Welcome to our dedicated page for Surrozen SEC filings (Ticker: SRZN), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Surrozen filings document a biotechnology issuer focused on Wnt signaling and antibody technologies for ophthalmic disease. Recent Form 8-K reports disclose operating results, financial condition, pipeline business updates for SZN-8141 and related retinal disease programs, and collaboration and license revenue tied to research milestones.
The company's regulatory reports also record governance and compensation matters, including board and executive changes and inducement equity arrangements, along with material-agreement disclosures such as the termination of the TCGFB collaboration for antibody discovery services. Cover-page data and exhibits identify Surrozen common stock and redeemable warrants as part of the public-company capital structure.
Stonepine Capital Management, Stonepine Capital, Stonepine GP and Jon M. Plexico filed an amended Schedule 13G reporting beneficial ownership of 316,289 shares of Surrozen, Inc. common stock, representing 3.6% of the class as of the reported date.
The stake consists of 113,631 shares of common stock plus 202,658 shares issuable upon exercise of Series A, Series B and Series E warrants, all subject to a 9.9% beneficial ownership limitation. The percentage is based on 8,571,421 shares outstanding as of November 5, 2025, and the filers certify the holdings are not for the purpose of changing or influencing control.
TCG Crossover investment entities increased their indirect stake in Surrozen, Inc. common stock through open-market purchases. On February 11, 2026, TCG Crossover Fund II, L.P. and TCG Crossover Fund III, L.P. each bought 8,882 and 8,881 shares at $23.575 per share, respectively. On February 12, 2026, they bought additional blocks of 547 and 546 shares at $23.8625 per share. After these transactions, one fund reported beneficial ownership of 651,114 shares and the other 651,112 shares, all held indirectly through the TCG Crossover fund structure.
Surrozen, Inc. (SRZN) received an amended Schedule 13G from several Millennium-related investment entities reporting significant passive ownership of its common stock as of 12/31/2025. Integrated Core Strategies (US) LLC reports beneficial ownership of 718,724 shares, representing 8.4% of the outstanding common stock.
Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander each report beneficial ownership of 726,193 shares, or 8.5% of the class, with shared voting and dispositive power and no sole voting or dispositive power. The filing states these securities are held through entities over which Millennium Management LLC and related managers exercise voting control and investment discretion.
The reporting persons certify the securities were not acquired and are not held for the purpose of changing or influencing control of Surrozen, and the filing is made under the passive ownership framework of Schedule 13G.
TCG Crossover investment entities reported open-market purchases of Surrozen, Inc. (SRZN) common stock. On January 30, 2026, TCG Crossover Fund II, L.P. bought 2,136 shares at $21.39 and TCG Crossover Fund III, L.P. bought 2,135 shares at $21.39, both indirectly held.
On February 2, 2026, Fund II purchased 366 shares at $21.38 and Fund III purchased 365 shares at $21.38. On February 3, 2026, Fund II bought 2,178 shares at $21.94, bringing its reported indirect holdings to 641,685 shares, while Fund III bought 2,177 shares at $21.94, bringing its reported indirect holdings to 641,682 shares.
TCG Crossover funds and Chen Yu report significant ownership in Surrozen, Inc. common stock. TCG Crossover Fund II, L.P. and TCG Crossover Fund III, L.P., through their general partners, each report beneficial ownership of 637,005 shares, or 5.7% of Surrozen’s common stock.
Chen Yu, as sole managing member of both general partners, reports beneficial ownership of 1,274,010 shares, representing 11.4% of the outstanding common stock based on 11,191,978 shares outstanding as of January 27, 2026. The filing states the securities were not acquired or held for the purpose of changing or influencing control of Surrozen.
Surrozen, Inc. reported that board member Shao-Lee Lin, M.D., Ph.D. resigned from its Board of Directors, effective immediately on January 26, 2026. The company stated that Dr. Lin’s resignation was not due to any disagreement regarding Surrozen’s operations, policies, or practices. Surrozen expressed appreciation for her service and dedication to the company’s mission.
Surrozen, Inc. (SRZN) received an initial ownership report showing that investment entities affiliated with TCG Crossover hold significant stakes in its common stock. TCG Crossover Fund II, L.P. and TCG Crossover Fund III, L.P., together with their general partners, each report indirect beneficial ownership of 637,005 shares of Surrozen common stock as of 01/26/2026. The funds hold the shares of record, while their general partners and Chen Yu, as sole managing member of each general partner, may be deemed to share voting, investment, and dispositive power over the reported securities.
Surrozen, Inc. reported that its Chief Operating Officer, Charles O. Williams, received an employee stock option grant. On 01/23/2026, he was awarded options to purchase 500 shares of Surrozen common stock at an exercise price of $19.595 per share. These options expire on 01/22/2036 if not exercised.
The 500 options vest over four years in 48 equal monthly installments starting from the grant date, and are held directly by the executive. After this grant, he beneficially owns 500 derivative securities linked to Surrozen common stock.
Surrozen, Inc. received an amended Schedule 13D from venture capital firm The Column Group and related entities detailing their ownership of the company’s common stock. The filing shows that funds affiliated with The Column Group, together with managing partners Tim Kutzkey and Peter Svennilson, beneficially own 3,824,612 shares, or 35.1% of Surrozen’s common stock based on 10,885,617 shares outstanding.
The Column Group III GP, LP is reported as beneficially owning 2,962,544 shares, representing 28.6% of the class, while The Column Group III, LP and The Column Group III-A, LP report stakes of 14.2% and 15.9%, respectively. The Column Group Opportunity III–branded entities each report beneficial ownership of 862,068 shares, or 8.8% of the class.
The amendment also records a series of open-market purchases by TCG III LP and TCG III-A LP between November 13, 2025 and January 20, 2026 at prices ranging from $12.65 to $20.00 per share. Certain additional warrants are excluded from beneficial ownership because they are not exercisable within 60 days of the statement.
Surrozen, Inc. (SRZN) reported insider buying by investment funds affiliated with The Column Group. Multiple Column Group limited partnerships, each a 10% owner, disclosed open‑market purchases of Surrozen common stock on January 15, 16 and 20, 2026.
Examples include The Column Group III, LP buying 5,590 shares at $19.889 and 8,484 shares at $19.5999, and The Column Group III-A, LP buying 6,303 shares at $19.889 and 9,568 shares at $19.5999. Following these purchases, The Column Group III, LP reported beneficial ownership of 900,292 shares, The Column Group III-A, LP reported 1,016,658 shares, and The Column Group Opportunity III, LP reported holding 344,827 shares.
The filing notes that general partners and managing partners associated with these funds may be deemed to share voting and investment power but disclaim beneficial ownership except to the extent of their pecuniary interest.