Welcome to our dedicated page for Arqit Quantum SEC filings (Ticker: ARQQW), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Trying to gauge whether Arqit Quantum’s quantum-safe encryption is scaling or how new warrant conversions might affect dilution? Every clue hides inside Arqit Quantum Inc’s SEC disclosures, from satellite launch costs to QuantumCloud subscription metrics—yet those details span hundreds of dense pages and constant Form 4 updates.
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Amendment No. 5 to Schedule 13D updates the holdings and recent warrant transactions by Heritage Assets SCSp, M Management S.A. and Manfredi Lefebvre d'Ovidio (the Reporting Persons) in Arqit Quantum Inc. The Reporting Persons now beneficially own 10,273,245 Ordinary Shares, representing approximately 49.6% of the outstanding Ordinary Shares on a post-reverse-split basis. The amendment discloses open-market sales of Business Combination Warrants across multiple dates at average prices ranging from $7.6 to $69.4. It also reports that on August 1, 2025 warrants purchased in September 2024 became exercisable for up to 4,600,000 Ordinary Shares, increasing aggregate reported ownership by over 1%.
Arqit Quantum Inc. (ARQQW) filed a Form 144 disclosing that Patrick Willcocks intends to sell 3,000 common shares through Fidelity Brokerage on or about 21 Jul 2025. The shares were obtained via a stock-option exercise on 13 Feb 2025 and carry an aggregate market value of $150,000. With 11,545,354 shares outstanding, the planned sale equals roughly 0.026 % of the float.
The filing also lists prior insider activity: Willcocks sold 8,373 shares between 23 Jun 2025 and 18 Jul 2025 for total gross proceeds of about $331 k. Adding the proposed sale would raise his 90-day disposals to 11,373 shares, or ≈0.10 % of shares outstanding.
No adverse information about Arqit’s operations is asserted, and the sale appears to be routine liquidity following option exercise. Nonetheless, investors may monitor the continued selling cadence as a sentiment signal.
Form 144 filing details
An affiliate of Arqit Quantum Inc. (symbol: ARQQW) has filed a Form 144 indicating an intention to sell up to 333 common shares through Fidelity Brokerage Services LLC on the NASDAQ exchange. The shares have an aggregate market value of $11,005.72 and represent roughly 0.0029 % of the 11,545,354 shares outstanding.
The seller acquired the shares on 07/01/2025 via restricted-stock vesting received as compensation. No other sales have occurred in the past three months, and the filer certifies that no undisclosed adverse information is known. The approximate sale date listed is 07/07/2025.
Given the small size of the transaction, this notice is unlikely to have a measurable effect on the company’s share price or float. Investors typically view Form 144 filings as neutral routine disclosures unless the volume represents a significant percentage of outstanding shares, which is not the case here.
Arqit Quantum has filed a Form 144 notice for the proposed sale of securities by an insider. The filing details a planned sale of 3,000 common shares with an aggregate market value of $120,385.18 through Fidelity Brokerage Services on NASDAQ, scheduled for June 25, 2025.
The securities to be sold were acquired through two transactions:
- 2,874 shares via stock option exercise on May 24, 2024, purchased with cash
- 126 shares from restricted stock vesting on July 1, 2024, received as compensation
The seller, Patrick Willcocks, has conducted two previous sales in the past 3 months:
- 532 shares on April 2, 2025 ($7,346.03)
- 3,000 shares on June 23, 2025 ($110,700.00)
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