Security · featured owners
ARM Arm Holdings PLC
Information Technology SPONSORED ADS Equity as of 2026 Q2 among managers we track
- 4 Owners
- Max 5.9%
- $609M
- 2 new 2 reduce 1 exit
ARM (Arm Holdings PLC) is held in 4 featured 13F books as of 2026 Q2. Brad Gerstner - Altimeter Capital Management is the largest tracked holder by portfolio weight (5.9%). Figures are as-filed 13F, not free float.
Who owns this now
Largest portfolio weights among featured holders · max 5.9% (Brad Gerstner - Altimeter Capital Management) · not free-float ownership
holders
sorted by value · long equity only · current book 2026 Q2 · exits show last held size · open a manager for their book
| history | |||||
|---|---|---|---|---|---|
| Brad Gerstner - Altimeter Capital Management 2026 Q2 | 5.9% | Reduce −4.3% | 1,641,972 | $582M | history |
| Nehal Chopra - Ratan Capital Management 2026 Q2 | 5.0% | New 5.0% | 43,515 | $15M | history |
| Stanley Druckenmiller - Duquesne Family Office 2026 Q2 | 0.19% | Reduce −73.7% | 28,090 | $10M | history |
| Lee Ainslie - Maverick Capital 2026 Q2 | 0.01% | New 0.01% | 3,813 | $1M | history |
| Alex Sacerdote - Whale Rock Capital Management exited 2026 Q2 last 2026 Q1 | 0.88% | Exit −0.88% | 452,384 | $68M | history |
SEC filings
Recent issuer filings from EDGAR · 8 shown · open Filing / Doc on SEC.gov
| Filed | Form | Detail | Links |
|---|---|---|---|
| 6-K | Filing Doc | ||
| 6-K | Filing Doc | ||
| 6-K | Filing Doc | ||
| 6-K | Filing Doc | ||
| 20-F | Filing Doc | ||
| 6-K | Filing Doc | ||
| 6-K | Filing Doc | ||
| 6-K | Filing Doc |
No filings match this filter.
Insider forms
Form 3 / 4 / 5 from EDGAR · 12 rows shown
| Filed | Form | Detail | Links |
|---|---|---|---|
| 4 | Period Sep 9, 2026 | Filing Doc | |
| 4 | Period Aug 27, 2026 | Filing Doc | |
| 4 | Period Aug 17, 2026 | Filing Doc | |
| 4 | Period Aug 7, 2026 | Filing Doc | |
| 4 | Period Jun 2, 2026 | Filing Doc | |
| 4 | Period Jun 1, 2026 | Filing Doc | |
| 4 | Period May 28, 2026 | Filing Doc | |
| 4 | Period May 22, 2026 | Filing Doc | |
| 4 | Period May 21, 2026 · 2 forms | Filing Doc | |
| 4 | Period May 20, 2026 · 2 forms | Filing Doc | |
| 4 | Period May 19, 2026 · 2 forms | Filing Doc | |
| 4 | Period May 15, 2026 · 11 forms | Filing Doc |
ownership over time
filing count by report period · click a bar for that quarter’s holders