ECOVYST INC (ECVT) Top Institutional Shareholders
ECOVYST INC (ECVT) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $1.40B in ECVT holdings during the latest filing period.
Rubric Capital Management Lp is currently the largest disclosed institutional shareholder of ECVT tracked by InsiderSet, reporting ownership valued at approximately $117.49M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $117.67M, representing an estimated gain of +0.16% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 53% of the total disclosed ECVT value among the investors covered in this analysis. Major shareholders include Rubric Capital Management Lp, Blackrock, Inc., Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in ECOVYST INC (ECVT).
This page ranks the largest institutional ECVT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
193
Total Reported Value
$1.40B
Largest Holder
Rubric Capital Management Lp
Largest Position
$117.49M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
190
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Rubric Capital Management Lp | 1.44% | 9,136,067 | $117,489,822 | $117,672,543 | +$182,721 | +0.16% | |
| Blackrock, Inc. | 0.00% | 8,734,220 | $112,322,069 | $112,496,754 | +$174,685 | +0.16% | |
| Dimensional Fund Advisors Lp | 0.02% | 6,498,654 | $83,572,691 | $83,702,664 | +$129,973 | +0.16% | |
| Hotchkis & Wiley Capital Management Llc | 0.22% | 5,413,862 | $69,622,265 | $69,730,543 | +$108,278 | +0.16% | |
| Vanguard Portfolio Management Llc | 0.00% | 5,244,406 | $67,443,061 | $67,547,949 | +$104,888 | +0.16% | |
| Vanguard Capital Management Llc | 0.00% | 4,977,580 | $64,011,679 | $64,111,230 | +$99,551 | +0.16% | |
| Brown Advisory Inc | 0.10% | 4,842,174 | $62,270,363 | $62,367,201 | +$96,838 | +0.16% | |
| Arrowstreet Capital, Limited Partnership | 0.03% | 4,829,034 | $62,101,377 | $62,197,958 | +$96,581 | +0.16% | |
| Fmr Llc | 0.00% | 4,467,425 | $57,451,086 | $57,540,434 | +$89,348 | +0.16% | |
| Allspring Global Investments Holdings, Llc | 0.08% | 3,798,389 | $49,834,863 | $48,923,250 | -$911,613 | -1.83% | |
| Brightline Capital Management, Llc | 10.65% | 2,800,000 | $36,008,000 | $36,064,000 | +$56,000 | +0.16% | |
| Geode Capital Management, Llc | 0.00% | 2,763,454 | $35,544,083 | $35,593,288 | +$49,205 | +0.14% | |
| State Street Corp | 0.00% | 2,577,391 | $33,145,248 | $33,196,796 | +$51,548 | +0.16% | |
| Oaktree Capital Management | Howard Marks | 0.55% | 2,393,791 | $30,784,152 | $30,832,028 | +$47,876 | +0.16% |
| First Wilshire Securities Management Inc | 6.36% | 2,196,784 | $28,250,642 | $28,294,578 | +$43,936 | +0.16% | |
| Ameriprise Financial Inc | 0.01% | 2,131,663 | $27,413,186 | $27,455,819 | +$42,633 | +0.16% | |
| Charles Schwab Investment Management Inc | 0.00% | 2,126,914 | $27,352,114 | $27,394,652 | +$42,538 | +0.16% | |
| American Century Companies Inc | 0.01% | 2,025,270 | $26,044,972 | $26,085,478 | +$40,506 | +0.16% | |
| William Blair Investment Management, Llc | 0.08% | 1,864,621 | $23,979,026 | $24,016,318 | +$37,292 | +0.16% | |
| Goldman Sachs Group Inc | 0.00% | 1,406,885 | $18,092,541 | $18,120,679 | +$28,138 | +0.16% | |
