Prins Richard K
- SEC CIK
- 0001047579
In the past year, 2 open-market sale filings worth $275.1K and no purchases.
Current role at each company
- AMPH Amphastar Pharmaceuticals, Inc.Directoras of Aug 12, 2026
- IGC IGC Pharma, Inc.Directoras of Apr 6, 2026
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $275.1K
- 2 filings
- Net
- −$275.1K
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Prins Richard K as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
AMPH Amphastar Pharmaceuticals, Inc.
Director13 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 12, 2026 (view filing)6:14 PM ET | Aug 11 | 1 day | Prins Richard KDirector | SSale | −7.97K | $20.30 | −$161.9K | −21.2%29.6K after | |
| Nov 25, 2025 (view filing) | Nov 25 | Same day | Prins Richard KDirector | SSale | −4.18K | $27.10 | −$113.3K | −10.6%35.2K after | |
| Dec 11, 2024 (view filing) | Dec 9 | 2 days | Prins Richard KDirector | SSale | −10.0K | $43.77 | −$437.7K | −24.7%30.5K after | |
| Nov 13, 2024 (view filing) | Nov 12 | 1 day | Prins Richard KDirector | SSale | −5.00K | $48.80 | −$244.0K | −13.7%31.5K after | |
| Aug 13, 2024 (view filing) | Aug 12 | 1 day | Prins Richard KDirector | SSale | −17.1K | $43.07 | −$736.5K | −33.5%34.0K after | |
| Nov 20, 2023 (view filing) | Nov 17 | 3 days | Prins Richard KDirector | SSale | −4.00K | $55.86 | −$223.4K | −11.1%31.9K after | |
| Nov 15, 2023 (view filing) | Nov 13 | 2 days | Prins Richard KDirector | SSale | −5.00K | $52.50 | −$262.5K | −12.2%35.9K after | |
| Aug 21, 2023 (view filing) | Aug 18 | 3 days | Prins Richard KDirector | SSale | −2.00K | $52.50 | −$105.0K | −4.7%40.9K after | |
| Aug 16, 2023 (view filing) | Aug 15 | 1 day | Prins Richard KDirector | SSale | −4.16K | $57.39 | −$238.9K | −8.8%42.9K after | |
| May 16, 2023 (view filing) | May 12-15 | 4 days | Prins Richard KDirector | SSale | −10.0K | $42.78 | −$427.8K | −18.4%44.3K after | 2 lots |