SPOK HLDGS INC (SPOK) — institutional ownership
142 funds reported holding SPOK HLDGS INC in their latest 13F filings, worth $136M in total (CUSIP 84863T106).
Largest holders
- BlackRock, Inc. (BLK) — $17.6M
- VANGUARD GROUP INC — $16.2M
- RENAISSANCE TECHNOLOGIES LLC — $11.8M
- VANGUARD CAPITAL MANAGEMENT LLC — $8.93M
- DIMENSIONAL FUND ADVISORS LP — $7.35M
- GEODE CAPITAL MANAGEMENT, LLC — $6.10M
- Foundry Partners, LLC — $5.92M
- STATE STREET CORP (STT, STT-PG) — $4.83M
- HighTower Advisors, LLC — $3.48M
- Qube Research & Technologies Ltd — $2.95M
Famous investors holding it
- Renaissance Technologies portfolio (Renaissance Technologies)
- Ken Griffin portfolio (Citadel Advisors)
- D. E. Shaw portfolio (D. E. Shaw & Co.)
- Two Sigma portfolio (Two Sigma Investments)
- Izzy Englander portfolio (Millennium Management)