Frost Mark T — SEC Form 4 filings
SEC reporting owner CIK 1310262. 5 Form 4 filings on record with FilingPulse; latest filed 2026-04-01.
Transaction summary — filings shown
Covers all 5 filings on record, filed 2024-02-27 to 2026-04-01. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 5,000 shares, $25,000 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 4.
- Largest priced transaction: purchase of 5,000 shares @ $5.00 ($25,000) in HARVARD BIOSCIENCE INC, filed 2026-04-01.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| HARVARD BIOSCIENCE INC (HBIO) | Chief Financial Officer | 3 | 1 leg · 5,000 sh · $25,000 | — | 2 |
| Fathom Digital Manufacturing Corp (FATH) | Chief Financial Officer, Director | 2 | — | — | 2 |
Form 4 filings — Frost Mark T
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-04-01 | 4 | HARVARD BIOSCIENCE INC (HBIO) | Purchase (P): 5,000 @ $5 | EDGAR |
| 2026-04-01 | 4 | HARVARD BIOSCIENCE INC (HBIO) | Grant/award (A): 30,000 @ $0 | EDGAR |
| 2025-05-14 | 4 | HARVARD BIOSCIENCE INC (HBIO) | Grant/award (A): 100,000 @ $0 | EDGAR |
| 2024-04-22 | 4 | Fathom Digital Manufacturing Corp (FATH) | Tax withholding (F): 1,369 @ $4.52 | EDGAR |
| 2024-02-27 | 4 | Fathom Digital Manufacturing Corp (FATH) | Tax withholding (F): 197 @ $4.35 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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