Kassberg Thomas Richard — SEC Form 4 filings
SEC reporting owner CIK 1303811. 6 Form 4 filings on record with FilingPulse; latest filed 2026-05-21.
Transaction summary — filings shown
Covers all 6 filings on record, filed 2024-03-05 to 2026-05-21. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 3 legs across 3 filings — 18,548 shares, $882,775 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 9.
- Largest priced transaction: sale of 11,509 shares @ $49.93 ($574,644) in Ultragenyx Pharmaceutical Inc., filed 2024-03-12.
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 |
|---|---|---|---|---|---|
| Ultragenyx Pharmaceutical Inc. (RARE) | CBO & EVP | 3 | — | 3 legs · 18,548 sh · $882,775 | 6 |
| Passage BIO, Inc. (PASG) | Director | 3 | — | — | 3 |
Form 4 filings — Kassberg Thomas Richard
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-05-21 | 4 | Passage BIO, Inc. (PASG) | Grant/award (A): 10,539 (derivative) @ $0 | EDGAR |
| 2025-05-30 | 4 | Passage BIO, Inc. (PASG) | Grant/award (A): 143,789 (derivative) @ $0 | EDGAR |
| 2025-03-04 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Grant/award (A): 18,443 @ $0 · Sale (S): 6,028 @ $42.10 · Tax withholding (F): 508 @ $42.92 | EDGAR |
| 2024-10-02 | 4 | Passage BIO, Inc. (PASG) | Grant/award (A): 174,139 (derivative) @ $0 | EDGAR |
| 2024-03-12 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Sale (S): 11,509 @ $49.93 | EDGAR |
| 2024-03-05 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Grant/award (A): 17,800 @ $0 · Grant/award (A): 957 @ $0 · Tax withholding (F): 274 @ $53.69 · Sale (S): 1,011 @ $53.76 · Grant/award (A): 31,400 (derivative) @ $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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