Key facts
- QUBT - Quantum Computing Inc. has 14 insiders with reported activity on this page.
- Net insider value flow over the last year: -$25,827,921.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 14 Insiders of Quantum Computing Inc.
- Symbol
- QUBT on Nasdaq
- Location
- Hoboken, NJ
Change
- Buy value: ; sell value: $25,827,920.
- Net share flow: -1,755,642.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$25,827,921.
Buys
$0
Shares: 0
Insiders: 0
Sells
$25,827,921
Shares: 1,755,642
Insiders: 8
Net
-$25,827,921
Shares: -1,755,642
Insiders: -8
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 78,262 | $0 | $614,499 | -$614,499 |
| 3-6 | 0 | 2,860 | $0 | $33,891 | -$33,891 |
| 6-9 | 0 | 1,154,649 | $0 | $16,810,467 | -$16,810,467 |
| 9-12 | 0 | 519,871 | $0 | $8,369,064 | -$8,369,064 |
Quantum Computing Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Yuping Huang | CEO, President, Director, 10%+ Owner | $336,292,259 | -$14,415,000 | -4.1% | Mixed | 12 Sep 2025 |
| William J. McGann | Ceo | $10,595,451 | Mixed | 02 Apr 2025 | ||
| Christopher Bruce Roberts | CFO and General Counsel | $8,818,094 | -$614,499 | -6.5% | Filing P/S | 10 Mar 2026 |
| Christopher Boehmler | Chief Financial Officer | $2,795,169 | -$5,519,082 | -66% | Mixed | 12 Jun 2025 |
| Robert Liscouski | Director | $1,087,961 | Mixed | 18 Apr 2024 | ||
| Milan Begliarbekov | Chief Operating Officer | $291,384 | -$33,891 | -10% | Mixed | 31 Dec 2025 |
| Robert B. Fagenson | Director | $151,542 | -$1,556,005 | -91% | Median | 13 Apr 2026 |
| Javad Shabani | Director | $151,542 | -$572,653 | -79% | Median | 13 Apr 2026 |
| Eric Mark Schwartz | Director | $151,542 | Median | 13 Apr 2026 | ||
| Carl Scott Weimer | Director | $151,542 | Median | 13 Apr 2026 | ||
| Michael C. Turmelle | Director | $151,542 | -$2,849,981 | -95% | Median | 13 Apr 2026 |
| Pouya Dianat | Chief Revenue Officer | $0 | -$266,808 | -100% | Mixed | 18 Aug 2025 |
| David Charles Morris | Chief Revenue Officer, Director | Mixed | 17 Oct 2022 | |||
| Bertrand Velge | Director | Mixed | 26 Jan 2023 |
Top shareholders of Quantum Computing Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Yuping Huang |
3/4/5
|
CEO, President, Director, 10%+ Owner |
—
mixed-class rows
|
21,302,068
mixed-class rows
|
$336,292,259 | -$14,415,000 | 12 Sep 2025 | |
| BlackRock, Inc. |
13D/G
13F
|
Company |
6.7%
|
15,045,407
|
$154,365,876 | +$50,780,844 | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13D/G
13F
|
Kenneth Griffin · Company |
4.9%
|
9,244,939
|
$146,902,081 | $0 | 25 Sep 2025 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
3.9%
|
8,762,295
|
$60,021,721 | — | 31 Mar 2026 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
|
Company |
3%
|
6,710,124
|
$45,964,349 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.1%
|
4,700,305
|
$32,203,039 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
2%
|
4,516,820
|
$30,940,217 | — | 31 Mar 2026 | |
| Defiance ETFs, LLC |
13F
|
Company |
2%
|
4,495,083
|
$30,791,319 | — | 31 Mar 2026 | |
| Marex Group plc |
13F
|
Company |
2%
|
4,488,912
|
$30,749,047 | — | 31 Mar 2026 | |
| Penserra Capital Management LLC |
13F
|
Company |
1.5%
|
3,349,847
|
$22,946,000 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
1%
|
2,320,726
|
$15,896,973 | — | 31 Mar 2026 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.98%
|
2,203,301
|
$15,073,061 | — | 31 Mar 2026 | |
| CAPITAL FUND MANAGEMENT S.A. |
13F
|
Company |
0.76%
|
1,700,895
|
$11,651,130 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.75%
|
1,689,081
|
$11,570,205 | — | 31 Mar 2026 | |
| Mubadala Investment Co PJSC |
13F
|
Company |
0.71%
|
1,587,350
|
$10,873,348 | — | 31 Mar 2026 | |
| William J. McGann |
3/4/5
|
CEO |
—
class O/S missing
|
1,249,169
|
$10,595,451 | — | 02 Apr 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.67%
|
1,492,210
|
$10,221,639 | — | 31 Mar 2026 | |
| Squarepoint Ops LLC |
13F
|
Company |
0.6%
|
1,351,733
|
