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Public ownership evidence

Arqit Quantum Inc. Ordinary Shares (ARQQ) Ownership Disclosures

Read ARQQ insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-10-212026-10-15Lefebvre d'Ovidio ManfrediA817Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-15 and its public availability date is 2026-10-21. Subtracting those calendar dates gives 6 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001859690-26-000196 ↗SEC 0001859690-26-000195 ↗SEC 0001859690-26-000194 ↗

Recent Form 4 activity

Inspect all 30 displayed rows: Recent Form 4 activity

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2026-10-212026-10-15Lefebvre d'Ovidio ManfrediA817Not reported
2026-10-202026-10-15Calabria CarloA919Not reported
2026-10-202026-10-15Ritchie GarthA1,021Not reported
2026-10-152026-10-13Leaver AndrewS2,573Not reported
2026-10-082026-10-06Wilder Ben SimonS218Not reported
2026-10-082026-10-06Nilan Nicholas WilliamS493Not reported
2026-10-082026-10-06Ritchie GarthS118Not reported
2026-10-082026-10-06Willcocks PatrickS555Not reported
2026-10-082026-10-06Feenan PaulS504Not reported
2026-10-082026-10-06Leaver AndrewS2,398Not reported
2026-10-072026-10-05Leaver AndrewS2,535Not reported
2026-10-072026-10-05Feenan PaulS533Not reported
2026-10-072026-10-05Nilan Nicholas WilliamS522Not reported
2026-10-072026-10-05Ritchie GarthS127Not reported
2026-10-072026-10-05Wilder Ben SimonS233Not reported
2026-10-072026-10-05Willcocks PatrickS588Not reported
2026-10-062026-10-02Willcocks PatrickS321Not reported
2026-10-062026-10-02Willcocks PatrickS70Not reported
2026-10-062026-10-02Willcocks PatrickS166Not reported
2026-10-062026-10-02Wilder Ben SimonS129Not reported
2026-10-062026-10-02Wilder Ben SimonS92Not reported
2026-10-062026-10-02Ritchie GarthS40Not reported
2026-10-062026-10-02Ritchie GarthS40Not reported
2026-10-062026-10-02Ritchie GarthS9Not reported
2026-10-062026-10-02Ritchie GarthS32Not reported
2026-10-062026-10-02Nilan Nicholas WilliamS494Not reported
2026-10-062026-10-02Leaver AndrewS2,818Not reported
2026-10-062026-10-02Feenan PaulS257Not reported
2026-10-062026-10-02Feenan PaulS175Not reported
2026-10-062026-10-02Feenan PaulS74Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

Show the table · 0 rows, 5 columns

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.