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AMPHASTAR PHARMACEUTICALS INC
AMPH 2 03-15-29
Holders
1
Combined Value
$34M
Combined Shares
38,036,000
Investor Activity
BUYSELLImplied priceClick a quarter to see who traded
Held By
| Investor | Value | % of Portfolio | Avg Buy Price | Gain | Last Activity | As of |
|---|---|---|---|---|---|---|
| Howard Marks - Oaktree Capital | $34M | 0.55% | ~$0.92 | — | Sold Q1 2026 | Q1 2026 |
Recent Activity
| Quarter | Investor | Action | Est. Value | Est. Price |
|---|---|---|---|---|
| Q1 2026 | Howard Marks - Oaktree Capital | SELL | −$5M | ~$0.91 |
| Q4 2025 | Howard Marks - Oaktree Capital | BUY | +$23M | ~$0.93 |
| Q3 2025 | Howard Marks - Oaktree Capital | NEW BUY | +$16M | ~$0.91 |
| Q1 2025 | Ken Griffin - Citadel Advisors | SOLD OUT | −$5M | ~$0.93 |
| Q4 2024 | Ken Griffin - Citadel Advisors | NEW BUY | +$5M | ~$0.93 |
Ownership History
| Period | Holders | Total Shares | Δ Shares | Total Value | Implied Price |
|---|---|---|---|---|---|
| Q1 2026 | 1 | 38,036,000 | −12.7% | $34M | $0.91 |
| Q4 2025 | 1 | 43,578,000 | +144.5% | $40M | $0.93 |
| Q3 2025 | 1 | 17,825,000 | +197.1% | $16M | $0.91 |
| Q4 2024 | 1 | 6,000,000 | — | $5M | $0.93 |