Spok Holdings, INC Schedule 13G passive stakes
Filed when an investor crosses five percent without intending to seek control — the passive counterpart to a 13D.
NASDAQ
The Vanguard Group reports 0% beneficial ownership in Spok Holdings Inc following an internal realignment, with subsidiaries now reporting separately.
NASDAQ
Renaissance Technologies LLC and its parent company have disclosed a 5.13% beneficial ownership stake in Spok Holdings, Inc.
NASDAQ
The Vanguard Group has reported a passive beneficial ownership of 5.58% in Spok Holdings Inc, totaling 1,148,536 shares of common stock.
NASDAQ
The Vanguard Group has filed an amended Schedule 13G, reporting a 4.99% passive beneficial ownership stake in Spok Holdings Inc. as of March 31, 2025.