ARM Arm Holdings plc

NASDAQ
$264.90

Arm Holdings plc (ARM) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with ARM's own trailing one-year pace, with 35% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 1 seller in the last 90 days
Insiders buying
0
0 transactions
Insiders selling
7
40 transactions
Purchases
$0
0 shares
Sales
$69.0M
313,315 shares
Net activity
-$69.0M
purchases less sales

How much of that selling was preplanned? 35% planned / 65% discretionary

10b5-1 plan sales $24.2M 17 transactions · 129,186 shares
Discretionary sales $44.9M 23 transactions · 184,129 shares

Largest single sale: $8.8M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

No open-market insider purchase on record.

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Child Jason Chief Financial Officer Sell 10b5-1 10,400 $255.33 $2.7M 163,832 −6% of holding
Bartels Laura Kathleen Chief Accounting Officer Sell 11,306 $392.70 $4.4M 12,135 −48.2% of holding
Abbey William 2 fills Chief Commercial Officer Sell 6,566 $402.72 $2.6M 24,485 −21.1% of holding
Abbey William Chief Commercial Officer Sell 4,200 $343.81 $1.4M 27,129 −13.4% of holding
Abbey William Chief Commercial Officer Sell 2,300 $305.82 $703.4K 31,329 −6.8% of holding
Eaton Charlotte Claire 3 fills Chief People Officer Sell 11,805 $287.56 $3.4M 7,805 −60.2% of holding
Abbey William Chief Commercial Officer Sell 4,655 $287.03 $1.3M 33,629 −12.2% of holding
Child Jason Chief Financial Officer Sell 10b5-1 31,920 $226.54 $7.2M 174,232 −15.5% of holding
Abbey William Chief Commercial Officer Sell 5,069 $257.18 $1.3M 38,284 −11.7% of holding
Eaton Charlotte Claire Chief People Officer Sell 3,100 $252.25 $782.0K 11,805 −20.8% of holding
Collins Spencer Chief Legal Officer Sell 40,941 $215.00 $8.8M None left
Abbey William Chief Commercial Officer Sell 10,887 $224.14 $2.4M 43,353 −20.1% of holding
Grisenthwaite Richard Roy Chief Architect Sell 24,339 $209.15 $5.1M None left
Abbey William Chief Commercial Officer Sell 7,000 $212.55 $1.5M 57,394 −10.9% of holding
Collins Spencer 8 fills Chief Legal Officer Sell 51,961 $211.73 $11.0M 51,125 −50.4% of holding
Abbey William Chief Commercial Officer Sell 10b5-1 1,577 $221.99 $350.1K 55,817 −2.7% of holding
Abbey William Chief Commercial Officer Sell 10b5-1 1,577 $199.00 $313.8K 54,240 −2.8% of holding
Child Jason Chief Financial Officer Sell 10b5-1 21,280 $180.00 $3.8M 153,426 −12.2% of holding
Haas Rene A. 3 fills Chief Executive Officer Sell 10b5-1 9,299 $160.85 $1.5M 277,333 −3.2% of holding
Haas Rene A. 4 fills Chief Executive Officer Sell 10b5-1 7,986 $160.86 $1.3M 290,765 −2.7% of holding
Haas Rene A. 4 fills Chief Executive Officer Sell 10b5-1 23,867 $161.17 $3.8M 313,740 −7.1% of holding
Child Jason Chief Financial Officer Sell 10b5-1 21,280 $148.37 $3.2M 174,706 −10.9% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.