Quantum Computing Inc.
QUBT- Exchange
- Nasdaq
- Industry
- Services-Prepackaged Software
- SEC CIK
- 0001758009
No open-market purchases or sales by Quantum Computing Inc. insiders were filed in the last 90 days; 313 institutions reported holding it in 13F filings for Q2 2026, worth $995.6M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +22 vs. previous quarter
- 313
- 13F valueReported value at the end of Q2 2026
- $995.6M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding QUBT, Q2 2026
No superinvestor reported holding QUBT at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Quantum Computing Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 11, 2026 (view filing) | Mar 10-11 | 1 day | Roberts Christopher BruceCFO and General Counsel | SSale | −78.3K | $7.85 | −$614.4K | −6.5%1.12M after | 2 lots |
| Jan 12, 2026 (view filing) | Jan 7 | 5 daysLate | Begliarbekov MilanChief Operating Officer | SSale | −2.86K | $11.85 | −$33.9K | −10.6%24.2K after | |
| Sep 17, 2025 (view filing) | Sep 9-15 | 8 daysLate | Fagenson Robert BDirector | SSale | −100.0K | $15.56 | −$1.56M | −100.0%0 after | 5 lots |
| Sep 8, 2025 (view filing) | Sep 5-8 | 3 days | Shabani JavadDirector | SSale | −37.5K | $15.28 | −$572.7K | −100.0%0 after | 2 lots |
| Sep 5, 2025 (view filing) | Sep 4 | 1 day | Huang YupingCEO, President | SSale | −1.00M | $14.42 | −$14.4M | −4.5%21.3M after | |
| Sep 4, 2025 (view filing) | Aug 25 | 10 daysLate | Dianat PouyaChief Revenue Officer | SSale | −17.2K | $15.53 | −$266.7K | −100.0%0 after | |
| Jun 16, 2025 (view filing)9:58 PM ET | Jun 12 | 4 days | Boehmler ChristopherChief Financial Officer | SSale | −46.4K | $20.00 | −$928.8K | −100.0%0 after | |
| Jun 11, 2025 (view filing) | Jun 9-11 | 2 days | Boehmler ChristopherChief Financial Officer | SSale | −272.4K | $16.85 | −$4.59M | −85.1%47.6K after | 3 lots |
| Jun 11, 2025 (view filing) | Jun 9 | 2 days | Turmelle Michael CDirector | SSale | −201.0K | $14.18 | −$2.85M | −100.0%0 after | |
| May 20, 2025 (view filing) | May 19 | 1 day | Huang YupingChief Quantum Officer | SSale | −500.0K | $11.70 | −$5.85M | −2.3%21.2M after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Quantum Computing Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 17,733,975 | $172.0M | 0.00% | +1,594,763+9.9% | Added |
| Vanguard Capital Management LLC | 8,848,881 | $85.8M | 0.00% | +86,586+1.0% | Added |
| Penserra Capital Management LLC | 6,979,349 | $67.7M | 0.52% | +3,629,502+108.3% | Added |
| Defiance ETFs, LLC | 7,033,410 | $66.3M | 0.92% | +2,538,327+56.5% | Added |
| Vanguard Portfolio Management LLC | 6,566,582 | $63.7M | 0.00% | −143,542−2.1% | Reduced |
| Geode Capital Management, LLC | 5,322,648 | $51.6M | 0.00% | +622,343+13.2% | Added |
| State Street Corp | 4,921,317 | $47.7M | 0.00% | +404,497+9.0% | Added |
| Morgan Stanley | 3,292,011 | $31.9M | 0.00% | +971,285+41.9% | Added |
| Marex Group plc | 2,302,359 | $22.3M | 0.17% | −2,186,553−48.7% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 2,272,533 | $22.1M | 0.03% | +69,232+3.1% | Added |