Casdin Partners GP, LLC insider trades: Biolife Solutions (BLFS) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Casdin Partners GP, LLC reports to the SEC
and 2 more companies
Open-market buys and sales
51 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 21, 2026 | BLFS | ↓ Sell | 1,200,000 | $23.44 | $28.1M | Indirect | May 21, 2026 (0d) |
| May 20, 2026 | WGS | ↑ Buy | 500,000 | $42.92 | $21.5M | Indirect | May 20, 2026 (0d) |
| Dec 4, 2025 | LAB | ↑ Buy | 350,000 | $1.44 | $503K | Indirect | Dec 4, 2025 (0d) |
| Nov 25, 2025 | LAB | ↑ Buy | 7,700,000 | $1.31 | $10.1M | Indirect | Nov 26, 2025 (1d) |
| Nov 20, 2025 | LAB | ↑ Buy | 1,075,000 | $1.28 | $1.4M | Indirect | Nov 20, 2025 (0d) |
| Nov 17, 2025 | LAB | ↑ Buy | 925,000 | $1.22 | $1.1M | Indirect | Nov 17, 2025 (0d) |
| Nov 12, 2025 | LAB | ↑ Buy | 1,175,000 | $1.17 | $1.4M | Indirect | Nov 12, 2025 (0d) |
| Oct 15, 2025 | BLFS | ↓ Sell | 750,000 | $28.55 | $21.4M | Footonote | Oct 17, 2025 (2d) |
| Sep 9, 2025 | LAB | ↑ Buy | 100,000 | $1.29 | $129K | Indirect | Sep 11, 2025 (2d) |
| Sep 4, 2025 | LAB | ↑ Buy | 500,000 | $1.27 | $636K | Indirect | Sep 5, 2025 (1d) |
| Aug 26, 2025 | LAB | ↑ Buy | 525,000 | $1.25 | $659K | Indirect | Aug 26, 2025 (0d) |
| Aug 22, 2025 | WGS | ↓ Sell | 500,000 | $120.90 | $60.5M | Indirect | Aug 22, 2025 (0d) |
| Aug 15, 2025 | BLFS | ↓ Sell | 500,000 | $24.40 | $12.2M | Indirect | Aug 21, 2025 (6d) |
| Aug 15, 2025 | LAB | ↑ Buy | 358,220 | $1.24 | $443K | Indirect | Aug 15, 2025 (0d) |
| Aug 11, 2025 | BLFS | ↓ Sell | 500,000 | $22.60 | $11.3M | Indirect | Aug 13, 2025 (2d) |
| Jun 10, 2025 | BLFS | ↓ Sell | 1,000,000 | $23.80 | $23.8M | Indirect | Jun 12, 2025 (2d) |
| Feb 28, 2025 | LAB | ↑ Buy | 4,820,959 | $1.06 | $5.1M | Indirect | Mar 4, 2025 (4d) |
| Aug 27, 2024 | LAB | ↑ Buy | 250,000 | $2.19 | $547K | Indirect | Aug 29, 2024 (2d) |
| Aug 26, 2024 | LAB | ↑ Buy | 750,000 | $2.06 | $1.5M | Indirect | Aug 26, 2024 (0d) |
| Aug 21, 2024 | LAB | ↑ Buy | 1,250,000 | $1.88 | $2.4M | Indirect | Aug 21, 2024 (0d) |
| Aug 14, 2024 | LAB | ↑ Buy | 1,200,000 | $1.59 | $1.9M | Indirect | Aug 16, 2024 (2d) |
| Aug 13, 2024 | LAB | ↑ Buy | 1,575,408 | $1.62 | $2.6M | Indirect | Aug 13, 2024 (0d) |
| Aug 8, 2024 | LAB | ↑ Buy | 1,069,562 | $1.61 | $1.7M | Indirect | Aug 9, 2024 (1d) |
| Aug 5, 2024 | LAB | ↑ Buy | 1,200,000 | $1.62 | $1.9M | Indirect | Aug 6, 2024 (1d) |
| Jun 4, 2024 | WGS | ↑ Buy | 130,000 | $21.21 | $2.8M | Direct | Jun 5, 2024 (1d) |
| May 29, 2024 | WGS | ↑ Buy | 40,000 | $21.07 | $843K | Direct | May 31, 2024 (2d) |
| May 28, 2024 | WGS | ↑ Buy | 170,000 | $20.15 | $3.4M | Direct | May 28, 2024 (0d) |
