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HSII

Heidrick & Struggles
HSII

Delisted

HSII was delisted on the 9th of December, 2025.

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157 hedge funds and large institutions have $457M invested in Heidrick & Struggles in 2023 Q3 according to their latest regulatory filings, with 16 funds opening new positions, 60 increasing their positions, 59 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

2% more repeat investments, than reductions

Existing positions increased: 60 | Existing positions reduced: 59

0.53% less ownership

Funds ownership: 91.64% → 91.11% (-0.53%)

2% less funds holding

Funds holding: 161 → 157 (-4)

6% less capital invested

Capital invested by funds: $486M → $457M (-$29.3M)

16% less first-time investments, than exits

New positions opened: 16 | Existing positions closed: 19

50% less funds holding in top 10

Funds holding in top 10: 2 → 1 (-1)

66% less call options, than puts

Call options by funds: $70K | Put options by funds: $208K

Holders
157
Holders Change
-4
Holders Change %
-2.48%
% of All Funds
2.49%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.02%
New
16
Increased
60
Reduced
59
Closed
19
Calls
$70K
Puts
$208K
Net Calls
-$138K
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
+$7.75M
2
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
+$3.47M
3
CI
CX Institutional
Indiana
+$3.34M
4
Wellington Management Group
Wellington Management Group
Massachusetts
+$3.07M
5
JP Morgan Chase
JP Morgan Chase
New York
+$798K

Top Sellers

Rank Fund Capital Flow
1
S2L
Sparta 24 Ltd
Israel
-$4.67M
2
BlackRock
BlackRock
New York
-$4.26M
3
Pacer Advisors
Pacer Advisors
Pennsylvania
-$3.02M
4
Acadian Asset Management
Acadian Asset Management
Massachusetts
-$1.98M
5
AQR Capital Management
AQR Capital Management
Connecticut
-$1.94M
Name Holding Trade Value Shares
Change 		Change in
Stake
AQR Capital Management
26
AQR Capital Management
Connecticut
$4.44M -$1.94M -72,469 -29%
Acadian Asset Management
27
Acadian Asset Management
Massachusetts
$4.24M -$1.98M -73,928 -30%
Citadel Advisors
28
Citadel Advisors
Florida
$4.24M -$922K -34,484 -17%
Invesco
29
Invesco
Georgia
$3.98M +$147K +5,495 +4%
EF
30
Empowered Funds
Pennsylvania
$3.76M +$754K +28,196 +23%
Franklin Resources
31
Franklin Resources
California
$3.2M -$451K -16,877 -12%
CI
32
CX Institutional
Indiana
$3.13M +$3.34M +124,995 New
Boston Partners
33
Boston Partners
Massachusetts
$3.08M -$444K -16,590 -12%
D.E. Shaw & Co
34
D.E. Shaw & Co
New York
$3.06M +$112K +4,179 +4%
First Eagle Investment Management
35
First Eagle Investment Management
New York
$3.01M +$216K +8,078 +7%
Allianz Asset Management
36
Allianz Asset Management
Germany
$2.96M +$34.4K +1,286 +1%
CEI
37
Clark Estates Inc
New York
$2.96M – – –
BCM
38
Bridgeway Capital Management
Texas
$2.96M +$110K +4,108 +4%
Wellington Management Group
39
Wellington Management Group
Massachusetts
$2.87M +$3.07M +114,700 New
Principal Financial Group
40
Principal Financial Group
Iowa
$2.81M -$116K -4,350 -4%
Robeco Institutional Asset Management
41
Robeco Institutional Asset Management
Netherlands
$2.73M -$181K -6,769 -6%
SEI Investments
42
SEI Investments
Pennsylvania
$2.43M -$403K -15,061 -13%
Two Sigma Advisers
43
Two Sigma Advisers
New York
$1.72M +$2.67K +100 +0.1%
Two Sigma Investments
44
Two Sigma Investments
New York
$1.7M +$528K +19,757 +41%
HIM
45
Hillsdale Investment Management
Ontario, Canada
$1.68M -$1.71M -63,900 -49%
RhumbLine Advisers
46
RhumbLine Advisers
Massachusetts
$1.66M -$23.2K -868 -1%
Legal & General Group
47
Legal & General Group
United Kingdom
$1.49M +$98.3K +3,676 +7%
BGIM
48
Brandywine Global Investment Management
Pennsylvania
$1.49M +$102K +3,801 +7%
MAM
49
Martingale Asset Management
Massachusetts
$1.47M +$18.7K +700 +1%
Russell Investments Group
50
Russell Investments Group
United Kingdom
$1.28M +$477K +17,855 +54%
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HSII Hedge Fund Activity: Q3 2023 in Review

157 of the 6,301 institutional investors tracked by Wall St. Rank reported a position in Heidrick & Struggles (HSII) for Q3 2023, worth a combined $457M — down 6% from $486M a quarter earlier.

Sellers outnumbered buyers: 19 funds closed out of HSII and 16 opened new positions — a net loss of 3 holders — while 59 trimmed existing stakes and 60 added.

The largest buyer was Millennium Management, adding an estimated $7.75M. The largest seller was Sparta 24 Ltd, exiting entirely with an estimated $4.67M sold.

  • 157 institutional investors held Heidrick & Struggles (HSII) as of Q3 2023, down from 161 in Q2 2023.
  • Funds reported $457M of Heidrick & Struggles stock for Q3 2023, down 6% quarter-over-quarter.
  • 16 funds opened new Heidrick & Struggles positions in Q3 2023 and 19 closed out, a net change of -3 holders.
  • The largest Heidrick & Struggles buyer in Q3 2023 was Millennium Management, an estimated $7.75M added.
  • The largest Heidrick & Struggles seller in Q3 2023 was Sparta 24 Ltd, an estimated $4.67M sold.

Based on aggregated 13F filings for Q3 2023.