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 Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. 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 Filings Shares, Excl. Options Value, Excl. Options
2025 Q4 2 1.03 k $35.6 k
2025 Q3 218 20.0 M $997 M
2025 Q2 212 19.8 M $905 M
2025 Q1 215 19.7 M $846 M
2024 Q4 198 19.9 M $881 M
2024 Q3 188 19.1 M $740 M
2024 Q2 179 19.1 M $603 M
2024 Q1 185 19.1 M $643 M
2023 Q4 182 19.1 M $564 M
2023 Q3 163 18.3 M $457 M
2023 Q2 166 18.4 M $486 M
2023 Q1 180 18.2 M $553 M
2022 Q4 178 19.4 M $542 M
2022 Q3 175 18.0 M $468 M
2022 Q2 176 18.1 M $585 M
2022 Q1 179 18.0 M $713 M
2021 Q4 197 18.2 M $795 M
2021 Q3 181 18.2 M $812 M
2021 Q2 160 17.9 M $798 M
2021 Q1 154 17.6 M $629 M
2020 Q4 150 19.4 M $571 M
2020 Q3 135 17.8 M $349 M
2020 Q2 154 17.5 M $378 M
2020 Q1 144 18.0 M $403 M
2019 Q4 168 18.2 M $591 M
2019 Q3 162 17.5 M $477 M
2019 Q2 176 17.8 M $538 M
2019 Q1 191 17.6 M $675 M
2018 Q4 180 17.8 M $556 M
2018 Q3 187 18.0 M $609 M
2018 Q2 171 17.1 M $597 M
2018 Q1 158 16.2 M $506 M
2017 Q4 139 15.8 M $387 M
2017 Q3 117 15.5 M $329 M
2017 Q2 116 15.8 M $344 M
2017 Q1 118 15.6 M $411 M
2016 Q4 122 16.2 M $390 M
2016 Q3 128 16.0 M $297 M
2016 Q2 128 16.3 M $275 M
2016 Q1 138 16.6 M $392 M
2015 Q4 146 16.5 M $449 M
2015 Q3 125 15.9 M $309 M
2015 Q2 128 16.0 M $416 M
2015 Q1 121 15.5 M $383 M
2014 Q4 123 15.4 M $354 M
2014 Q3 122 14.8 M $304 M
2014 Q2 109 13.8 M $255 M
2014 Q1 101 13.6 M $273 M