Witney Frank — SEC Form 4 filings
SEC reporting owner CIK 1455312. 12 Form 4 filings on record with FilingPulse; latest filed 2026-06-23.
Transaction summary — filings shown
Covers all 12 filings on record, filed 2024-05-02 to 2026-06-23. 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 — 20,000 shares, $37,800 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, …): 25.
- Largest priced transaction: purchase of 20,000 shares @ $1.89 ($37,800) in CERUS CORP, filed 2024-05-10.
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 |
|---|---|---|---|---|---|
| CERUS CORP (CERS) | Director | 4 | 1 leg · 20,000 sh · $37,800 | — | 3 |
| Alamar Biosciences, Inc. (ALMR) | Director | 1 | — | — | 6 |
| REVVITY, INC. (RVTY) | Director | 3 | — | — | 6 |
| STANDARD BIOTOOLS INC. (LAB) | Director | 3 | — | — | 6 |
| Telesis Bio Inc. (TBIO) | Director | 1 | — | — | 4 |
Form 4 filings — Witney Frank
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-23 | 4 | STANDARD BIOTOOLS INC. (LAB) | Grant/award (A): 99,116 @ $0 · Grant/award (A): 175,923 (derivative) @ $0 | EDGAR |
| 2026-06-02 | 4 | CERUS CORP (CERS) | Grant/award (A): 60,000 @ $0 | EDGAR |
| 2026-05-11 | 4 | REVVITY, INC. (RVTY) | Grant/award (A): 1,015 @ $0 · Grant/award (A): 1,265 @ $0 | EDGAR |
| 2026-04-20 | 4 | Alamar Biosciences, Inc. (ALMR) | Other (J): 49,627 (derivative) @ $0 · Other (J): 49,627 (derivative) @ $0 · Other (J): 33,085 (derivative) @ $0 · Other (J): 33,085 (derivative) @ $0 · Other (J): 124,069 (derivative) @ $0 · Other (J): 124,069 (derivative) @ $0 | EDGAR |
| 2025-06-24 | 4 | STANDARD BIOTOOLS INC. (LAB) | Grant/award (A): 94,592 @ $0 · Grant/award (A): 125,660 (derivative) @ $0 | EDGAR |
| 2025-06-04 | 4 | CERUS CORP (CERS) | Grant/award (A): 60,000 @ $0 | EDGAR |
| 2025-05-01 | 4 | REVVITY, INC. (RVTY) | Grant/award (A): 1,074 @ $0 · Grant/award (A): 1,338 @ $0 | EDGAR |
| 2024-07-02 | 4 | STANDARD BIOTOOLS INC. (LAB) | Grant/award (A): 43,128 @ $0 · Grant/award (A): 72,213 (derivative) @ $0 | EDGAR |
| 2024-06-06 | 4 | CERUS CORP (CERS) | Grant/award (A): 40,000 @ $5 | EDGAR |
| 2024-05-10 | 4 | CERUS CORP (CERS) | Purchase (P): 20,000 @ $1.89 | EDGAR |
| 2024-05-03 | 4 | Telesis Bio Inc. (TBIO) | Grant/award (A): 46,752 @ $0 · Grant/award (A): 48,354 @ $0 · Grant/award (A): 70,129 (derivative) @ $0 · Grant/award (A): 30,362 (derivative) @ $0 | EDGAR |
| 2024-05-02 | 4 | REVVITY, INC. (RVTY) | Grant/award (A): 977 @ $0 · Grant/award (A): 1,218 @ $0 | 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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