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Public ownership evidence

Avantor, Inc. (AVTR) Ownership Disclosures

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

As of 2026-11-07T14:03:26.246Z

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2026-11-032026-10-30Sokenu ClaudiusA62,305Not reported

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

The displayed observation date is 2026-10-30 and its public availability date is 2026-11-03. Subtracting those calendar dates gives 4 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 A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

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.

Recent Form 4 activity

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2026-11-032026-10-30Sokenu ClaudiusA62,305Not reported
2026-11-032026-10-30Hankamer BrittanyA46,728Not reported
2026-09-232026-09-21Garner Todd WA49,688Not reported
2026-09-232026-09-21Garner Todd WA138,632Not 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 LLC2026-06-302026-08-29225$2,228None
Cornerstone Financial Management LLC2025-12-312026-08-29166$1,902None
Advisors Asset Management, Inc.2022-12-312026-08-2824,103$508,332None
Advisors Asset Management, Inc.2022-06-302026-08-2816,574$515,000None
Corient Private Wealth LP2026-06-302026-08-2814,234$140,917None
Corient Private Wealth LP2026-06-302026-08-281,746,371$17,289,075None
Principia Wealth Advisory, LLC2026-06-302026-08-27105$1,040None
Principia Wealth Advisory, LLC2026-03-312026-08-27113$886None
Advisors Asset Management, Inc.2024-03-312026-08-2721,882$559,523None
Advisors Asset Management, Inc.2022-09-302026-08-2719,591$384,000None
Advisors Asset Management, Inc.2023-06-302026-08-2722,823$468,784None
Advisors Asset Management, Inc.2023-09-302026-08-2722,491$474,110None
Advisors Asset Management, Inc.2023-03-312026-08-2723,347$493,556None
Advisors Asset Management, Inc.2023-12-312026-08-2721,744$496,416None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-26168,600$1,321,824None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-26194,100$1,921,590None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25763,374$7,557,403None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-257,557,403$763,374,000None
Assenagon Asset Management S.A.2026-06-302026-08-22556,871$5,513,023None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-20233,373$2,310,396None
Ensign Peak Advisors, Inc2026-03-312026-08-1938,546$302,201None
Ensign Peak Advisors, Inc2025-12-312026-08-1938,546$441,737None
Ensign Peak Advisors, Inc2025-09-302026-08-19138,896$1,733,422None
Fulcrum Asset Management LLP2026-06-302026-08-198,200$82,246None
NORTH STAR ASSET MANAGEMENT INC2026-06-302026-08-19138,877$1,374,882None
Corient Private Wealth LP2026-06-302026-08-181,722,983$17,057,534None
Empowered Funds, LLC2026-06-302026-08-1822,740$225,126None
Empowered Funds, LLC2026-06-302026-08-182,854$28,255None
Transamerica Financial Advisors, LLC2026-06-302026-08-18328$3,247None
UNITED CAPITAL FINANCIAL ADVISORS, LLC2026-06-302026-08-1825,124$248,728None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-18187,865$1,859,864None
EFG International AG2026-06-302026-08-1587,500$866,250None
DARK FOREST CAPITAL MANAGEMENT LP2026-06-302026-08-15130,438$1,291,336None
Synergy Investment Management, LLC2026-06-302026-08-151$14None
SummitTX Capital, L.P.2026-06-302026-08-1531,285$309,722None
SEI INVESTMENTS CO2026-06-302026-08-157,782,434$77,046,097None
SEI INVESTMENTS CO2026-06-302026-08-154,158$41,270None
SEI INVESTMENTS CO2026-06-302026-08-15160,606$1,590,000None
Aster Capital Management (DIFC) Ltd2026-06-302026-08-158,863$87,744None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15120$1,188None
JPL Wealth Management, LLC2026-06-302026-08-1556$555None
SHELTON CAPITAL MANAGEMENT2026-06-302026-08-1522,738$225,106None
Rafferty Asset Management, LLC2026-06-302026-08-1510,758$106,504None
Kera Capital Partners, Inc.2026-06-302026-08-1551,885$513,662None
Quarry LP2026-06-302026-08-15140$1,386None
ADAR1 Capital Management, LLC2026-06-302026-08-15130,000$1,287,000None
American Trust2026-06-302026-08-1514,944$147,946None
Wick Capital Partners, LLC2026-06-302026-08-1511,339$112,256None
XTX Topco Ltd2026-06-302026-08-15323,521$3,202,858None
Prestige Wealth Management Group LLC2026-06-302026-08-1544$436None

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

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.

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.