Column Group Iii-A, LP insider trades: Tenaya Therapeutics (TNYA) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Column Group Iii-A, LP reports to the SEC
Open-market buys and sales
73 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Feb 25, 2026 | TNYA | ↓ Sell | 4,170,266 | $0.57 | $2.4M | Indirect | Feb 26, 2026 (1d) |
| Feb 23, 2026 | TNYA | ↓ Sell | 829,734 | $0.61 | $505K | Indirect | Feb 24, 2026 (1d) |
| Feb 11, 2026 | TNYA | ↓ Sell | 4,400,290 | $0.69 | $3.0M | Indirect | Feb 12, 2026 (1d) |
| Jan 20, 2026 | SRZN | ↑ Buy | 17,229 | $19.74 | $340K | By The Column Group III-A, LP | Jan 20, 2026 (0d) |
| Jan 20, 2026 | SRZN | ↑ Buy | 15,278 | $19.74 | $302K | By The Column Group III, LP | Jan 20, 2026 (0d) |
| Jan 14, 2026 | SRZN | ↑ Buy | 9,536 | $19.86 | $189K | By The Column Group III-A, LP | Jan 15, 2026 (1d) |
| Jan 14, 2026 | SRZN | ↑ Buy | 8,457 | $19.86 | $168K | By The Column Group III, LP | Jan 15, 2026 (1d) |
| Jan 6, 2026 | SRZN | ↑ Buy | 8,003 | $19.89 | $159K | By The Column Group III-A, LP | Jan 8, 2026 (2d) |
| Jan 6, 2026 | SRZN | ↑ Buy | 7,097 | $19.89 | $141K | By The Column Group III, LP | Jan 8, 2026 (2d) |
| Dec 5, 2025 | SRZN | ↑ Buy | 19,172 | $19.22 | $369K | By The Column Group III-A, LP | Dec 8, 2025 (3d) |
| Dec 5, 2025 | SRZN | ↑ Buy | 16,978 | $19.22 | $326K | By The Column Group III, LP | Dec 8, 2025 (3d) |
| Nov 13, 2025 | SRZN | ↑ Buy | 167,307 | $12.65 | $2.1M | By The Column Group III-A, LP | Nov 17, 2025 (4d) |
| Nov 13, 2025 | SRZN | ↑ Buy | 148,150 | $12.65 | $1.9M | By The Column Group III, LP | Nov 17, 2025 (4d) |
| Mar 26, 2025 | SRZN | ↑ Buy | 365,769 | $11.60 | $4.2M | By The Column Group III-A, LP | Mar 28, 2025 (2d) |
| Mar 26, 2025 | SRZN | ↑ Buy | 344,827 | $11.60 | $4.0M | By The Column Group Opportunity III, LP | Mar 28, 2025 (2d) |
| Mar 26, 2025 | SRZN | ↑ Buy | 323,886 | $11.60 | $3.8M | By The Column Group III, LP | Mar 28, 2025 (2d) |
| Mar 5, 2025 | TNYA | ↑ Buy | 35,714,284 | $0.70 | $25.0M | Indirect | Mar 7, 2025 (2d) |
| Apr 4, 2024 | SRZN | ↑ Buy | 102,651 | $15.50 | $1.6M | By The Column Group III-A, LP | Apr 8, 2024 (4d) |
| Apr 4, 2024 | SRZN | ↑ Buy | 90,897 | $15.50 | $1.4M | By The Column Group III, LP | Apr 8, 2024 (4d) |
| Feb 12, 2024 | TNYA | ↑ Buy | 2,222,222 | $4.50 | $10.0M | Indirect | Feb 14, 2024 (2d) |
| Nov 16, 2023 | NGM | ↑ Buy | 22,631 | $0.69 | $16K | Indirect | Nov 17, 2023 (1d) |
| Mar 10, 2023 | TNYA | ↑ Buy | 6,779 | $2.60 | $18K | Indirect | Mar 14, 2023 (4d) |
| Feb 8, 2023 | TNYA | ↑ Buy | 1,500,000 | $2.60 | $3.9M | Indirect | Feb 10, 2023 (2d) |
| Jan 31, 2023 | NGM | ↑ Buy | 184,272 | $5.00 | $921K | Indirect | Feb 1, 2023 (1d) |
| Jan 23, 2023 | NGM | ↑ Buy | 9,900 | $5.00 | $49K | Indirect | Jan 25, 2023 (2d) |
