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ARM · Arm Holdings Plc /Uk
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ARM ARM (ARM) Insider Trading, Ownership & Congress Trades

Semiconductors & Electronics · Semiconductors & related devices · CIK 0001973239
Quote by TradingView
Form 144 · 2
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
603
13F, latest reported quarter
Conversions, 180 days
21
Codes C/M, not in net · no price filed

What the filings say about ARM

Insiders, 180 days
-$57.9M net sold
6 sellers · 8% of sales under a 10b5-1 plan
Congress, 1 year
0 bought · 1 sold
Latest: sale, 2025-12-11
Planned sales (Form 144), 90 days
$5.8M
2 notices

ARM insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, ARM HOLDINGS PLC /UK insiders sold a net $57.9M of stock across 41 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-27.

Foreign private issuer: most of its insiders are exempt from SEC Form 4, but some still file it; those filings are listed below, and the record may be incomplete.

Insider
Filed
Shares
Value
Since filing
Child Jason
Chief Financial Officer
SELL
2026-09-23 SECtraded 2026-09-21
10,400
$3.1M
-27.1%
Context
  • 4 earlier Form 4 trades (code P or S) here by this insider (4 sales), the last on Aug 27, 2026.
  • The trade is 6.8% of the 153,442 shares held after it.
  • No other insider sold within 30 days.
  • 603 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Financial Officer Child Jason sold about $3.1M of ARM under a 10b5-1 plan on Sep 21, 2026; 603 funds added in the latest 13F quarter.
Child Jason
Chief Financial Officer
SELL
2026-08-31 SECtraded 2026-08-27
10,400
$2.7M
-4.9%
Context
  • 3 earlier Form 4 trades (code P or S) here by this insider (3 sales), the last on May 20, 2026.
  • The trade is 6.3% of the 163,832 shares held after it.
  • No other insider sold within 30 days.
  • 603 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Financial Officer Child Jason sold about $2.7M of ARM under a 10b5-1 plan on Aug 27, 2026; 603 funds added in the latest 13F quarter.
Bartels Laura Kathleen
Chief Accounting Officer
SELL
2026-06-04 SECtraded 2026-06-02
11,306
$4.4M
-34.9%
Context
  • First Form 4 purchase or sale (code P or S) here by this insider on our record.
  • The trade is 93.2% of the 12,135 shares held after it.
  • 5 other insiders sold within 30 days.
  • 603 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Accounting Officer Bartels Laura Kathleen sold about $4.4M of ARM on Jun 2, 2026; 5 other insiders sold within 30 days and 603 funds added in the latest 13F quarter.
Abbey William
Chief Commercial Officer
SELL
2026-06-03 SECtraded 2026-06-01
3,922
$1.6M
-43.2%
Context
  • 8 earlier Form 4 trades (code P or S) here by this insider (8 sales), the last on May 28, 2026.
  • The trade is 19.1% of the 20,563 shares held after it.
  • 5 other insiders sold within 30 days.
  • 603 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Commercial Officer Abbey William sold about $1.6M of ARM on Jun 1, 2026; 5 other insiders sold within 30 days and 603 funds added in the latest 13F quarter.
Abbey William
Chief Commercial Officer
SELL
2026-06-03 SECtraded 2026-06-01
2,644
$1.0M
-43.2%
Context
  • 8 earlier Form 4 trades (code P or S) here by this insider (8 sales), the last on May 28, 2026.
  • The trade is 10.8% of the 24,485 shares held after it.
  • 5 other insiders sold within 30 days.
  • 603 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Commercial Officer Abbey William sold about $1.0M of ARM on Jun 1, 2026; 5 other insiders sold within 30 days and 603 funds added in the latest 13F quarter.
41 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
Showing the latest few. to see 36 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$57.9M over 180 days
-$5.8M over 90 days
below 81% of Semiconductors & Electronics
Congress
no House purchase disclosed in the last 12 months
Funds
603 funds bought in last quarter
more than 88% of Semiconductors & Electronics
Revenue
+22.8% year over year
more than 65% of Semiconductors & Electronics
Margin
18.4% net margin
more than 87% of Semiconductors & Electronics
Buybacks
no share repurchases reported
Short interest
11.3% of the float short (float per yahoo 2026-10-26) · 2.3 days to cover · settled 2026-09-30
below 75% of Semiconductors & Electronics
What changed in the last 30 days
Nothing new filed in the last 30 days

