Quantinuum Inc. (QNT) Institutional Shareholders
Quantinuum Inc. (QNT) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $2.70B in QNT holdings during the latest filing period.
Capital World Investors is currently the largest disclosed institutional shareholder of QNT tracked by InsiderSet, reporting ownership valued at approximately $372.65M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $235.15M, representing an estimated loss of -36.90% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 52% of the total disclosed QNT value among the investors covered in this analysis. Major shareholders include Capital World Investors, Citadel Advisors Llc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in Quantinuum Inc. (QNT).
This page ranks the largest institutional QNT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
169
Total Reported Value
$2.70B
Largest Holder
Capital World Investors
Largest Position
$372.65M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
170
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Capital World Investors | 0.04% | 4,558,976 | $372,650,698 | $235,151,982 | -$137,498,716 | -36.90% | |
| Citadel Advisors Llc | 0.11% | 2,299,997 | $188,001,755 | $118,633,845 | -$69,367,910 | -36.90% | |
| Blackrock, Inc. | 0.00% | 2,259,347 | $184,679,022 | $116,537,118 | -$68,141,904 | -36.90% | |
| Capital Research Global Investors | 0.02% | 1,754,325 | $143,398,526 | $90,488,084 | -$52,910,443 | -36.90% | |
| Penserra Capital Management Llc | 0.75% | 1,200,176 | $98,102,000 | $61,905,078 | -$36,196,922 | -36.90% | |
| Defiance Etfs, Llc | 1.33% | 1,215,283 | $95,290,340 | $62,684,297 | -$32,606,043 | -34.22% | |
| Wellington Management Group Llp | 0.02% | 1,130,639 | $92,418,432 | $58,318,360 | -$34,100,072 | -36.90% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,028,382 | $84,059,945 | $53,043,944 | -$31,016,001 | -36.90% | |
| Capital International Investors | 0.02% | 961,428 | $78,587,125 | $49,590,456 | -$28,996,669 | -36.90% | |
| Vanguard Capital Management Llc | 0.00% | 949,283 | $77,594,392 | $48,964,017 | -$28,630,375 | -36.90% | |
| Balyasny Asset Management L.P. | 0.12% | 821,918 | $67,183,577 | $42,394,530 | -$24,789,047 | -36.90% | |
| Alliancebernstein L.P. | 0.02% | 789,326 | $64,519,507 | $40,713,435 | -$23,806,072 | -36.90% | |
| Voya Investment Management Llc | 0.05% | 691,437 | $56,518,060 | $35,664,320 | -$20,853,740 | -36.90% | |
| Fil Ltd | 0.04% | 666,766 | $54,501,452 | $34,391,790 | -$20,109,662 | -36.90% | |
| Fmr Llc | 0.00% | 642,800 | $52,542,472 | $33,155,624 | -$19,386,848 | -36.90% | |
| Norges Bank | 0.00% | 564,000 | $46,101,360 | $29,091,120 | -$17,010,240 | -36.90% | |
| Shannon River Fund Management Llc | 3.42% | 469,355 | $38,365,078 | $24,209,331 | -$14,155,747 | -36.90% | |
| Massachusetts Financial Services Co | 0.01% | 463,913 | $37,920,249 | $23,928,633 | -$13,991,616 | -36.90% | |
| Mubadala Investment Co Pjsc | 0.11% | 449,500 | $36,742,130 | $23,185,210 | -$13,556,920 | -36.90% | |
| Principal Financial Group Inc | 0.02% | 440,079 | $35,972,056 | $22,699,275 | -$13,272,781 | -36.90% | |
| Federated Hermes, Inc. | 0.05% | 393,800 | $32,189,212 | $20,312,204 | -$11,877,008 | -36.90% | |
| Marshall Wace, Llp | 0.03% | 392,637 | $32,094,149 | $20,252,216 | -$11,841,933 | -36.90% | |
