ARM
−$4.44M
11,306 sh @ $393
ARM
ARM HOLDINGS PLC /UK
SEC CIK 1973239
$342.23
+227.3% · 90 days
90-day buys
$0
0 open-market
90-day sells
$56.6M
27 open-market
Net insider flow
−$56.6M
Net selling
Filings shown
46
Most recent
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At a glance
Over the last 90 days, insiders at ARM have sold a net $56.6M of stock (0 open-market buys vs 27 sells).
Largest recent trade: Collins Spencer sold $8.8M of ARM, trimming their stake 100%.
Most active filer: Abbey William, with 12 transactions among the recent filings shown.
Insider transaction history
Form 4 filings for ARM, newest firstARM
−$1.01M
2,644 sh @ $384
ARM
−$1.63M
3,922 sh @ $416
ARM
−$1.44M
4,200 sh @ $344
ARM
−$703.4K
2,300 sh @ $306
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ARM
−$1.34M
4,655 sh @ $287
ARM
−$808.1K
2,805 sh @ $288
ARM
−$1.46M
5,000 sh @ $291
ARM
−$1.13M
4,000 sh @ $283
ARM
−$1.3M
5,069 sh @ $257
ARM
−$7.23M
31,920 sh @ $227
ARM
−$782K
3,100 sh @ $252
ARM
−$8.8M
40,941 sh @ $215
ARM
−$2.44M
10,887 sh @ $224
ARM
−$5.09M
24,339 sh @ $209
ARM
+$0
2,308 sh
ARM
−$707.6K
3,383 sh @ $209
ARM
+$0
4,706 sh
ARM
−$3.2M
15,317 sh @ $209
ARM
−$1.49M
7,000 sh @ $213
ARM
+$0
4,352 sh
ARM
−$4.46M
21,301 sh @ $209
ARM
+$0
48,378 sh
ARM
−$7.59M
36,310 sh @ $209
ARM
+$0
2,200 sh
ARM
−$768K
3,672 sh @ $209
ARM
+$0
162,000 sh
ARM
−$29.98M
143,316 sh @ $209
ARM
+$0
57,601 sh
ARM
−$7.94M
37,950 sh @ $209
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About ARM insider activity
This page tracks every recent Form 4 filed for ARM HOLDINGS PLC /UK with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.
The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.
Frequently asked questions
How often is ARM insider data updated?
Continuously. We read from SEC EDGAR, so new Form 4 filings for ARM HOLDINGS PLC /UK usually appear here within minutes of being accepted by the SEC.
What does "net insider flow" mean?
It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.
Why do some rows show grants or option exercises instead of buys?
Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.
Is this investment advice?
No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.