MOULDER LEON O JR — SEC Form 4 filings
SEC reporting owner CIK 1228865. 19 Form 4 filings on record with FilingPulse; latest filed 2026-06-22.
Transaction summary — filings shown
Covers all 19 filings on record, filed 2024-01-24 to 2026-06-22. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 19 legs across 10 filings — 492,928 shares, $7,928,404 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 57,000 shares @ $17.96 ($1,023,720) in Zenas BioPharma, Inc., filed 2026-02-03.
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 |
|---|---|---|---|---|---|
| Zenas BioPharma, Inc. (ZBIO) | See Remarks, Director | 14 | 19 legs · 492,928 sh · $7,928,404 | — | 20 |
| Zai Lab Ltd (ZLAB) | Director | 3 | — | — | 3 |
| Dianthus Therapeutics, Inc. /DE/ (DNTH) | Director | 2 | — | — | 2 |
Form 4 filings — MOULDER LEON O JR
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-22 | 4 | Zai Lab Ltd (ZLAB) | Grant/award (A): 22,371 @ $0 | EDGAR |
| 2026-06-17 | 4 | Zenas BioPharma, Inc. (ZBIO) | Grant/award (A): 500,000 (derivative) @ $0 | EDGAR |
| 2026-05-18 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 60,000 @ $16.88 | EDGAR |
| 2026-04-29 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 25,000 @ $18.02 · Purchase (P): 35,000 @ $17.62 | EDGAR |
| 2026-03-31 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 20,000 @ $18.23 · Purchase (P): 34,000 @ $19.31 | EDGAR |
| 2026-02-03 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 57,000 @ $17.96 | EDGAR |
| 2026-01-09 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 50,000 @ $16.38 · Purchase (P): 30,000 @ $16.30 · Purchase (P): 20,000 @ $16.55 | EDGAR |
| 2025-10-09 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 36,928 @ $20.85 | EDGAR |
| 2025-06-23 | 4 | Zai Lab Ltd (ZLAB) | Grant/award (A): 10,831 @ $0 | EDGAR |
| 2025-06-12 | 4 | Zenas BioPharma, Inc. (ZBIO) | Grant/award (A): 400,000 (derivative) @ $0 | EDGAR |
| 2025-02-19 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 25,000 @ $6.67 | EDGAR |
| 2024-12-04 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 25,000 @ $10.76 · Purchase (P): 45,000 @ $9.98 | EDGAR |
| 2024-11-20 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 7,500 @ $15 · Purchase (P): 2,500 @ $14.57 | EDGAR |
| 2024-09-20 | 4 | Zenas BioPharma, Inc. (ZBIO) | Purchase (P): 10,000 @ $17.91 · Purchase (P): 5,000 @ $17.89 · Purchase (P): 2,367 @ $17.88 · Purchase (P): 2,633 @ $18.97 | EDGAR |
| 2024-09-17 | 4/A | Zenas BioPharma, Inc. (ZBIO) | Conversion (C): 164,523 · Conversion (C): 108,381 · Conversion (C): 372,017 · Conversion (C): 48,254 · Conversion (C): 1,428,571 (derivative) · Conversion (C): 941,088 (derivative) · +3 more | EDGAR |
| 2024-09-16 | 4 | Zenas BioPharma, Inc. (ZBIO) | Conversion (C): 164,523 · Conversion (C): 108,381 · Conversion (C): 372,017 · Conversion (C): 48,254 · Conversion (C): 1,428,571 (derivative) · Conversion (C): 941,088 (derivative) · +3 more | EDGAR |
| 2024-06-20 | 4 | Zai Lab Ltd (ZLAB) | Grant/award (A): 21,253 @ $0 | EDGAR |
| 2024-05-28 | 4 | Dianthus Therapeutics, Inc. /DE/ (DNTH) | Grant/award (A): 11,000 (derivative) @ $0 | EDGAR |
| 2024-01-24 | 4 | Dianthus Therapeutics, Inc. /DE/ (DNTH) | Grant/award (A): 166,667 @ $12 | 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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