Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2025-03-06 Sale | 2025-03-10 12:53 pm | Ultragenyx Pharmaceutical Inc. | RARE | Horn Howard Chief Financial Officer | 1,785 | $40.4 | $72,114 | 106,169 (Direct) | View |
2025-03-03 Sale | 2025-03-04 8:19 pm | Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP | 6,028 | $42.1 | $253,779 | 264,730 (Direct) | View |
2025-03-03 Sale | 2025-03-04 8:18 pm | Ultragenyx Pharmaceutical Inc. | RARE | Parschauer Karah Herdman EVP and Chief Legal Officer | 12,846 | $42.1 | $540,817 | 75,287 (Direct) | View |
2025-03-03 Sale | 2025-03-04 8:16 pm | Ultragenyx Pharmaceutical Inc. | RARE | Crombez Eric EVP and Chief Medical Officer | 8,945 | $42.1 | $376,585 | 102,168 (Direct) | View |
2025-03-03 Sale | 2025-03-04 8:12 pm | Ultragenyx Pharmaceutical Inc. | RARE | Pinion John Richard See Remarks | 14,439 | $42.1 | $607,882 | 134,502 (Direct) | View |
2025-02-28 Sale | 2025-03-04 8:10 pm | Ultragenyx Pharmaceutical Inc. | RARE | KAKKIS EMIL D President & CEO | 98,434 | $42.2 | $4,153,571 | 2,879,164 (Indirect Direct) | View |
2025-03-03 Sale | 2025-03-04 8:06 pm | Ultragenyx Pharmaceutical Inc. | RARE | Harris Erik EVP & Chief Commercial Officer | 15,103 | $42.1 | $635,836 | 118,101 (Direct) | View |
2025-03-03 Sale | 2025-03-04 8:00 pm | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 967 | $42.1 | $40,711 | 55,756 (Direct) | View |
2025-02-27 Sale | 2025-03-03 1:58 pm | Ultragenyx Pharmaceutical Inc. | RARE | Parschauer Karah Herdman EVP and Chief Legal Officer | 2,990 | $42.88 | $128,224 | 95,764 (Direct) | View |
2024-12-30 Sale | 2024-12-31 2:05 pm | Ultragenyx Pharmaceutical Inc. | RARE | KAKKIS EMIL D President & CEO | 11,727 | $42.23 | $495,231 | 2,748,590 (Indirect Direct) | View |
2024-12-10 Sale | 2024-12-11 6:44 pm | Ultragenyx Pharmaceutical Inc. | RARE | KAKKIS EMIL D President & CEO | 8,273 | $50 | $413,650 | 2,760,317 (Indirect Direct) | View |
2024-10-10 Sale | 2024-10-11 4:48 pm | Ultragenyx Pharmaceutical Inc. | RARE | Horn Howard Chief Financial Officer | 7,465 | $52.76 | $393,853 | 92,301 (Direct) | View |
2024-09-03 Sale | 2024-09-05 11:53 am | Ultragenyx Pharmaceutical Inc. | RARE | KAKKIS EMIL D President & CEO | 20,000 | $55.85 | $1,117,000 | 2,788,582 (Indirect Direct) | View |
2024-09-03 Sale | 2024-09-05 11:50 am | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 91 | $56.19 | $5,113 | 41,551 (Direct) | View |
2024-08-06 Sale | 2024-08-07 2:48 pm | Ultragenyx Pharmaceutical Inc. | RARE | KAKKIS EMIL D President & CEO | 20,000 | $50.17 | $1,003,400 | 2,808,582 (Indirect Direct) | View |
2024-07-02 Sale | 2024-07-03 2:07 pm | Ultragenyx Pharmaceutical Inc. | RARE | Sanders Corazon (Corsee) D. Director | 584 | $40.98 | $23,932 | 12,009 (Direct) | View |
2024-06-12 Sale | 2024-06-12 7:47 pm | Ultragenyx Pharmaceutical Inc. | RARE | Parschauer Karah Herdman EVP and Chief Legal Officer | 9,806 | $45 | $441,270 | 57,981 (Direct) | View |
2024-06-10 Sale | 2024-06-10 7:58 pm | Ultragenyx Pharmaceutical Inc. | RARE | Sanders Corazon (Corsee) D. Director | 1,737 | $41.1 | $71,391 | 7,248 (Direct) | View |
2024-05-02 Sale | 2024-05-03 3:23 pm | Ultragenyx Pharmaceutical Inc. | RARE | Crombez Eric EVP and Chief Medical Officer | 354 | $43.66 | $15,456 | 48,431 (Direct) | View |
2024-04-18 Sale | 2024-04-19 4:35 pm | Ultragenyx Pharmaceutical Inc. | RARE | Crombez Eric EVP and Chief Medical Officer | 142 | $44.1 | $6,262 | 48,785 (Direct) | View |
