- Quarter end
- 31 Mar 2025
- the date the book describes
- Filed
- 21 May 2025
- up to 45 days after the quarter end
- Managers listing it
- 1
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q4 2024 and Q1 2025; 1 listed it in both
- Shares listed
- 376,932
- combined, among listed positions
- Reported value
- $6.2m
- combined, at the quarter end
Among the 95 comparable managers: 1 buyer (opened or added shares) and 0 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +7,301.
Managers listing SPOK in Q1 2025
1 of 1 holder
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Acadian Asset Management LLC | 376,932 | $6.2m | under 0.1% | Added | +7,301 | 21 May 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Acadian Asset Management LLCexisting position · 376,932 shares now+7,301
Reductions
No reduction among listed positions.
New positions and exits
New (0)
No new position among listed positions.
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q3 2014 | 1 | $23m | n.a. | n.a. |
| Q4 2014 | 1 | $30m | n.a. | n.a. |
| Q1 2015 | 1 | $34m | n.a. | n.a. |
| Q2 2015 | 1 | $29m | n.a. | n.a. |
| Q3 2015 | 1 | $28m | n.a. | n.a. |
| Q4 2015 | 1 | $31m | n.a. | n.a. |
| Q1 2016 | 1 | $29m | n.a. | n.a. |
| Q2 2016 | 1 | $31m | n.a. | n.a. |
| Q3 2016 | 1 | $29m | n.a. | n.a. |
| Q3 2017 | 1 | $204k | n.a. | n.a. |
| Q4 2017 | 1 | $579k | n.a. | n.a. |
| Q1 2018 | 1 | $372k | n.a. | n.a. |
| Q2 2018 | 1 | $259k | n.a. | n.a. |
| Q3 2018 | 1 | $210k | n.a. | n.a. |
| Q4 2018 | 1 | $134k | n.a. | n.a. |
| Q2 2019 | 1 | $167k | n.a. | n.a. |
| Q3 2019 | 1 | $180k | n.a. | n.a. |
| Q3 2023 | 1 | $450k | n.a. | n.a. |
| Q4 2023 | 1 | $5.4m | 1 | 0 |
| Q3 2024 | 1 | $6.3m | 1 | 0 |
| Q4 2024 | 1 | $5.9m | 0 | 1 |
| Q1 2025 | 1 | $6.2m | 1 | 0 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
SPOK and NFLX →SPOK and TMUS →SPOK and CMCSA →Choose a stock to compare with SPOK →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own SPOK, latest filings →Back to the 13F Explorer →