greeksoup/ stock research
Stock research / United States / ARM / Planned sales

Arm Holdings plc planned insider sales

In the last twelve months insiders at Arm Holdings plc filed 18 Form 144 notices of planned sales, 290,127 shares worth $56.4 million at the time of filing, from 4 sellers. The latest, filed 21 September 2026: Child Jason (officer), 10,400 shares worth $3.1 million, planned for around 21 September 2026 through Fidelity Brokerage Services LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
21 September 2026Child JasonOfficer10,400$3.1 million21 September 202610,400 shares from 21 September 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
27 August 2026Child JasonOfficer10,400$2.7 million27 August 202610,400 shares from 27 August 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
21 May 2026Eaton Charlotte ClaireOfficer11,805$3.4 million21 May 202614,905 shares from 20 May 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
20 May 2026Eaton Charlotte ClaireOfficer3,100$781,97820 May 2026No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
20 May 2026Child JasonOfficer31,920$7.2 million20 May 202631,920 shares from 20 May 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
19 May 2026Collins SpencerOfficer, Director40,941$8.8 million19 May 202640,941 shares from 19 May 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
11 May 2026Collins SpencerOfficer51,961$11.0 million11 May 202651,961 shares from 11 May 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
22 April 2026Child JasonOfficer21,280$3.8 million22 April 202621,280 shares from 22 April 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
14 April 2026Haas Rene A.Officer, Director9,299$1.5 million14 April 20269,299 shares from 14 April 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
26 March 2026Haas Rene A.Officer, Director7,986$1.3 million26 March 202631,853 shares from 25 March 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
25 March 2026Child JasonOfficer21,280$3.2 million25 March 202621,280 shares from 25 March 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
25 March 2026Haas Rene A.Officer, Director23,867$3.8 million25 March 2026No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
27 February 2026Haas Rene A.Officer, Director6,152$776,04427 February 2026No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
18 February 2026Child JasonOfficer10,640$1.4 million18 February 2026No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
30 January 2026Haas Rene A.Officer, Director6,152$653,93930 January 2026No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
31 December 2025Haas Rene A.Officer, Director6,152$678,95731 December 2025No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
28 November 2025Haas Rene A.Officer, Director6,152$827,40028 November 2025No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
19 November 2025Child JasonOfficer10,640$1.5 million19 November 2025No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?