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 13 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 |
|---|---|---|---|---|---|
| 2020-08-28 | BLFS | Sell (S) | −255 | -$5.2K | EDGAR |
| 2020-08-13 | BLFS | Sell (S) | −15,000 | -$298.7K | EDGAR |
| 2020-07-17 | BLFS | Sell (S) | −10,000 | -$194.8K | EDGAR |
| 2020-06-01 | BLFS | Sell (S) | −242 | -$4.1K | EDGAR |
| 2020-05-15 | BLFS | Mixed | — | -$122.3K | EDGAR |
| 2020-05-13 | BLFS | Mixed | — | -$247.0K | EDGAR |
| 2020-03-27 | BLFS | Grant (A) | +33,595 | $0 | EDGAR |
| 2020-03-26 | BLFS | Sell (S) | −10,000 | -$92.5K | EDGAR |
| 2020-02-28 | BLFS | Sell (S) | −1,024 | -$15.4K | EDGAR |
| 2020-02-05 | BLFS | Mixed | +7,966 | -$364.7K | 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.