| Bank Of New York Mellon Corp | 0.01% | 377,133 | $30,826,825 | $19,452,520 | -$11,374,305 | -36.90% | |
| Jennison Associates Llc | 0.02% | 358,462 | $29,300,693 | $18,489,470 | -$10,811,223 | -36.90% | |
| Bnp Paribas Asset Management Holding S.A. | 0.03% | 335,770 | $27,445,840 | $17,319,017 | -$10,126,823 | -36.90% | |
| Jain Global Llc | 0.32% | 334,481 | $27,340,477 | $17,252,530 | -$10,087,947 | -36.90% | |
| Viking Global Investors | Ole Andreas Halvorsen | 0.07% | 306,123 | $25,022,494 | $15,789,824 | -$9,232,670 | -36.90% |
| D1 Capital Partners L.P. | 0.07% | 300,000 | $24,522,000 | $15,474,000 | -$9,048,000 | -36.90% | |
| Davidson Kempner Capital Management Lp | 0.39% | 297,800 | $24,342,172 | $15,360,524 | -$8,981,648 | -36.90% | |
| Soros Fund Management Llc | 0.29% | 266,000 | $21,742,840 | $13,720,280 | -$8,022,560 | -36.90% | |
| Granahan Investment Management, Llc | 0.68% | 233,540 | $19,089,560 | $12,045,993 | -$7,043,567 | -36.90% | |
| Burkehill Global Management, Lp | 0.68% | 230,000 | $18,800,200 | $11,863,400 | -$6,936,800 | -36.90% | |
| Schonfeld Strategic Advisors Llc | 0.09% | 216,304 | $17,680,687 | $11,156,960 | -$6,523,727 | -36.90% | |
| Ghisallo Capital Management Llc | 0.32% | 200,000 | $16,348,000 | $10,316,000 | -$6,032,000 | -36.90% | |
| Seven Grand Managers, Llc | 0.66% | 200,000 | $16,348,000 | $10,316,000 | -$6,032,000 | -36.90% | |
| Brown Advisory Inc | 0.02% | 187,525 | $15,328,294 | $9,672,540 | -$5,655,755 | -36.90% | |
| Lmr Partners Llp | 0.11% | 182,272 | $14,898,913 | $9,401,590 | -$5,497,323 | -36.90% | |
| Blackstone Inc. | 0.05% | 180,000 | $14,713,200 | $9,284,400 | -$5,428,800 | -36.90% | |
| Hbk Investments L P | 0.17% | 179,462 | $14,669,224 | $9,256,650 | -$5,412,574 | -36.90% | |
| Hudson Bay Capital Management Lp | 0.07% | 178,420 | $14,584,051 | $9,202,904 | -$5,381,147 | -36.90% | |
| Tudor Investment Corp Et Al | 0.06% | 176,693 | $14,442,886 | $9,113,825 | -$5,329,061 | -36.90% | |
| Bluecrest Capital Management Ltd | 0.61% | 175,000 | $14,304,500 | $9,026,500 | -$5,278,000 | -36.90% | |
| Morgan Stanley | 0.00% | 158,259 | $12,936,091 | $8,162,999 | -$4,773,092 | -36.90% | |
| D. E. Shaw & Co., Inc. | 0.01% | 155,000 | $12,669,700 | $7,994,900 | -$4,674,800 | -36.90% | |
| Elliott Investment Management L.P. | 0.09% | 150,000 | $12,261,000 | $7,737,000 | -$4,524,000 | -36.90% | |
| Maplelane Capital, Llc | 0.51% | 150,000 | $12,261,000 | $7,737,000 | -$4,524,000 | -36.90% | |
| Exoduspoint Capital Management, Lp | 0.11% | 144,022 | $11,772,358 | $7,428,655 | -$4,343,703 | -36.90% | |
| Woodline Partners Lp | 0.04% | 140,234 | $11,462,727 | $7,233,270 | -$4,229,457 | -36.90% | |
| Capital Advisors Inc/Ok | 0.17% | 140,103 | $11,452,019 | $7,226,513 | -$4,225,506 | -36.90% | |
| Weiss Asset Management Lp | 0.13% | 140,000 | $11,443,600 | $7,221,200 | -$4,222,400 | -36.90% |
Frequently asked questions about QNT
Who owns the most QNT stock?
The largest holders of QNT are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for Quantinuum Inc. (QNT).
Is QNT widely held by superinvestors?
Many widely followed stocks like QNT appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly QNT is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.