Quantum Computing Inc. (QUBT) Institutional Ownership & Insider Trading

313 institutions reported holding Quantum Computing Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 3 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

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Computer Hardware · Technology

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Market cap: 1.5B
P/E TTM: —
Dividend yield: —
52-week: —
Next earnings: 12 Nov, in 19 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

313 institutions held 45.5% of the shares. Across filers that reported both quarters, shares held changed +10.8%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	313	103	+10.8%	121	56	54	36
Mar 26	293	93	-9.0%	97	48	68	37
Dec 25	283	98	+4.4%	128	63	46	45
Sep 25	252	91	+59.4%	97	71	44	32
Jun 25	220	56	+148.3%	80	81	26	27
Mar 25	163	22	+1.9%	46	76	16	30
Dec 24	121	22	—	—	—	—	—
Sep 24	34	4	-2.0%	8	4	9	15

Quantum Computing Inc. — questions

Who owns Quantum Computing Inc. stock?: 313 institutions reported Quantum Computing Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (7.8%), VANGUARD CAPITAL MANAGEMENT LLC (3.9%), Defiance ETFs, LLC (3.1%).
Are Quantum Computing Inc. insiders buying or selling?: 3 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Quantum Computing Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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