan 10, 2025Reported quarterly or annual results53
- Nov 13, 2024Reported quarterly or annual results54
Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar
Filings
294 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 69 major events, 118 insider forms, 34 large holders, 53 other. The latest 20:
- Oct 9, 2026EFFECT EDGAR
- Oct 9, 2026424B3 EDGAR
- Oct 8, 2026S-4/A EDGAR
- Oct 5, 2026S-4/A EDGAR
- Sep 21, 2026S-4/A EDGAR
- Sep 3, 2026S-4/A S-4A EDGAR
- Sep 3, 2026425 EDGAR
- Sep 3, 20268-K EDGAR
- Aug 14, 2026SCHEDULE 13G/A EDGAR
- Aug 10, 202610-Q EDGAR
- Jul 22, 2026425 EDGAR
- Jul 21, 2026S-4 EDGAR
- Jul 2, 2026SCHEDULE 13D EDGAR
- Jun 29, 20264 EDGAR
- Jun 25, 2026SCHEDULE 13G EDGAR
- Jun 24, 2026425 EDGAR
- Jun 24, 2026425 EDGAR
- Jun 24, 20268-K EDGAR
- May 27, 20268-K EDGAR
- May 26, 20268-K EDGAR
The 294 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
63 open-market trades by officers, directors and large owners since October 2021: 24 buys and 39 sales. Grants, option exercises and gifts are left out.
| Date | Who | Trade | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| Jun 25, 2026 | Nichols Weston10% owner | Buy | 50,055 | $4.12 | $206.2K | Form 4 |
| Jan 8, 2026 | Borthwick KathleenCFO | Sale | 2,062 | $18.44 | $38.0K | Form 4 |
| Jan 8, 2026 | Chou WilliamPRESIDENT AND CEO | Sale | 4,076 | $18.44 | $75.2K | Form 4 |
| Sep 15, 2025 | Nichols Weston10% owner | Buy | 11,900 | $6.99 | $83.2K | Form 4 |
| Sep 12, 2025 | Nichols Weston10% owner | Buy | 19,783 | $6.99 | $138.3K | Form 4 |
| Sep 11, 2025 | Nichols Weston10% owner | Buy | 325 | $6.96 | $2.3K | Form 4 |
| Jul 24, 2025 | Lynx1 Capital Management LP10% owner | Buy | 66,423 | $5.71 | $379.3K | Form 4 |
| Jul 23, 2025 | Lynx1 Capital Management LP10% owner | Buy | 49,302 | $5.74 | $283.0K | Form 4 |
| Jul 22, 2025 | Lynx1 Capital Management LP10% owner | Buy | 13,123 | $5.44 | $71.4K | Form 4 |
| Jun 26, 2025 | ORBIMED ADVISORS LLC10% owner | Sale | 213,257 | $0.33 | $70.4K | Form 4 |
| Jun 25, 2025 | ORBIMED ADVISORS LLC10% owner | Sale | 138,800 | $0.33 | $45.8K | Form 4 |
| Jun 24, 2025 | ORBIMED ADVISORS LLC10% owner | Sale | 231,600 | $0.35 | $81.1K | Form 4 |
| Apr 24, 2025 | ORBIMED ADVISORS LLC10% owner | Sale | 68,195 | $0.32 | $21.8K | Form 4 |
| Apr 23, 2025 | ORBIMED ADVISORS LLC10% owner | Sale | 89,328 | $0.34 | $30.4K | Form 4 |
| Apr 22, 2025 | ORBIMED ADVISORS LLC10% owner | Sale | 78,049 | $0.34 | $26.5K | Form 4 |
| Apr 17, 2025 | OrbiMed Capital GP VII LLC10% owner | Sale | 77,090 | $0.33 | $25.4K | Form 4 |
| Apr 16, 2025 | OrbiMed Capital GP VII LLC10% owner | Sale | 61,638 | $0.33 | $20.3K | Form 4 |
| Apr 15, 2025 | OrbiMed Capital GP VII LLC10% owner | Sale | 10,326 | $0.38 | $3.9K | Form 4 |
| Feb 11, 2025 | Borthwick KathleenCFO | Sale | 3,183 | $0.53 | $1.7K | Form 4 |
| Jan 14, 2025 | ORBIMED ADVISORS LLC10% owner | Sale | 79,024 | $0.60 | $47.4K | Form 4 |
All 63 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.
