Form 4: Column Group Increases Surrozen Stake by $4 Million

The Column Group, a 10% owner and director, acquired over 315,000 shares of Surrozen, Inc. common stock for approximately $4 million.

Summary

• COLUMN GROUP III GP, LP, a 10% owner and director of Surrozen, Inc. (SRZN), reported the acquisition of common stock.
• On November 13, 2025, The Column Group III, LP acquired 148,150 shares of common stock at a price of $12.65 per share.
• On the same date, The Column Group III-A, LP acquired 167,307 shares of common stock at a price of $12.65 per share.
• The total number of shares acquired across these two transactions is 315,457.
• The total value of the acquired shares is approximately $3,991,031.05.
• Following these transactions, The Column Group III, LP beneficially owns 852,482 shares, The Column Group III-A, LP beneficially owns 962,718 shares, and The Column Group Opportunity III, LP beneficially owns 344,827 shares.
• The transactions were made pursuant to a Rule 10b5-1(c) plan.

Sentiment

Score: 8

Explanation: The significant purchase of common stock by a 10% owner and director, totaling nearly $4 million, indicates strong insider confidence and a positive outlook for the company's future performance.

Positives

• A significant investment of approximately $4 million by a 10% owner and director signals strong insider confidence in Surrozen, Inc.'s future prospects.
• The purchase was executed at a price of $12.65 per share, indicating a specific valuation point at which the insider found the stock attractive.

Future Outlook

This filing does not contain forward-looking statements or guidance from the company.

Industry Context

Insider buying, especially by significant shareholders and directors, is often viewed by the market as a positive signal, suggesting that those with intimate knowledge of the company believe its stock is undervalued or poised for future growth. This transaction indicates continued commitment from a key institutional investor in the biotechnology or pharmaceutical sector, where Surrozen operates.

Corporate Governance

Related Party Transactions

• The reporting person, COLUMN GROUP III GP, LP, is identified as both a Director and a 10% Owner of Surrozen, Inc., making these stock acquisitions related party transactions.

Stakeholder Impact

• Shareholders may view this significant insider purchase as a positive indicator of future stock performance and management's belief in the company's value.
• Increased institutional ownership by The Column Group reinforces confidence in the company's strategic direction and long-term potential.

Key Dates

Recommendation

The substantial insider purchase by a 10% owner and director, totaling nearly $4 million, signals strong conviction in Surrozen's valuation and future prospects. Such a significant investment by those with deep knowledge of the company often precedes positive developments or reflects a belief that the stock is currently undervalued, making it an attractive 'buy' signal for seasoned investors.

Keywords

Surrozen, SRZN, Insider Buying, Form 4, Stock Purchase, Column Group, Beneficial Ownership, Rule 10b5-1