Sean Werner
CIK 2047541 · Chief Technology Officer · last filed 2026-07-21
Sean Werner is a Chief Technology Officer who has filed 14 SEC Form 4 insider transactions across 1 company since 2025. The most recent filing shows the insider had shares withheld for taxes covering $8.0K of BLFS on Jul 21, 2026. Across all open-market trades the lifetime net is −$50.9K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.7M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$1.73M
1
14
-$50.9K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BLFS | Chief Technology Officer | 47,556 | $36.47 | $1.73M | -$50.9K | 14 | 2026-07-21 |
Recent Filings
14 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-21 | BLFS | Tax (F) | −275 | -$8.0K | EDGAR |
| 2026-06-22 | BLFS | Tax (F) | −420 | -$10.9K | EDGAR |
| 2026-03-23 | BLFS | Tax (F) | −1,681 | -$32.1K | EDGAR |
| 2026-03-05 | BLFS | Sell (S) | −111 | -$2.3K | EDGAR |
| 2026-02-26 | BLFS | Grant (A) | +24,116 | $0 | EDGAR |
| 2025-11-28 | BLFS | Sell (S) | −110 | -$2.9K | EDGAR |
| 2025-10-22 | BLFS | Sell (S) | −275 | -$7.7K | EDGAR |
| 2025-09-15 | BLFS | Sell (S) | −72 | -$1.9K | EDGAR |
| 2025-08-28 | BLFS | Sell (S) | −111 | -$2.8K | EDGAR |
| 2025-07-22 | BLFS | Sell (S) | −1,115 | -$23.7K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.