Avantor, Inc.
AT ˙ WBAG ˙ US05352A1007
€ 8,03 ↓ -0,22 (-2,67%)
2026-06-05
AKTIENPREIS
SecurityAT:AVTR / Avantor, Inc.
InstitutionNorges Bank
Latest Disclosed Ownership6,398,087 shares
Latest Disclosed Value $ 73,322,077
Norges Bank ownership in AVTR / Avantor, Inc.

On February 10, 2026 - Norges Bank filed a 13F-HR form disclosing ownership of 6,398,087 shares of Avantor, Inc. (AT:AVTR) valued at $73,322,077 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 0 shares of Avantor, Inc.. The current value of the position is $51,351,046 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)
2026-02-10 2025-12-31 13F AVANTOR COM 05352A100 6,398,087 6,398,087 73,322 0.0078
2025-11-13 2025-09-30 13F AVANTOR COM 05352A100 0 -8,036,188 -100.00 0 -100.00
2025-08-13 2025-06-30 13F AVANTOR COM 05352A100 8,036,188 339,374 4.41 108,167 -13.30 0.0135
2026-05-11 2025-03-31 13F/A-1 AVANTOR COM 05352A100 7,696,814 933,053 13.79 124,765 -12.45 0.0175
2025-02-12 2024-12-31 13F AVANTOR COM 05352A100 6,763,761 -1,324,178 -16.37 142,512 -31.89 0.0187
2025-11-12 2024-09-30 13F/A-1 AVANTOR COM 05352A100 8,087,939 -27,793 -0.34 209,235 21.61 0.0292
2024-08-14 2024-06-30 13F AVANTOR COM 05352A100 8,115,732 -76,054 -0.93 172,054 -17.86 0.0257
2025-05-14 2024-03-31 13F/A-1 AVANTOR COM 05352A100 8,191,786 1,338,752 19.54 209,464 33.88 0.0331
2024-02-09 2023-12-31 13F AVANTOR COM 05352A100 6,853,034 236,441 3.57 156,455 12.17 0.0273
2024-11-13 2023-09-30 13F/A-1 AVANTOR COM 05352A100 6,616,593 -2,076,008 -23.88 139,478 -21.88 0.0283
2024-08-14 2023-06-30 13F/A-1 AVANTOR COM 05352A100 8,692,601 2,763,390 46.61 178,546 42.45 0.0352
2024-05-15 2023-03-31 13F/A-1 AVANTOR COM 05352A100 5,929,211 292,479 5.19 125,344 5.44 0.0274
2023-02-14 2022-12-31 13F AVANTOR COM 05352A100 5,636,732 194,820 3.58 118,879 11.45 0.0287
2023-11-13 2022-09-30 13F/A-1 AVANTOR COM 05352A100 5,441,912 242,495 4.66 106,661 -34.04 0.0284
2023-08-14 2022-06-30 13F/A-1 AVANTOR COM 05352A100 5,199,417 250,899 5.07 161,702 -3.38 0.0418
2023-05-12 2022-03-31 13F/A-1 AVANTOR COM 05352A100 4,948,518 -943,780 -16.02 167,359 -32.60 0.0365
2022-03-09 2021-12-31 13F/A-1 AVANTOR COM 05352A100 5,892,298 -478,947 -7.52 248,301 -4.71 0.0511
2022-11-14 2021-09-30 13F/A-1 AVANTOR COM 05352A100 6,371,245 789,050 14.14 260,584 31.46 0.0577
2022-08-15 2021-06-30 13F/A-1 AVANTOR COM 05352A100 5,582,195 610,055 12.27 198,224 37.80 0.0430
2022-05-09 2021-03-31 13F/A-1 AVANTOR COM 05352A100 4,972,140 -3,790,080 -43.25 143,844 -41.68 0.0329
2021-03-02 2020-12-31 13F/A-1 AVANTOR COM 05352A100 8,762,220 3,739,584 74.45 246,656 118.36 0.0576
2021-11-12 2020-09-30 13F/A-1 AVANTOR COM 05352A100 5,022,636 33,098 0.66 112,959 33.17 0.0300
2021-08-13 2020-06-30 13F/A-1 AVANTOR COM 05352A100 4,989,538 1,386,536 38.48 84,822 88.49 0.0244
2021-05-07 2020-03-31 13F/A-1 AVANTOR COM 05352A100 3,603,002 -81,072 -2.20 45,001 -32.70 0.0160
2020-03-03 2019-12-31 13F/A-1 AVANTOR COM 05352A100 3,684,074 3,453,920 1,500.70 66,866 1,876.53 0.0187
2020-11-13 2019-09-30 13F/A-1 AVANTOR COM 05352A100 230,154 -58,207 -20.19 3,383 -38.55 0.0010
2020-08-13 2019-06-30 13F/A-1 AVANTOR COM 05352A100 288,361 288,361 5,505 0.0017
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.