Mark T Frost
CIK 1310262 · Chief Financial Officer · last filed 2026-04-01
"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
$288.8K
Companies
6
Total Filings
35
Lifetime Open-Market Net
$71.2K
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 |
|---|---|---|---|---|---|---|---|
| HBIO | Chief Financial Officer | 47,500 | $6.08 | $288.8K | $25.0K | 3 | 2026-04-01 |
| Fathom Digital Manufacturing Corp (FATH) Delisted | Chief Financial Officer | 35,351 | $5.05 | $178.5K | $0 | 2 | 2024-04-22 |
| Fathom Digital Manufacturing Corp (FATH.WS) Delisted | Chief Financial Officer | 738,352 | $0.01 | $3.8K | -$6.8K | 7 | 2023-05-11 |
| ANALOGIC CORP (ALOG) Delisted | SVP, CFO & Treasurer | 1,442 | — | — | $0 | 4 | 2016-12-14 |
| ANGIODYNAMICS INC (ANGO.V) Delisted | EVP and CFO | 38,389 | — | — | $0 | 9 | 2015-08-07 |
| ALBANY MOLECULAR RESEARCH INC (AMRI) Delisted | Chief Financial Officer | 62,933 | — | — | $53.0K | 10 | 2012-09-14 |
Recent Filings · Page 2 of 4
35 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-04-18 | Fathom Digital Manufacturing Corp (FATH.WS) Delisted | Tax (F) | −44,009 | -$326.1K | EDGAR |
| 2022-03-01 | Fathom Digital Manufacturing Corp (FATH.WS) Delisted | Grant (A) | +33,746 | $0 | EDGAR |
| 2016-12-14 | ANALOGIC CORP (ALOG) Delisted | Tax (F) | −695 | -$63.2K | EDGAR |
| 2016-12-07 | ANALOGIC CORP (ALOG) Delisted | Mixed | +1,571 | -$51.5K | EDGAR |
| 2016-09-19 | ANALOGIC CORP (ALOG) Delisted | Grant (A) | — | $0 | EDGAR |
| 2015-12-07 | ANALOGIC CORP (ALOG) Delisted | Grant (A) | — | $0 | EDGAR |
| 2015-08-07 | ANGIODYNAMICS INC (ANGO.V) Delisted | Tax (F) | −797 | -$12.7K | EDGAR |
| 2015-07-29 | ANGIODYNAMICS INC (ANGO.V) Delisted | Tax (F) | −696 | -$10.9K | EDGAR |
| 2015-07-24 | ANGIODYNAMICS INC (ANGO.V) Delisted | Grant (A) | +5,969 | $0 | EDGAR |
| 2014-12-02 | ANGIODYNAMICS INC (ANGO.V) Delisted | Tax (F) | −1,856 | -$32.4K | EDGAR |
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.