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Spok Holdings
SPOK

143 hedge funds and large institutions have $198M invested in Spok Holdings in 2025 Q3 according to their latest regulatory filings, with 25 funds opening new positions, 55 increasing their positions, 37 reducing their positions, and 12 closing their positions.

New
Increased
Maintained
Reduced
Closed

108% more first-time investments, than exits

New positions opened: 25 | Existing positions closed: 12

49% more repeat investments, than reductions

Existing positions increased: 55 | Existing positions reduced: 37

10% more funds holding

Funds holding: 130 → 143 (+13)

2.22% more ownership

Funds ownership: 53.44% → 55.65% (+2.2%)

2% more capital invested

Capital invested by funds: $194M → $198M (+$3.32M)

69% less call options, than puts

Call options by funds: $302K | Put options by funds: $964K

Holders
143
Holders Change
+13
Holders Change %
+10%
% of All Funds
1.88%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
25
Increased
55
Reduced
37
Closed
12
Calls
$302K
Puts
$964K
Net Calls
-$662K
Net Calls Change
-$96K

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$3.78M
2
Renaissance Technologies
Renaissance Technologies
New York
+$2.06M
3
Geode Capital Management
Geode Capital Management
Massachusetts
+$1.48M
4
Allspring Global Investments
Allspring Global Investments
North Carolina
+$1.32M
5
First Trust Advisors
First Trust Advisors
Illinois
+$1.13M

Top Sellers

Rank Fund Capital Flow
1
PCM
Prelude Capital Management
New York
-$2.62M
2
Goldman Sachs
Goldman Sachs
New York
-$2.38M
3
JP Morgan Chase
JP Morgan Chase
New York
-$1.95M
4
HighTower Advisors
HighTower Advisors
Illinois
-$797K
5
Citadel Advisors
Citadel Advisors
Florida
-$749K
Name Holding Trade Value Shares
Change 		Change in
Stake
HIMS
101
Hager Investment Management Services
New Hampshire
$34.5K +$8.9K +500 +33%
PA
102
Parallel Advisors
California
$31K +$24.1K +1,353 +305%
S
103
SignatureFD
Georgia
$27.7K +$3.27K +184 +13%
Canada Life
104
Canada Life
Manitoba, Canada
$25K -$89 -5 -0.3%
SCM
105
Sterling Capital Management
North Carolina
$24.3K +$15.2K +856 +156%
QCG
106
Quadrant Capital Group
Ohio
$22.4K +$23.1K +1,296 New
California State Teachers Retirement System (CalSTRS)
107
California State Teachers Retirement System (CalSTRS)
California
$21.9K +$22.6K +1,269 New
RWM
108
RMG Wealth Management
Wisconsin
$21K – – –
Royal Bank of Canada
109
Royal Bank of Canada
Ontario, Canada
$19K -$372K -20,898 -95%
TRCT
110
Tower Research Capital (TRC)
New York
$18.9K -$29.9K -1,679 -61%
AAP
111
Arax Advisory Partners
Colorado
$17.1K +$15.4K +864 +680%
MFC
112
Mechanics Financial Corp
Ohio
$14K – – –
SOADOR
113
State of Alaska Department of Revenue
Alaska
$11K +$11.6K +653 New
GI
114
GAMMA Investing
California
$10.9K +$3.79K +213 +51%
AB
115
Amalgamated Bank
New York
$10K – – –
BONH
116
Bank of New Hampshire
New Hampshire
$9.83K – – –
Jones Financial Companies
117
Jones Financial Companies
Missouri
$8.42K -$569 -32 -6%
C
118
Covestor
United Kingdom
$8K -$4.16K -234 -34%
Simplex Trading
119
Simplex Trading
Illinois
$8K +$8.69K +488 New
HI
120
Harbour Investments
Wisconsin
$7.85K – – –
NA
121
NewEdge Advisors
Louisiana
$7.75K +$7.99K +449 New
PNC Financial Services Group
122
PNC Financial Services Group
Pennsylvania
$6.66K – – –
FFA
123
Farther Finance Advisors
California
$5.11K +$3.72K +209 +240%
Optiver Holding
124
Optiver Holding
Netherlands
$4.59K +$4.73K +266 New
PAS
125
Point72 Asia (Singapore)
Singapore
$4.4K +$4.54K +255 New
3 4
5
6 7

SPOK Hedge Fund Activity: Q3 2025 in Review

143 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in Spok Holdings (SPOK) for Q3 2025, worth a combined $198M — up 1.7% from $194M a quarter earlier.

Buyers outnumbered sellers: 25 funds opened new SPOK positions and 12 closed out — a net gain of 13 holders — while 55 added to existing stakes and 37 trimmed.

The largest buyer was BlackRock, adding an estimated $3.78M. The largest seller was Prelude Capital Management, exiting entirely with an estimated $2.62M sold.

  • 143 institutional investors held Spok Holdings (SPOK) as of Q3 2025, up from 130 in Q2 2025.
  • Funds reported $198M of Spok Holdings stock for Q3 2025, up 1.7% quarter-over-quarter.
  • 25 funds opened new Spok Holdings positions in Q3 2025 and 12 closed out, a net change of +13 holders.
  • The largest Spok Holdings buyer in Q3 2025 was BlackRock, an estimated $3.78M added.
  • The largest Spok Holdings seller in Q3 2025 was Prelude Capital Management, an estimated $2.62M sold.

Based on aggregated 13F filings for Q3 2025.