Huizenga Theodore Alan — SEC Form 4 filings
SEC reporting owner CIK 1603347. 13 Form 4 filings on record with FilingPulse; latest filed 2026-09-15.
Transaction summary — filings shown
Covers all 13 filings on record, filed 2024-03-05 to 2026-09-15. 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): 9 legs across 9 filings — 4,708 shares, $128,454 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 13.
- Largest priced transaction: sale of 967 shares @ $42.10 ($40,711) in Ultragenyx Pharmaceutical Inc., filed 2025-03-04.
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) | SVP, Chief Accounting Officer | 13 | — | 9 legs · 4,708 sh · $128,454 | 13 |
Form 4 filings — Huizenga Theodore Alan
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-15 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Sale (S): 1,283 @ $13.57 | EDGAR |
| 2026-09-08 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Sale (S): 161 @ $13.99 | EDGAR |
| 2026-04-24 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Grant/award (A): 20,241 @ $0 · Grant/award (A): 7,348 (derivative) @ $0 | EDGAR |
| 2026-03-03 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Tax withholding (F): 148 @ $23.39 · Sale (S): 1,632 @ $22.80 | EDGAR |
| 2025-12-30 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Sale (S): 85 @ $34.38 | EDGAR |
| 2025-09-19 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Sale (S): 64 @ $29.17 | EDGAR |
| 2025-09-08 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Sale (S): 84 @ $31.39 | EDGAR |
| 2025-03-04 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Grant/award (A): 9,392 @ $0 · Sale (S): 967 @ $42.10 · Tax withholding (F): 141 @ $42.92 · Grant/award (A): 5,632 (derivative) @ $0 | EDGAR |
| 2024-12-11 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Gift (G): 648 @ $0 | EDGAR |
| 2024-09-18 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Grant/award (A): 700 @ $0 | EDGAR |
| 2024-09-05 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Sale (S): 91 @ $56.19 | EDGAR |
| 2024-04-18 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Tax withholding (F): 14 @ $42.31 | EDGAR |
| 2024-03-05 | 4 | Ultragenyx Pharmaceutical Inc. (RARE) | Grant/award (A): 13,950 @ $0 · Tax withholding (F): 121 @ $53.69 · Sale (S): 341 @ $53.76 · Grant/award (A): 8,200 (derivative) @ $0 · Grant/award (A): 2,351 (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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