2024-03-11 Sale | 2024-03-12 1:41 pm | Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP | 11,509 | $49.93 | $574,644 | 252,823 (Direct) | View |
2024-03-07 Sale | 2024-03-11 12:54 pm | Ultragenyx Pharmaceutical Inc. | RARE | Fust Matthew K Director | 12,195 | $50.88 | $620,443 | 14,860 (Direct) | View |
2024-03-01 Sale | 2024-03-05 8:22 pm | Ultragenyx Pharmaceutical Inc. | RARE | Parschauer Karah Herdman EVP and Chief Legal Officer | 3,756 | $53.76 | $201,923 | 98,740 (Direct) | View |
2024-03-01 Sale | 2024-03-05 8:19 pm | Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP | 1,011 | $53.76 | $54,351 | 295,732 (Direct) | View |
2024-03-01 Sale | 2024-03-05 8:15 pm | Ultragenyx Pharmaceutical Inc. | RARE | Pinion John Richard See Remarks | 4,173 | $53.76 | $224,340 | 120,668 (Direct) | View |
2024-03-01 Sale | 2024-03-05 8:13 pm | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 341 | $53.76 | $18,332 | 51,931 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2025-03-01 Option Award | 2025-03-04 8:19 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP | 18,443 | $0 | 264,730 (Direct) | View |
2025-03-03 Tax Withholding | 2025-03-04 8:19 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP | 508 | $42.92 | 264,730 (Direct) | View |
2025-03-01 Option Award | 2025-03-04 8:18 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Parschauer Karah Herdman EVP and Chief Legal Officer | 18,443 | $0 | 75,287 (Direct) | View |
2025-03-01 Option Award | 2025-03-04 8:16 pm | N/A 2035-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Crombez Eric EVP and Chief Medical Officer | 62,030 | $0 | 102,168 (Direct) | View |
2025-03-01 Option Award | 2025-03-04 8:12 pm | N/A 2035-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Pinion John Richard See Remarks | 59,011 | $0 | 134,502 (Direct) | View |
2025-03-03 Tax Withholding | 2025-03-04 8:12 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Pinion John Richard See Remarks | 31 | $42.92 | 134,502 (Direct) | View |
2025-03-01 Option Award | 2025-03-04 8:10 pm | N/A 2035-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | KAKKIS EMIL D President & CEO | 229,008 | $0 | 2,879,164 (Direct) | View |
2025-03-01 Option Award | 2025-03-04 8:06 pm | N/A 2035-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Harris Erik EVP & Chief Commercial Officer | 65,502 | $0 | 118,101 (Direct) | View |
2025-03-01 Option Award | 2025-03-04 8:02 pm | N/A 2035-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl See Remarks | 59,011 | $0 | 140,665 (Direct) | View |
2025-03-03 Tax Withholding | 2025-03-04 8:02 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl See Remarks | 1,348 | $42.92 | 140,665 (Direct) | View |
2025-03-01 Option Award | 2025-03-04 8:00 pm | N/A 2035-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 15,024 | $0 | 55,756 (Direct) | View |
2025-03-03 Tax Withholding | 2025-03-04 8:00 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 141 | $42.92 | 55,756 (Direct) | View |
2025-03-01 Option Award | 2025-03-04 7:56 pm | N/A 2035-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Horn Howard Chief Financial Officer | 43,813 | $0 | 136,114 (Direct) | View |
2025-03-01 Option Award | 2025-03-03 1:58 pm | N/A 2035-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Parschauer Karah Herdman EVP and Chief Legal Officer | 40,568 | $0 | 95,764 (Direct) | View |
