아르비나스, Inc.
US ˙ NasdaqGS ˙ US04335A1051

SecurityARVN / Arvinas, Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership5,422,796 shares
Ownership 7.90%
BlackRock, Inc. ownership in ARVN / Arvinas, Inc.

2025-04-17 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 5,422,796 shares of Arvinas, Inc. (US:ARVN). This represents 7.9 percent ownership of the company. In their previous filing dated 2024-11-12 , BlackRock, Inc. had reported owning 6,496,086 shares, indicating a decrease of -16.52 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2025-04-17 2025-04-17 13G/A 6,496,086 5,422,796 -16.52 7.90 -16.84
2024-11-12 2024-11-12 13G/A 6,496,086 6,496,086 0.00 9.50 0.00
2024-10-22 2024-10-22 13G/A 6,496,086 9.50
2024-01-26 2024-01-26 13G/A 4,356,170 5,353,605 22.90 7.90 -3.66
2023-02-07 2023-02-07 13G/A 3,505,740 4,356,170 24.26 8.20 24.24
2022-02-03 2022-02-03 13G/A 2,815,747 3,505,740 24.50 6.60 11.86
2021-02-02 2021-02-02 13G 2,815,747 5.90

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F ARVINAS COM 04335A105 6,797,584 -524,917 -7.17 72,054 -17.03 0.0001
2026-02-12 2025-12-31 13F ARVINAS COM 04335A105 7,322,501 519,563 7.64 86,845 49.83 0.0015
2025-11-12 2025-09-30 13F ARVINAS COM 04335A105 6,802,938 -86,514 -1.26 57,961 14.31 0.0010
2025-08-12 2025-06-30 13F ARVINAS COM 04335A105 6,889,452 719,850 11.67 50,706 17.08 0.0010
2025-05-02 2025-03-31 13F ARVINAS COM 04335A105 6,169,602 -396,543 -6.04 43,311 -65.59 0.0009
2025-02-07 2024-12-31 13F ARVINAS COM 04335A105 6,566,145 70,059 1.08 125,873 -21.33 0.0025
2024-11-13 2024-09-30 13F ARVINAS COM 04335A105 6,496,086 237,278 3.79 159,999 -3.97 0.0034
2024-08-13 2024-06-30 13F ARVINAS COM 04335A105 6,258,808 764,554 13.92 166,609 -26.54 0.0038
2024-05-10 2024-03-31 13F ARVINAS COM 04335A105 5,494,254 139,390 2.60 226,803 2.90 0.0053
2024-02-13 2023-12-31 13F ARVINAS COM 04335A105 5,354,864 385,256 7.75 220,406 125.82 0.0056
2023-11-13 2023-09-30 13F ARVINAS COM 04335A105 4,969,608 66,139 1.35 97,603 -19.80 0.0028
2023-08-11 2023-06-30 13F ARVINAS COM 04335A105 4,903,469 427,871 9.56 121,704 -0.47 0.0034
2023-05-12 2023-03-31 13F ARVINAS COM 04335A105 4,475,598 119,428 2.74 122,273 -17.95 0.0036
2023-02-13 2022-12-31 13F ARVINAS COM 04335A105 4,356,170 649,662 17.53 149,025 -9.63 0.0047
2022-11-14 2022-09-30 13F ARVINAS COM 04335A105 3,706,508 31,339 0.85 164,901 6.60 0.0056
2022-08-12 2022-06-30 13F ARVINAS COM 04335A105 3,675,169 149,910 4.25 154,689 -34.80 0.0050
2022-05-12 2022-03-31 13F ARVINAS COM 04335A105 3,525,259 19,519 0.56 237,251 -17.61 0.0064
2022-02-10 2021-12-31 13F ARVINAS COM 04335A105 3,505,740 230,284 7.03 287,961 6.98 0.0073
2021-11-09 2021-09-30 13F ARVINAS COM 04335A105 3,275,456 165,086 5.31 269,178 12.39 0.0075
2021-08-11 2021-06-30 13F ARVINAS COM 04335A105 3,110,370 109,106 3.64 239,498 20.72 0.0067
2021-05-07 2021-03-31 13F ARVINAS COM 04335A105 3,001,264 185,517 6.59 198,384 -17.04 0.0058
2021-02-05 2020-12-31 13F ARVINAS COM 04335A105 2,815,747 497,210 21.44 239,142 336.88 0.0076
2020-11-06 2020-09-30 13F ARVINAS COM 04335A105 2,318,537 106,228 4.80 54,739 -26.23 0.0020
2020-08-14 2020-06-30 13F ARVINAS COM 04335A105 2,212,309 426,899 23.91 74,201 3.13 0.0030
2020-05-01 2020-03-31 13F ARVINAS COM 04335A105 1,785,410 -20,401 -1.13 71,951 -3.03 0.0035
2020-02-13 2019-12-31 13F ARVINAS COM 04335A105 1,805,811 732,906 68.31 74,201 220.94 0.0028
2019-11-08 2019-09-30 13F ARVINAS COM 04335A105 1,072,905 34,067 3.28 23,120 1.20 0.0010
2019-08-22 2019-06-30 13F/A-1 ARVINAS COM 04335A105 1,038,838 576,137 124.52 22,845 234.53 0.0010
2019-08-13 2019-06-30 13F ARVINAS COM 04335A105 1,038,838 22,845
2019-05-09 2019-03-31 13F ARVINAS COM 04335A105 462,701 -82,742 -15.17 6,829 -2.57 0.0003
2019-02-08 2018-12-31 13F ARVINAS COM 04335A105 545,443 284,656 109.15 7,009 59.33 0.0004
2018-11-09 2018-09-30 13F ARVINAS COM 04335A105 260,787 260,787 4,399 0.0002
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.