Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem 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>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-07-30 11:18 am Purchase | 2026-06-30 | 13G | SUTRO BIOPHARMA INC STRO | BlackRock Inc. BLK | 1,065,366 6.400% | 856,138 (+409.19%) | Filing History |
| 2026-05-15 4:39 pm Purchase | 2026-02-11 | 13G | SUTRO BIOPHARMA INC STRO | Samsara BioCapital, L.P. | 1,062,872 6.400% | 1,062,872 (New Position) | Filing History |
| 2026-05-15 4:01 pm Purchase | 2026-03-31 | 13G | SUTRO BIOPHARMA INC STRO | Kynam Capital Management, LP | 872,558 5.270% | 328,413 (+60.35%) | Filing History |
| 2026-05-14 4:13 pm Purchase | 2026-03-31 | 13G | SUTRO BIOPHARMA INC STRO | Affinity Asset Advisors, LLC | 1,069,519 6.500% | 321,137 (+42.91%) | Filing History |
| 2026-05-01 4:10 pm Purchase | 2026-04-24 | 13G | SUTRO BIOPHARMA INC STRO | Point72 Asset Management, L.P. | 946,829 5.700% | 647,084 (+215.88%) | Filing History |
| 2026-04-21 5:49 pm Sale | 2026-03-31 | 13G | SUTRO BIOPHARMA INC STRO | Millennium Management LLC | 210,378 1.300% | -261,344 (-55.40%) | Filing History |
| 2026-04-21 4:19 pm Purchase | 2026-04-14 | 13G | SUTRO BIOPHARMA INC STRO | Perceptive Advisors LLC | 898,025 5.400% | 898,025 (New Position) | Filing History |
| 2026-02-18 7:49 pm Purchase | 2026-02-10 | 13G | SUTRO BIOPHARMA INC STRO | BIOTECHNOLOGY VALUE FUND L P | 1,251,788 7.600% | 1,251,788 (New Position) | Filing History |
| 2026-02-13 4:50 pm Unchanged | 2025-12-31 | 13G | SUTRO BIOPHARMA INC STRO | Montanova Capital, LLC | 0 0.000% | 0 (Unchanged) | Filing History |
| 2026-02-13 4:49 pm Sale | 2025-12-31 | 13G | SUTRO BIOPHARMA INC STRO | Montanova Capital, LLC | 0 0.000% | -648,832 (Position Closed) | Filing History |
| 2026-01-29 7:58 pm Purchase | 2026-01-22 | 13G | SUTRO BIOPHARMA INC STRO | Affinity Asset Advisors, LLC | 748,382 8.800% | 90,005 (+13.67%) | Filing History |
| 2025-10-23 4:07 pm Purchase | 2025-10-16 | 13G | SUTRO BIOPHARMA INC STRO | Affinity Asset Advisors, LLC | 658,377 7.770% | 658,377 (New Position) | Filing History |
| 2025-08-14 6:10 pm Sale | 2025-06-30 | 13G | SUTRO BIOPHARMA INC STRO | RA Capital Management, L.P. | 0 0.000% | -443,464 (Position Closed) | Filing History |
| 2025-08-13 8:47 pm Purchase | 2025-06-30 | 13G | SUTRO BIOPHARMA INC STRO | Montanova Capital, LLC | 648,832 7.700% | 71,013 (+12.29%) | Filing History |
| 2025-07-29 2:41 pm Sale | 2025-06-30 | 13G | SUTRO BIOPHARMA INC STRO | VANGUARD GROUP INC | 411,525 4.870% | -7,982 (-1.90%) | Filing History |
| 2025-07-16 7:02 pm Sale | 2025-06-30 | 13G | SUTRO BIOPHARMA INC STRO | BlackRock Inc. BLK | 209,228 2.500% | -405,133 (-65.94%) | Filing History |
| 2025-06-30 4:36 pm Purchase | 2025-06-27 | 13G | SUTRO BIOPHARMA INC STRO | Millennium Management LLC | 471,722 5.600% | 334,820 (+244.57%) | Filing History |
| 2025-05-15 11:39 am Purchase | 2025-03-31 | 13G | SUTRO BIOPHARMA INC STRO | Kynam Capital Management, LP | 544,145 6.440% | 544,145 (New Position) | Filing History |
| 2025-04-17 09:35 am Purchase | 2025-03-31 | 13G | SUTRO BIOPHARMA INC STRO | BlackRock Inc. BLK | 614,361 7.300% | 31,969 (+5.49%) | Filing History |
| 2025-04-04 4:32 pm Purchase | 2025-03-28 | 13G | SUTRO BIOPHARMA INC STRO | RA Capital Management, L.P. | 443,464 5.300% | 443,464 (New Position) | Filing History |