Follow-The-Filings

Security

ARM

Arm Holdings PLC · SPONSORED ADS

Equity holders as of 2026 Q1 (each manager’s latest book)

12 owners 4 new 3 exits max 4.6% (Brad Gerstner - Altimeter...)

grid → activity → earnings →
owners 12
max % 4.6%
tracked value $847M
qoq N 4 A 4 R 2 E 3

holders

sorted by % of portfolio · long equity only · exits show last held size

manager % port activity shares value history
Brad Gerstner - Altimeter Capital Management, LP 2026 Q1 4.6% New 4.6% 1,715,440 $260M hist
Alex Sacerdote - Whale Rock Capital Management LLC 2026 Q1 0.9% New 0.9% 452,384 $68M hist
Stanley Druckenmiller - Duquesne Family Office LLC 2026 Q1 0.5% New 0.5% 106,700 $16M hist
Ray Dalio - Bridgewater Associates, LP 2026 Q1 0.4% Add +0.27 pp 593,361 $90M hist
Two Sigma Investments, LP 2025 Q4 stale 0.2% Exit -0.19 pp 1,259,155 $138M hist
Dmitry Balyasny - Balyasny Asset Management L.P. 2026 Q1 0.2% Add +0.17 pp 924,723 $140M hist
D. E. Shaw & Co., Inc. 2026 Q1 0.0% Add +0.02 pp 306,620 $46M hist
Israel Englander - Millennium Management LLC 2026 Q1 0.0% Add +0.01 pp 270,164 $41M hist
Ken Griffin - Citadel Advisors LLC 2026 Q1 0.0% Reduce 0.00 pp 288,820 $44M hist
Renaissance Technologies LLC 2026 Q1 0.0% Reduce -0.08 pp 16,900 $3M hist
Steve Cohen - Point72 Asset Management, L.P. 2026 Q1 0.0% New 0.0% 14,262 $2M hist
Ancora Advisors LLC 2026 Q1 0.0% — 726 $110 hist
Philippe Laffont - Coatue Management LLC exited 2026 Q1 last 2025 Q4 0.6% Exit -0.63 pp 2,300,000 $251M hist
Marshall Wace - Marshall Wace, LLP exited 2026 Q1 last 2025 Q4 0.1% Exit -0.11 pp 1,128,252 $123M hist
Ken Fisher - Fisher Asset Management, LLC exited 2026 Q1 last 2025 Q4 0.0% Exit 0.00 pp 2,732 $299 hist

12 current · 3 exited last period · options excluded

SEC filings

Recent issuer filings from EDGAR · 25 shown

Filed Form Detail Links
6-K 6-K Filing Doc
6-K 6-K Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
20-F 20-F Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc
4 FORM 4 Filing Doc

Updated 10 minutes ago Source: SEC EDGAR submissions All on EDGAR

ownership over time

filing count by report period · click a bar for that quarter’s holders