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ARM · Arm Holdings Plc /Uk
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TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475
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ARM

ARM HOLDINGS PLC /UK
SEMICONDUCTORS & ELECTRONICS · SEMICONDUCTORS & RELATED DEVICES · CIK 0001973239
FORM 144 · 1☆ WATCH
INSIDER NET · 180D
-$69.0M
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
0
CONGRESS BUYERS · 1Y
0
FUNDS ADDED · QTR
600
13F, latest reported quarter
REVENUE GROWTH
+22.8%
XBRL, annual
NET MARGIN
18.4%
CONVERSIONS · 180D
21
codes C/M, not in net · no price filed
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$69.0M over 180 days
-$2.7M over 90 days
below 85% of Semiconductors & Electronics
CONGRESS
no member of Congress has reported trading it
FUNDS
600 funds added or opened last quarter
more than 90% of Semiconductors & Electronics
REVENUE
+22.8% year over year
more than 69% of Semiconductors & Electronics
MARGIN
18.4% net margin
more than 89% of Semiconductors & Electronics
BUYBACKS
no share repurchases reported
SHORT
1.6% of shares outstanding short · 2.6 days to cover · settled 2026-07-31
below 72% of Semiconductors & Electronics
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$69.0M across 7 people in 180 days.
600 funds added or opened positions in the latest 13F quarter, of 963 holders.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN +83.3%
+83.3%12M
-21%+63%+148%+232%2025-092025-102025-122026-032026-052026-072026-09 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 $3.2M2026-08-27 · 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 $27.7K2026-08-27 · Child Jason filed to sell $2.7M
INSIDER SELLFORM 144
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
Insiders have filed to sell — before selling.
The record shows a net $69.0M sold by insiders over 180 days, 600 funds added last quarter, $2.7M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, ARM HOLDINGS PLC /UK insiders sold a net $69.0M of stock across 40 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-04.

INSIDER
FILED
SHARES
VALUE
Child Jason
Chief Financial Officer
SELL
2026-08-27
10,400.0
$2.7M
Bartels Laura Kathleen
Chief Accounting Officer
SELL
2026-06-02
11,306.0
$4.4M
Abbey William
Chief Commercial Officer
SELL
2026-06-01
3,922.0
$1.6M
Abbey William
Chief Commercial Officer
SELL
2026-06-01
2,644.0
$1.0M
Abbey William
Chief Commercial Officer
SELL
2026-05-28
4,200.0
$1.4M
40 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 35 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders
13F · holdings as of the latest quarter funds have reported
Invesco Ltd.
12,816,588.0 sh
$4.5B
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main
6,504,147.0 sh
$2.3B
Capital World Investors
4,330,875.0 sh
$1.5B
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
4,094,696.0 sh
$1.5B
FMR LLC
4,062,977.0 sh
$1.4B
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
Planned sales · Form 144
Filed before the sale — intent, not a trade
Child Jason
FILED 2026-08-27
$2.7M
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
Renaissance IPO ETF
$8.9M POSITION · AS OF 2026-03-31
7.5%
VanEck Fabless Semiconductor ETF
$8.9M POSITION · AS OF 2026-03-31
5.8%
Yieldmax Target 12 Semiconductor Option Income ETF
$2.6M POSITION · AS OF 2026-04-30
5.3%
Loomis Sayles International Growth Fund
$1.1M POSITION · AS OF 2026-03-31
5.2%
REX AI Equity Premium Income ETF
$19.2M POSITION · AS OF 2026-02-28
5.1%
Pacer Data and Digital Revolution ETF
$29.9M POSITION · AS OF 2026-04-30
4.9%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
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-YEAR PERIODS · AS KNOWN ON 2026-09-04 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

SEC FORM 4FORM 13F 13D/GFORM 144XBRL STOCK ACTCONTRACTSFEC CFPBNRC
© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-04 ALL SYSTEMS LIVE FOR MACHINES →