Wichterman Troy
Officer · BLFS
As of 2026-09-16, Wichterman Troy has 32 Form 4 transactions on record across 1 company — 17 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $7.7M
- Indirect $0
| BLFS | direct | 212,223 sh | $7.7M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-03-03 | BLFS | Sale | 588 @ $20.74 | $12K | −0.3% of holding | 220,649 | Form 4 |
| 2026-01-06 | BLFS | Sale | 990 @ $25.59 | $25K | −0.7% of holding | 150,746 | Form 4 |
| 2025-12-09 | BLFS | Sale | 1,033 @ $25.13 | $26K | −0.7% of holding | 151,736 | Form 4 |
| 2025-12-04 | BLFS | Sale | 30,000 @ $25.72 | $772K | −16.4% of holding | 152,769 | Form 4 |
| 2025-11-25 | BLFS | Sale | 584 @ $26.74 | $16K | −0.3% of holding | 182,769 | Form 4 |
| 2025-10-09 | BLFS | Sale | 833 @ $27.36 | $23K | −0.5% of holding | 183,353 | Form 4 |
| 2025-09-11 | BLFS | Sale | 1,032 @ $26.83 | $28K | −0.6% of holding | 184,186 | Form 4 |
| 2025-08-26 | BLFS | Sale | 590 @ $25.44 | $15K | −0.3% of holding | 185,218 | Form 4 |
| 2025-07-07 | BLFS | Sale | 877 @ $22.27 | $20K | −0.5% of holding | 185,808 | Form 4 |
| 2025-06-10 | BLFS | Sale | 1,042 @ $23.70 | $25K | −0.6% of holding | 186,685 | Form 4 |
| 2025-05-28 | BLFS | Sale | 583 @ $22.46 | $13K | −0.3% of holding | 187,727 | Form 4 |
| 2025-04-09 | BLFS | Sale | 932 @ $20.11 | $19K | −0.5% of holding | 188,310 | Form 4 |
| 2025-04-01 | BLFS | Sale | 25,687 @ $22.66 | $582K | −12.0% of holding | 189,242 | Form 4 |
| 2025-03-11 | BLFS | Sale | 4,151 @ $25.00 | $104K | −3.4% of holding | 116,809 | Form 4 |
| 2025-03-03 | BLFS | Sale | 660 @ $25.46 | $17K | −0.5% of holding | 120,960 | Form 4 |
| 2025-02-12 | BLFS | Sale | 159 @ $26.54 | $4K | −0.1% of holding | 121,620 | Form 4 |
| 2025-01-06 | BLFS | Sale | 987 @ $27.02 | $27K | −0.8% of holding | 121,779 | Form 4 |
15 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-09-08 | BLFS | Withheld for tax | 1,026 | 212,223 | Form 4 |
| 2026-07-07 | BLFS | Withheld for tax | 844 | 213,249 | Form 4 |
| 2026-06-18 | BLFS | Withheld for tax | 937 | 214,093 | Form 4 |
| 2026-06-08 | BLFS | Withheld for tax | 1,026 | 215,030 | Form 4 |
| 2026-04-08 | BLFS | Withheld for tax | 844 | 216,056 | Form 4 |
| 2026-03-19 | BLFS | Withheld for tax | 3,749 | 216,900 | Form 4 |
| 2026-02-24 | BLFS | Withheld for tax | 25,525 | 221,237 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 31,150 | 181,896 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 64,866 | 246,762 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 31,150 | 181,896 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 64,866 | 246,762 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 38,102 | 154,911 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 60,018 | 214,929 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 60,018 | 214,929 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 38,102 | 154,911 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.