The Tip Desk

ECOVYST INC holding history

As of Nov. 6, 2026 (UTC)

← WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC portfolio · COM · CUSIP 27923Q109 · SH

Quarter-end history; absent and withheld figures are not zero
March 31, 20253,461,316$21,460,1590.06%Withheld — Comparison unavailable: Comparable change withheld pending corporate-action reviewMay 9, 2025
June 30, 20253,196,902$26,310,5030.07%Withheld — Comparison unavailable: Comparable change withheld pending corporate-action reviewJuly 29, 2025
Sept. 30, 20253,014,160$26,404,0420.07%Withheld — Comparison unavailable: Comparable change withheld pending corporate-action reviewNov. 12, 2025
Dec. 31, 20252,728,749$26,550,7280.07%Withheld — Comparison unavailable: Comparable change withheld pending corporate-action reviewFeb. 9, 2026
March 31, 20261,864,621$23,979,0260.08%Withheld — Comparison unavailable: Comparable change withheld pending corporate-action reviewMay 8, 2026
June 30, 2026860,439$10,712,4660.03%Withheld — Comparison unavailable: Comparable change withheld pending corporate-action reviewAug. 12, 2026

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Schedule 13G disclosures

No verified related disclosures are included in this freeze.

About reported holdings

13F reports quarter-end securities, excluding cash and shorts. Position changes do not establish trades, motives or returns; portfolio weights use disclosed 13F value.