RIEFLIN WILLIAM JL — SEC Form 4 filings
SEC reporting owner CIK 1182471. 6 Form 4 filings on record with FilingPulse; latest filed 2026-06-12.
Transaction summary — filings shown
Covers all 6 filings on record, filed 2024-04-01 to 2026-06-12. 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): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 13.
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 |
|---|---|---|---|---|---|
| NGM BIOPHARMACEUTICALS INC (NGM) | Director | 1 | — | — | 8 |
| Lyell Immunopharma, Inc. (LYEL) | Director | 3 | — | — | 3 |
| RAPT Therapeutics, Inc. (RAPT) | Director | 2 | — | — | 2 |
Form 4 filings — RIEFLIN WILLIAM JL
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-12 | 4 | Lyell Immunopharma, Inc. (LYEL) | Grant/award (A): 9,250 (derivative) @ $0 | EDGAR |
| 2025-05-19 | 4 | Lyell Immunopharma, Inc. (LYEL) | Grant/award (A): 130,000 (derivative) @ $0 | EDGAR |
| 2024-06-17 | 4 | Lyell Immunopharma, Inc. (LYEL) | Grant/award (A): 130,000 (derivative) @ $0 | EDGAR |
| 2024-05-23 | 4 | RAPT Therapeutics, Inc. (RAPT) | Grant/award (A): 36,490 (derivative) @ $0 | EDGAR |
| 2024-04-08 | 4 | NGM BIOPHARMACEUTICALS INC (NGM) | Code (U): 5,172 · Code (U): 2,769,168 · Disposition to issuer (D): 78,407 (derivative) · Disposition to issuer (D): 80,000 (derivative) · Disposition to issuer (D): 80,000 (derivative) · Disposition to issuer (D): 75,000 (derivative) · +2 more | EDGAR |
| 2024-04-01 | 4 | RAPT Therapeutics, Inc. (RAPT) | Grant/award (A): 11,871 (derivative) @ $7.58 | 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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