| May 23, 2024 | LAB | ↑ Buy | 100,000 | $2.60 | $260K | Indirect | May 28, 2024 (5d) |
| May 22, 2024 | LAB | ↑ Buy | 600,000 | $2.57 | $1.5M | Indirect | May 22, 2024 (0d) |
| May 17, 2024 | LAB | ↑ Buy | 1,352,072 | $2.56 | $3.5M | Indirect | May 17, 2024 (0d) |
| May 13, 2024 | WGS | ↑ Buy | 50,000 | $23.31 | $1.2M | Direct | May 15, 2024 (2d) |
| Mar 26, 2024 | TSVT | ↑ Buy | 40,000 | $5.10 | $204K | Indirect | Mar 28, 2024 (2d) |
| Mar 25, 2024 | TSVT | ↑ Buy | 777,377 | $5.02 | $3.9M | Indirect | Mar 25, 2024 (0d) |
| Mar 5, 2024 | LAB | ↑ Buy | 251,403 | $2.57 | $646K | Direct | Mar 6, 2024 (1d) |
| Mar 5, 2024 | WGS | ↑ Buy | 40,900 | $8.74 | $358K | Direct | Mar 6, 2024 (1d) |
| Oct 19, 2023 | BLFS | ↑ Buy | 927,165 | $11.19 | $10.4M | Direct | Oct 23, 2023 (4d) |
| Aug 9, 2023 | BLFS | ↑ Buy | 58,465 | $13.20 | $772K | Direct | Aug 11, 2023 (2d) |
| May 22, 2023 | BLFS | ↑ Buy | 74,973 | $22.32 | $1.7M | Indirect | May 23, 2023 (1d) |
| May 19, 2023 | LAB | ↑ Buy | 1,200,000 | $2.19 | $2.6M | Indirect | May 19, 2023 (0d) |
| May 18, 2023 | BLFS | ↑ Buy | 75,027 | $21.26 | $1.6M | Indirect | May 18, 2023 (0d) |
| Oct 3, 2022 | MXCT | ↓ Sell | 735,786 | $6.15 | $4.5M | Direct | Oct 5, 2022 (2d) |
| Jul 1, 2022 | MXCT | ↓ Sell | 3,235,548 | $4.30 | $13.9M | Direct | Jul 6, 2022 (5d) |
| Jul 30, 2021 | MXCT | ↑ Buy | 1,800,000 | $13.00 | $23.4M | Direct | Aug 3, 2021 (4d) |
| Jul 26, 2021 | ABSI | ↑ Buy | 1,562,500 | $16.00 | $25.0M | Direct | Jul 28, 2021 (2d) |
| Nov 24, 2020 | BLFS | ↑ Buy | 1,600,000 | $22.50 | $36.0M | Direct | Nov 27, 2020 (3d) |
| Jul 2, 2020 | BLFS | ↑ Buy | 990,583 | $14.50 | $14.4M | Direct | Jul 2, 2020 (0d) |
| May 22, 2020 | BLFS | ↑ Buy | 476,191 | $10.50 | $5.0M | Direct | May 26, 2020 (4d) |
| May 14, 2020 | BLFS | ↑ Buy | 1,904,762 | $10.50 | $20.0M | Direct | May 18, 2020 (4d) |
| Nov 20, 2019 | BLFS | ↑ Buy | 40,000 | $15.41 | $617K | Direct | Nov 21, 2019 (1d) |
| Jul 22, 2019 | FULC | ↑ Buy | 140,000 | $15.84 | $2.2M | Indirect | Jul 22, 2019 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other BLFS insiders
Open-market trades in the last 12 months
About Casdin Partners GP, LLC's insider trades
Casdin Partners GP, LLC is a 10% owner of Biolife Solutions (BLFS). Since Jul 23, 2018, it has reported 43 open-market purchases worth $221.7M and 8 sales worth $175.7M on SEC Form 4. In the last 12 months: 6 buys ($35.9M) and 1 sale ($28.1M).
Its filings also include other transactions (9 filings), grants and awards (5 filings), conversions (3 filings), shares returned to the company (2 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 BLFS insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.