ARM — ARM HOLDINGS PLC

Ownership history in OBSIDIAN CIO, LLC  ·  3 quarters on record

This page tracks every 13F SEC filing in which OBSIDIAN CIO, LLC reported a position in ARM HOLDINGS PLC (ARM). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.06% (2025 Q2)
Avg. % of fund
0.05%
First filed
2025 Q1
Last filed
2025 Q3
Quarters held
3
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 2,640 -29 -1.1% 0.05% $374K $141.49
2025 Q2 REDUCED 2,669 -280 -9.5% 0.06% $432K $161.74
2025 Q1 INITIATED 2,949 — — 0.05% $315K $106.79
% of Fund (quarterly)    ARM price (monthly, adj. close)

Other funds also holding ARM

As of 2025 Q4 — sorted by position size

Alphabet Inc. 3Y 8.31% Hyperion Asset Management Ltd 3Y 5.61% Renaissance Capital LLC 3Y 5.5% LANSDOWNE PARTNERS (UK) LLP 3Y 7Y 3.78% Defender Capital, LLC. 3Y 3.57% Longitude (Cayman) Ltd. 3Y 2.83% TRAN CAPITAL MANAGEMENT, L.P. 3Y 7Y 2.48% Longitude (Cayman) Ltd. 3Y 2.36% DOCK STREET ASSET MANAGEMENT INC 3Y 7Y 2.17% MARK ASSET MANAGEMENT LP 3Y 7Y 2.06%
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