Insider at

04

Insider transactions

05
0 buys (P) 10 sells (S) Net: $-12,023,372 + 47 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

47 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 1, 2026 ARM S 2,644 $383.73 $1,014,582 24,485 Direct -9.75% Disposed -21.1% (price as of 2026-10-05)
June 1, 2026 ARM S 3,922 $415.52 $1,629,669 20,563 Direct -16.02% Disposed -27.1% (price as of 2026-10-05)
May 28, 2026 ARM S 4,200 $343.81 $1,444,002 27,129 Direct -13.41% Disposed -11.9% (price as of 2026-10-05)
May 22, 2026 ARM S 2,300 $305.82 $703,386 31,329 Direct -6.84% Disposed -1.0% (price as of 2026-10-05)
May 21, 2026 ARM S 4,655 $287.03 $1,336,125 33,629 Direct -12.16% Disposed 5.5% (price as of 2026-10-05)
May 20, 2026 ARM S 5,069 $257.18 $1,303,645 38,284 Direct -11.69% Disposed 17.8% (price as of 2026-10-05)
May 19, 2026 ARM S 10,887 $224.14 $2,440,212 43,353 Direct -20.07% Disposed 35.1% (price as of 2026-10-05)
May 15, 2026 ARM S 10b5-1 7,000 $212.55 $1,487,850 57,394 Direct -10.87% Disposed 42.5% (price as of 2026-10-05)
April 24, 2026 ARM S 10b5-1 1,577 $221.99 $350,078 55,817 Direct -2.75% Disposed 36.4% (price as of 2026-10-05)
April 23, 2026 ARM S 10b5-1 1,577 $199.00 $313,823 54,240 Direct -2.83% Disposed 52.2% (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Sept. 30, 2026 NPO Phantom Stock Common Stock (82) · · 82 Acquired
Sept. 16, 2026 NPO Phantom Stock Common Stock (2) · · 2 Acquired
Sept. 14, 2026 ARM Restricted Stock Units Ordinary Shares [F3] (17,288) · · 17,288 Acquired
June 30, 2026 NPO Phantom Stock Common Stock (66) · · 66 Acquired
June 17, 2026 NPO Phantom Stock Common Stock (1) · · 1 Acquired
May 15, 2026 ARM Restricted Stock Units Ordinary Shares (5,566) · · 5,566 Acquired
May 15, 2026 ARM Restricted Stock Units Ordinary Shares (1,751) · · 1,751 Disposed
May 15, 2026 ARM Restricted Stock Units Ordinary Shares (1,743) · · 1,743 Disposed
May 15, 2026 ARM Restricted Stock Units Ordinary Shares (4,706) · · 4,706 Disposed
March 31, 2026 NPO Phantom Stock Common Stock (100) · · 100 Acquired
March 18, 2026 NPO Phantom Stock Common Stock (2) · · 2 Acquired
Dec. 31, 2025 NPO Phantom Stock Common Stock (117) · · 117 Acquired
Dec. 17, 2025 NPO Phantom Stock Common Stock (2) · · 2 Acquired
Sept. 30, 2025 NPO Phantom Stock Common Stock (111) · · 111 Acquired
Sept. 17, 2025 NPO Phantom Stock Common Stock (2) · · 2 Acquired
June 30, 2025 NPO Phantom Stock Common Stock (131) · · 131 Acquired
June 18, 2025 NPO Phantom Stock Common Stock (2) · · 2 Acquired
March 31, 2025 NPO Phantom Stock Common Stock (155) · · 155 Acquired
March 19, 2025 NPO Phantom Stock Common Stock (2) · · 2 Acquired
Dec. 31, 2024 NPO Phantom Stock Common Stock (145) · · 145 Acquired
Dec. 18, 2024 NPO Phantom Stock Common Stock (1) · · 1 Acquired
Sept. 30, 2024 NPO Phantom Stock Common Stock (154) · · 154 Acquired
Sept. 18, 2024 NPO Phantom Stock Common Stock (1) · · 1 Acquired
June 30, 2024 NPO Phantom Stock Common Stock (172) · · 172 Acquired
June 20, 2024 NPO Phantom Stock Common Stock (1) · · 1 Acquired
March 31, 2024 NPO Phantom Stock Common Stock (148) · · 148 Acquired
March 20, 2024 NPO Phantom Stock Common Stock (1) · · 1 Acquired
Feb. 15, 2024 NPO Phantom Stock Common Stock (803) · · 803 Acquired
Dec. 13, 2023 NPO Phantom Stock Common Stock (1) · · 1 Acquired
Sept. 13, 2023 NPO Phantom Stock Common Stock (1) · · 1 Acquired
June 14, 2023 NPO Phantom Stock Common Stock (1) · · 1 Acquired
March 15, 2023 NPO Phantom Stock Common Stock (1) · · 1 Acquired
Dec. 31, 2022 NPO Phantom Stock Common Stock (207) · · 207 Acquired
Dec. 14, 2022 NPO Phantom Stock Common Stock (0) · · 0 Acquired
Sept. 30, 2022 NPO Phantom Stock Common Stock (76) · · 76 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 5 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
March 18, 2026 ARM Ordinary Shares [F1] 48,201 Direct
March 18, 2026 ARM Restricted Stock Units→ Ordinary Shares [F1] (36,005) 36,005 Direct
March 18, 2026 ARM Restricted Stock Units→ Ordinary Shares [F1] (5,838) 5,838 Direct
March 18, 2026 ARM Restricted Stock Units→ Ordinary Shares [F1] (4,067) 4,067 Direct
March 18, 2026 ARM Restricted Stock Units→ Ordinary Shares [F1] (4,706) 4,706 Direct