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 |
| 2025-08-13 4:12 pm Purchase | 2025-04-07 | 13G | Spok Holdings, Inc. SPOK | Renaissance Technologies LLC | 1,056,650 5.130% | 82,428 (+8.46%) | Filing History |
| 2025-07-29 2:32 pm Purchase | 2025-06-30 | 13G | Spok Holdings, Inc. SPOK | The Vanguard Group | 1,148,536 5.580% | 128,225 (+12.57%) | Filing History |
| 2025-04-30 11:14 am Sale | 2025-03-31 | 13G | Spok Holdings, Inc. SPOK | The Vanguard Group | 1,020,311 4.990% | -33,870 (-3.21%) | Filing History |
| 2024-11-12 5:58 pm Unchanged | 2024-09-30 | 13G | Spok Holdings, Inc. SPOK | The Vanguard Group | 1,054,181 5.200% | 0 (Unchanged) | Filing History |
| 2024-11-04 1:57 pm Purchase | 2024-09-30 | 13G | Spok Holdings, Inc. SPOK | The Vanguard Group | 1,054,181 5.200% | 304,925 (+40.70%) | Filing History |
| 2024-02-13 09:47 am Sale | 2023-12-29 | 13G | Spok Holdings, Inc. SPOK | Renaissance Technologies LLC | 974,222 4.880% | -317,700 (-24.59%) | Filing History |
| 2024-02-09 09:59 am Sale | 2024-02-14 | 13G | Spok Holdings, Inc. SPOK | DIMENSIONAL FUND ADVISORS LP | 736,997 3.700% | -324,443 (-30.57%) | Filing History |
| 2024-01-26 4:23 pm Purchase | 2023-12-31 | 13G | Spok Holdings, Inc. SPOK | BlackRock Inc. BLK | 1,409,039 7.100% | 932,533 (+195.70%) | Filing History |
| 2023-02-14 10:20 am Unchanged | 2022-12-31 | 13G | Spok Holdings, Inc. SPOK | DEPRINCE RACE & ZOLLO INC | 0 0.000% | 0 (Unchanged) | Filing History |
| 2023-02-13 11:19 am Purchase | 2022-12-30 | 13G | Spok Holdings, Inc. SPOK | Renaissance Technologies LLC | 1,291,922 6.560% | 79,400 (+6.55%) | Filing History |
| 2023-02-10 2:42 pm Sale | 2023-02-14 | 13G | Spok Holdings, Inc. SPOK | DIMENSIONAL FUND ADVISORS LP | 1,061,440 5.400% | -247,796 (-18.93%) | Filing History |
| 2022-06-29 4:45 pm Sale | 2022-06-27 | 13D | Spok Holdings, Inc. SPOK | ACACIA RESEARCH CORP ACTG | 966,883 4.900% | -295,000 (-23.38%) | Filing History |
| 2022-02-11 3:29 pm Sale | 2021-12-31 | 13G | Spok Holdings, Inc. SPOK | Renaissance Technologies LLC | 1,212,522 6.220% | -338,471 (-21.82%) | Filing History |
| 2022-02-10 08:37 am Sale | 2021-12-31 | 13G | Spok Holdings, Inc. SPOK | The Vanguard Group | 749,256 3.850% | -525,613 (-41.23%) | Filing History |
| 2022-02-08 3:52 pm Sale | 2022-02-14 | 13G | Spok Holdings, Inc. SPOK | DIMENSIONAL FUND ADVISORS LP | 1,309,236 6.700% | -226,766 (-14.76%) | Filing History |
| 2021-09-09 4:20 pm Sale | 2021-08-31 | 13G | Spok Holdings, Inc. SPOK | BlackRock Inc. BLK | 476,506 2.400% | -2,431,184 (-83.61%) | Filing History |
| 2021-08-30 5:14 pm Purchase | 2021-08-19 | 13D | Spok Holdings, Inc. SPOK | ACACIA RESEARCH CORP ACTG | 1,261,883 6.500% | 1,261,883 (New Position) | Filing History |
| 2021-02-12 3:41 pm Sale | 2021-02-16 | 13G | Spok Holdings, Inc. SPOK | DIMENSIONAL FUND ADVISORS LP | 1,536,002 8.100% | -57,835 (-3.63%) | Filing History |
| 2021-02-11 1:31 pm Purchase | 2020-12-31 | 13G | Spok Holdings, Inc. SPOK | Renaissance Technologies LLC | 1,550,993 8.130% | 84,109 (+5.73%) | Filing History |
| 2021-02-10 11:52 am Sale | 2020-12-31 | 13G | Spok Holdings, Inc. SPOK | The Vanguard Group | 1,274,869 6.680% | -83,311 (-6.13%) | Filing History |