Watch ARM

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+34.8%12M
-37%+30%+98%+165%2025-102025-122026-022026-042026-062026-082026-10 2026-05-19 · Collins Spencer sold $8.8M2026-05-20 · Child Jason sold $7.2M2026-05-18 · Grisenthwaite Richard Roy sold $5.1M2026-06-02 · Bartels Laura Kathleen sold $4.4M2026-04-22 · Child Jason sold $3.8M2026-03-25 · Child Jason sold $3.2M2026-09-21 · Child Jason sold $3.1M2026-08-27 · Child Jason sold $2.7M2026-05-19 · Abbey William sold $2.4M2026-05-11 · Collins Spencer sold $2.4M2026-05-11 · Collins Spencer sold $2.3M2026-05-11 · Collins Spencer sold $2.1M2026-03-25 · Haas Rene A. sold $1.9M2026-06-01 · Abbey William sold $1.6M2026-05-11 · Collins Spencer sold $1.6M2026-05-15 · Abbey William sold $1.5M2026-05-21 · Eaton Charlotte Claire sold $1.5M2026-05-28 · Abbey William sold $1.4M2026-05-21 · Abbey William sold $1.3M2026-05-20 · Abbey William sold $1.3M2026-05-21 · Eaton Charlotte Claire sold $1.1M2026-05-11 · Collins Spencer sold $1.1M2026-05-11 · Collins Spencer sold $1.0M2026-06-01 · Abbey William sold $1.0M2026-03-25 · Haas Rene A. sold $1.0M2026-04-14 · Haas Rene A. sold $906.6K2026-03-26 · Haas Rene A. sold $857.2K2026-05-21 · Eaton Charlotte Claire sold $808.1K2026-03-25 · Haas Rene A. sold $785.5K2026-05-20 · Eaton Charlotte Claire sold $782.0K2026-05-22 · Abbey William sold $703.4K2026-04-14 · Haas Rene A. sold $561.5K2026-05-11 · Collins Spencer sold $385.8K2026-04-24 · Abbey William sold $350.1K2026-04-23 · Abbey William sold $313.8K2026-03-26 · Haas Rene A. sold $297.4K2026-03-25 · Haas Rene A. sold $178.4K2026-05-11 · Collins Spencer sold $173.7K2026-03-26 · Haas Rene A. sold $97.3K2026-03-26 · Haas Rene A. sold $32.6K2026-04-14 · Haas Rene A. sold $27.7K2026-09-21 · Child Jason filed to sell $3.1M2026-08-27 · Child Jason filed to sell $2.7M
Insider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns ARM: institutional holders (13F)

13F holdings, latest reported quarter
Invesco Ltd.
12,816,588 sh
$4.5B
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main
6,504,147 sh
$2.3B
Capital World Investors
4,330,875 sh
$1.5B
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
4,094,696 sh
$1.5B
FMR LLC
4,062,977 sh
$1.4B

Congress trades in ARM

STOCK Act disclosures, US House only, filed up to 45 days after the trade
Cleo Fields
Sold 2025-12-11 · disclosed 6 days later
$50,001 - $100,000
Jonathan Jackson
Sold 2025-09-02 · disclosed 43 days later
$1,001 - $15,000
Jonathan Jackson
Bought 2025-07-17 · disclosed 39 days later
$1,001 - $15,000
Cleo Fields
Bought 2025-07-16 · disclosed 21 days later
$50,001 - $100,000
All stocks members of Congress are buying · Every member's trades

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

ARM planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
Child Jason
Filed 2026-09-21
$3.1M
Child Jason
Filed 2026-08-27
$2.7M

ARM mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Roundhill ARM WeeklyPay ETF
$5.6M position · as of 2026-06-30
22.6%
PROFUND VP EUROPE 30
$1.6M position · as of 2026-06-30
9.6%
Renaissance IPO ETF
$15.8M position · as of 2026-06-30
8.7%
Neuberger Disrupters ETF
$3.1M position · as of 2026-05-31
8.7%
ProShares Nasdaq-100 Dorsey Wright Momentum ETF
$3.8M position · as of 2026-05-31
8.5%
Cromwell Tran Focus Fund
$2.0M position · as of 2026-06-30
8.4%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $57.9M sold by insiders over 180 days, 603 funds added last quarter, $5.8M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
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ARM financials

