WALLACE MICHAEL W (CIK 1070123) reported 12 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-04). Recent activity: Buy SPOK (30,525 shares), Buy SPOK (9,157 shares), Sell SPOK (17,897 shares), Buy SPOK (22,865 shares), Sell SPOK (10,985 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-04 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Buy | 30,525 | $370,574 |
| 2026-03-04 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Buy | 9,157 | $111,166 |
| 2026-03-04 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Sell | 17,897 | $217,270 |
| 2026-01-07 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Buy | 22,865 | $301,589 |
| 2026-01-07 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Sell | 10,985 | $144,892 |
| 2025-08-26 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Sell | 10,806 | $193,103 |
| 2025-08-05 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Sell | 10,000 | $184,900 |
| 2025-05-08 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Sell | 6,000 | $99,180 |
| 2025-03-07 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Buy | 34,682 | $584,392 |
| 2025-03-07 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Buy | 10,404 | $175,307 |
| 2025-03-07 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Sell | 20,334 | $342,628 |
| 2025-03-05 | Spok Holdings, Inc (SPOK) | Chief Operating Officer | Sell | 10,000 | $165,300 |
Source: SEC Form 4 filings · as of 2026-03-04