Arm Holdings plc - Depositary Receipt (Common Stock)

SecurityARM / Arm Holdings plc - Depositary Receipt (Common Stock)
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership155,106 shares
Latest Disclosed Value $ 54,995,934
Rockefeller Capital Management L.P. reports 99.63% increase in ownership of ARM / Arm Holdings plc - Depositary Receipt (Common Stock)

On August 13, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 155,106 shares of Arm Holdings plc - Depositary Receipt (Common Stock) (US:ARM) valued at $54,995,934 USD as of June 30, 2026. The entity filed a previous 13F-HR on May 14, 2026 disclosing 77,696 shares of Arm Holdings plc - Depositary Receipt (Common Stock). This represents a change in shares of 99.63% during the quarter. The current value of the position is $39,100,672 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)
2026-08-13 2026-06-30 13F ARM HOLDINGS SPONSORED ADS 042068205 155,106 77,410 99.63 54,996 367.92 0.0843
2026-05-14 2026-03-31 13F ARM HOLDINGS SPONSORED ADS 042068205 77,696 50,951 190.51 11,754 302.09 0.0208
2026-03-16 2025-12-31 13F/A-1 ARM HOLDINGS SPONSORED ADS 042068205 26,745 173 0.65 2,923 -22.24 0.0053
2026-02-14 2025-12-31 13F ARM HOLDINGS SPONSORED ADS 042068205 26,745 173 2,923 0.0027
2025-11-14 2025-09-30 13F ARM HOLDINGS SPONSORED ADS 042068205 26,572 3,347 14.41 3,760 0.08 0.0074
2025-08-14 2025-06-30 13F/A-1 ARM HOLDINGS SPONSORED ADS 042068205 23,225 2,797 13.69 3,756 72.21 0.0082
2025-08-08 2025-06-30 13F ARM HOLDINGS SPONSORED ADS 042068205 23,225 2,797 3,756 0.0047
2025-05-14 2025-03-31 13F ARM HOLDINGS SPONSORED ADS 042068205 20,428 4,604 29.10 2,182 11.73 0.0054
2025-02-13 2024-12-31 13F ARM HOLDINGS SPONSORED ADS 042068205 15,824 470 3.06 1,952 -11.07 0.0051
2024-11-14 2024-09-30 13F ARM HOLDINGS SPONSORED ADS 042068205 15,354 2,386 18.40 2,196 3.49 0.0059
2024-08-12 2024-06-30 13F ARM HOLDINGS SPONSORED ADS 042068205 12,968 -25,420 -66.22 2,122 -55.79 0.0060
2024-05-14 2024-03-31 13F ARM HOLDINGS SPONSORED ADR 042068205 38,388 38,388 4,798 0.0140
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.