Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in QUBT held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 16.1M | $110.6M | -3.0% | 11.824% | 0.00% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 8.8M | $60.0M | — | 6.419% | 0.00% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 6.7M | $46.0M | — | 4.916% | 0.00% |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 6.2M | $42.5M | +0.4% | 4.540% | 0.00% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 4.7M | $32.2M | +3.0% | 3.443% | 0.00% |
| 6 | STATE STREET CORP | 4.5M | $30.9M | +4.0% | 3.309% | 0.00% |
| 7 | Defiance ETFs, LLC | 4.5M | $30.8M | +41.4% | 3.293% | 0.44% |
| 8 | Marex Group plc | 4.5M | $30.7M | -45.7% | 3.289% | 0.08% |
| 9 | CITADEL ADVISORS LLC | 4.2M | $28.8M | — | 3.080% | 0.01% |
| 10 | CAPITAL FUND MANAGEMENT S.A. | 3.5M | $23.7M | +4.7% | 2.530% | 0.13% |
| 11 | MORGAN STANLEY | 2.3M | $15.9M | +74.6% | 1.700% | 0.00% |
| 12 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 2.2M | $15.1M | +79.4% | 1.614% | 0.02% |
| 13 | NORTHERN TRUST CORP | 1.7M | $11.6M | +2.3% | 1.237% | 0.00% |
| 14 | Mubadala Investment Co PJSC | 1.6M | $10.9M | 0.0% | 1.163% | 0.05% |
| 15 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.5M | $10.2M | -8.0% | 1.093% | 0.00% |
| 16 | Squarepoint Ops LLC | 1.4M | $9.6M | +51.0% | 1.031% | 0.01% |
| 17 | VANGUARD FIDUCIARY TRUST CO | 1.3M | $9.2M | — | 0.984% | 0.00% |
| 18 | UBS Group AG | 1.3M | $9.0M | -1.2% | 0.964% | 0.00% |
| 19 | Bank of New York Mellon Corp | 1.0M | $7.0M | +72.1% | 0.749% | 0.00% |
| 20 | PACIFIC HEIGHTS ASSET MANAGEMENT LLC | 1.0M | $6.8M | +11.1% | 0.733% | 0.23% |
| 21 | Jump Financial, LLC | 939K | $6.4M | -31.0% | 0.688% | 0.09% |
| 22 | GOLDMAN SACHS GROUP INC | 908K | $6.2M | +16.3% | 0.665% | 0.00% |
| 23 | Clear Street Group Inc. | 842K | $5.8M | -26.8% | 0.617% | 0.02% |
| 24 | RAYMOND JAMES FINANCIAL INC | 799K | $5.5M | +98.2% | 0.585% | 0.00% |
| 25 | Walleye Trading LLC | 800K | $5.5M | +48.9% | 0.586% | 0.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in QUBT — a direct measure of their conviction.
Filings activity in QUBT during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 287 | +2.9% | 49.69% | 23.66 pp | $674M | 32% |
| Q4 2025 | 279 | +13% | 73.35% | 56.84 pp | $994M | 44% |
| Q3 2025 | 247 | +11% | 130.19% | +37.21 pp | $1.76B | +40% |
| Q2 2025 | 222 | +36% | 92.98% | +77.03 pp | $1.26B | +483% |
| Q1 2025 | 163 | +33% | 15.95% | 19.38 pp | $216M | 55% |
| Q4 2024 | 123 | +262% | 35.33% | +35.15 pp | $479M | +19036% |
| Q3 2024 | 34 | 29% | 0.18% | 0.41 pp | $3M | 69% |
| Q2 2024 | 48 | — | 0.59% | — | $8M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying QUBT stock.
Based on Q1 2026 13F filings, institutional ownership of Quantum Computing, Inc. stands at 49.7%, held across 287 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of QUBT, with approximately 16,139,212 shares worth $0.11B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of QUBT, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, CITADEL ADVISORS LLC.
Our composite Smart Money Score for QUBT is 46 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
61 institutions opened new positions in QUBT during Q1 2026, while 53 fully exited. 40 added to existing positions and 186 trimmed.
QUBT institutional ownership fell by 23.66 percentage points quarter-over-quarter, with a net change of +8 holders.
The top 10 institutions account for 64.7% of all reported 13F value in QUBT, and the top 25 account for 84.8%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Quantum Computing, Inc. (QUBT) Institutional Ownership