Avantor, Inc.
US ˙ NYSE ˙ US05352A1007

SecurityAVTR / Avantor, Inc.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership1,661 shares
Latest Disclosed Value $ 13,022
Signaturefd, Llc reports 70.53% increase in ownership of AVTR / Avantor, Inc.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 1,661 shares of Avantor, Inc. (US:AVTR) valued at $13,022 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 974 shares of Avantor, Inc.. This represents a change in shares of 70.53% during the quarter. The current value of the position is $15,215 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)
2026-04-07 2026-03-31 13F AVANTOR COM 05352A100 1,661 687 70.53 13 18.18 0.0002
2026-01-20 2025-12-31 13F AVANTOR COM 05352A100 974 -1,925 -66.40 11 -69.44 0.0002
2025-10-21 2025-09-30 13F AVANTOR COM 05352A100 2,899 -3,167 -52.21 36 -55.56 0.0006
2025-07-16 2025-06-30 13F AVANTOR COM 05352A100 6,066 596 10.90 82 -7.95 0.0014
2025-05-02 2025-03-31 13F AVANTOR COM 05352A100 5,470 904 19.80 89 -8.33 0.0017
2025-02-10 2024-12-31 13F AVANTOR COM 05352A100 4,566 911 24.92 96 2.13 0.0018
2024-10-21 2024-09-30 13F AVANTOR COM 05352A100 3,655 235 6.87 95 30.56 0.0018
2024-07-29 2024-06-30 13F AVANTOR COM 05352A100 3,420 -586 -14.63 73 -29.41 0.0015
2024-05-03 2024-03-31 13F AVANTOR COM 05352A100 4,006 915 29.60 102 45.71 0.0022
2024-02-01 2023-12-31 13F AVANTOR COM 05352A100 3,091 -2,888 -48.30 71 -44.44 0.0016
2023-11-03 2023-09-30 13F AVANTOR COM 05352A100 5,979 1,759 41.68 126 46.51 0.0033
2023-08-01 2023-06-30 13F AVANTOR COM 05352A100 4,220 -622 -12.85 87 -15.69 0.0022
2023-04-28 2023-03-31 13F AVANTOR COM 05352A100 4,842 996 25.90 102 25.93 0.0028
2023-01-30 2022-12-31 13F AVANTOR COM 05352A100 3,846 -845 -18.01 81 -11.96 0.0024
2022-11-08 2022-09-30 13F AVANTOR COM 05352A100 4,691 1,612 52.35 92 -4.17 0.0031
2022-08-10 2022-06-30 13F AVANTOR COM 05352A100 3,079 709 29.92 96 20.00 0.0033
2022-05-02 2022-03-31 13F AVANTOR COM 05352A100 2,370 359 17.85 80 -5.88 0.0024
2022-01-25 2021-12-31 13F AVANTOR COM 05352A100 2,011 -730 -26.63 85 -24.11 0.0026
2021-10-28 2021-09-30 13F AVANTOR COM 05352A100 2,741 2,329 565.29 112 646.67 0.0039
2021-07-26 2021-06-30 13F AVANTOR COM 05352A100 412 161 64.14 15 114.29 0.0006
2021-04-30 2021-03-31 13F AVANTOR COM 05352A100 251 -42 -14.33 7 -12.50 0.0003
2021-02-11 2020-12-31 13F AVANTOR COM 05352A100 293 69 30.80 8 60.00 0.0004
2020-11-03 2020-09-30 13F AVANTOR COM 05352A100 224 130 138.30 5 150.00 0.0003
2020-07-30 2020-06-30 13F AVANTOR COM 05352A100 94 94 2 0.0001
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.