Avantor, Inc.
US ˙ NYSE ˙ US05352A1007

SecurityAVTR / Avantor, Inc.
InstitutionCovestor Ltd
Latest Disclosed Ownership5,203 shares
Latest Disclosed Value $ 41
Covestor Ltd reports 1.50% increase in ownership of AVTR / Avantor, Inc.

On May 5, 2026 - Covestor Ltd filed a 13F-HR form disclosing ownership of 5,203 shares of Avantor, Inc. (US:AVTR) valued at $40,792 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 5,126 shares of Avantor, Inc.. The current value of the position is $49,533 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-05 2026-03-31 13F AVANTOR COMMON 05352A100 5,203 77 1.50 0 0.0284
2026-02-06 2025-12-31 13F AVANTOR COMMON 05352A100 5,126 -7,900 -60.65 0 0.0309
2025-10-30 2025-09-30 13F AVANTOR COMMON 05352A100 13,026 7,113 120.29 0 0.0893
2025-08-11 2025-06-30 13F AVANTOR COMMON 05352A100 5,913 3,270 123.72 0 0.0472
2025-05-12 2025-03-31 13F AVANTOR COMMON 05352A100 2,643 -563 -17.56 0 0.0287
2025-02-13 2024-12-31 13F AVANTOR COMMON 05352A100 3,206 -2,711 -45.82 0 0.0420
2024-11-01 2024-09-30 13F AVANTOR COMMON 05352A100 5,917 1,151 24.15 0 0.0959
2024-08-09 2024-06-30 13F AVANTOR COMMON 05352A100 4,766 332 7.49 0 0.0653
2024-05-10 2024-03-31 13F AVANTOR COMMON 05352A100 4,434 -460 -9.40 0 0.0718
2024-02-09 2023-12-31 13F AVANTOR COMMON 05352A100 4,894 -519 -9.59 0 0.0766
2023-11-13 2023-09-30 13F AVANTOR COMMON 05352A100 5,413 -1,896 -25.94 0 0.0860
2023-08-11 2023-06-30 13F AVANTOR COMMON 05352A100 7,309 2,431 49.84 0 0.1142
2023-05-15 2023-03-31 13F AVANTOR COMMON 05352A100 4,878 -5,022 -50.73 0 -100.00 0.0906
2023-02-14 2022-12-31 13F/A-1 AVANTOR COMMON 05352A100 9,900 2,717 37.83 209 49.29 0.1704
2023-02-14 2022-12-31 13F AVANTOR COMMON 05352A100 9,900 2,717 209 170.4286
2022-11-14 2022-09-30 13F AVANTOR COMMON 05352A100 7,183 1,689 30.74 140 -18.13 0.1233
2022-08-10 2022-06-30 13F AVANTOR COM 05352A100 5,494 244 4.65 171 -3.93 0.1354
2022-05-13 2022-03-31 13F AVANTOR COM 05352A100 5,250 3,511 201.90 178 143.84 0.1185
2022-02-10 2021-12-31 13F AVANTOR COM 05352A100 1,739 1,739 73 0.1023
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.