ARM HOLDINGS PLC /UK

Holding change · SEC EDGAR

This page reproduces a recorded source event. It is not a live quote, forecast, recommendation or legal conclusion.

Event type

insider.holding_change

Occurred

2026-08-17

Reported

2026-08-18

Disclosure lag

1 days

Context

links are based on the recorded entity type

Field	Recorded value
Entity	ARM HOLDINGS PLC /UK
Source	SEC EDGAR ↗
News section	companies
Source identifier	0001973239-26-000121
Source-linked related entities	bartels-laura-kathleen-2114104 · person
Event ID	#859813

Related recorded events

same canonical or source-linked entity relations

Reported	Type	Event	Source
2026-08-18	Derivative exercise	Event #859815	SEC EDGAR
2026-08-18	Derivative exercise	Event #859814	SEC EDGAR
2026-08-18	Derivative exercise	Event #859812	SEC EDGAR
2026-08-18	Derivative exercise	Event #859811	SEC EDGAR
2026-08-11	Gift	Event #641606	SEC EDGAR

Recorded payload

JSON payload as stored after parsing

{
  "accession": "0001973239-26-000121",
  "acquired_disposed": "D",
  "code": "F",
  "direct_or_indirect": "D",
  "form": "4",
  "is_derivative": false,
  "issuer_name": "ARM HOLDINGS PLC /UK",
  "label": "Shares withheld for tax",
  "person_name": "Bartels Laura Kathleen",
  "price": 271.43,
  "role": "Chief Accounting Officer",
  "security": "Ordinary Shares",
  "shares": 856,
  "shares_owned_after": 12960,
  "source_path": "edgar/data/1973239/0001973239-26-000121.txt",
  "ticker": "ARM",
  "transaction_date": "2026-08-17",
  "value": 232344.08
}

Evidence-based analysis

facts, provenance and explicit model coverage

Descriptive evidence from the stored source record; it is not advice, a forecast or a legal conclusion.

Dimension	Status / value	Method or boundary
What happened	not_covered	The source record has no short title or summary.
When	source_backed · reported 2026-08-18	Occurred 2026-08-17. Source-record timestamps; no timezone or event time is inferred.
Affected entities	resolved · ARM HOLDINGS PLC /UK · 1 related	Canonical primary entity and stored related_entity_ids only.
Event classification	insider · insider.holding_change	canonical event type plus source-provided category; no sentiment or impact is inferred
Entity linking	resolved	Canonical entity resolved during ingestion
Deduplication	applied	unique source event key at ingestion
Source trust	high · terms allowed	Source registry metadata
Sentiment	not_covered	No sentiment model output is published for this record.
Market reaction	not_covered	Requires licensed quote, candle and volume observations for the affected instrument.
Historical analogs	not_covered	Requires an audited event-cluster corpus and matching methodology.
Impact mechanism	not_covered	No causal market-impact model is published for this record.
Related risks	not_covered	Risk implications require an audited instrument/entity exposure model.
Instrument linkage	not_covered	No instrument relation is inferred from an entity event; licensed instrument mapping is required.

Source: Open recorded SEC filing

Source: SEC EDGAR · as of 2026-08-18T00:00:00Z