BLFS
insider transactionsBIOLIFE SOLUTIONS INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 90d
-1.2M
0 buy · 1.2M sell
Net value · 90d
-$28.1M
$0 in · $28.1M out
Sentiment · 90d
Net selling
0% buying · 100% selling
Open-market trades · 90d
3
0 buy · 1.2M sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Other·F
Troy Wichterman KEY
Chief Financial Officer
$26.8K
1.0K sh · $26.10
Own -0%
-
Other·F
Chief Marketing Officer
$9.3K
356 sh · $26.10
Own -0%
-
Other·F
EVP & Chief Scientific Officer
$16.4K
627 sh · $26.10
Own -0%
-
Sell·S
Casdin Partners Master Fund, L.P. / Casdin Capital, LLC / Casdin Partners GP, LLC / Eli Casdin
10% Owner
$15.4M
650.0K sh · $23.70
Own -12%
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Sell·S
Casdin Partners Master Fund, L.P. / Casdin Capital, LLC / Casdin Partners GP, LLC / Eli Casdin
10% Owner
$5.9M
250.0K sh · $23.70
Own -4%
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Sell·S
Casdin Partners Master Fund, L.P. / Casdin Capital, LLC / Casdin Partners GP, LLC / Eli Casdin
10% Owner
$6.8M
300.0K sh · $22.65
Own -5%
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Other·F
EVP & Chief Scientific Officer
$9.9K
515 sh · $19.27
Own -0%
-
Other·F
Chief Marketing Officer
$5.6K
293 sh · $19.27
Own -0%
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Other·F
Troy Wichterman KEY
Chief Financial Officer
$16.3K
844 sh · $19.27
Own -0%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 8, 2026 | Troy Wichterman KEY | Other F | 1.0K | $26.8K |
| Jun 8, 2026 | Todd Berard | Other F | 356 | $9.3K |
| Jun 8, 2026 | Aby J. Mathew | Other F | 627 | $16.4K |
| May 21, 2026 | Casdin Partners Master Fund, L.P. / Casdin Capital, LLC / Casdin Partners GP, LLC / Eli Casdin | Sell S | 650.0K | $15.4M |
| May 20, 2026 | Casdin Partners Master Fund, L.P. / Casdin Capital, LLC / Casdin Partners GP, LLC / Eli Casdin | Sell S | 250.0K | $5.9M |
| May 19, 2026 | Casdin Partners Master Fund, L.P. / Casdin Capital, LLC / Casdin Partners GP, LLC / Eli Casdin | Sell S | 300.0K | $6.8M |
| Apr 8, 2026 | Aby J. Mathew | Other F | 515 | $9.9K |
| Apr 8, 2026 | Todd Berard | Other F | 293 | $5.6K |
| Apr 8, 2026 | Troy Wichterman KEY | Other F | 844 | $16.3K |
About BLFS insider trading
This page tracks insider transactions for BIOLIFE SOLUTIONS INC (BLFS) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.