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Public ownership evidence

Acadian Asset Management Inc. (AAMI) Ownership Disclosures

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

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

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2026-08-062026-08-04Wiater ChristinaS244Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-08-04 and its public availability date is 2026-08-06. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001628280-26-053337 ↗SEC 0001628280-26-053337 ↗SEC 0001628280-26-053337 ↗

Recent Form 4 activity

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2026-08-062026-08-04Wiater ChristinaS244Not reported
2026-08-062026-08-03Wiater ChristinaS3Not reported
2026-08-062026-08-03Wiater ChristinaS17,389Not reported
2026-08-062026-08-03Wiater ChristinaS7,978Not reported

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

Recent institutional filing receipts

Inspect all 50 displayed rows: 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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Cornerstone Financial Management LLC2026-06-302026-08-2916$1,144None
Cornerstone Financial Management LLC2026-03-312026-08-2916$871None
Cornerstone Financial Management LLC2025-12-312026-08-2916$752None
Corient Private Wealth LP2026-06-302026-08-284,622$330,567None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2617,700$1,265,904None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2534,481$2,466,081None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,466,081$34,481,000None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-206,919$494,855None
Ensign Peak Advisors, Inc2026-03-312026-08-193,059$166,471None
Ensign Peak Advisors, Inc2025-12-312026-08-193,059$143,773None
Ensign Peak Advisors, Inc2025-09-302026-08-197,109$342,369None
Fulcrum Asset Management LLP2026-06-302026-08-1922,864$1,627,231None
Transamerica Financial Advisors, LLC2026-06-302026-08-182,357$168,617None
CAPSTONE INVESTMENT ADVISORS, LLC2026-06-302026-08-1811,165$798,521None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-18534$38,192None
EFG International AG2026-06-302026-08-1517$1,216None
EFG International AG2026-06-302026-08-1540,647$2,911,748None
Avantyr Capital Partners, LP2026-06-302026-08-15767,793$54,912,555None
SMA Capital LLC2026-06-302026-08-1517,500$1,251,600None
DARK FOREST CAPITAL MANAGEMENT LP2026-06-302026-08-1510,058$719,348None
SummitTX Capital, L.P.2026-06-302026-08-156,594$471,603None
SEI INVESTMENTS CO2026-06-302026-08-1529,186$2,087,383None
SEI INVESTMENTS CO2026-06-302026-08-157,182$513,460None
JPL Wealth Management, LLC2026-06-302026-08-155$358None
Basecamp Wealth Advisors LLC2026-06-302026-08-1549$3,504None
Quarry LP2026-06-302026-08-1552$3,719None
KINTRA WEALTH, LLC2026-06-302026-08-152,668$248,551None
XTX Topco Ltd2026-06-302026-08-1526,825$1,918,524None
Aquatic Capital Management LLC2026-06-302026-08-1531,941$2,284,420None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15403,342$28,847,020None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15403,342$28,847,020None
Qube Research & Technologies Ltd2026-06-302026-08-1555,830$3,992,962None
Neo Ivy Capital Management2026-06-302026-08-15394$28,178None
Diametric Capital, LP2026-06-302026-08-1527,813$1,989,185None
OSAIC HOLDINGS, INC.2026-06-302026-08-1528$2,003None
OSAIC HOLDINGS, INC.2026-06-302026-08-15687$49,226None
Squarepoint Ops LLC2026-06-302026-08-1529,242$2,091,388None
Trexquant Investment LP2026-06-302026-08-1562,669$4,482,087None
MetLife Investment Management, LLC2026-06-302026-08-1516,497$1,179,865None
Engineers Gate Manager LP2026-06-302026-08-1534,006$2,432,109None
JANE STREET GROUP, LLC2026-06-302026-08-154,500$321,840Call
State of Tennessee, Department of Treasury2026-06-302026-08-1515,121$1,081,454None
PDT Partners, LLC2026-06-302026-08-1536,197$2,588,809None
Legal & General Group Plc2026-06-302026-08-1522,490$1,608,486None
Legal & General Group Plc2026-06-302026-08-154,981$356,241None
Legal & General Group Plc2026-06-302026-08-1540,541$2,899,492None
Ensign Peak Advisors, Inc2026-06-302026-08-153,059$218,780None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1511,132$796,161None
Weiss Asset Management LP2026-06-302026-08-1525,675$1,836,276None
Empyrean Capital Partners, LP2026-06-302026-08-151,308,000$93,548,160None

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

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Corient Private Wealth LP ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗MERCER GLOBAL ADVISORS INC /ADV ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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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.