D-Wave Quantum Inc.
D-Wave Quantum Inc. (QBTS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · QBTS · as of Sep 30, 2025
Ownership Breakdown
512
Institutional Holders
▲ 125 vs Q2
$5.01B
Total Inst. Value
▲ $2.71B vs Q2
367.27M
Shares Outstanding
freeFloat 97.21%
182.68M
13F Shares Held
▲ 25.47M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
QBTS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC services-computer processing & data preparation | 38.45M | 13.06% | 13.06% | $950.22B | Nov 7, 2025 | ▲ 11.22M |
BLACKROCK, INC. services-computer processing & data preparation | 26.20M | 8.90% | 8.90% | $647.43B | Nov 12, 2025 | ▲ 2.98M |
D. E. SHAW & CO., INC. services-computer processing & data preparation | 13.65M | 4.64% | 4.64% | $337.25B | Nov 14, 2025 | ▲ 947.1K |
UBS GROUP AG services-computer processing & data preparation | 12.09M | 4.11% | 4.11% | $298.74B | Nov 13, 2025 | ▲ 10.21M |
GEODE CAPITAL MANAGEMENT, LLC services-computer processing & data preparation | 7.53M | 2.56% | 2.56% | $186.76B | Nov 12, 2025 | ▲ 1.12M |
STATE STREET CORP services-computer processing & data preparation | 7.32M | 2.49% | 2.49% | $180.91B | Nov 14, 2025 | ▲ 672.9K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-computer processing & data preparation | 6.91M | 2.35% | 2.35% | $170.87B | Nov 14, 2025 | ▲ 1.32M |
MORGAN STANLEY services-computer processing & data preparation | 6.34M | 2.15% | 2.15% | $156.68B | May 27, 2026 | ▲ 1.95M |
BANK OF AMERICA CORP /DE/ services-computer processing & data preparation | 5.41M | 1.84% | 1.84% | $133.59B | Feb 3, 2026 | ▼ 9.33M |
CITADEL ADVISORS LLC services-computer processing & data preparation | 4.70M | 1.60% | 1.60% | $116.13B | Nov 14, 2025 | ▲ 2.02M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
35
Increased
+52.64M shares4
New Positions
first time holders11
Decreased
−15.43M shares0
Sold Out
fully exitedNet shares change (top 50)
+37.21M
+52.64M / −15.43M
Net new holders
+28
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
QBTS insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
8
Buy transactions
14
Sell transactions
0.57
Buy/Sell ratio
$1M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Holt Sharon E director | Jun 4, 2026 | Award | 9,357 | — | — | 84.7K | Form 4 ↗ |
WEST STEVEN M director | Jun 4, 2026 | Award | 9,357 | — | — | 29.2K | Form 4 ↗ |
Nielsen Kirstjen director | Jun 4, 2026 | Award | 9,357 | — | — | 122.0K | Form 4 ↗ |
DiLullo John D director | Jun 4, 2026 | Award | 9,357 | — | — | 29.2K | Form 4 ↗ |
Ghai Rohit director | Jun 4, 2026 | Award | 9,357 | — | — | 37.1K | Form 4 ↗ |
Markovich John M. Chief Financial Officer | Jun 2, 2026 | Sale | 2,908 | $31.00 | $90.1K | 1.44M | Form 4 ↗ |
Markovich John M. Chief Financial Officer | May 22, 2026 | Sale | 328,752 | $27.70 | $9.11M | 1.44M | Form 4 ↗ |
Nguyen Diane EVP, Chief Legal Officer & GC | May 21, 2026 | Sale | 40,000 | $25.01 | $1.00M | 517.1K | Form 4 ↗ |
AMES SOPHIE C Exec. Vice President & CHRO | May 20, 2026 | Sale | 23,025 | $18.98 | $436.9K | 596.8K | Form 4 ↗ |
Nguyen Diane EVP, Chief Legal Officer & GC | May 13, 2026 | Tax Withhold | 2,459 | $22.35 | $55.0K | 557.1K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
D-Wave Quantum Inc. (QBTS) is primarily owned by institutional investors, who hold approximately 49.7% of total shares outstanding. Company insiders own approximately 2.79%, while retail and public investors account for the remaining 47.47%.
The largest institutional shareholder of D-Wave Quantum Inc. is VANGUARD GROUP INC, holding approximately 38.45 million shares — equal to 13.06% of outstanding shares — as of September 30, 2025.
A total of 512 institutional investors currently hold QBTS stock, with a combined institutional value of approximately $5.01 billion as of the most recent 13F filing period.
Frequently asked questions
QBTS ownershipD-Wave Quantum Inc. (QBTS) is primarily owned by institutional investors, who hold approximately 49.7% of shares. The largest shareholder is VANGUARD GROUP INC with a 13.06% stake. Company insiders hold 2.79%. Data sourced from SEC Form 13F as of September 30, 2025.