Who owns Quantum Computing, Inc.?
Institutional ownership of QUBT from SEC Form 13F filings across 251 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.
251
13F holders
$821.8M
value, 2026 filers
41.3%
of shares outstanding (92.7M sh)
55
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% | -49.5% |
| 3 | Defiance ETFs, LLC | 7.0M | $66.3M | 0.9% | 3.1% | +56.5% |
| 4 | Penserra Capital Management LLC | 7.0M | $67,699 | 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 | MORGAN STANLEY | 3.3M | $31.9M | 0.0% | 1.5% | +41.9% |
| 8 | Marex Group Ltd | 2.3M | $22.3M | 0.1% | 1% | -48.7% |
| 9 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 2.3M | $22.1M | 0.0% | 1% | +3.1% |
| 10 | UBS Group AG | 2.0M | $19.8M | 0.0% | 0.9% | +55.4% |
| 11 | Bank of New York Mellon Corp | 2.0M | $19.2M | 0.0% | 0.9% | +93.2% |
| 12 | NORTHERN TRUST CORP | 1.8M | $17.6M | 0.0% | 0.8% | +7.5% |
| 13 | Sixth Street Partners Management Company, L.P.NEW | 1.6M | $15.9M | 2.7% | 0.7% | new |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.6M | $15.9M | 0.0% | 0.7% | +10.0% |
| 15 | NATIONAL BANK OF CANADA /FI/ | 1.5M | $14.1M | 0.0% | 0.6% | +948.0% |
| 16 | Clear Street Group Inc. | 1.4M | $13.9M | 0.0% | 0.6% | +69.6% |
| 17 | VAN ECK ASSOCIATES CORP | 1.3M | $12.8M | 0.0% | 0.6% | +35.6% |
| 18 | VANGUARD FIDUCIARY TRUST CO | 1.3M | $12.6M | 0.0% | 0.6% | -3.1% |
| 19 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.2M | $11.4M | 0.0% | 0.5% | +70.5% |
| 20 | BNP PARIBAS FINANCIAL MARKETS | 1.1M | $10.4M | 0.0% | 0.5% | +214.1% |
| 21 | RAYMOND JAMES FINANCIAL INC | 1.0M | $10.1M | 0.0% | 0.5% | +31.4% |
| 22 | Focus Financial Network, Inc. | 911,635 | $8.8M | 0.3% | 0.4% | +402.6% |
| 23 | GOLDMAN SACHS GROUP INC | 789,243 | $7.7M | 0.0% | 0.4% | -13.1% |
| 24 | Nuveen, LLC | 632,451 | $6.1M | 0.0% | 0.3% | +0.1% |
| 25 | D. E. Shaw & Co., Inc. | 582,618 | $5.7M | 0.0% | 0.3% | -18.9% |
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.