| Owls Nest Partners Ia, Llc | 6.19% | 1,374,674 | $17,678,308 | $17,705,801 | +$27,493 | +0.16% | |
| Driehaus Capital Management Llc | 0.13% | 1,356,131 | $17,439,845 | $17,466,967 | +$27,122 | +0.16% | |
| Loomis Sayles & Co L P | 0.02% | 1,225,131 | $15,755,185 | $15,779,687 | +$24,502 | +0.16% | |
| Bank Of America Corp | 0.00% | 1,106,009 | $14,223,275 | $14,245,396 | +$22,121 | +0.16% | |
| Point72 Asset Management, L.P. | 0.02% | 1,049,527 | $13,496,917 | $13,517,908 | +$20,991 | +0.16% | |
| Needham Investment Management Llc | 0.67% | 1,020,000 | $13,117,200 | $13,137,600 | +$20,400 | +0.16% | |
| Northern Trust Corp | 0.00% | 958,764 | $12,329,706 | $12,348,880 | +$19,174 | +0.16% | |
| Sei Investments Co | 0.01% | 938,031 | $12,063,082 | $12,081,839 | +$18,757 | +0.16% | |
| Bridgeway Capital Management, Llc | 0.22% | 834,793 | $10,735,438 | $10,752,134 | +$16,696 | +0.16% | |
| Brigade Capital Management, Lp | 7.41% | 817,255 | $10,509,899 | $10,526,244 | +$16,345 | +0.16% | |
| Congruence Capital, Llc | 3.52% | 815,443 | $10,486,597 | $10,502,906 | +$16,309 | +0.16% | |
| Allianz Asset Management Gmbh | 0.01% | 805,698 | $10,361,276 | $10,377,390 | +$16,114 | +0.16% | |
| Shapiro Capital Management Llc | 0.62% | 766,762 | $9,860,559 | $9,875,895 | +$15,336 | +0.16% | |
| Vanguard Fiduciary Trust Co | 0.00% | 731,724 | $9,409,971 | $9,424,605 | +$14,634 | +0.16% | |
| Morgan Stanley | 0.00% | 722,625 | $9,292,967 | $9,307,410 | +$14,443 | +0.16% | |
| Citadel Advisors Llc | 0.01% | 649,778 | $8,356,145 | $8,369,141 | +$12,996 | +0.16% | |
| Empowered Funds, Llc | 0.05% | 566,680 | $7,287,504 | $7,298,838 | +$11,334 | +0.16% | |
| Ballast Asset Management, Lp | 3.17% | 554,625 | $7,132,478 | $7,143,570 | +$11,092 | +0.16% | |
| Dayah Capital Llc | 1.89% | 470,000 | $6,044,200 | $6,053,600 | +$9,400 | +0.16% | |
| Ubs Group Ag | 0.00% | 433,465 | $5,574,360 | $5,583,029 | +$8,669 | +0.16% | |
| D. E. Shaw & Co., Inc. | 0.00% | 422,463 | $5,432,874 | $5,441,323 | +$8,449 | +0.16% | |
| Invenomic Capital Management Lp | 0.25% | 418,265 | $5,378,888 | $5,387,253 | +$8,365 | +0.16% | |
| Kestrel Investment Management Corp | 3.11% | 405,400 | $5,213,444 | $5,221,552 | +$8,108 | +0.16% | |
| Jane Street Group, Llc | 0.01% | 392,193 | $5,043,602 | $5,051,446 | +$7,844 | +0.16% | |
| Summittx Capital, L.P. | 0.16% | 390,106 | $5,016,763 | $5,024,565 | +$7,802 | +0.16% | |
| Bank Of New York Mellon Corp | 0.00% | 382,233 | $4,915,516 | $4,923,161 | +$7,645 | +0.16% | |
| Invesco Ltd. | 0.00% | 377,455 | $4,854,071 | $4,861,620 | +$7,549 | +0.16% | |
| Castleknight Management Lp | 0.22% | 367,148 | $4,721,523 | $4,728,866 | +$7,343 | +0.16% | |
| State Of Wisconsin Investment Board | 0.01% | 338,599 | $4,354,383 | $4,361,155 | +$6,772 | +0.16% | |
| Tiptree Advisors, Llc | 2.43% | 325,000 | $4,179,500 | $4,186,000 | +$6,500 | +0.16% |
Frequently asked questions about ECVT
Who owns the most ECVT stock?
The largest holders of ECVT are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ECOVYST INC (ECVT).
Is ECVT widely held by superinvestors?
Many widely followed stocks like ECVT appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ECVT is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.