Simplex Trading, LLC
- SEC CIK
- 0001488542
- Latest filing
- Aug 12, 2026
ARM holding history
Arm Holdings PLC in every 13F filed by Simplex Trading, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
ARM overviewAll 13F holders of ARMFull Q2 2026 holdings
- Shares (Q2 2026)
- 2,428
- Value
- $860.9K
- % of portfolio
- <0.1%
- Quarters held
- 8
- Since Q2 2024
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 2,428 | $860.9K | <0.1% | −29,037−92.3% | Reduced | Holders |
| Q1 2026 | 31,465 | $4.76M | 0.1% | −121,951−79.5% | Reduced | Holders |
| Q4 2025 | 153,416 | $16.8M | 0.5% | +126,380+467.5% | Added | Holders |
| Q3 2025 | 27,036 | $3.83M | 0.1% | +27,036 | New | Holders |
| Q2 2025 | 0 | $0 | 0.0% | −252,824−100.0% | Sold out | Holders |
| Q1 2025 | 252,824 | $27.0M | 1.0% | +67,022+36.1% | Added | Holders |
| Q4 2024 | 185,802 | $22.9M | 0.6% | −81,947−30.6% | Reduced | Holders |
| Q3 2024 | 267,749 | $38.3M | 1.3% | +122,552+84.4% | Added | Holders |
| Q2 2024 | 145,197 | $23.8M | 0.8% | +145,197 | New | Holders |