Public ownership evidence

Ecovyst Inc. (ECVT) Ownership Disclosures

Read ECVT insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Ecovyst Inc.: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-09-14
Trade date
2026-09-10
Reporting owners
Humble Patti A.
Code
P
Shares
24,875
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001708035-26-000099
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read ECVT fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read ECVT fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity

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2026-09-142026-09-10Humble Patti A.P24,875Not reported
2026-08-272026-08-24Bergman LaurieA43,353Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-26206,900$2,660,734None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-26224,400$2,793,780None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25122,443$1,524,415None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-251,524,415$122,443,000None
Empowered Funds, LLC2026-06-302026-08-18561,125$6,986,006None
Empowered Funds, LLC2026-06-302026-08-1814,240$177,288None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-185,222$65,014None
SEI INVESTMENTS CO2026-06-302026-08-15471,792$5,873,810None
SEI INVESTMENTS CO2026-06-302026-08-15725$9,030None
Aster Capital Management (DIFC) Ltd2026-06-302026-08-151,829$22,771None
Quarry LP2026-06-302026-08-15233$2,901None
Integrated Quantitative Investments LLC2026-06-302026-08-1526,021$323,961None
XTX Topco Ltd2026-06-302026-08-15192,763$2,399,899None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-151,898,885$23,641,118None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-151,898,885$23,641,118None
ExodusPoint Capital Management, LP2026-06-302026-08-15362,506$4,513,200None
Qube Research & Technologies Ltd2026-06-302026-08-151,663,145$20,706,155None
OSAIC HOLDINGS, INC.2026-06-302026-08-151,360$16,932None
Man Group plc2026-06-302026-08-15138,801$1,728,072None
Trexquant Investment LP2026-06-302026-08-15421,136$5,243,143None
MetLife Investment Management, LLC2026-06-302026-08-1566,057$822,410None
Engineers Gate Manager LP2026-06-302026-08-1543,902$546,580None
JANE STREET GROUP, LLC2026-06-302026-08-15122,331$1,523,021None
JANE STREET GROUP, LLC2026-06-302026-08-1580,869$1,006,819None
BTG Pactual Asset Management US LLC2026-06-302026-08-1531,678$394,391None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-1545,163$562,279None
Legal & General Group Plc2026-06-302026-08-1570,760$880,962None
Legal & General Group Plc2026-06-302026-08-1521,615$269,107None
Legal & General Group Plc2026-06-302026-08-1510,686$133,041None
HRT FINANCIAL LP2026-06-302026-08-15534,190$6,650,000None
Tiptree Advisors, LLC2026-06-302026-08-15400,000$4,980,000None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15285,700$3,556,965Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1519,554$243,447None
Apis Capital Advisors, LLC2026-06-302026-08-15540,000$6,723,000None
Gotham Asset Management, LLC2026-06-302026-08-15261,889$3,260,518None
BROWN ADVISORY INC2026-06-302026-08-154,459,937$55,526,213None
BROWN ADVISORY INC2026-06-302026-08-1573,578$916,046None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-1559,276$737,986None
VARCOV Co.2026-06-302026-08-15125,347$1,560,570None
TWINBEECH CAPITAL LP2026-06-302026-08-1563,067$785,184None
LAZARD ASSET MANAGEMENT LLC2026-06-302026-08-15288,194$3,588,015None
Allianz Asset Management GmbH2026-06-302026-08-15894,838$11,140,733None
Thrivent Financial for Lutherans2026-06-302026-08-15196,839$2,451,000None
Thrivent Financial for Lutherans2026-06-302026-08-15120,372$1,499,000None
AMERIPRISE FINANCIAL INC2026-06-302026-08-1515,804$196,760None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15101,820$1,267,659None
AMERIPRISE FINANCIAL INC2026-06-302026-08-152,111,880$26,292,909None
Freestone Grove Partners LP2026-06-302026-08-1528,502$354,850None
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC2026-06-302026-08-151,404,452$17,485,427None
MANGROVE PARTNERS IM, LLC2026-06-302026-08-1514,851$184,895None

90-day public filing window, up to 50 source positions.

VIRGINIA RETIREMENT SYSTEMS ET Al ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Empowered Funds, LLC ↗Empowered Funds, LLC ↗PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO ↗SEI INVESTMENTS CO ↗SEI INVESTMENTS CO ↗Aster Capital Management (DIFC) Ltd ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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