Who owns Quantum Computing Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of QUBT from SEC Form 13F filings across 313 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 313 institutions disclosed 102.8M shares of Quantum Computing Inc. worth $994.9M — about 45.8% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
313
13F holders
$994.9M
value, 2026 filers
45.8%
of shares outstanding (102.8M sh)
69
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of QUBT's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 17.7M | $172.0M | 0.0% | 7.9% | +9.9% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 8.8M | $85.8M | 0.0% | 3.9% | +1.0% |
| 3 | Defiance ETFs, LLC | 7.0M | $66.3M | 0.9% | 3.1% | +56.5% |
| 4 | Penserra Capital Management LLC | 7.0M | $67.7M | 0.5% | 3.1% | +108.3% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 6.6M | $63.7M | 0.0% | 2.9% | -2.1% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 5.3M | $51.6M | 0.0% | 2.4% | +13.2% |
| 7 | STATE STREET CORP | 4.9M | $47.7M | 0.0% | 2.2% | +9.0% |
| 8 | MORGAN STANLEY | 3.3M | $31.9M | 0.0% | 1.5% | +41.9% |
| 9 | Marex Group Ltd | 2.3M | $22.3M | 0.1% | 1% | -48.7% |
| 10 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 2.3M | $22.1M | 0.0% | 1% | +3.1% |
| 11 | UBS Group AG | 2.0M | $19.8M | 0.0% | 0.9% | +55.4% |
| 12 | Bank of New York Mellon Corp | 2.0M | $19.2M | 0.0% | 0.9% | +93.2% |
| 13 | NORTHERN TRUST CORP | 1.8M | $17.6M | 0.0% | 0.8% | +7.5% |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.6M | $15.9M | 0.0% | 0.7% | +10.0% |
| 15 | Mubadala Investment Co PJSC | 1.6M | $15.4M | 0.0% | 0.7% | 0.0% |
| 16 | CAPITAL FUND MANAGEMENT S.A. | 1.5M | $14.6M | 0.1% | 0.7% | -11.5% |
| 17 | NATIONAL BANK OF CANADA /FI/ | 1.5M | $14.1M | 0.0% | 0.6% | +948.0% |
| 18 | Clear Street Group Inc. | 1.4M | $13.9M | 0.0% | 0.6% | +69.6% |
| 19 | VAN ECK ASSOCIATES CORP | 1.3M | $12.8M | 0.0% | 0.6% | +35.6% |
| 20 | VANGUARD FIDUCIARY TRUST CO | 1.3M | $12.6M | 0.0% | 0.6% | -3.1% |
| 21 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.2M | $11.4M | 0.0% | 0.5% | +70.5% |
| 22 | BNP PARIBAS FINANCIAL MARKETS | 1.1M | $10.4M | 0.0% | 0.5% | +214.1% |
| 23 | RAYMOND JAMES FINANCIAL INC | 1.0M | $10.1M | 0.0% | 0.5% | +31.4% |
| 24 | Pacific Heights Asset Management LLC | 1.0M | $9.7M | 0.3% | 0.4% | 0.0% |
| 25 | Focus Financial Network, Inc. | 911,635 | $8.8M | 0.3% | 0.4% | +402.6% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.