We are live on ! Find out more
SPOK icon

Spok Holdings
SPOK

124 hedge funds and large institutions have $174M invested in Spok Holdings in 2025 Q1 according to their latest regulatory filings, with 22 funds opening new positions, 41 increasing their positions, 39 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed

1,627% more call options, than puts

Call options by funds: $898K | Put options by funds: $52K

69% more first-time investments, than exits

New positions opened: 22 | Existing positions closed: 13

8% more funds holding

Funds holding: 115 → 124 (+9)

7% more capital invested

Capital invested by funds: $162M → $174M (+$11.4M)

1.86% more ownership

Funds ownership: 49.83% → 51.69% (+1.9%)

5% more repeat investments, than reductions

Existing positions increased: 41 | Existing positions reduced: 39

Holders
124
Holders Change
+9
Holders Change %
+7.83%
% of All Funds
1.66%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
22
Increased
41
Reduced
39
Closed
13
Calls
$898K
Puts
$52K
Net Calls
+$846K
Net Calls Change
+$358K

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$2.61M
2
Goldman Sachs
Goldman Sachs
New York
+$2.12M
3
Citadel Advisors
Citadel Advisors
Florida
+$2.01M
4
Two Sigma Investments
Two Sigma Investments
New York
+$1.04M
5
Marshall Wace
Marshall Wace
United Kingdom
+$866K

Top Sellers

Rank Fund Capital Flow
1
HighTower Advisors
HighTower Advisors
Illinois
-$2.34M
2
TC
Truvestments Capital
Florida
-$1.77M
3
MF
Magnetar Financial
Illinois
-$647K
4
Prudential Financial
Prudential Financial
New Jersey
-$487K
5
Vanguard Group
Vanguard Group
Pennsylvania
-$453K
Name Holding Trade Value Shares
Change 		Change in
Stake
BlackRock
1
BlackRock
New York
$25.4M +$2.61M +160,277 +12%
Vanguard Group
2
Vanguard Group
Pennsylvania
$16.8M -$453K -27,850 -3%
Renaissance Technologies
3
Renaissance Technologies
New York
$16.8M +$712K +43,800 +4%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$11.5M -$135K -8,285 -1%
HighTower Advisors
5
HighTower Advisors
Illinois
$8.59M -$2.34M -144,062 -22%
Goldman Sachs
6
Goldman Sachs
New York
$8.57M +$2.12M +130,478 +33%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$8.03M -$424K -26,057 -5%
State Street
8
State Street
Massachusetts
$7.19M -$21.4K -1,314 -0.3%
Acadian Asset Management
9
Acadian Asset Management
Massachusetts
$6.2M +$119K +7,301 +2%
FP
10
Foundry Partners
Minnesota
$5.92M -$34.4K -2,115 -0.6%
Northern Trust
11
Northern Trust
Illinois
$3.56M +$158K +9,714 +5%
UIC
12
Uniplan Investment Counsel
Wisconsin
$3.38M +$28.4K +1,745 +0.9%
JP Morgan Chase
13
JP Morgan Chase
New York
$3.27M -$236K -14,513 -7%
Bank of New York Mellon
14
Bank of New York Mellon
New York
$3.13M -$161K -9,871 -5%
Morgan Stanley
15
Morgan Stanley
New York
$2.77M +$164K +10,116 +6%
Citadel Advisors
16
Citadel Advisors
Florida
$2.54M +$2.01M +123,508 +401%
PCM
17
Prelude Capital Management
New York
$2.51M +$61.8K +3,800 +3%
TI
18
Trexquant Investment
Connecticut
$2.36M +$600K +36,879 +35%
Connor, Clark & Lunn Investment Management (CC&L)
19
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$2.31M +$574K +35,321 +34%
Qube Research & Technologies (QRT)
20
Qube Research & Technologies (QRT)
United Kingdom
$2.06M +$865K +53,208 +74%
NSIM
21
North Star Investment Management
Illinois
$2.01M – – –
Allspring Global Investments
22
Allspring Global Investments
North Carolina
$1.7M -$128K -7,890 -7%
Jacobs Levy Equity Management
23
Jacobs Levy Equity Management
New Jersey
$1.54M +$252K +15,484 +20%
Prudential Financial
24
Prudential Financial
New Jersey
$1.38M -$487K -29,980 -26%
N
25
Nuveen
North Carolina
$1.34M – – –
1
2 3 4 5

SPOK Hedge Fund Activity: Q1 2025 in Review

124 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Spok Holdings (SPOK) for Q1 2025, worth a combined $174M — up 7% from $162M a quarter earlier.

Buyers outnumbered sellers: 22 funds opened new SPOK positions and 13 closed out — a net gain of 9 holders — while 41 added to existing stakes and 39 trimmed.

The largest buyer was BlackRock, adding an estimated $2.61M. The largest seller was HighTower Advisors, cutting an estimated $2.34M.

  • 124 institutional investors held Spok Holdings (SPOK) as of Q1 2025, up from 115 in Q4 2024.
  • Funds reported $174M of Spok Holdings stock for Q1 2025, up 7% quarter-over-quarter.
  • 22 funds opened new Spok Holdings positions in Q1 2025 and 13 closed out, a net change of +9 holders.
  • The largest Spok Holdings buyer in Q1 2025 was BlackRock, an estimated $2.61M added.
  • The largest Spok Holdings seller in Q1 2025 was HighTower Advisors, an estimated $2.34M sold.

Based on aggregated 13F filings for Q1 2025.