Revenue growth
+22.8%
XBRL, annual
Net margin
18.4%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$5.2B
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
+20.2%
net income over revenue, 2025-07-01 to 2026-06-30
Free cash flow, TTM
$1.5B
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
n/a
no debt line filed
Cash flow to debt
n/a
no debt line filed
Return on equity
+13.4%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
+10.1%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
n/a
no debt line filed
Return on capital employed
+9.6%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
P/E, trailing
227.91x
close 2026-10-26 over four quarters of diluted EPS, 2025-07-01 to 2026-06-30
Enterprise value
n/a
no debt line filed
FCF yield
+0.6%
TTM free cash flow over market value at close 2026-10-26
PEG, trailing
4.70x
P/E over trailing EPS growth of 48%: four quarters to 2026-06-30 against the four to 2025-06-30
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2026-032025-032024-032023-03
Revenue$4.9B$4.0B$3.2B$2.7B
Gross profit$4.8B$3.9B$3.1B$2.6B
Operating income$900.0M$831.0M$111.0M$671.0M
Net income$904.0M$792.0M$306.0M$524.0M
EPS (diluted)0.850.750.290.51
Operating cash flow$1.5B$397.0M$1.1B$739.0M
Cash$2.8B$2.1B$1.9B$1.6B
SEC XBRL, fiscal years, as known on 2026-10-27

ARM Stock Sonar score 5/7 axes

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ARM ranks highest on profitability (74th percentile) and growth (51st), and lowest on insider conviction (10th), among Semiconductors & Electronics peers.

ProfitGrowthInsidersInstitutionsRisk
Profitability
74
Inputs
  • Return on equity+13.4% · 71 pct, sector of 154
  • Return on assets+10.1% · 80 pct, sector of 171
  • Return on invested capitalno debt line filed
  • Return on capital employed+9.6% · 69 pct, sector of 155
Growth
51
Inputs
  • Revenue growth, YoY+22.8% · 65 pct, sector of 194
  • Backlog growth, YoY-4.9% · 36 pct, sector of 51
Insider conviction
10
Inputs
  • Net Form 4 buying (codes P and S), 180d-$52.1M · 20 pct, sector of 147
  • Insider buyers, 180d0 · 0 pct, sector of 151
Institutional and government
50
Inputs
  • Funds adding, latest quarter603 · 88 pct, sector of 184
  • Congress net buyers, 365d-1 · 3 pct, sector of 40
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quarters$480K · 60 pct, sector of 53
Risk and compliance
27
Inputs
  • Short interest, % of float+11.3% · 27 pct, sector of 221
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-Kneeds two 10-Ks with a Risk Factors section (not 20-F filers or stubs)
2 not measured: Financial health, US patents
  • Financial health needs 1 of 2 inputs, 0 present: no debt line filed
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

ARM filings, in plain words

Are ARM insiders buying or selling ARM?

In the 180 days to 2026-10-27, ARM insiders were net sellers, a net $57.9M across purchases and sales reported on Form 4, by 6 sellers.

Have members of Congress traded ARM?

Yes. In the year to 2026-10-27, 0 House members disclosed buying ARM and 1 House member disclosed selling it; the latest on record is a sale by Cleo Fields dated 2025-12-11.

Are there planned insider sales of ARM?

Yes. 2 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-27, covering $5.8M of stock; the latest, by Child Jason, was filed 2026-09-21.

Read the full summary

In the 180 days to 2026-10-27, ARM insiders were net sellers of ARM, a net $57.9M across purchases and sales reported on Form 4 by 6 sellers. 8% of the 26 insider sales were made under a Rule 10b5-1 plan; the rest were not flagged as planned. In the year to 2026-10-27, 0 members of Congress disclosed buying ARM and 1 member disclosed selling it; the latest on record is a sale by Cleo Fields dated 2025-12-11. Insiders filed 2 Form 144 notices of intent to sell in the 90 days to 2026-10-27, covering $5.8M of stock. Each figure is counted from SEC and House filings as of 2026-10-27, dated the day the filing was made public.

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