PRINS RICHARD K — SEC Form 4 filings
SEC reporting owner CIK 1047579. 13 Form 4 filings on record with FilingPulse; latest filed 2026-08-12.
Transaction summary — filings shown
Covers all 13 filings on record, filed 2024-03-15 to 2026-08-12. 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): 5 legs across 5 filings — 44,253 shares, $1,693,343 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 40.
- Largest priced transaction: sale of 17,101 shares @ $43.07 ($736,550) in Amphastar Pharmaceuticals, Inc., filed 2024-08-13.
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 |
|---|---|---|---|---|---|
| Amphastar Pharmaceuticals, Inc. (AMPH) | Director | 8 | — | 5 legs · 44,253 sh · $1,693,343 | 21 |
| IGC Pharma, Inc. (IGC) | Director | 5 | — | — | 19 |
Form 4 filings — PRINS RICHARD K
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-12 | 4 | Amphastar Pharmaceuticals, Inc. (AMPH) | Sale (S): 7,973 @ $20.30 | EDGAR |
| 2026-06-03 | 4 | Amphastar Pharmaceuticals, Inc. (AMPH) | Gift (G): 1,500 @ $0 · Grant/award (A): 8,143 @ $0 · Grant/award (A): 17,365 (derivative) @ $0 | EDGAR |
| 2026-04-06 | 4 | IGC Pharma, Inc. (IGC) | Option exercise (M): 100,000 @ $0 · Option exercise (M): 70,000 @ $0 · Option exercise (M): 100,000 (derivative) @ $0 · Option exercise (M): 70,000 (derivative) @ $0 | EDGAR |
| 2026-01-20 | 4 | IGC Pharma, Inc. (IGC) | Option exercise (M): 100,000 @ $0 · Option exercise (M): 100,000 (derivative) @ $0 | EDGAR |
| 2025-11-25 | 4 | Amphastar Pharmaceuticals, Inc. (AMPH) | Option exercise (M): 4,179 @ $16.69 · Sale (S): 4,179 @ $27.10 · Option exercise (M): 4,179 (derivative) @ $0 | EDGAR |
| 2025-10-22 | 4 | IGC Pharma, Inc. (IGC) | Grant/award (A): 750,000 (derivative) @ $0 | EDGAR |
| 2025-06-04 | 4 | Amphastar Pharmaceuticals, Inc. (AMPH) | Grant/award (A): 5,122 @ $0 · Grant/award (A): 11,402 (derivative) @ $0 | EDGAR |
| 2024-12-11 | 4 | Amphastar Pharmaceuticals, Inc. (AMPH) | Option exercise (M): 10,000 @ $19.52 · Sale (S): 10,000 @ $43.77 · Gift (G): 410 @ $0 · Option exercise (M): 10,000 (derivative) @ $0 | EDGAR |
| 2024-11-13 | 4 | Amphastar Pharmaceuticals, Inc. (AMPH) | Option exercise (M): 2,500 @ $16.69 · Sale (S): 5,000 @ $48.80 · Gift (G): 1,000 @ $0 · Option exercise (M): 2,500 (derivative) @ $0 | EDGAR |
| 2024-08-13 | 4 | Amphastar Pharmaceuticals, Inc. (AMPH) | Option exercise (M): 3,915 @ $20.03 · Option exercise (M): 6,004 @ $20.08 · Option exercise (M): 7,182 @ $19.52 · Sale (S): 17,101 @ $43.07 · Option exercise (M): 3,915 (derivative) @ $0 · Option exercise (M): 6,004 (derivative) @ $0 · +1 more | EDGAR |
| 2024-08-12 | 4 | IGC Pharma, Inc. (IGC) | Gift (G): 200,000 @ $0 | EDGAR |
| 2024-06-05 | 4 | Amphastar Pharmaceuticals, Inc. (AMPH) | Grant/award (A): 3,076 @ $0 · Grant/award (A): 6,864 (derivative) @ $0 | EDGAR |
| 2024-03-15 | 4 | IGC Pharma, Inc. (IGC) | Option exercise (M): 100,000 @ $0 · Option exercise (M): 58,333 @ $0 · Option exercise (M): 100,000 @ $0 · Option exercise (M): 42,750 @ $0 · Option exercise (M): 28,500 @ $0 · Option exercise (M): 100,000 (derivative) @ $0 · +5 more | 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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