| Jan 20, 2023 | NGM | ↑ Buy | 38,139 | $5.00 | $191K | Indirect | Jan 23, 2023 (3d) |
| Jan 19, 2023 | TNYA | ↑ Buy | 69,739 | $2.50 | $174K | Indirect | Jan 23, 2023 (4d) |
| Jan 18, 2023 | TNYA | ↑ Buy | 185,151 | $2.51 | $465K | Indirect | Jan 19, 2023 (1d) |
| Jan 12, 2023 | NGM | ↑ Buy | 5,378 | $4.95 | $27K | Indirect | Jan 17, 2023 (5d) |
| Jan 11, 2023 | NGM | ↑ Buy | 309,070 | $4.79 | $1.5M | Indirect | Jan 12, 2023 (1d) |
| Dec 12, 2022 | NGM | ↑ Buy | 300 | $4.98 | $1K | Indirect | Dec 14, 2022 (2d) |
| Nov 22, 2022 | NGM | ↑ Buy | 40,327 | $5.00 | $202K | Indirect | Nov 23, 2022 (1d) |
| Nov 21, 2022 | TNYA | ↑ Buy | 9,615,384 | $2.60 | $25.0M | Indirect | Nov 23, 2022 (2d) |
| Nov 4, 2022 | NGM | ↑ Buy | 139,148 | $4.92 | $684K | Indirect | Nov 7, 2022 (3d) |
| Oct 27, 2022 | NGM | ↑ Buy | 76,877 | $4.86 | $374K | Indirect | Oct 31, 2022 (4d) |
| Oct 26, 2022 | NGM | ↑ Buy | 123,820 | $4.81 | $595K | Indirect | Oct 27, 2022 (1d) |
| Jun 9, 2022 | NGM | ↑ Buy | 984,161 | $13.50 | $13.3M | Indirect | Jun 13, 2022 (4d) |
| Jun 2, 2022 | NGM | ↑ Buy | 34,200 | $13.03 | $446K | Indirect | Jun 6, 2022 (4d) |
| Jun 1, 2022 | NGM | ↑ Buy | 153,806 | $13.46 | $2.1M | Indirect | Jun 2, 2022 (1d) |
| May 27, 2022 | NGM | ↑ Buy | 22,911 | $13.49 | $309K | Indirect | May 31, 2022 (4d) |
| May 25, 2022 | NGM | ↑ Buy | 61,120 | $13.42 | $820K | Indirect | May 26, 2022 (1d) |
| May 20, 2022 | NGM | ↑ Buy | 39,700 | $13.36 | $530K | Indirect | May 23, 2022 (3d) |
| May 18, 2022 | NGM | ↑ Buy | 151,699 | $13.33 | $2.0M | Indirect | May 19, 2022 (1d) |
| May 16, 2022 | NGM | ↑ Buy | 33,166 | $12.90 | $428K | Indirect | May 17, 2022 (1d) |
| May 12, 2022 | NGM | ↑ Buy | 166,350 | $11.43 | $1.9M | Indirect | May 13, 2022 (1d) |
| May 10, 2022 | NGM | ↑ Buy | 114,440 | $10.95 | $1.3M | Indirect | May 11, 2022 (1d) |
| Feb 17, 2021 | CNST | ↓ Sell | 10,000 | $36.95 | $370K | Indirect | Feb 19, 2021 (2d) |
| Nov 16, 2020 | RVMD | ↓ Sell | 1,075,133 | $36.40 | $39.1M | Indirect | Nov 18, 2020 (2d) |
| Nov 16, 2020 | RVMD | ↓ Sell | 952,023 | $36.40 | $34.7M | Direct | Nov 18, 2020 (2d) |
| Sep 2, 2020 | NGM | ↑ Buy | 64,089 | $17.65 | $1.1M | Direct | Sep 3, 2020 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other TNYA insiders
Open-market trades in the last 12 months
About Column Group Iii-A, LP's insider trades
Column Group Iii-A, LP is an insider at Tenaya Therapeutics (TNYA). Since Oct 11, 2019, it has reported 67 open-market purchases worth $139.0M and 6 sales worth $80.1M on SEC Form 4. In the last 12 months: 10 buys ($6.0M) and 3 sales ($5.9M).
Its filings also include other transactions (5 filings), option exercises (3 filings), conversions (2 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every TNYA insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.