ARM — ARM HOLDINGS PLC /UKToday's name, from the SEC's present-day ticker list — a present-day mapping, not the name as of each filing.

Congress trades
4
all time
Members · 12m
1
0 buys · 1 sells · by trade date
Latest filing
12-17
2025-12-17
Rows filed past the STOCK Act's 45-day window, stated on the row, never editorialised; both dates and the receipt stay on every row.
0
every row filed inside 45 days
13F holders
539
top 500 listed · 2026-03-31
Congress: statutory ranges, filed up to 45 days after the trade · 13F: quarter-end snapshots, filed up to 45 days lateras of 2026-10-29
Congress 4Institutional 500

Congress · disclosure timeline

By trade date · 24 months · 4 rows ▲ buy, ▼ sell; height = lower bound (log scale). Trade date, not filing date — the filing lag is in the table below.

4 dated disclosures in the window, placed by trade date; magnitudes are the disclosed lower bounds, against gridlines at $15K, $250K, $5M.

Members active in ARM

12 months · most active first Rows = number of disclosures, not dollars. Net = lower bound of the net range. Committees as of each member's latest trade in the window (roster snapshot 2026-10-29).
Members disclosing ARM in the trailing 12 months
MemberRowsNet disclosed flow for this ticker: purchases minus sales, computed as a net range on the disclosed amounts. A lower bound is provable, never a point.Number of committees the member sat on as of their latest trade date in the window, from the cc0-legislators roster snapshot. Context, never an allegation; jurisdiction overlap needs the sector join.
Cleo Fields D–LA-61−$100K to −$50.0K1

1 member

Congressional disclosures

Newest filed firstAll 4 rows ↗
Latest congressional filings mentioning ARM
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2025-12-17Cleo Fields D–LA-6SELLTraded 12-11 +6d$50K–$100K
2025-10-15Jonathan L. Jackson D–IL-1SELL SP (spouse-owned)Traded 09-02 +43d$1K–$15K
2025-08-25Jonathan L. Jackson D–IL-1BUY SP (spouse-owned)Traded 07-17 +39d$1K–$15K
2025-08-06Cleo Fields D–LA-6BUYTraded 07-16 +21d$50K–$100K

13F holders · Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt. · longs only

Top institutional holders of ARM for quarter 2026-03-31, 1–25 of 539 holders
#FilerValueSecuritiesFlagsderived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date, which this table does not show, but no document links — the EDGAR link opens the filer's 13F list·§
1DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main$1.4B1
derived ·§ EDGAR ↗
2MORGAN STANLEY$675M1
derived ·§ EDGAR ↗
3Capital Research Global Investors$638M1
derived ·§ EDGAR ↗
4SCHRODER INVESTMENT MANAGEMENT GROUP$579M1
derived ·§ EDGAR ↗
5Invesco Ltd.$447M1
derived ·§ EDGAR ↗
6FMR LLC$370M1
derived ·§ EDGAR ↗
7Alphabet Inc.$297M1
derived ·§ EDGAR ↗
8Altimeter Capital Management, LP$260M1
derived ·§ EDGAR ↗
9UBS Group AG$254M1
derived ·§ EDGAR ↗
10WELLINGTON MANAGEMENT GROUP LLP$250M1
derived ·§ EDGAR ↗
11Hyperion Asset Management Ltd$242M1
derived ·§ EDGAR ↗
12FRANKLIN RESOURCES INC$235M1
derived ·§ EDGAR ↗
13Employees Provident Fund Board$212M1
derived ·§ EDGAR ↗
14Mubadala Investment Co PJSC$208M1
derived ·§ EDGAR ↗
15BlackRock, Inc.$188M1
derived ·§ EDGAR ↗
16Capital International Investors$176M1
derived ·§ EDGAR ↗
17Robeco Schweiz AG$152M1
derived ·§ EDGAR ↗
18ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$143M1
derived ·§ EDGAR ↗
19LANSDOWNE PARTNERS (UK) LLP$142M1
derived ·§ EDGAR ↗
20BALYASNY ASSET MANAGEMENT L.P.$140M1
derived ·§ EDGAR ↗
21SUSQUEHANNA INTERNATIONAL GROUP, LLP$118M1
derived ·§ EDGAR ↗
22Janus Henderson Group Ltd.$116M1
derived ·§ EDGAR ↗
23CITIGROUP INC$114M1
derived ·§ EDGAR ↗
24FIRST TRUST ADVISORS LP$112M1
derived ·§ EDGAR ↗
25BANK OF AMERICA CORP /DE/$107M1
derived ·§ EDGAR ↗
Show the top 500 of 539 holders
Truncated by Public Filings. Top 500 of 539 holders shown; the rest are on EDGAR. Method ↗

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Congress ↔ notable managers · ARM

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Notable managers · quarter ended 2026-03-31

Trimming
1 Coatue Management $0 held

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · ARM HOLDINGS PLC

Merged timeline of congressional filings and notable-manager moves on ARM
DateWhoChangeSize
2026-05-15Altimeter Capital 13FNEW+1,715,440 sh
2026-05-15Bridgewater Associates 13FADD+267,041 sh
2026-05-15Duquesne Family Office 13FNEW+106,700 sh
2026-05-15Coatue Management 13FEXIT−2,300,000 sh

4 newest, by filing date · 13F rows are quarter-end snapshots, not trades

Congress vs filers

12 months
Congress net (rows)0 buy / 1 sell
Congress net ($ bound)−$100K to −$50.0K
Filersnot computedThe filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.