Ecovyst Inc.

Historical 13F Holders

Symbol
ECVT
CUSIP
27923Q109
All holders as of
Q2 2026
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. Every filing for 27923Q109 since 12/18/2024, newest first.

Filer % of Class Filed
Vanguard Portfolio Management LLC 13G 5.7% 7/31/2026
Event 6/30/2026
Dimensional Fund Advisors LP 13G/A Amendment 1 6.0% 7/14/2026
Event 6/30/2026
Hotchkis & Wiley Capital Management LLC 13G/A Amendment 4 4.9% 5/8/2026
Event 3/31/2026
Vanguard Capital Management LLC 13G 5.3% 4/29/2026
Event 3/31/2026
BlackRock, Inc. 13G/A Amendment 2 7.7% 4/24/2026
Event 3/31/2026
Vanguard Group Inc 13G/A Amendment 2 0% 3/26/2026
Event 3/13/2026
Hotchkis & Wiley Capital Management LLC 13G/A Amendment 3 7.7% 11/14/2025
Event 9/30/2025
Rubric Capital Management LP 13G
9.1% 11/14/2025
Event 9/30/2025
Hotchkis & Wiley Capital Management LLC 13G/A Amendment 2 9.6% 8/13/2025
Event 6/30/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 7 213 k $2.10 M
2026 Q2 210 111 M $1.49 B
2026 Q1 204 112 M $1.44 B
2025 Q4 163 117 M $1.14 B
2025 Q3 170 118 M $1.03 B
2025 Q2 182 119 M $977 M
2025 Q1 168 107 M $663 M
2024 Q4 172 103 M $772 M
2024 Q3 163 107 M $733 M
2024 Q2 157 108 M $961 M
2024 Q1 152 106 M $1.18 B
2023 Q4 167 104 M $1.01 B
2023 Q3 154 103 M $1.01 B
2023 Q2 154 102 M $1.17 B
2023 Q1 171 87.1 M $962 M
2022 Q4 177 89.2 M $791 M
2022 Q3 145 96.6 M $816 M
2022 Q2 130 104 M $1.02 B
2022 Q1 121 104 M $1.20 B
2021 Q4 125 103 M $1.06 B
2021 Q3 108 46.7 M $545 M
2021 Q2 1 149 k $2.28 M