Aby J. Mathew
CIK 1556355 · EVP & Chief Scientific Officer · last filed 2026-07-13
"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
$14.17M
Companies
1
Total Filings
140
Lifetime Open-Market Net
-$20.87M
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 | EVP & Chief Scientific Officer | 388,460 | $36.47 | $14.17M | -$20.87M | 139 | 2026-07-13 |
Recent Filings · Page 14 of 14
140 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 |
|---|---|---|---|---|---|
| 2019-02-27 | BLFS | Grant (A) | +16,598 | $0 | EDGAR |
| 2018-03-09 | BLFS | Grant (A) | — | $0 | EDGAR |
| 2018-01-17 | BLFS | Exer (M) | +14,284 | $9.0K | EDGAR |
| 2018-01-03 | BLFS | Grant (A) | +15,208 | $0 | EDGAR |
| 2017-06-14 | BLFS | Exer (M) | +24,285 | $34.0K | EDGAR |
| 2017-02-09 | BLFS | Exer (M) | +35,714 | $40.0K | EDGAR |
| 2016-09-01 | BLFS | Exer (M) | +7,142 | $7.0K | EDGAR |
| 2016-03-17 | BLFS | Grant (A) | +25,000 | $0 | EDGAR |
| 2015-05-06 | BLFS | Grant (A) | — | $0 | EDGAR |
| 2015-03-26 | BLFS | Exer (M) | +2,143 | $2.4K | EDGAR |
Showing 131–140 of 140
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Page 14 of 14
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.