Avantor, Inc.
US ˙ NYSE ˙ US05352A1007

SecurityAVTR / Avantor, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership305,787 shares
Latest Disclosed Value $ 2,397
Amalgamated Bank reports 0.67% decrease in ownership of AVTR / Avantor, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 305,787 shares of Avantor, Inc. (US:AVTR) valued at $2,397,370 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 307,843 shares of Avantor, Inc.. This represents a change in shares of -0.67% during the quarter. The current value of the position is $2,801,009 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)
2026-05-08 2026-03-31 13F AVANTOR COM 05352A100 305,787 -2,056 -0.67 2 -33.33 0.0183
2026-02-05 2025-12-31 13F AVANTOR COM 05352A100 307,843 -2,340 -0.75 4 0.00 0.0255
2025-10-29 2025-09-30 13F AVANTOR COM 05352A100 310,183 -621 -0.20 4 -25.00 0.0277
2025-08-04 2025-06-30 13F AVANTOR COM 05352A100 310,804 -3,109 -0.99 4 -20.00 0.0323
2025-04-25 2025-03-31 13F AVANTOR COM 05352A100 313,913 -11,183 -3.44 5 -16.67 0.0435
2025-02-04 2024-12-31 13F AVANTOR COM 05352A100 325,096 1,126 0.35 7 -25.00 0.0562
2024-10-30 2024-09-30 13F AVANTOR COM 05352A100 323,970 286,811 771.85 8 0.0690
2024-08-12 2024-06-30 13F AVANTOR COM 05352A100 37,159 -911 -2.39 1 0.0067
2024-04-23 2024-03-31 13F AVANTOR COM 05352A100 38,070 -30,274 -44.30 1 -100.00 0.0083
2024-02-06 2023-12-31 13F AVANTOR COM 05352A100 68,344 2,546 3.87 2 0.00 0.0124
2023-11-08 2023-09-30 13F AVANTOR COM 05352A100 65,798 2,997 4.77 1 0.00 0.0118
2023-08-11 2023-06-30 13F AVANTOR COM 05352A100 62,801 -6,471 -9.34 1 0.00 0.0104
2023-05-02 2023-03-31 13F AVANTOR COM 05352A100 69,272 1,424 2.10 1 0.00 0.0125
2023-02-10 2022-12-31 13F AVANTOR COM 05352A100 67,848 521 0.77 1 -99.92 0.0128
2022-11-09 2022-09-30 13F AVANTOR COM 05352A100 67,327 -4,026 -5.64 1,320 -40.51 0.0127
2022-08-15 2022-06-30 13F AVANTOR COM 05352A100 71,353 -67,915 -48.77 2,219 -52.89 0.0207
2022-08-25 2022-03-31 13F/A-1 AVANTOR COM 05352A100 139,268 12,114 9.53 4,710 -12.09 0.0366
2022-06-30 2022-03-31 13F AVANTOR COM 05352A100 139,268 12,114 4,710 0.0374
2022-02-15 2021-12-31 13F/A-1 AVANTOR COM 05352A100 127,154 4,144 3.37 5,358 6.50 0.0395
2022-02-15 2021-12-31 13F AVANTOR COM 05352A100 127,154 4,144 5,358 0.0395
2021-10-29 2021-09-30 13F AVANTOR COM 05352A100 123,010 -6,285 -4.86 5,031 9.58 0.0425
2021-08-16 2021-06-30 13F AVANTOR COM 05352A100 129,295 37,634 41.06 4,591 73.11 0.0368
2021-05-13 2021-03-31 13F AVANTOR COM 05352A100 91,661 -8,425 -8.42 2,652 -5.86 0.0994
2021-02-12 2020-12-31 13F AVANTOR COM 05352A100 100,086 9,558 10.56 2,817 38.36 0.1068
2020-10-30 2020-09-30 13F AVANTOR COM 05352A100 90,528 5,089 5.96 2,036 40.22 0.0885
2020-08-10 2020-06-30 13F AVANTOR COM 05352A100 85,439 6,104 7.69 1,452 46.52 0.0672
2020-05-13 2020-03-31 13F AVANTOR COM 05352A100 79,335 -2,703 -3.29 991 -33.45 0.0242
2020-02-13 2019-12-31 13F AVANTOR COM 05352A100 82,038 26,943 48.90 1,489 83.83 0.0274
2019-11-13 2019-09-30 13F AVANTOR COM 05352A100 55,095 55,095 810 0.0170
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.