Company · Ownership research

Avantor, Inc. AVTR

CIK 0001722482 · CUSIP 05352A100

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 05352A100 (AVTR), not CUSIP 05352A900 (AVTR), CUSIP 05352A950 (AVTR), and does not merge CUSIPs.

This page lists the top 20 of 497 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$1.65B 64,452,111 shares	0.03%	-892.47K(-1.40%)Reduced	SEC filing ↗ May 10, 2024	▾
02	DODGE & COX CIK 200217 · View history	$1.63B 63,680,306 shares	0.94%	+2.48M(+4.10%)Added	SEC filing ↗ May 14, 2024	▾
03	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$1.31B 51,095,018 shares	0.80%	-1.57M(-3.00%)Reduced	SEC filing ↗ May 15, 2024	▾
04	BlackRock Inc. CIK 1364742 · View history	$1.09B 42,761,210 shares	0.03%	-3.09M(-6.70%)Reduced	SEC filing ↗ May 10, 2024	▾
05	Boston Partners CIK 1386060 · Amended · View history	$729.30M 28,561,802 shares	0.87%	+624.37K(+2.20%)Added	SEC filing ↗ May 28, 2024	▾
06	BARROW HANLEY MEWHINNEY & STRAUSS LLC CIK 313028 · View history	$602.92M 23,579,307 shares	2.03%	-785.61K(-3.20%)Reduced	SEC filing ↗ May 13, 2024	▾
07	CANADA PENSION PLAN INVESTMENT BOARD CIK 1283718 · View history	$548.83M 21,463,630 shares	0.58%	-754.31K(-3.40%)Reduced	SEC filing ↗ May 14, 2024	▾
08	JANUS HENDERSON GROUP PLC CIK 1274173 · View history	$364.55M 14,257,000 shares	0.20%	-417.23K(-2.80%)Reduced	SEC filing ↗ May 15, 2024	▾
09	New Mountain Capital, L.L.C. CIK 1407718 · View history	$357.98M 14,000,000 shares	22.74%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2024	▾
10	STATE STREET CORP CIK 93751 · View history	$357.16M 13,968,088 shares	0.02%	+193.69K(+1.40%)Added	SEC filing ↗ May 15, 2024	▾
11	Invesco Ltd. CIK 914208 · View history	$275.06M 10,757,047 shares	0.06%	-165.89K(-1.50%)Reduced	SEC filing ↗ May 14, 2024	▾
12	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$260.98M 10,224,631 shares	0.02%	+371.13K(+3.80%)Added	SEC filing ↗ May 13, 2024	▾
13	Artemis Investment Management LLP CIK 1535385 · View history	$233.11M 9,120,083 shares	3.02%	+1.18M(+14.90%)Added	SEC filing ↗ Apr 16, 2024	▾
14	Durable Capital Partners LP CIK 1798849 · View history	$217.33M 8,499,352 shares	1.68%	+8.50MNew	SEC filing ↗ May 15, 2024	▾
15	NORGES BANK CIK 1374170 · Amended · View history	$209.46M 8,191,786 shares	0.03%	+1.34M(+19.50%)Added	SEC filing ↗ May 14, 2024	▾
16	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC CIK 861177 · View history	$197.08M 7,707,275 shares	0.07%	+408.76K(+5.60%)Added	SEC filing ↗ May 15, 2024	▾
17	BESSEMER GROUP INC CIK 1054074 · Amended · View history	$181.54M 7,099,848 shares	0.33%	+297.53K(+4.40%)Added	SEC filing ↗ May 13, 2024	▾
18	VOYA INVESTMENT MANAGEMENT LLC CIK 1068837 · Amended · View history	$163.48M 6,393,609 shares	0.16%	+968.16K(+17.80%)Added	SEC filing ↗ Feb 7, 2025	▾
19	BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history	$161.88M 6,331,024 shares	0.02%	+1.18M(+23.00%)Added	SEC filing ↗ May 15, 2024	▾
20	Clarkston Capital Partners, LLC CIK 1562855 · View history	$149.63M 5,851,620 shares	2.64%	+7.57K(+0.10%)Added	SEC filing ↗ May 14, 2024	▾

Showing 20 / 497 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

497

Cancelled or null records excluded

Disclosed shares

644,726,436

Not deduplicated across managers

Disclosed value

$16.48B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Avantor, Inc. · Q1 2024

Explore all 497 reporting institutions.

This page includes 20 of 497 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.