Sarah Aebersold
CIK 1837756 · Chief Human Resources Officer · last filed 2026-03-23
"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.
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Disclosed Exposure
$3.37M
Companies
1
Total Filings
66
Lifetime Open-Market Net
-$1.22M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BLFS | Chief Human Resources Officer | 92,429 | $36.47 | $3.37M | -$1.22M | 61 | 2026-03-23 |
Recent Filings · Page 6 of 7
66 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-03-03 | BLFS | Sell (S) | −1,022 | -$23.3K | EDGAR |
| 2023-02-13 | BLFS | Sell (S) | −55 | -$1.4K | EDGAR |
| 2023-01-20 | BLFS | Sell (S) | −374 | -$8.6K | EDGAR |
| 2023-01-10 | BLFS | Grant (A) | +12,450 | $0 | EDGAR |
| 2022-11-14 | BLFS | Sell (S) | −38 | -$880 | EDGAR |
| 2022-10-31 | BLFS | Sell (S) | −272 | -$5.9K | EDGAR |
| 2022-08-11 | BLFS | Sell (S) | −40 | -$927 | EDGAR |
| 2022-07-26 | BLFS | Sell (S) | −252 | -$4.5K | EDGAR |
| 2022-05-17 | BLFS | Sell (S) | −40 | -$493 | EDGAR |
| 2022-04-22 | BLFS | Sell (S) | −325 | -$4.5K | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
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.
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.