$9,259,371 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.6%
|
1,343,626
|
$9,203,838 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.59%
|
1,315,692
|
$9,012,490 | — | 31 Mar 2026 | |
| Christopher Bruce Roberts |
3/4/5
|
CFO and General Counsel |
—
mixed-class rows
|
2,123,038
mixed-class rows
|
$8,818,094 | -$614,499 | 10 Mar 2026 | |
| HRT FINANCIAL LP |
13F
|
Company |
0.57%
|
1,275,863
|
$8,739,000 | — | 31 Mar 2026 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.46%
|
1,022,604
|
$7,004,836 | — | 31 Mar 2026 | |
| PACIFIC HEIGHTS ASSET MANAGEMENT LLC |
13F
|
Company |
0.45%
|
1,000,000
|
$6,850,000 | — | 31 Mar 2026 | |
| VAN ECK ASSOCIATES CORP |
13F
|
Company |
0.43%
|
971,602
|
$6,655,000 | — | 31 Mar 2026 | |
| Jump Financial, LLC |
13F
|
Company |
0.42%
|
939,433
|
$6,435,116 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.4%
|
907,974
|
$6,219,621 | — | 31 Mar 2026 | |
| Clear Street Group Inc. |
13F
|
Company |
0.38%
|
842,219
|
$5,769,200 | — | 31 Mar 2026 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.35%
|
789,583
|
$5,408,644 | — | 31 Mar 2026 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
0.32%
|
718,210
|
$4,919,739 | — | 31 Mar 2026 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.31%
|
687,823
|
$4,711,588 | — | 31 Mar 2026 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.3%
|
667,674
|
$4,573,567 | — | 31 Mar 2026 | |
| Engineers Gate Manager LP |
13F
|
Company |
0.29%
|
658,589
|
$4,511,335 | — | 31 Mar 2026 | |
| Nuveen, LLC |
13F
|
Company |
0.28%
|
631,678
|
$4,326,995 | — | 31 Mar 2026 | |
| Blackstone Inc. |
13F
|
Company |
0.22%
|
500,000
|
$3,425,000 | — | 31 Mar 2026 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.2%
|
439,775
|
$3,012,459 | — | 31 Mar 2026 | |
| Quantbot Technologies LP |
13F
|
Company |
0.18%
|
411,048
|
$2,815,679 | — | 31 Mar 2026 | |
| Christopher Boehmler |
3/4/5
|
Chief Financial Officer |
—
mixed-class rows
|
919,202
mixed-class rows
|
$2,795,169 | -$5,519,082 | 12 Jun 2025 | |
| Swiss National Bank |
13F
|
Company |
0.18%
|
397,700
|
$2,724,245 | — | 31 Mar 2026 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.17%
|
384,252
|
$2,632,126 | — | 31 Mar 2026 | |
| UNICOM Systems, Inc. |
13F
|
Company |
0.16%
|
362,279
|
$2,481,611 | — | 31 Mar 2026 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.15%
|
340,925
|
$2,335,336 | — | 31 Mar 2026 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.09%
|
210,478
|
$2,159,504 | — | 31 Mar 2026 | |
| ALGERT GLOBAL LLC |
13F
|
Company |
0.14%
|
313,631
|
$2,148,000 | — | 31 Mar 2026 | |
| LPL Financial LLC |
13F
|
Company |
0.13%
|
282,863
|
$1,937,612 | — | 31 Mar 2026 | |
| Headlands Technologies LLC |
13F
|
Company |
0.12%
|
277,198
|
$1,898,806 | — | 31 Mar 2026 | |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM |
13F
|
Company |
0.11%
|
252,002
|
$1,726,214 | — | 31 Mar 2026 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.11%
|
250,461
|
$1,715,658 | — | 31 Mar 2026 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.1%
|
234,995
|
$1,609,704 | — | 31 Mar 2026 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.1%
|
227,409
|
$1,558,000 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for Quantum Computing Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Carl Scott Weimer | QUBT | Common Stock | Award | 22,123 | 22,123 | 13 Apr 2026 | Direct | |||
| Michael C. Turmelle | QUBT | Common Stock | Award | 22,123 | 22,123 | 13 Apr 2026 | Direct | |||
| Javad Shabani | QUBT | Common Stock | Award | 22,123 | 22,123 | 13 Apr 2026 | Direct | |||
| Eric Mark Schwartz | QUBT | Common Stock | Award | 22,123 | 22,123 | 13 Apr 2026 | Direct | |||
| Robert B. Fagenson | QUBT | Common Stock | Award | 22,123 | 22,123 | 13 Apr 2026 | Direct | |||
| Christopher Bruce Roberts | QUBT | Common Stock | Sale | -0.83% | $73,495 | $7.85 | -9,360 | 1,123,038 | 11 Mar 2026 | Direct |
| Christopher Bruce Roberts | QUBT | Common Stock | Sale | -5.74% | $541,005 | $7.85 | -68,902 | 1,132,398 | 10 Mar 2026 | Direct |