2024-12-10 Gift | 2024-12-11 6:47 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 648 | $0 | 41,840 (Direct) | View |
2024-12-09 Gift | 2024-12-11 6:44 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | KAKKIS EMIL D President & CEO | 20,000 | $0 | 2,760,317 (Indirect) | View |
2024-09-16 Option Award | 2024-09-18 1:03 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 700 | $0 | 42,251 (Direct) | View |
2024-06-18 Option Award | 2024-06-20 2:29 pm | N/A 2034-06-18 | Ultragenyx Pharmaceutical Inc. | RARE | Dunsire Deborah Director | 15,245 | $0 | 34,975 (Direct) | View |
2024-06-18 Option Award | 2024-06-20 2:26 pm | N/A 2034-06-18 | Ultragenyx Pharmaceutical Inc. | RARE | Fust Matthew K Director | 15,245 | $0 | 30,105 (Direct) | View |
2024-06-18 Option Award | 2024-06-20 2:25 pm | N/A 2034-06-18 | Ultragenyx Pharmaceutical Inc. | RARE | WELCH DANIEL G Director | 15,245 | $0 | 36,850 (Direct) | View |
2024-06-18 Option Award | 2024-06-20 2:24 pm | N/A 2034-06-18 | Ultragenyx Pharmaceutical Inc. | RARE | NARACHI MICHAEL Director | 15,245 | $0 | 36,850 (Direct) | View |
2024-06-18 Option Award | 2024-06-20 2:23 pm | N/A 2034-06-18 | Ultragenyx Pharmaceutical Inc. | RARE | Ray Amrit Director | 15,245 | $0 | 27,525 (Direct) | View |
2024-06-18 Option Award | 2024-06-20 2:22 pm | N/A 2034-06-18 | Ultragenyx Pharmaceutical Inc. | RARE | Sanders Corazon (Corsee) D. Director | 15,245 | $0 | 22,493 (Direct) | View |
2024-06-18 Option Award | 2024-06-20 2:22 pm | N/A 2034-06-18 | Ultragenyx Pharmaceutical Inc. | RARE | SULIMAN SHEHNAAZ Director | 15,245 | $0 | 30,100 (Direct) | View |
2024-04-16 Tax Withholding | 2024-04-18 6:06 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 14 | $42.31 | 41,366 (Direct) | View |
2024-03-01 Option Award | 2024-03-05 8:23 pm | N/A 2034-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Horn Howard Chief Financial Officer | 53,600 | $0 | 133,966 (Direct) | View |
2024-03-01 Option Award | 2024-03-05 8:22 pm | N/A 2034-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Parschauer Karah Herdman EVP and Chief Legal Officer | 50,157 | $0 | 98,740 (Direct) | View |
2024-03-01 Option Award | 2024-03-05 8:19 pm | N/A 2034-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP | 50,157 | $0 | 295,732 (Direct) | View |
2024-03-01 Tax Withholding | 2024-03-05 8:19 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP | 274 | $53.69 | 295,732 (Direct) | View |
2024-03-01 Option Award | 2024-03-05 8:17 pm | N/A 2034-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl See Remarks | 50,157 | $0 | 114,402 (Direct) | View |
2024-03-01 Tax Withholding | 2024-03-05 8:17 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl See Remarks | 470 | $53.69 | 114,402 (Direct) | View |
2024-03-01 Option Award | 2024-03-05 8:15 pm | N/A 2034-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Pinion John Richard See Remarks | 50,157 | $0 | 120,668 (Direct) | View |
2024-03-01 Tax Withholding | 2024-03-05 8:15 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Pinion John Richard See Remarks | 60 | $53.69 | 120,668 (Direct) | View |
2024-03-01 Option Award | 2024-03-05 8:13 pm | N/A 2034-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 24,501 | $0 | 51,931 (Direct) | View |
2024-03-01 Tax Withholding | 2024-03-05 8:13 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huizenga Theodore Alan SVP, Chief Accounting Officer | 121 | $53.69 | 51,931 (Direct) | View |