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 |
| 2026-05-13 1:46 pm Purchase | 2026-03-31 | 13G | VIANT TECHNOLOGY INC DSP | Vanderhook Timothy | 8,702,144 32.400% | 125,766 (+1.47%) | Filing History |
| 2026-05-13 1:46 pm Purchase | 2026-03-31 | 13G | VIANT TECHNOLOGY INC DSP | Vanderhook Christopher | 8,787,144 32.800% | 210,766 (+2.46%) | Filing History |
| 2026-03-27 1:52 pm Sale | 2026-03-13 | 13G | VIANT TECHNOLOGY INC DSP | VANGUARD GROUP INC | 0 0.000% | -1,035,692 (Position Closed) | Filing History |
| 2026-01-21 2:23 pm Purchase | 2025-12-31 | 13G | VIANT TECHNOLOGY INC DSP | ROYCE & ASSOCIATES LP | 912,043 5.470% | 187,943 (+25.96%) | Filing History |
| 2026-01-14 6:30 pm Sale | 2026-01-09 | 13D | VIANT TECHNOLOGY INC DSP | MADDEN LARRY | 1,226,769 6.900% | -174,654 (-12.46%) | Filing History |
| 2026-01-13 5:25 pm Purchase | 2026-01-09 | 13D | VIANT TECHNOLOGY INC DSP | MADDEN LARRY | 1,401,423 7.800% | 287,039 (+25.76%) | Filing History |
| 2025-12-22 7:41 pm Purchase | 2025-12-15 | 13D | VIANT TECHNOLOGY INC DSP | MADDEN LARRY | 1,114,384 6.300% | 31,222 (+2.88%) | Filing History |
| 2025-11-14 4:07 pm Sale | 2025-09-30 | 13G | VIANT TECHNOLOGY INC DSP | Capital V LLC | 27,509,326 62.300% | -941,777 (-3.31%) | Filing History |
| 2025-08-14 2:27 pm Purchase | 2025-06-30 | 13G | VIANT TECHNOLOGY INC DSP | Punch & Associates Investment Management, Inc. | 1,155,133 7.300% | 165,362 (+16.71%) | Filing History |
| 2025-06-04 8:14 pm Unchanged | 2025-06-02 | 13D | VIANT TECHNOLOGY INC DSP | MADDEN LARRY | 1,083,162 6.460% | 0 (Unchanged) | Filing History |
| 2025-05-15 9:47 pm Purchase | 2024-12-11 | 13D | VIANT TECHNOLOGY INC DSP | MADDEN LARRY | 1,083,162 6.460% | 106,143 (+10.86%) | Filing History |
| 2025-05-15 9:06 pm Purchase | 2025-03-31 | 13G | VIANT TECHNOLOGY INC DSP | Vanderhook Timothy | 8,576,378 34.600% | 23,791 (+0.28%) | Filing History |
| 2025-05-15 9:03 pm Purchase | 2025-03-31 | 13G | VIANT TECHNOLOGY INC DSP | Vanderhook Christopher | 8,576,378 34.600% | 23,791 (+0.28%) | Filing History |
| 2025-05-15 09:00 am Purchase | 2025-03-31 | 13G | VIANT TECHNOLOGY INC DSP | Punch & Associates Investment Management, Inc. | 989,771 6.100% | 989,771 (New Position) | Filing History |
| 2025-04-30 11:23 am Purchase | 2025-03-31 | 13G | VIANT TECHNOLOGY INC DSP | VANGUARD GROUP INC | 1,035,692 6.330% | 221,731 (+27.24%) | Filing History |
| 2025-01-30 10:25 am Sale | 2024-12-31 | 13G | VIANT TECHNOLOGY INC DSP | ROYCE & ASSOCIATES LP | 724,100 4.510% | -198,980 (-21.56%) | Filing History |
| 2024-12-06 4:08 pm Sale | 2024-12-04 | 13D | VIANT TECHNOLOGY INC DSP | MADDEN LARRY | 977,019 5.790% | -63,180 (-6.07%) | Filing History |
| 2024-11-08 8:18 pm Purchase | 2024-09-30 | 13G | VIANT TECHNOLOGY INC DSP | Vanderhook Timothy | 8,552,587 34.600% | 480,392 (+5.95%) | Filing History |
| 2024-11-08 8:16 pm Purchase | 2024-09-30 | 13G | VIANT TECHNOLOGY INC DSP | Vanderhook Christopher | 8,552,587 34.600% | 480,392 (+5.95%) | Filing History |
| 2024-10-22 12:04 pm Sale | 2024-09-30 | 13G | VIANT TECHNOLOGY INC DSP | ROYCE & ASSOCIATES LP | 923,080 5.680% | -224,924 (-19.59%) | Filing History |