- Vestal Point Capital, LPSCHEDULE 13G/A, 2 filings Nov 14, 2024 to Aug 14, 202655
- Lynx1 Capital Management LPSCHEDULE 13D, 8 filings Sep 29, 2022 to Jul 2, 202656
- Baselake Partners, LPSCHEDULE 13G, 1 filing Jun 25, 202657
- ORBIMED ADVISORS LLCSCHEDULE 13D/A, 8 filings May 5, 2022 to Jul 24, 202558
- Erste Asset Management GmbHSCHEDULE 13G/A, 2 filings Nov 14, 202459
- Versant Venture Capital VI, L.P.SC 13D/A, 3 filings Nov 9, 2023 to Aug 9, 202460
- Frazier Life Sciences IX, L.P.SC 13D/A, 2 filings Aug 15, 2022 to Jun 15, 202361
- Deep Track Capital, LPSC 13G/A, 3 filings Oct 25, 2021 to Feb 14, 202362
- BlackRockSC 13G, 2 filings Feb 4, 2022 to Jul 8, 202263
- Access Industries Holdings LLCSC 13G/A, 1 filing Feb 14, 202264
- LAV Prescience LtdSC 13G/A, 1 filing Feb 9, 202265
- FMR LLCSC 13G/A, 1 filing Dec 10, 202166
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 | William ChouM.D. | 53 | $1.5M67 | |
| 2025 | Kathleen Borthwick | 50 | $851.8K67 | |
| 2025 | Edgar B. (Chip) Cale | $593.3K67 | ||
| 2024 | PresidentChief Executive Officer and Director | $1.6M67 | ||
| 2024 | General Counsel and Corporate Secretary | $881.9K67 | ||
| 2024 | Chief Financial Officer | $861.7K67 |
Held by these funds
The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 29. Change is in shares since the quarter before.
| Fund | Shares | Value | Share of the fund | Change |
|---|---|---|---|---|
| Citadel Advisors LLC | 2,886,125 | $4.3M | 0.0% | New |
| Lynx1 Capital Management LP | 673,759 | $3.3M | 0.4% | +50,055 |
| Vanguard Capital Management LLC | 113,964 | $556.1K | 0.0% | No change |
| Balyasny Asset Management L.P. | 107,025 | $522.3K | 0.0% | New |
| Ikarian Capital, LLC | 99,517 | $485.6K | 0.1% | +31,393 |
| Yiheng Capital Management, L.P. | 86,097 | $420.2K | 0.2% | No change |
| Renaissance Technologies LLC | 47,892 | $233.7K | 0.0% | −85,720 |
| Erste Asset Management GmbH | 40,665 | $197.2K | 0.0% | −44,597 |
| Geode Capital Management, LLC | 37,026 | $180.7K | 0.0% | −4,354 |
| Verdad Advisers, LP | 30,728 | $150.0K | 0.1% | +8,600 |
| Boothbay Fund Management, LLC | 28,439 | $138.8K | 0.0% | +9,568 |
| BlackRock, Inc. | 27,910 | $136.2K | 0.0% | −685 |
| Vanguard Fiduciary Trust Co | 17,049 | $83.2K | 0.0% | No change |
| Deltec Asset Management LLC | 15,000 | $73.2K | 0.0% | New |
| UBS Group AG | 13,565 | $66.2K | 0.0% | −13,936 |
| Fiduciary Trust Co | 10,750 | $52.5K | 0.0% | No change |
| Gts Securities LLC | 10,000 | $48.8K | 0.0% | New |
| Morgan Stanley | 2,389 | $11.7K | 0.0% | −261 |
| Vanguard Global Advisers, LLC | 638 | $3.1K | 0.0% | No change |
| Barclays PLC | 212 | $1.0K | 0.0% | No change |
| SBI Securities Co., Ltd. | 169 | $825 | 0.0% | +45 |
| Wells Fargo & Company/mn | 115 | $561 | 0.0% | No change |
| Acadian Asset Management LLC | 22,496 | $109 | 0.0% | −1,700 |
| Jpmorgan Chase & Co | 15 | $73 | 0.0% | No change |
| Osaic Holdings, Inc. | 15 | $73 | 0.0% | No change |
13F reports cover disclosed long positions in U.S. stocks only.
