Heidrick & Struggles Internatio

Historical 13F Holders

Symbol
HSII
CUSIP
422819102
All holders as of
Q4 2025
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Shares Held, Excluding Options
Total Filers

13D/G Filers

Each filer's latest filing for 422819102 since 12/18/2024, largest first.

Filer % of Class Filed
BlackRock, Inc. 13G/A 15.8% 4/30/2025
Event 3/31/2025
MAK Capital One L.L.C. 13D
5.8% 11/5/2025
Event 10/27/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (2)
Dimensional Fund Advisors LP 13G/A 0% 1/21/2026
Event 12/31/2025
Renaissance Technologies LLC 13G/A
0% 2/12/2026
Event 12/31/2025

13F Holders by Quarter

Period Filers Shares, Excl. Options Value, Excl. Options
2025 Q4 2 1.03 k $35.6 k
2025 Q3 214 20.0 M $997 M
2025 Q2 209 19.8 M $905 M
2025 Q1 208 19.7 M $846 M
2024 Q4 192 19.9 M $881 M
2024 Q3 183 19.1 M $740 M
2024 Q2 170 19.1 M $603 M
2024 Q1 177 19.1 M $643 M
2023 Q4 176 19.1 M $564 M
2023 Q3 160 18.3 M $457 M
2023 Q2 163 18.4 M $486 M
2023 Q1 174 18.3 M $555 M
2022 Q4 173 19.4 M $542 M
2022 Q3 174 18.0 M $468 M
2022 Q2 175 18.1 M $585 M
2022 Q1 178 18.0 M $713 M
2021 Q4 188 18.2 M $795 M
2021 Q3 176 18.2 M $812 M
2021 Q2 159 17.9 M $798 M
2021 Q1 151 17.6 M $629 M
2020 Q4 144 19.4 M $571 M
2020 Q3 131 17.8 M $349 M
2020 Q2 152 17.5 M $378 M
2020 Q1 141 18.0 M $403 M
2019 Q4 165 18.2 M $591 M
2019 Q3 157 17.5 M $477 M
2019 Q2 168 17.8 M $538 M
2019 Q1 185 17.6 M $675 M
2018 Q4 176 17.8 M $556 M
2018 Q3 179 18.0 M $609 M
2018 Q2 163 17.1 M $597 M
2018 Q1 154 16.2 M $506 M
2017 Q4 137 15.8 M $387 M
2017 Q3 113 15.5 M $329 M
2017 Q2 113 15.8 M $344 M
2017 Q1 113 15.6 M $411 M
2016 Q4 115 16.2 M $390 M
2016 Q3 124 16.0 M $297 M
2016 Q2 125 16.3 M $275 M
2016 Q1 135 16.6 M $392 M
2015 Q4 139 16.5 M $449 M
2015 Q3 122 15.9 M $309 M
2015 Q2 127 16.0 M $416 M
2015 Q1 118 15.5 M $383 M
2014 Q4 116 15.4 M $354 M
2014 Q3 114 14.8 M $304 M
2014 Q2 100 13.8 M $255 M
2014 Q1 96 13.6 M $273 M