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 |
2025-03-03 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 |
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 |
2024-03-01 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 |
2023-10-23 Sale |
2023-10-24 5:22 pm |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
39,878 | $32.78 | $1,307,201 | 246,860 (Direct) |
View |
2023-03-01 Sale |
2023-03-03 7:57 pm |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
5,362 | $45.51 | $244,027 | 286,260 (Direct) |
View |
2022-03-11 Sale |
2022-03-15 4:33 pm |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
10,281 | $67.01 | $688,930 | 227,559 (Direct) |
View |
2022-03-01 Sale |
2022-03-03 6:07 pm |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
2,374 | $66.62 | $158,156 | 252,740 (Direct) |
View |
2021-10-14 Sale |
2021-10-18 6:48 pm |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
286 | $81.14 | $23,206 | 216,266 (Direct) |
View |
2021-05-06 Sale |
2021-05-10 6:11 pm |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
363 | $113.69 | $41,269 | 106,818 (Direct) |
View |
2021-03-01 Sale |
2021-03-03 8:55 pm |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
4,572 | $138.17 | $631,713 | 118,181 (Direct) |
View |
2020-10-14 Sale |
2020-10-16 7:20 pm |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
262 | $87.98 | $23,051 | 101,478 (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 |
2024-09-30 Option Award |
2024-10-02 4:35 pm |
N/A 2034-09-30 |
Passage BIO Inc. | PASG | Kassberg Thomas Richard Director |
174,139 | $0 | 174,139 (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 8:19 pm |
N/A 2034-03-01 |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
50,157 | $0 | 295,732 (Direct) |
View |
2023-10-23 Exercise |
2023-10-24 5:22 pm |
N/A N/A |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
39,878 | $6.86 | 246,860 (Direct) |
View |
2023-10-23 Exercise |
2023-10-24 5:22 pm |
N/A 2023-10-31 |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
39,878 | $0 | 246,860 (Direct) |
View |
2023-03-01 Option Award |
2023-03-03 7:57 pm |
N/A 2033-03-01 |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
64,063 | $0 | 286,260 (Direct) |
View |
2022-03-01 Option Award |
2022-03-03 6:07 pm |
N/A 2032-03-01 |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
38,900 | $0 | 252,740 (Direct) |
View |
2021-12-10 Ownership |
2022-02-01 1:42 pm |
N/A N/A |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
52 | $0 | 216,214 (Direct) |
View |
2021-09-30 Exercise |
2021-10-01 12:57 pm |
N/A 2021-11-17 |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
109,734 | $0 | 216,552 (Direct) |
View |
2021-09-30 Exercise |
2021-10-01 12:57 pm |
N/A N/A |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
109,734 | $0.31 | 216,552 (Direct) |
View |
2021-03-01 Option Award |
2021-03-03 8:55 pm |
N/A 2031-03-01 |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
21,136 | $0 | 118,181 (Direct) |
View |
2020-06-01 Tax Withholding |
2020-06-03 2:18 pm |
N/A N/A |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
348 | $69.38 | 101,740 (Direct) |
View |
2020-05-06 Tax Withholding |
2020-05-08 8:04 pm |
N/A N/A |
Ultragenyx Pharmaceutical Inc. | RARE | Kassberg Thomas Richard CBO & EVP |
248 | $66.26 | 101,675 (Direct) |
View |