Avantor, Inc.
US ˙ NYSE ˙ US05352A1007

SecurityAVTR / Avantor, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership16,894,649 shares
Latest Disclosed Value $ 132,443,131
Dimensional Fund Advisors Lp reports 15.66% increase in ownership of AVTR / Avantor, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 16,894,649 shares of Avantor, Inc. (US:AVTR) valued at $132,454,048 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 14,606,596 shares of Avantor, Inc.. This represents a change in shares of 15.66% during the quarter. The current value of the position is $154,754,985 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F AVANTOR COM 05352A100 16,894,649 2,288,053 15.66 132,443 -20.88 0.0275
2026-02-12 2025-12-31 13F AVANTOR COM 05352A100 14,606,596 1,222,850 9.14 167,392 0.23 0.0351
2025-11-12 2025-09-30 13F AVANTOR COM 05352A100 13,383,746 2,482,519 22.77 167,001 13.81 0.0358
2025-08-12 2025-06-30 13F AVANTOR COM 05352A100 10,901,227 5,339,549 96.01 146,734 62.76 0.0340
2025-05-13 2025-03-31 13F AVANTOR COM 05352A100 5,561,678 -1,279,395 -18.70 90,153 -37.45 0.0224
2025-02-13 2024-12-31 13F AVANTOR COM 05352A100 6,841,073 1,364,175 24.91 144,142 1.73 0.0346
2024-11-07 2024-09-30 13F AVANTOR COM 05352A100 5,476,898 1,042,703 23.52 141,685 50.70 0.0344
2024-08-09 2024-06-30 13F AVANTOR COM 05352A100 4,434,195 350,247 8.58 94,018 -9.97 0.0246
2024-05-10 2024-03-31 13F AVANTOR COM 05352A100 4,083,948 107,683 2.71 104,427 15.02 0.0283
2024-02-07 2023-12-31 13F AVANTOR COM 05352A100 3,976,265 463,662 13.20 90,789 22.63 0.0265
2023-11-09 2023-09-30 13F AVANTOR COM 05352A100 3,512,603 137,487 4.07 74,032 6.81 0.0243
2023-08-09 2023-06-30 13F AVANTOR COM 05352A100 3,375,116 494,701 17.17 69,315 13.83 0.0221
2023-05-12 2023-03-31 13F AVANTOR COM 05352A100 2,880,415 397,803 16.02 60,894 117,003.85 0.0205
2023-02-09 2022-12-31 13F AVANTOR COM 05352A100 2,482,612 95,887 4.02 52 -99.89 0.0155
2022-11-10 2022-09-30 13F AVANTOR COM 05352A100 2,386,725 7,865 0.33 46,790 -36.76 0.0180
2022-08-12 2022-06-30 13F AVANTOR COM 05352A100 2,378,860 30,468 1.30 73,989 -6.85 0.0265
2022-05-13 2022-03-31 13F AVANTOR COM 05352A100 2,348,392 36,289 1.57 79,430 -18.48 0.0245
2022-02-09 2021-12-31 13F AVANTOR COM 05352A100 2,312,103 469,539 25.48 97,431 29.29 0.0295
2021-11-12 2021-09-30 13F AVANTOR COM 05352A100 1,842,564 324,770 21.40 75,361 39.82 0.0243
2021-08-12 2021-06-30 13F AVANTOR COM 05352A100 1,517,794 1,159,167 323.22 53,897 419.49 0.0171
2021-05-14 2021-03-31 13F AVANTOR COM 05352A100 358,627 246,366 219.46 10,375 228.32 0.0034
2021-03-08 2020-12-31 13F/A-2 AVANTOR COM 05352A100 112,261 5,252 4.91 3,160 31.28 0.0011
2021-02-11 2020-12-31 13F AVANTOR COM 05352A100 112,261 5,252 3,160 1,141.2240
2020-11-12 2020-09-30 13F AVANTOR COM 05352A100 107,009 31,832 42.34 2,407 88.34 0.0010
2020-08-13 2020-06-30 13F AVANTOR COM 05352A100 75,177 1,063 1.43 1,278 38.01 0.0006
2020-05-14 2020-03-31 13F AVANTOR COM 05352A100 74,114 38,795 109.84 926 44.46 0.0005
2020-02-14 2019-12-31 13F AVANTOR COM 05352A100 35,319 1,474 4.36 641 28.71 0.0002
2019-11-12 2019-09-30 13F AVANTOR COM 05352A100 33,845 33,845 498 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.