SEC filer profile
How Passage BIO, Inc. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.
- Name on EDGARPassage BIO, Inc.1
- CIK0001787297
- Employer ID (EIN)82-27297513
- Filer statusNon-accelerated filer not an emerging growth company; a smaller reporting company; not a shell company3
- Incorporated inDelaware3
- 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 addressOne Commerce Square, 2005 Market Street, 39Th Floor, Philadelphia, PA 191031
- Phone26786603121
- Shares outstanding3,217,810 as of Aug 5, 202611
- Public float$25.4M as of Jun 30, 20253
- AuditorKPMG LLP, Philadelphia, PA PCAOB ID 185; no auditor attestation of internal control over financial reporting3
- On EDGAR sinceSep 6, 20191
- Filings442 in all: 4 (163), 8-K (88), 3 (30), 10-Q (20), 144 (11), SC 13G (11), SC 13D/A (10), SC 13G/A (10)1
All 46 form types
S-8 (8), 10-K (6), CORRESP (6), DEF 14A (6), DEFA14A (6), EFFECT (5), SCHEDULE 13D/A (5), 425 (4), ARS (4), S-4/A (4), SCHEDULE 13G/A (4), SC 13D (3), SEC STAFF LETTER (3), UPLOAD (3), 4/A (2), 424B3 (2), DRS (2), POS AM (2), PRE 14A (2), S-1 (2), S-1/A (2), SCHEDULE 13G (2), 3/A (1), 424B1 (1), 424B4 (1), 424B5 (1), 8-A12B (1), CERT (1), D (1), DRS/A (1), DRSLTR (1), FWP (1), POSASR (1), S-1MEF (1), S-3 (1), S-3ASR (1), S-4 (1), SCHEDULE 13D (1)
- Latest filingsAnnual report (10-K) Mar 3, 2026
Quarterly report (10-Q) Aug 10, 2026
Proxy statement (DEF 14A) Apr 7, 2026
Latest 8-K (8-K) Sep 3, 2026
Securities registered for trading
| Class | Symbol | Exchange |
|---|---|---|
| Common stock | PASG | Nasdaq |
From the cover page of the 10-K filed Mar 3, 2026 (Section 12(b) of the Exchange Act).3
Risk factors and legal proceedings
The risks Passage BIO, Inc. names in Item 1A of its 10-K filed Mar 3, 2026: 71 risks under these headings, as written.3
- Risks Related to Our Financial Position and Need for Additional Capital
- We are a clinical stage genetic medicines company with a history of operating losses, and we may not achieve or sustain profitability. We anticipate that we will continue to incur losses for the foreseeable future. Our limited operating history may make it difficult for you to evaluate the success of our business to date and to assess our future viability.
- We have never generated revenue from product sales and may never achieve or maintain profitability.
- We will need to raise additional funding before we can expect to become profitable from any potential future sales of our products. This additional financing may not be available on acceptable terms, or at all. Failure to obtain this necessary capital when needed may force us to delay, limit, or terminate our product development efforts or other operations.
- Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights to our technologies or product candidates.
- Risks Related to Product Development and Regulatory Approval
- PBFT02 is currently our sole clinical stage product candidate and we may not be able to successfully develop and commercialize PBFT02.
- We are early in our development efforts. Our business is dependent on our ability to advance our current and future product candidates through preclinical studies and clinical trials, obtain marketing approval and ultimately commercialize them. If we are unable, or experience significant delays in doing so, our business will be materially harmed.
- Preclinical and clinical development involve lengthy and expensive processes with uncertain outcomes. We may incur additional expenses or experience delays in completing, or ultimately be unable to complete, the development and commercialization of our current product candidates or any future product candidates.
