아반토르(주)
US ˙ NYSE ˙ US05352A1007

SecurityAVTR / Avantor, Inc.
InstitutionEversept Partners, LP
Latest Disclosed Ownership2,974,287 shares
Latest Disclosed Value $ 23,318,410
Eversept Partners, LP reports 6.37% decrease in ownership of AVTR / Avantor, Inc.

On May 15, 2026 - Eversept Partners, LP filed a 13F-HR form disclosing ownership of 2,974,287 shares of Avantor, Inc. (US:AVTR) valued at $23,318,410 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,176,644 shares of Avantor, Inc.. This represents a change in shares of -6.37% during the quarter. The current value of the position is $28,315,212 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)
2026-05-15 2026-03-31 13F AVANTOR COM 05352A100 2,974,287 -202,357 -6.37 23,318 -35.95 1.2296
2026-02-17 2025-12-31 13F AVANTOR COM 05352A100 3,176,644 2,252,202 243.63 36,404 215.54 1.8345
2025-11-14 2025-09-30 13F AVANTOR COM 05352A100 924,442 -601,722 -39.43 11,537 -43.84 0.7951
2025-08-14 2025-06-30 13F AVANTOR COM 05352A100 1,526,164 1,403,341 1,142.57 20,542 932.26 1.8894
2025-05-15 2025-03-31 13F AVANTOR COM 05352A100 122,823 -45,546 -27.05 1,991 -43.90 0.2022
2025-02-14 2024-12-31 13F AVANTOR COM 05352A100 168,369 0 0.00 3,548 -18.55 0.3149
2024-11-14 2024-09-30 13F AVANTOR COM 05352A100 168,369 42,975 34.27 4,356 63.84 0.2984
2024-08-14 2024-06-30 13F AVANTOR COM 05352A100 125,394 0 0.00 2,658 -17.09 0.1820
2024-05-15 2024-03-31 13F AVANTOR COM 05352A100 125,394 -570 -0.45 3,206 11.51 0.2139
2024-02-14 2023-12-31 13F AVANTOR COM 05352A100 125,964 41,469 49.08 2,876 61.43 0.2526
2023-11-14 2023-09-30 13F AVANTOR COM 05352A100 84,495 84,495 1,781 0.1507
2023-11-08 2023-06-30 13F/A-1 AVANTOR COM 05352A100 0 -717,614 -100.00 0 -100.00
2023-08-14 2023-06-30 13F AVANTOR COM 05352A100 0 -717,614 0
2023-11-08 2023-03-31 13F/A-1 AVANTOR COM 05352A100 717,614 117,414 19.56 15,170 19.85 1.0578
2023-05-15 2023-03-31 13F AVANTOR COM 05352A100 717,614 117,414 15,170 1.3236
2023-11-08 2022-12-31 13F/A-1 AVANTOR COM 05352A100 600,200 525,748 706.16 12,658 767.58 1.1089
2023-02-14 2022-12-31 13F AVANTOR COM 05352A100 600,200 525,748 12,658 1.1700
2023-11-08 2022-09-30 13F/A-1 AVANTOR COM 05352A100 74,452 -1,045,723 -93.35 1,459 -95.81 0.1266
2022-11-14 2022-09-30 13F AVANTOR COM 05352A100 74,452 -1,045,723 1,459 0.1491
2023-11-08 2022-06-30 13F/A-1 AVANTOR COM 05352A100 1,120,175 124,943 12.55 34,837 3.50 2.4780
2022-08-15 2022-06-30 13F AVANTOR COM 05352A100 1,120,175 124,943 34,837 2.8473
2023-11-08 2022-03-31 13F/A-1 AVANTOR COM 05352A100 995,232 -130,233 -11.57 33,659 -29.03 2.5846
2022-05-16 2022-03-31 13F AVANTOR COM 05352A100 995,232 -130,233 33,659 2.7762
2023-11-08 2021-12-31 13F/A-1 AVANTOR COM 05352A100 1,125,465 -166,549 -12.89 47,427 -10.25 3.0309
2022-02-14 2021-12-31 13F AVANTOR COM 05352A100 1,125,465 -166,549 47,427 3.4909
2023-11-08 2021-09-30 13F/A-1 AVANTOR COM 05352A100 1,292,014 317,377 32.56 52,843 52.69 3.6683
2021-11-15 2021-09-30 13F AVANTOR COM 05352A100 1,292,014 317,377 52,843 3.9567
2023-11-08 2021-06-30 13F/A-1 AVANTOR COM 05352A100 974,637 15,650 1.63 34,609 24.75 2.3067
2021-08-16 2021-06-30 13F AVANTOR COM 05352A100 974,637 15,650 34,609 2.7138
2023-11-08 2021-03-31 13F/A-1 AVANTOR COM 05352A100 958,987 38,337 4.16 27,743 7.05 2.0867
2021-05-13 2021-03-31 13F AVANTOR COM 05352A100 958,987 38,337 27,743 2.1971
2023-11-08 2020-12-31 13F/A-1 AVANTOR COM 05352A100 920,650 920,650 25,916 3.0421
2021-02-16 2020-12-31 13F AVANTOR COM 05352A100 920,650 920,650 25,916 3.0834
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.