Huang Dennis Karl has filed 15 insider transactions across 1 company since March 2023.
Most recent transaction: a tax payment of 999 shares of Ultragenyx Pharmaceutical Inc. ($RARE) on March 02, 2026.
Activity breakdown: 0 open-market purchases and 1 sale.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 2, 2026 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | F | Common Stock | 999 | $23.39 | 124,729.0000 | 98,600,000 | 0.79% | 0.00% |
| March 1, 2026 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Common Stock | 11137 | $0.00 | 125,728.0000 | 98,600,000 | 9.72% | 0.01% |
| March 1, 2025 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Common Stock | 18443 | $0.00 | 115,939.0000 | 90,538,118 | 18.92% | 0.02% |
| March 3, 2025 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | F | Common Stock | 1348 | $42.92 | 114,591.0000 | 90,538,118 | 1.16% | 0.00% |
| March 1, 2025 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Stock Option (Right to Buy) | 26074 | $0.00 | 26,074.0000 | 90,538,118 | 9999.99% | 0.03% |
| March 1, 2025 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Common Stock | 14494 | $0.00 | 97,496.0000 | 90,538,118 | 17.46% | 0.02% |
| March 1, 2024 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | F | Common Stock | 470 | $53.69 | 83,002.0000 | 73,543,862 | 0.56% | 0.00% |
| March 1, 2024 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Stock Option (Right to Buy) | 31400 | $0.00 | 31,400.0000 | 73,543,862 | 9999.99% | 0.04% |
| March 1, 2024 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Common Stock | 957 | $0.00 | 83,472.0000 | 73,543,862 | 1.16% | 0.00% |
| March 1, 2024 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Common Stock | 17800 | $0.00 | 82,515.0000 | 73,543,862 | 27.51% | 0.02% |
| March 1, 2023 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | S | Common Stock | 389 | $45.65 | 75,314.0000 | 69,914,225 | 0.51% | 0.00% |
| March 1, 2023 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | D | Common Stock | 10599 | $45.65 | 64,715.0000 | 69,914,225 | 14.07% | 0.02% |
| March 1, 2023 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Stock Option (Right to Buy) | 39400 | $0.00 | 39,400.0000 | 69,914,225 | 9999.99% | 0.06% |
| March 1, 2023 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Common Stock | 2663 | $0.00 | 53,703.0000 | 69,914,225 | 5.22% | 0.00% |
| March 1, 2023 | Ultragenyx Pharmaceutical Inc. | $RARE | Huang Dennis Karl | See Remarks | A | Common Stock | 22000 | $0.00 | 75,703.0000 | 69,914,225 | 40.97% | 0.03% |