Avantor, Inc. (AVTR) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

678,200,000Shares Outstanding

713,006,051Shares held by institutions

$5,632,747,803Value of institutional holdings

105.13%Institutional ownership %

7.47%Shares Changed QoQ

405No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Avantor, Inc. (NYSE:AVTR) is held by 404 institutional investors per 13F filings through December 2025.

These investors held 105.0% of outstanding shares in December 2025, up from 100.9% in September 2025.
Their total shares held in AVTR increased 7.65% quarter over quarter, and separately, investors owning Avantor decreased 16.36% from a year ago.
Of these 404 funds, 171 grew their exposure to Avantor, 187 cut back, and 46 maintained positions.
The aggregate institutional position in Avantor amounted to 711.85Mn shares as of December 2025, up by 50.59Mn shares quarter on quarter, and down 12.56Mn shares year over year.
As of December 31, 2025, GREENHAVEN ASSOCIATES INC held the largest stake in Avantor with 22.59Mn shares, accounting for 3.33% of total shares outstanding.
The biggest buyers of Avantor for the quarter ending December 2025 included GREENHAVEN ASSOCIATES INC (2.09Mn), Olstein Capital Management, L.P. (392.0K), Oak Thistle LLC (43.61K), TRAN CAPITAL MANAGEMENT, L.P. (43.4K), SALEM INVESTMENT COUNSELORS INC (36.02K).
The largest sales of AVTR for the quarter ending December 2025 came from Assenagon Asset Management S.A. (3.51Mn), Perpetual Ltd (1.82Mn), Robeco Institutional Asset Management B.V. (63.88K), OPPENHEIMER ASSET MANAGEMENT INC. (51.81K), SG Americas Securities, LLC (28.08K).
Business Quant data shows the 10 biggest positions in Avantor as of December 2025 are held by GREENHAVEN ASSOCIATES INC (22.59Mn), Olstein Capital Management, L.P. (1.21Mn), Retirement Systems of Alabama (836.16K), SG Americas Securities, LLC (373.89K), Louisiana State Employees Retirement System (197.8K), YOUSIF CAPITAL MANAGEMENT, LLC (181.46K), Oak Thistle LLC (144.34K), Robeco Institutional Asset Management B.V. (124.43K), Pictet Asset Management Holding SA (106.84K), Assenagon Asset Management S.A. (106.07K).

409 Institutional Holders

713,006,051 Total Shares Held

Rows:

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Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
DODGE & COX	31 Dec, 2025	117,065,143	-681,745	-0.58%	$1,341,566,539.00
VANGUARD GROUP INC	31 Dec, 2025	64,904,889	-1,084,088	-1.64%	$743,810,028.00
BlackRock, Inc.	31 Dec, 2025	59,596,926	-1,120,061	-1.84%	$682,980,769.00
T. Rowe Price Investment Management, Inc.	31 Dec, 2025	53,370,757	20,443,062	62.08%	$611,629.00
BARROW HANLEY MEWHINNEY & STRAUSS LLC	31 Dec, 2025	33,287,174	-1,260,955	-3.65%	$381,471,014.00
WELLINGTON MANAGEMENT GROUP LLP	31 Dec, 2025	23,436,636	23,436,636	0.00%	$268,583,848.00
GREENHAVEN ASSOCIATES INC	31 Dec, 2025	20,500,653	2,189,083	11.95%	$234,937,483.00
State Street Corp	31 Dec, 2025	20,209,406	-156,364	-0.77%	$231,599,793.00
Morgan Stanley	31 Dec, 2025	17,468,418	11,216,565	179.41%	$200,188,089.00
Invesco Ltd.	31 Dec, 2025	17,178,716	1,125,348	7.01%	$196,868,086.00
Clarkston Capital Partners, LLC	31 Dec, 2025	15,105,065	84,740	0.56%	$173,104,045.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	14,606,596	1,222,850	9.14%	$167,392,027.00
New Mountain Capital, L.L.C.	31 Dec, 2025	14,000,000	0	0.00%	$160,440,000.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	11,978,560	-317,126	-2.58%	$137,306,603.00
LONDON CO OF VIRGINIA	31 Dec, 2025	11,936,522	-857,435	-6.70%	$136,792,547.00
Engine Capital Management, LP	31 Dec, 2025	11,927,812	-7,792,618	-39.52%	$136,692,726.00
MANUFACTURERS LIFE INSURANCE COMPANY, THE	31 Dec, 2025	8,734,396	-3,271,856	-27.25%	$100,096,178.00
UBS Group AG	31 Dec, 2025	7,731,643	3,573,739	85.95%	$88,604,629.00
FMR LLC	31 Dec, 2025	7,670,732	48,902	0.64%	$87,906,592.00
Robeco Schweiz AG	31 Dec, 2025	7,280,961	-639,216	-8.07%	$83,439,813.00

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