- Success in early preclinical studies or clinical trials may not be indicative of results obtained in later preclinical studies and clinical trials.
- Preliminary, topline or interim data from our clinical trials that we or our partners 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.
- If we do not achieve our projected development goals in the time-frames we announce and expect, the commercialization of our products may be delayed.
The other 61 risks
- Gene therapy is a novel technology, which makes it difficult to predict the time and cost of product candidate development and subsequently obtaining regulatory approval. Currently, only a limited number of gene therapy products have been approved in the United States and in foreign countries.
- Our product candidates may cause undesirable and unforeseen side effects, which could delay or prevent their advancement into clinical trials or regulatory approval, limit the commercial potential or result in significant negative consequences.
- Adverse public perception of genetic medicines may negatively impact regulatory approval of, and/or demand for, our potential products.
- As an organization, we have limited experience designing and implementing clinical trials and we have never conducted pivotal clinical trials. Failure to adequately design a trial, or incorrect assumptions about the design of the trial, could adversely affect the ability to initiate the trial, enroll patients, complete the trial, or obtain regulatory approval on the basis of the trial results, as well as lead to increased or unexpected costs.
- Certain disorders we seek to treat have low incidence and prevalence, and it may be difficult to identify patients with these disorders, which may lead to delays in enrollment for our trials or slower commercial revenue if approved.
- Even if we complete the necessary clinical trials, we cannot predict when, or if, we will receive regulatory approval to commercialize a product candidate and the approval may be for a more narrow indication than we seek.
- The FDA and ex-U.S. regulatory agencies have demonstrated caution in their regulation of gene therapy treatments. Ethical and legal concerns about gene therapy and genetic testing may result in additional regulations or restrictions on the development and commercialization of our product candidates, which may be difficult to predict.
- Failure to obtain marketing approval in foreign jurisdictions would prevent our product candidates from being marketed abroad and will limit our ability to realize their full market potential.
- We may not be successful in our efforts to build a pipeline of additional product candidates.
- Risks Related to Our Reliance on Third Parties
- We currently rely on our collaboration with Gemma for many aspects of our preclinical research and development programs, including for discovering, preclinically developing and conducting IND-enabling studies for our preclinical product candidates and our near-term future pipeline of product candidates. Failure or delay of Gemma to fulfill all or part of its obligations to us under the agreement, a breakdown in collaboration between the parties or a complete or partial loss of this relationship could materially harm our business.
- We rely on third parties to conduct our preclinical studies and clinical trials and rely on them to perform other tasks for us. If these third parties do not successfully carry out their contractual duties, meet expected deadlines or comply with regulatory requirements, we may not be able to obtain regulatory approval for or commercialize our product candidates and our business could be substantially harmed.
- We rely on third parties to conduct our clinical trials. If those third parties do not perform as contractually required, fail to satisfy legal or regulatory requirements, miss expected deadlines or terminate the relationship, our development program could be delayed with potentially material and adverse effects on our business, financial condition, results of operations and prospects.
- We have outlicensed our lysosomal pediatric products to Gemma, a genetic medicines company, and we may in the future enter into collaborations with other third parties for the discovery, development and commercialization of our product candidates. If any of our current or future collaborators cease development efforts under our collaboration agreements, or if any of those agreements are terminated, these collaborations may fail to lead to commercial products and we may never receive milestone payments or future royalties under these agreements.
- We may not be successful in finding additional collaborators for continuing development of certain of our product candidates or successfully commercializing or competing in the market for certain indications.
- We may have conflicts with our collaborators that could delay or prevent the development or commercialization of our product candidates.
- We may in the future seek to engage in strategic transactions to acquire or in-license new products, product candidates or technologies. If we are unable to successfully complete, or realize the benefits from, such transactions it may adversely affect our ability to develop and commercialize product candidates, impact our cash position, increase our expenses and present significant distractions to our management.
- Risks Related to Manufacturing
- Gene therapies are novel, complex and difficult to manufacture. We could experience manufacturing problems that result in delays in our development or commercialization programs or otherwise harm our business.
- Changes in methods of product candidate manufacturing or formulation may result in additional costs or delay.
