Timothy A Springer insider trades: Tectonic Therapeutic (TECX) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Timothy reports to the SEC
Open-market buys and sales
44 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 11, 2025 | TECX | ↑ Buy | 120,635 | $16.20 | $2.0M | By LLC | Apr 11, 2025 (0d) |
| Apr 11, 2025 | RNAC | ↑ Buy | 126,715 | $10.21 | $1.3M | Indirect | Apr 11, 2025 (0d) |
| Apr 11, 2025 | TECX | ↑ Buy | 21,288 | $16.20 | $345K | Direct | Apr 11, 2025 (0d) |
| Apr 11, 2025 | RNAC | ↑ Buy | 22,360 | $10.21 | $228K | Direct | Apr 11, 2025 (0d) |
| Apr 7, 2025 | TECX | ↑ Buy | 412,500 | $17.10 | $7.1M | By LLC | Apr 9, 2025 (2d) |
| Apr 7, 2025 | TECX | ↑ Buy | 87,500 | $17.10 | $1.5M | Direct | Apr 9, 2025 (2d) |
| Mar 20, 2025 | RNAC | ↑ Buy | 89,863 | $15.26 | $1.4M | Direct | Mar 20, 2025 (0d) |
| Feb 5, 2025 | TECX | ↑ Buy | 660,000 | $50.00 | $33.0M | By LLC | Feb 7, 2025 (2d) |
| Feb 5, 2025 | TECX | ↑ Buy | 129,294 | $54.14 | $7.0M | Direct | Feb 7, 2025 (2d) |
| Jan 14, 2025 | RNAC | ↑ Buy | 20,967 | $17.47 | $366K | Direct | Jan 15, 2025 (1d) |
| Dec 23, 2024 | RNAC | ↑ Buy | 52,189 | $18.49 | $965K | Direct | Dec 23, 2024 (0d) |
| Nov 18, 2024 | RNAC | ↑ Buy | 431,940 | $17.07 | $7.4M | Direct | Nov 18, 2024 (0d) |
| Oct 22, 2024 | TECX | ↑ Buy | 300,000 | $33.59 | $10.1M | Direct | Oct 24, 2024 (2d) |
| Oct 4, 2024 | RNAC | ↑ Buy | 205,721 | $20.87 | $4.3M | Direct | Oct 4, 2024 (0d) |
| Sep 26, 2024 | TECX | ↑ Buy | 50,000 | $28.82 | $1.4M | Direct | Sep 26, 2024 (0d) |
| Aug 12, 2024 | RNAC | ↑ Buy | 8,016 | $12.72 | $102K | By wife | Aug 14, 2024 (2d) |
| Mar 18, 2024 | RNAC | ↑ Buy | 18,400 | $0.62 | $11K | By wife | Mar 28, 2024 (10d) |
| Mar 18, 2024 | RNAC | ↑ Buy | 19,044 | $0.60 | $11K | Indirect | Mar 20, 2024 (2d) |
| Mar 15, 2024 | RNAC | ↑ Buy | 1,185,872 | $0.56 | $666K | Indirect | Mar 18, 2024 (3d) |
| May 3, 2023 | MORF | ↑ Buy | 1,050,000 | $45.00 | $47.3M | By TAS Partners LLC | May 4, 2023 (1d) |
| Dec 15, 2021 | SELB | ↑ Buy | 211,190 | $2.99 | $631K | Indirect | Dec 17, 2021 (2d) |
| Dec 13, 2021 | SELB | ↑ Buy | 3,821,273 | $3.06 | $11.7M | Indirect | Dec 13, 2021 (0d) |
| Aug 20, 2021 | MORF | ↑ Buy | 74,927 | $56.23 | $4.2M | By TAS Partners LLC | Aug 20, 2021 (0d) |
| May 26, 2021 | SELB | ↑ Buy | 1,900,000 | $3.72 | $7.1M | Indirect | May 26, 2021 (0d) |
| May 26, 2021 | MORF | ↑ Buy | 130,000 | $46.28 | $6.0M | By TAS Partners LLC | May 26, 2021 (0d) |
| May 21, 2021 | MORF | ↑ Buy | 232,295 | $45.50 | $10.6M | By TAS Partners LLC | May 25, 2021 (4d) |
| May 21, 2021 | SELB | ↑ Buy | 2,773,479 | $3.19 | $8.8M | Indirect | May 25, 2021 (4d) |
| Mar 5, 2021 | MORF | ↑ Buy | 100,000 | $70.00 | $7.0M | By TAS Partners LLC | Mar 8, 2021 (3d) |
| Oct 23, 2020 | SELB | ↑ Buy | 3,644,692 | $2.62 | $9.6M | Indirect | Oct 23, 2020 (0d) |
| Oct 20, 2020 | SELB | ↑ Buy | 1,887,696 | $2.30 | $4.3M | Indirect | Oct 20, 2020 (0d) |
| Oct 9, 2020 | SELB | ↑ Buy | 276,703 | $2.00 | $552K | Indirect | Oct 14, 2020 (5d) |
| Oct 8, 2020 | SELB | ↑ Buy | 3,185,394 | $1.71 | $5.4M | Indirect | Oct 8, 2020 (0d) |
| Aug 14, 2019 | SELB | ↑ Buy | 10,000 | $1.74 | $17K | By wife | Aug 16, 2019 (2d) |
| Jul 1, 2019 | MORF | ↑ Buy | 33,333 | $15.00 | $500K | By TAS Partners LLC | Jul 1, 2019 (0d) |
| Jan 25, 2019 | SELB | ↑ Buy | 4,000,000 | $1.50 | $6.0M | Direct | Mar 29, 2019 (63d) |
| Jan 25, 2019 | SELB | ↑ Buy | 71,418 | $2.00 | $143K | By wife | Mar 29, 2019 (63d) |
| May 29, 2018 | SRRK | ↑ Buy | 71,428 | $14.00 | $1000K | Direct | May 31, 2018 (2d) |
| Nov 14, 2017 | SELB | ↑ Buy | 57,598 | $9.27 | $534K | Direct | Nov 16, 2017 (2d) |
| Nov 10, 2017 | SELB | ↑ Buy | 48,338 | $9.18 | $444K | Direct | Nov 13, 2017 (3d) |
| Nov 9, 2017 | SELB | ↑ Buy | 5,000 | $9.34 | $47K | By wife | Nov 13, 2017 (4d) |
| Jun 27, 2017 | SELB | ↑ Buy | 338,791 | $17.71 | $6.0M | Direct | Jun 28, 2017 (1d) |
| Jun 1, 2017 | SELB | ↑ Buy | 518 | $13.75 | $7K | Direct | Jun 2, 2017 (1d) |
| May 18, 2017 | SELB | ↑ Buy | 16,104 | $14.00 | $226K | Direct | May 19, 2017 (1d) |
| Jun 27, 2016 | SELB | ↑ Buy | 710,000 | $14.00 | $9.9M | Indirect | Jun 29, 2016 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other TECX insiders
Open-market trades in the last 12 months
About Timothy A Springer's insider trades
Timothy A Springer is an insider at Tectonic Therapeutic (TECX). Since Jun 27, 2016, Timothy has reported 44 open-market purchases worth $227.1M and no sales on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (26 filings), other transactions (8 filings), option exercises (3 filings), conversions (3 filings). 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 TECX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.