Wichterman Troy Insider Trading -- Recent SEC Form 4 Transactions
Wichterman Troy (CIK 1892616) reported 25 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-10-08). Recent activity: Buy BLFS (76,204 shares), Buy BLFS (62,300 shares), Sell BLFS (95,933 shares), Sell BLFS (256,000 shares), Sell BLFS (937 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-08 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Buy | 76,204 | $0 |
| 2026-10-08 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Buy | 62,300 | $0 |
| 2026-10-08 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 95,933 | $3.7M |
| 2026-10-08 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 256,000 | $0 |
| 2026-09-22 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 937 | $34,379 |
| 2026-09-10 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 1,026 | $36,300 |
| 2026-07-13 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 844 | $23,455 |
| 2026-06-22 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 937 | $24,399 |
| 2026-06-10 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 1,026 | $26,779 |
| 2026-04-10 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 844 | $16,264 |
| 2026-03-23 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 3,749 | $71,681 |
| 2026-03-05 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 588 | $12,195 |
| 2026-02-26 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Buy | 31,150 | $0 |
| 2026-02-26 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Buy | 64,866 | $0 |
| 2026-02-26 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 25,525 | $578,141 |
| 2026-01-08 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 990 | $25,334 |
| 2025-12-17 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 1,033 | $25,959 |
| 2025-12-05 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 30,000 | $771,600 |
| 2025-11-28 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 584 | $15,616 |
| 2025-10-14 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 833 | $22,791 |
| 2025-09-15 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 1,032 | $27,689 |
| 2025-08-28 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 590 | $15,010 |
| 2025-07-09 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 877 | $19,531 |
| 2025-06-12 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 1,042 | $24,695 |
| 2025-05-30 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | Sell | 583 | $13,094 |
Source: SEC Form 4 filings · as of 2026-10-08