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STATE OF WISCONSIN INVESTMENT BOARD

Position in ECVT — Ecovyst Inc.

CIK 854157 MADISON, WI

Position in ECVT

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,088,549
-$2,265,834 QoQ
Shares Held
167,755
-50.5% QoQ
Ownership
0.153%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#71
of 208 holders
Holding Since
Mar 2020
21 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ECVT Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Jun 30, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $394,179,349 across 40 Specialty Chemicals names. ECVT ranks #19 (0.5% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ECVT

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,088,549 167,755
2026-03-31 $4,354,383 338,599
2025-12-31 $5,209,558 535,412
2025-09-30 $4,751,993 542,465
2025-06-30 $4,590,463 557,772
2025-03-31 $3,474,957 560,477
2024-12-31 $4,174,335 546,379
2024-09-30 $714,989 104,378
2024-06-30 $577,775 64,412
2023-09-30 $125,410 12,745
2023-03-31 $110,610 10,010
2022-09-30 $98,224 11,638
2022-06-30 $146,548 14,878
2022-03-31 $9,834,092 850,700
2021-12-31 $8,711,168 850,700
2021-09-30 $6,421,162 550,700
2021-06-30 PQG 550,700
2020-12-31 PQG 550,700
2020-09-30 PQG 619,200
2020-06-30 PQG 619,200
2020-03-31 PQG 397,700