- Our third-party manufacturers and suppliers use biological materials and may use hazardous materials, and any claims relating to improper handling, storage or disposal of these materials could be time-consuming or costly.
- Any contamination in our third parties’ manufacturing process, shortages of raw materials, labor or reagents or failure of any of our key suppliers to deliver necessary components of our platform could result in delays in our clinical development or marketing schedules.
- We depend on third-party suppliers for materials used in the manufacture of our product candidates, and the loss of these third-party suppliers or their inability to supply us with adequate materials could harm our business.
- Risks Related to Commercialization
- We face significant competition in an environment of rapid technological change and the possibility that our competitors may achieve regulatory approval before us or develop therapies or technologies that are more advanced or effective than ours, which may harm our business and financial condition, and our ability to successfully market or commercialize our product candidates.
- The commercial success of any of our product candidates will depend upon its degree of market acceptance by physicians, patients, third-party payors and others in the medical community.
- If in the future we are unable to establish U.S. or global sales and marketing capabilities or enter into agreements with third parties to sell and market our product candidates, we may not be successful in commercializing our product candidates if they are approved and we may not be able to generate any revenue.
- We may expend our limited resources to pursue a particular product candidate or indication and fail to capitalize on product candidates or indications that may be more profitable or for which there is a greater likelihood of success.
- Risks Related to Intellectual Property
- If we are unable to obtain and maintain patent protection or other necessary rights for our products and technology, or if the scope of the patent protection obtained is not sufficiently broad or our rights under licensed patents is not sufficiently broad, our competitors could develop and commercialize products and technology similar or identical to ours, and our ability to successfully commercialize our products and technology may be adversely affected.
- All of our current product candidates and research programs, including PBFT02, are licensed from or based upon licenses from a third -party and are field limited to certain indications. If the license agreements are terminated or interpreted to narrow our rights, our ability to advance our current product candidates or develop new product candidates based on these technologies will be materially adversely affected.
- If we breach our license agreements it could have a material adverse effect on our commercialization efforts for our product candidates.
- Our strategy of obtaining rights to key technologies through in-licenses may not be successful.
- Third parties may initiate legal proceedings alleging claims of intellectual property infringement, the outcome of which would be uncertain and could have a material adverse effect on the success of our business.
- If we are unable to protect the confidentiality of our trade secrets, our business and competitive position may be harmed.
- Obtaining and maintaining 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 not be able to protect our intellectual property rights throughout the world.
- We may become involved in lawsuits to protect or enforce our patents or other intellectual property, which could be expensive, time-consuming and unsuccessful.
- Changes in patent law in the United States and in ex-U.S. jurisdictions could diminish the value of patents in general, thereby impairing our ability to protect our product candidates.
- We may be subject to claims asserting that our employees, consultants, advisors or collaborators have wrongfully used or disclosed alleged trade secrets of their current or former employers or claims asserting ownership of or other rights to what we regard as our own or licensed intellectual property.
- 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 for any product candidates we may develop, our business may be materially harmed.
- Some of the intellectual property rights that we have in-licensed were generated through the use of U.S. government funding and are therefore 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 ex-U.S. manufacturers.
- Risks Related to Government Regulation
- The pricing, insurance coverage and reimbursement status of newly approved products is uncertain. Failure to obtain or maintain adequate coverage and reimbursement for our product candidates, if approved, could limit our ability to market those products and decrease our ability to generate product revenue.
- Fast Track Designation by the FDA may not lead to a faster development or regulatory review or approval process.
- If we decide to seek Orphan Drug Designation for some of our product candidates, we may be unsuccessful or may be unable to maintain the benefits associated with Orphan Drug Designation, including the potential for supplemental market exclusivity.
- If we decide to pursue accelerated approval for any of our product candidates, it may not lead to a faster development or regulatory review or approval process and does not increase the likelihood that our product candidates will receive marketing approval.
- Any product candidate for which we obtain marketing approval will be subject to extensive post-marketing regulatory requirements and could be subject to post-marketing restrictions or withdrawal from the market, and we may be subject to penalties if we fail to comply with regulatory requirements or if we experience unanticipated problems with our product candidates, when and if any of them are approved.
