Quantinuum Ownership
$54.50
4.79%
Nasdaq, Sep 17, 04:17 pm EDT.
Closed.
Why the stock moved Beta
Sector
Industry
Quantinuum Top Shareholders
| # | Holder | Shares | % of Shares Out | Change | Filing Date |
|---|---|---|---|---|---|
| 1 |
Capital World Investors
|
4.559m | 13.87% | +4.559m | Jun 30 2026 |
| 2 |
Citadel Advisors LLC
|
2.300m | 7.00% | +2.300m | Jun 30 2026 |
| 3 |
Capital Research Global Investors
|
1.754m | 5.34% | +1.754m | Jun 30 2026 |
| 4 |
Defiance ETFs, LLC
|
1.215m | 3.70% | +1.215m | Jun 30 2026 |
| 5 |
Penserra Capital Management LLC
|
1.200m | 3.65% | +1.200m | Jun 30 2026 |
|
1
Capital World Investors
|
13.87%
4.559m
|
|
2
Citadel Advisors LLC
|
7.00%
2.300m
|
|
3
Capital Research Global Investors
|
5.34%
1.754m
|
|
4
Defiance ETFs, LLC
|
3.70%
1.215m
|
|
5
Penserra Capital Management LLC
|
3.65%
1.200m
|
| The largest shareholders show who really holds influence: big institutional owners shape a stock's liquidity, and building or cutting positions can move the price. | |
| The 5 largest shareholders together hold 33.56% of Quantinuum, with Capital World Investors the biggest at 13.87%, followed by Citadel Advisors LLC (7.00%) and Capital Research Global Investors (5.34%). |
Recent Quantinuum Insider Transactions
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| Date | Insider & Role | Type | Price | Quantity | Volume |
|---|---|---|---|---|---|
| Sep 18 2026 |
John Mitchell
CEO
|
Purchases
|
$182.45 | + 15,000 | $2,736,750 |
| Sep 15 2026 |
Sarah Chen
CFO
|
Sales
|
$179.80 | - 8,500 | $1,528,300 |
| Sep 11 2026 |
Robert Williams
COO
|
Purchases
|
$175.20 | + 12,000 | $2,102,400 |
| Sep 06 2026 |
Emily Rodriguez
Director
|
Sales
|
$181.30 | - 5,200 | $942,760 |
| Aug 31 2026 |
Michael Thompson
SVP Operations
|
Purchases
|
$170.50 | + 20,000 | $3,410,000 |
| Aug 24 2026 |
Lisa Park
General Counsel
|
Sales
|
$177.90 | - 6,800 | $1,209,720 |
| No transactions found for this filter. | |||||
|
John Mitchell
PURCHASES
|
Sep 18 2026
$182.45
|
|
Sarah Chen
SALES
|
Sep 15 2026
$179.80
|
|
Robert Williams
PURCHASES
|
Sep 11 2026
$175.20
|
|
Emily Rodriguez
SALES
|
Sep 06 2026
$181.30
|
|
Michael Thompson
PURCHASES
|
Aug 31 2026
$170.50
|
|
Lisa Park
SALES
|
Aug 24 2026
$177.90
|
| No transactions found for this filter. | |
| Insider transactions show you what executives, directors and major shareholders do with their own stock: people who know the company from the inside. Buys are the most telling signal, because insiders invest their own money. Sells are harder to read, since they can also be driven by taxes, diversification or expiring option programs. |
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