Wichterman Troy — SEC Form 4 filings
SEC reporting owner CIK 1892616. 36 Form 4 filings on record with FilingPulse; latest filed 2026-09-10.
Transaction summary — filings shown
Covers all 36 filings on record, filed 2024-01-23 to 2026-09-10. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 31 legs across 28 filings — 86,222 shares, $2,009,940 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 13.
- Largest priced transaction: sale of 30,000 shares @ $25.72 ($771,600) in BIOLIFE SOLUTIONS INC, filed 2025-12-05.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| BIOLIFE SOLUTIONS INC (BLFS) | Chief Financial Officer | 36 | — | 31 legs · 86,222 sh · $2,009,940 | 13 |
Form 4 filings — Wichterman Troy
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-10 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Tax withholding (F): 1,026 @ $35.38 | EDGAR |
| 2026-07-13 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Tax withholding (F): 844 @ $27.79 | EDGAR |
| 2026-06-22 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Tax withholding (F): 937 @ $26.04 | EDGAR |
| 2026-06-10 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Tax withholding (F): 1,026 @ $26.10 | EDGAR |
| 2026-04-10 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Tax withholding (F): 844 @ $19.27 | EDGAR |
| 2026-03-23 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Tax withholding (F): 3,749 @ $19.12 | EDGAR |
| 2026-03-05 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 588 @ $20.74 | EDGAR |
| 2026-02-26 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Grant/award (A): 31,150 · Grant/award (A): 64,866 · Tax withholding (F): 25,525 @ $22.65 | EDGAR |
| 2026-01-08 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 990 @ $25.59 | EDGAR |
| 2025-12-17 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 1,033 @ $25.13 | EDGAR |
| 2025-12-05 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 30,000 @ $25.72 | EDGAR |
| 2025-11-28 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 584 @ $26.74 | EDGAR |
| 2025-10-14 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 833 @ $27.36 | EDGAR |
| 2025-09-15 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 1,032 @ $26.83 | EDGAR |
| 2025-08-28 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 590 @ $25.44 | EDGAR |
| 2025-07-09 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 877 @ $22.27 | EDGAR |
| 2025-06-12 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 1,042 @ $23.70 | EDGAR |
| 2025-05-30 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 583 @ $22.46 | EDGAR |
| 2025-04-11 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 932 @ $20.11 | EDGAR |
| 2025-04-03 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 25,687 @ $22.66 | EDGAR |
| 2025-03-20 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Grant/award (A): 38,102 · Grant/award (A): 60,018 | EDGAR |
| 2025-03-13 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 4,151 @ $25 | EDGAR |
| 2025-03-05 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 660 @ $25.46 | EDGAR |
| 2025-02-14 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 159 @ $26.54 | EDGAR |
| 2025-01-08 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 987 @ $27.02 | EDGAR |
| 2024-11-29 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 581 @ $27.20 | EDGAR |
| 2024-11-14 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 147 @ $26.19 | EDGAR |
| 2024-11-01 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 894 @ $23.15 | EDGAR |
| 2024-09-18 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 828 @ $20.54 · Sale (S): 142 @ $25.61 · Sale (S): 611 @ $25.12 | EDGAR |
| 2024-05-31 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 574 @ $21.78 | EDGAR |
| 2024-05-21 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 115 @ $22.18 | EDGAR |
| 2024-04-23 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 956 @ $15.31 | EDGAR |
| 2024-03-25 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 520 @ $17.83 | EDGAR |
| 2024-03-12 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Grant/award (A): 41,715 · Grant/award (A): 29,206 · Sale (S): 361 @ $17.42 · Sale (S): 7,249 @ $16.60 | EDGAR |
| 2024-02-23 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 97 @ $17.35 | EDGAR |
| 2024-01-23 | 4 | BIOLIFE SOLUTIONS INC (BLFS) | Sale (S): 2,419 @ $16.76 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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