BOB ROSENTHAL
CIK 1203911 · Executive Chairman · last filed 2026-02-18
"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
$17.42M
Companies
5
Total Filings
60
Lifetime Open-Market Net
-$280.8K
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 |
|---|---|---|---|---|---|---|---|
| BRKRP | Director | 38,781 | $401.31 | $15.56M | $0 | 1 | 2026-02-18 |
| BRKR | Director | 34,261 | $54.23 | $1.86M | -$295.7K | 12 | 2025-02-19 |
| INVIVO THERAPEUTICS HOLDINGS CORP. (NVIV) Delisted | Director | — | $0.32 | — | $0 | 2 | 2022-11-21 |
| SAFEGUARD SCIENTIFICS INC (SFE) Delisted | Director | 81,855 | $0.46 | $37.2K | $15.0K | 43 | 2022-04-18 |
| MZT Holdings, Inc. (MZT) Delisted | Director | — | — | — | $0 | 2 | 2007-06-12 |
Recent Filings · Page 3 of 6
60 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2020-04-16 | SAFEGUARD SCIENTIFICS INC (SFE) Delisted | Grant (A) | +5,212 | $28.4K | EDGAR |
| 2020-01-23 | SAFEGUARD SCIENTIFICS INC (SFE) Delisted | Grant (A) | +2,525 | $27.5K | EDGAR |
| 2020-01-13 | SAFEGUARD SCIENTIFICS INC (SFE) Delisted | Mixed | — | $0 | EDGAR |
| 2020-01-07 | BRKR | Grant (A) | +2,472 | $0 | EDGAR |
| 2019-07-01 | SAFEGUARD SCIENTIFICS INC (SFE) Delisted | Grant (A) | +6,095 | $0 | EDGAR |
| 2019-01-10 | BRKR | Grant (A) | +4,134 | $0 | EDGAR |
| 2018-08-01 | SAFEGUARD SCIENTIFICS INC (SFE) Delisted | Grant (A) | +6,066 | $0 | EDGAR |
| 2018-05-10 | SAFEGUARD SCIENTIFICS INC (SFE) Delisted | Mixed | +421 | -$4 | EDGAR |
| 2018-01-09 | BRKR | Grant (A) | +3,474 | $0 | EDGAR |
| 2017-08-09 | SAFEGUARD SCIENTIFICS INC (SFE) Delisted | Mixed | +359 | -$12 | 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.