- Our product candidates for which we intend to seek approval may face competition from biosimilars approved through an abbreviated regulatory pathway.
- Enacted and future legislation may affect pricing and third-party payment for our product candidates, may increase the difficulty and cost for us to obtain marketing approval of and commercialize our product candidates and may affect the prices we may set. The full effect of recent United States healthcare reform and other changes in the healthcare industry, laws, and regulations and in healthcare spending is currently unknown, and the reform and other changes may adversely affect our business model.
- Our operations and relationships with customers and third-party payors will be subject to applicable anti-kickback, fraud and abuse and other healthcare laws and regulations, which could expose us to penalties including criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings.
- Risks Related to Employee Matters, Managing Growth and Other Risks Related to Our Business
- Our future success depends on our ability to retain key executives and to attract, retain and motivate qualified personnel.
- We may be required to expand our manufacturing, development and regulatory capabilities in the future, and as a result, we may encounter difficulties in managing our growth, which could disrupt our operations.
- Our internal computer systems, or those of our third-party collaborators or other contractors, may fail or suffer security breaches and cyber-attacks, which could result in a material disruption of our development programs.
- Our ability to utilize our net operating loss carryforwards may be subject to limitation.
- U.S. federal income tax reform and changes in other tax laws could adversely affect us.
- Our employees, principal investigators, CROs and consultants may engage in misconduct or other improper activities, including non-compliance with regulatory standards and requirements and insider trading.
- Product liability lawsuits against us could cause us to incur substantial liabilities and could limit commercialization of any product candidates that we may develop.
- We are subject to U.S. and certain foreign export and import controls, sanctions, embargoes, anti-corruption laws, and anti-money laundering laws and regulations. Compliance with these legal standards could impair our ability to compete in domestic and international markets. We can face criminal liability and other serious consequences for violations that can harm our business.
- Risks Related to Our Common Stock
- The price of our common stock may be volatile and fluctuate substantially, which could result in substantial losses for holders of our common stock.
- Because we do not anticipate paying any cash dividends on our common stock in the foreseeable future, capital appreciation, if any, will be your sole source of gain.
- If we fail to establish and maintain proper and effective internal control over financial reporting in the future, our ability to produce accurate and timely financial statements could be impaired, which could harm our operating results, investors’ views of us and, as a result, the value of our common stock.
- We will continue to incur increased costs as a result of operating as a public company and our management will continue to be required to devote substantial time to new compliance initiatives.
- The exclusive forum provisions in our restated certificate of incorporation and amended and restated bylaws may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or any of our directors, officers, or other employees, which may discourage lawsuits with respect to such claims.
- Provisions in our corporate charter documents and under Delaware law could make an acquisition of us, which may be beneficial to our stockholders, more difficult and may prevent attempts by our stockholders to replace or remove our current management.
Legal proceedings
From time to time, we may be involved in legal proceedings arising in the ordinary course of our business.
The opening of Item 3, Legal Proceedings.3
Sources
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- 14SEC EDGARWilliam Chou, President
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- 20SEC EDGARBrian Burkavage, Controller
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- 24SEC EDGARGary Romano, Chief Medical Officer
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- 27SEC EDGARDolan Sondhi, Board member
- 28SEC EDGARMichael E. Kamarck, Board member
- 29SEC EDGARMaxine Gowen, Board member
- 30SEC EDGARDerrell Porter, Board member
- 31SEC EDGARAthena Countouriotis, Board member
- 32SEC EDGARLiam Ratcliffe, Board member
- 33SEC EDGARPatrick J. Heron, Board member
- 34SEC EDGARSandip Kapadia, Board member
- 35SEC EDGARSaqib Islam, Board member
- 36SEC EDGARTadataka Yamada, Board member
- 37SEC EDGARThomas Woiwode, Board member
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- 40SEC EDGAREnded a material agreement
- 41SEC EDGARShareholder vote
- 42SEC EDGARExit or restructuring costs
- 43SEC EDGARRegulation FD disclosure
- 44SEC EDGAREnded a material agreement
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- 48SEC EDGARExecutive or director change
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- 50NasdaqNasdaq calendar
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