Avantor, Inc. 13F holders
Of the 44 funds followed here, 8 reported a position in Avantor, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Dodge & Cox, 120.0 million shares worth $1.19 billion, 0.6% of its reported book.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Dodge & Cox | 120,020,974 | $1.19 billion | 0.6% | +372,645 | added | 30 June 2026 | 13F |
| Geode Capital Management | 13,180,567 | $130.5 million | 0.0% | +289,146 | added | 30 June 2026 | 13F |
| FMR LLC | 7,845,462 | $77.7 million | 0.0% | +235,144 | added | 30 June 2026 | 13F |
| Norges Bank | 6,091,712 | $60.3 million | 0.0% | held | 30 June 2026 | 13F | |
| Southeastern Asset Management | 4,725,478 | $46.8 million | 2.4% | +1,205,266 | added | 30 June 2026 | 13F |
| Millennium Management | 753,575 | $7.5 million | 0.0% | -1,781,705 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 512,947 | $5.1 million | 0.0% | -150,164 | trimmed | 30 June 2026 | 13F |
| Bridgewater Associates | 301,219 | $3.0 million | 0.0% | +173,010 | added | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 29 April 2026 | 13G | Vanguard Capital Management and 1 other | 35.8 million | 5.3% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 November 2025 | 13G/A | T. Rowe Price Investment Management, Inc. and 1 other | 32.9 million | 4.8% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 17 October 2025 | 13G/A | BlackRock, Inc. and 1 other | 59.0 million | 8.7% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.Fails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 14 September 2026 | 1 | $14.81 | SEC |
| 11 September 2026 | 232 | $14.88 | SEC |
| 1 September 2026 | 16,308 | $14.54 | SEC |
| 31 August 2026 | 16,340 | $14.58 | SEC |
| 28 August 2026 | 16,397 | $14.61 | SEC |
| 25 August 2026 | 8,000 | $14.26 | SEC |
| 24 August 2026 | 10,835 | $14.46 | SEC |
| 21 August 2026 | 53,800 | $14.25 | SEC |
| 19 August 2026 | 16,539 | $13.33 | SEC |
| 11 August 2026 | 23 | $13.73 | SEC |
| 7 August 2026 | 32 | $13.18 | SEC |
| 4 August 2026 | 2,151 | $13.67 | SEC |
| 3 August 2026 | 41 | $13.78 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
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Largest in the window: 53,800 on 21 August 2026. A fail is an operational fact about settlement, not a position.Source
Each fund's 13F-HR on EDGAR, linked per row; positions matched to AVTR by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.
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