Aebersold Sarah
Officer · BLFS
As of 2026-09-16, Aebersold Sarah has 30 Form 4 transactions on record across 1 company — 10 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 $3.3M
- Indirect $0
| BLFS | direct | 92,429 sh | $3.3M |
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 | 219 @ $20.74 | $5K | −0.2% of holding | 93,360 | Form 4 |
| 2026-01-06 | BLFS | Sale | 241 @ $25.59 | $6K | −0.3% of holding | 75,765 | Form 4 |
| 2025-12-15 | BLFS | Sale | 713 @ $24.46 | $17K | −0.9% of holding | 76,006 | Form 4 |
| 2025-12-09 | BLFS | Sale | 233 @ $25.13 | $6K | −0.3% of holding | 76,719 | Form 4 |
| 2025-11-25 | BLFS | Sale | 217 @ $26.74 | $6K | −0.3% of holding | 76,952 | Form 4 |
| 2025-10-09 | BLFS | Sale | 188 @ $27.36 | $5K | −0.2% of holding | 77,169 | Form 4 |
| 2025-09-15 | BLFS | Sale | 714 @ $25.61 | $18K | −0.9% of holding | 77,357 | Form 4 |
| 2025-09-11 | BLFS | Sale | 233 @ $26.83 | $6K | −0.3% of holding | 78,071 | Form 4 |
| 2025-08-26 | BLFS | Sale | 219 @ $25.44 | $6K | −0.3% of holding | 78,304 | Form 4 |
| 2025-07-07 | BLFS | Sale | 198 @ $22.27 | $4K | −0.3% of holding | 78,523 | Form 4 |
| 2025-06-16 | BLFS | Sale | 711 @ $22.23 | $16K | −0.9% of holding | 78,721 | Form 4 |
| 2025-06-10 | BLFS | Sale | 235 @ $23.70 | $6K | −0.3% of holding | 79,432 | Form 4 |
| 2025-05-28 | BLFS | Sale | 217 @ $22.46 | $5K | −0.3% of holding | 79,667 | Form 4 |
| 2025-04-09 | BLFS | Sale | 210 @ $20.11 | $4K | −0.3% of holding | 79,884 | Form 4 |
| 2025-04-01 | BLFS | Sale | 5,771 @ $22.66 | $131K | −6.7% of holding | 80,094 | Form 4 |
| 2025-03-17 | BLFS | Sale | 2,695 @ $25.44 | $69K | −5.9% of holding | 43,165 | Form 4 |
| 2025-03-14 | BLFS | Sale | 5,632 @ $24.96 | $141K | −10.9% of holding | 45,860 | Form 4 |
| 2025-03-12 | BLFS | Sale | 7,324 @ $26.34 | $193K | −12.5% of holding | 51,492 | Form 4 |
| 2025-03-11 | BLFS | Sale | 1,091 @ $25.00 | $27K | −1.8% of holding | 58,816 | Form 4 |
| 2025-03-03 | BLFS | Sale | 284 @ $25.46 | $7K | −0.5% of holding | 59,907 | Form 4 |
| 2025-02-12 | BLFS | Sale | 53 @ $26.54 | $1K | −0.1% of holding | 60,191 | Form 4 |
| 2025-01-06 | BLFS | Sale | 240 @ $27.02 | $6K | −0.4% of holding | 60,244 | Form 4 |
8 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-03-19 | BLFS | Withheld for tax | 931 | 92,429 | Form 4 |
| 2026-02-24 | BLFS | Withheld for tax | 5,734 | 93,579 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 23,548 | 99,313 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 23,548 | 99,313 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 15,279 | 64,076 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 15,279 | 64,076 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 21,789 | 85,865 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 21,789 | 85,865 | 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.