Ownership history in MARSHALL WACE, LLP · 12 quarters on record
This page tracks every 13F SEC filing in which MARSHALL WACE, LLP reported a position in SPOK HOLDINGS IN (SPOK). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q3 | ADDED | 34,084 | +1,009 | +3.1% | 0.00% | $588K | $16.40 |
| 2025 Q2 | REDUCED | 33,075 | -20,182 | -37.9% | 0.00% | $585K | $16.52 |
| 2025 Q1 | REDUCED | 53,257 | -128,618 | -70.7% | 0.00% | $876K | $15.06 |
| 2023 Q1 | ADDED | 181,875 | +109,622 | +151.7% | 0.00% | $1.8M | $7.88 |
| 2022 Q4 | ADDED | 72,253 | +17,044 | +30.9% | 0.00% | $592K | $6.18 |
| 2022 Q2 | ADDED | 55,209 | +41,559 | +304.5% | 0.00% | $348K | $4.39 |
| 2022 Q1 | REDUCED | 13,650 | -60,155 | -81.5% | 0.00% | $109K | $5.33 |
| 2021 Q4 | REDUCED | 73,805 | -89,549 | -54.8% | 0.00% | $689K | $6.01 |
| 2021 Q3 | ADDED | 163,354 | +150,401 | +1161.1% | 0.01% | $1.7M | $6.51 |
| 2021 Q2 | REDUCED | 12,953 | -9,231 | -41.6% | 0.00% | $125K | $6.02 |
As of 2025 Q4 — sorted by position size