WaveMan · Form 4
Column Group Iii-A, LP insider trades
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Column Group Iii-A, LP insider trades

Column Group Iii-A, LP has filed 7 Form 4s with the SEC that we hold, for Tenaya Therapeutics, Inc. (TNYA) (10% owner), NGM (Director, 10% owner) and Surrozen, Inc./DE (SRZN) (10% owner). Across all of them we count 9 purchases worth $17.8M and 8 sales worth $3.5M reported on Form 4. In the last 12 months: 0 purchases ($0) and 8 sales ($3.5M). The largest single trade was a purchase of 2,222,222 shares of Tenaya Therapeutics, Inc. worth $10.0M, dated 2024-02-12. The first filing on our record is dated 2022-05-26 and the latest 2026-02-24.

Tenaya Therapeutics, Inc. (TNYA)

10% owner · 4 filings · 10 purchases and sales
Trade dateCodeSharesValue as filedFiled
2023-02-08P, purchase reported on Form 41,500,000$3.9M2023-02-10
2024-02-12P, purchase reported on Form 42,222,222$10.0M2024-02-14
2026-02-10S, sale reported on Form 4161,422$132.4K2026-02-12
2026-02-10S, sale reported on Form 4182,295$149.5K2026-02-12
2026-02-11S, sale reported on Form 42,151,458$1.5M2026-02-12
2026-02-11S, sale reported on Form 41,905,115$1.3M2026-02-12
2026-02-20S, sale reported on Form 4277,769$169.4K2026-02-24
2026-02-20S, sale reported on Form 4245,965$150.0K2026-02-24
2026-02-23S, sale reported on Form 4162,291$97.4K2026-02-24
2026-02-23S, sale reported on Form 4143,709$86.2K2026-02-24

NGM

Director, 10% owner · 2 filings · 5 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-05-24P, purchase reported on Form 4588$7.9K2022-05-26
2022-05-24P, purchase reported on Form 417,240$230.5K2022-05-26
2022-05-25P, purchase reported on Form 41,429$19.2K2022-05-26
2022-05-25P, purchase reported on Form 441,863$562.2K2022-05-26
2023-01-23P, purchase reported on Form 49,900$49.5K2023-01-25

Surrozen, Inc./DE (SRZN)

10% owner · 1 filing · 2 purchases and sales
Trade dateCodeSharesValue as filedFiled
2024-04-04P, purchase reported on Form 490,897$1.4M2024-04-17
2024-04-04P, purchase reported on Form 4102,651$1.6M2024-04-17
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1668085) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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