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 |
2022-03-01 Sale | 2022-03-03 6:09 pm | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl See Remarks | 3,234 | $66.62 | $215,449 | 75,940 (Direct) | View |
2021-10-14 Sale | 2021-10-18 6:55 pm | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 358 | $81.14 | $29,048 | 40,148 (Direct) | View |
2021-05-06 Sale | 2021-05-10 6:14 pm | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 363 | $113.68 | $41,266 | 40,506 (Direct) | View |
2021-03-01 Sale | 2021-03-03 8:39 pm | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 4,255 | $138.18 | $587,956 | 51,761 (Direct) | View |
2020-10-14 Sale | 2020-10-16 7:18 pm | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 262 | $88 | $23,056 | 34,699 (Direct) | View |
2019-03-01 Sale(A) | 2019-04-17 5:58 pm | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 626 | $65.52 | $41,016 | 41,693 (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 |
2022-03-01 Option Award | 2022-03-03 6:09 pm | N/A 2032-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl See Remarks | 38,900 | $0 | 75,940 (Direct) | View |
2021-03-01 Option Award | 2021-03-03 8:39 pm | N/A 2031-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 21,136 | $0 | 51,761 (Direct) | View |
2020-06-01 Tax Withholding | 2020-06-03 2:21 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 262 | $69.38 | 34,961 (Direct) | View |
2020-05-06 Tax Withholding | 2020-05-08 8:10 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 248 | $66.26 | 34,979 (Direct) | View |
2020-04-19 Tax Withholding | 2020-04-21 3:32 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 248 | $58.57 | 35,227 (Direct) | View |
2020-03-01 Option Award | 2020-03-03 7:55 pm | N/A 2030-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 35,434 | $0 | 57,475 (Direct) | View |
2020-03-01 Tax Withholding | 2020-03-03 7:55 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 1,779 | $56.08 | 57,475 (Direct) | View |
2019-10-14 Option Award | 2019-10-16 7:31 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 1,434 | $0 | 23,579 (Direct) | View |
2019-06-01 Tax Withholding | 2019-06-04 6:51 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 260 | $54.93 | 22,145 (Direct) | View |
2019-05-05 Tax Withholding | 2019-05-07 6:48 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 649 | $67.99 | 22,405 (Direct) | View |
2019-05-05 Option Award | 2019-05-07 6:48 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 1,434 | $0 | 22,405 (Direct) | View |
2019-04-19 Tax Withholding | 2019-04-23 6:36 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 248 | $64.43 | 21,445 (Direct) | View |
2019-03-01(A) Option Award | 2019-04-17 5:58 pm | N/A 2029-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 26,000 | $0 | 41,693 (Direct) | View |
2019-03-01 Option Award | 2019-03-04 5:12 pm | N/A 2029-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 26,000 | $0 | 41,711 (Direct) | View |
2019-03-01 Tax Withholding | 2019-03-04 5:12 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 607 | $67.55 | 41,711 (Direct) | View |
2018-06-01 Tax Withholding | 2018-06-04 4:52 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 260 | $73.73 | 16,124 (Direct) | View |
2018-05-05 Tax Withholding | 2018-05-08 5:44 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 649 | $54.5 | 16,384 (Direct) | View |
2018-04-19 Option Award | 2018-04-19 4:48 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 1,431 | $0 | 16,850 (Direct) | View |
2018-03-01 Option Award | 2018-03-05 4:23 pm | N/A 2028-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 29,500 | $0 | 40,419 (Direct) | View |
2018-03-01 Tax Withholding | 2018-03-05 4:23 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Huang Dennis Karl EVP & Chief Tech Ops Officer | 205 | $48.43 | 40,419 (Direct) | View |