| Christopher Bruce Roberts | QUBT | Common Stock | Options Exercise | 49.9% | 400,000 | 1,201,300 | 10 Mar 2026 | Direct | ||
| Christopher Bruce Roberts | QUBT | Employee Stock Option (right to buy) | Options Exercise | -57.1% | -400,000 | 300,000 | 10 Mar 2026 | Direct | ||
| Milan Begliarbekov | QUBT | Common Stock | Sale | -10.6% | $33,891 | $11.85 | -2,860 | 24,240 | 07 Jan 2026 | Direct |
| Milan Begliarbekov | QUBT | Common Stock | Award | 100% | 13,550 | 27,100 | 31 Dec 2025 | Direct | ||
| Robert B. Fagenson | QUBT | Common Stock | Sale | -100% | $84,410 | $16.88 | -5,000 | 0 | 15 Sep 2025 | See foonote |
| Yuping Huang | QUBT | Common Stock | Gift | -1.88% | -400,000 | 20,887,718 | 12 Sep 2025 | Direct | ||
| Robert B. Fagenson | QUBT | Common Stock | Sale | -75% | $234,362 | $15.62 | -15,000 | 5,000 | 12 Sep 2025 | See foonote |
| Robert B. Fagenson | QUBT | Common Stock | Sale | -60% | $468,882 | $15.63 | -30,000 | 20,000 | 11 Sep 2025 | See foonote |
| Robert B. Fagenson | QUBT | Common Stock | Sale | -41.2% | $543,053 | $15.52 | -35,000 | 50,000 | 10 Sep 2025 | See foonote |
| Robert B. Fagenson | QUBT | Common Stock | Sale | -15% | $225,298 | $15.02 | -15,000 | 85,000 | 09 Sep 2025 | See foonote |
| Javad Shabani | QUBT | Common Stock | Sale | -100% | $266,653 | $15.26 | -17,474 | 0 | 08 Sep 2025 | Direct |
| Javad Shabani | QUBT | Common Stock | Sale | -53.4% | $306,000 | $15.30 | -20,000 | 17,474 | 05 Sep 2025 | Direct |
| Yuping Huang | QUBT | Common Stock | Sale | -4.49% | $14,415,000 | $14.42 | -1,000,000 | 21,287,718 | 04 Sep 2025 | Direct |
| Pouya Dianat | QUBT | Common Stock | Sale | -100% | $266,808 | $15.53 | -17,175 | 0 | 25 Aug 2025 | Direct |
| Javad Shabani | QUBT | Common Stock | Options Exercise | 37,474 | 37,474 | 18 Aug 2025 | Direct | |||
| Javad Shabani | QUBT | Options to Purchase Shares of Common Stock | Disposed to Issuer | -79.6% | -40,000 | 10,219 | 18 Aug 2025 | Direct | ||
| Pouya Dianat | QUBT | Common Stock | Options Exercise | 17,175 | 17,175 | 18 Aug 2025 | Direct | |||
| Pouya Dianat | QUBT | Options to Purchase Shares of Common Stock | Disposed to Issuer | -33.3% | -18,333 | 36,667 | 18 Aug 2025 | Direct | ||
| Christopher Bruce Roberts | QUBT | Options to Purchase Shares of Common Stock | Award | 75% | 300,000 | 700,000 | 11 Jul 2025 | Direct | ||
| Yuping Huang | QUBT | Common Stock | Options Exercise | 4.95% | 1,050,812 | 22,287,718 | 30 Jun 2025 | Direct | ||
| Christopher Boehmler | QUBT | Common Stock | Options Exercise | 351,152 | 351,152 | 13 Jun 2025 | Direct | |||
| Christopher Boehmler | QUBT | Options to Purchase Shares of Common Stock | Disposed to Issuer | -100% | -403,236 | 0 | 13 Jun 2025 | Direct | ||
| Christopher Boehmler | QUBT | Common Stock | Sale | -100% | $928,800 | $20.00 | -46,440 | 0 | 12 Jun 2025 | Direct |
| Christopher Boehmler | QUBT | Common Stock | Sale | -63.7% | $1,663,220 | $19.92 | -83,495 | 47,565 | 11 Jun 2025 | Direct |
| Christopher Boehmler | QUBT | Common Stock | Sale | -42.4% | $1,542,997 | $15.96 | -96,679 | 131,060 | 10 Jun 2025 | Direct |
| Christopher Boehmler | QUBT | Common Stock | Sale | -28.8% | $1,384,065 | $15.00 | -92,271 | 227,739 | 09 Jun 2025 | Direct |
| Michael C. Turmelle | QUBT | Common Stock | Sale | -100% | $2,849,981 | $14.18 | -200,986 | 0 | 09 Jun 2025 | Direct |
| Michael C. Turmelle | QUBT | Common Stock | Options Exercise | 200,986 | 120,740 | 03 Jun 2025 | Direct | |||
| Michael C. Turmelle | QUBT | Options to Purchase Shares of Common Stock | Disposed to Issuer | -100% | -200,986 | 0 | 03 Jun 2025 | Direct | ||
| Pouya Dianat | QUBT | Common Stock | Options Exercise | -100% | -1,810 | 0 | 28 May 2025 | Direct | ||
| Pouya Dianat | QUBT | Options to Purchase Shares of Common Stock | Disposed to Issuer | -100% | -5,600 | 0 | 28 May 2025 | Direct | ||
| Pouya Dianat | QUBT | Common Stock | Options Exercise | 1,810 | 1,810 | 22 May 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.