IONQ INC (IONQ) Institutional Shareholders
IONQ INC (IONQ) 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 $10.30B in IONQ holdings during the latest filing period.
Morgan Stanley is currently the largest disclosed institutional shareholder of IONQ tracked by InsiderSet, reporting ownership valued at approximately $1.40B 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 $1.03B, representing an estimated loss of -26.53% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 59% of the total disclosed IONQ value among the investors covered in this analysis. Major shareholders include Morgan Stanley, Blackrock, Inc., Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in IONQ INC (IONQ).
This page ranks the largest institutional IONQ 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
756
Total Reported Value
$10.30B
Largest Holder
Morgan Stanley
Largest Position
$1.40B
Insider Transactions (90d)
6
Latest Filing Quarter
Q2 2026
New Institutional Positions
127
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Morgan Stanley | 0.07% | 26,279,397 | $1,399,640,807 | $1,028,312,805 | -$371,328,002 | -26.53% | |
| Blackrock, Inc. | 0.02% | 20,896,455 | $1,112,945,167 | $817,678,284 | -$295,266,883 | -26.53% | |
| Vanguard Capital Management Llc | 0.02% | 15,598,546 | $830,778,560 | $610,371,105 | -$220,407,455 | -26.53% | |
| Vanguard Portfolio Management Llc | 0.03% | 13,959,259 | $743,470,134 | $546,225,805 | -$197,244,329 | -26.53% | |
| State Street Corp | 0.01% | 8,123,629 | $432,664,481 | $317,877,603 | -$114,786,878 | -26.53% | |
| Ubs Group Ag | 0.07% | 7,896,730 | $420,579,840 | $308,999,045 | -$111,580,795 | -26.53% | |
| Bank Of America Corp | 0.02% | 6,473,088 | $344,756,653 | $253,291,933 | -$91,464,720 | -26.53% | |
| Geode Capital Management, Llc | 0.02% | 6,459,949 | $343,108,312 | $252,777,804 | -$90,330,508 | -26.33% | |
| Norges Bank | 0.03% | 5,188,962 | $276,364,116 | $203,044,083 | -$73,320,033 | -26.53% | |
| Marex Group Plc | 1.68% | 3,707,611 | $197,467,362 | $145,078,818 | -$52,388,544 | -26.53% | |
| D. E. Shaw & Co., Inc. | 0.09% | 2,690,977 | $143,321,435 | $105,297,930 | -$38,023,505 | -26.53% | |
| Charles Schwab Investment Management Inc | 0.02% | 2,369,500 | $126,199,570 | $92,718,535 | -$33,481,035 | -26.53% | |
| Vanguard Fiduciary Trust Co | 0.03% | 2,333,007 | $124,255,953 | $91,290,564 | -$32,965,389 | -26.53% | |
| Marshall Wace, Llp | 0.10% | 2,327,425 | $123,958,654 | $91,072,140 | -$32,886,514 | -26.53% | |
| Hrt Financial Lp | 0.22% | 2,232,494 | $118,902,000 | $87,357,490 | -$31,544,510 | -26.53% | |
| Northern Trust Corp | 0.01% | 2,209,642 | $117,685,533 | $86,463,291 | -$31,222,242 | -26.53% | |
| Bank Of New York Mellon Corp | 0.02% | 2,137,879 | $113,863,439 | $83,655,205 | -$30,208,234 | -26.53% | |
| Jane Street Group, Llc | 0.07% | 2,056,763 | $109,543,197 | $80,481,136 | -$29,062,061 | -26.53% | |
| Millennium Management Llc | 0.07% | 1,959,358 | $104,355,407 | $76,669,679 | -$27,685,728 | -26.53% | |
| Goldman Sachs Group Inc | 0.01% | 1,789,611 | $95,314,682 | $70,027,478 | -$25,287,204 | -26.53% | |
| Price T Rowe Associates Inc | 0.01% | 1,565,044 | $83,355,000 | $61,240,172 | -$22,114,828 | -26.53% | |
| Legal & General Group Plc | 0.02% | 1,541,983 | $82,126,014 | $60,337,795 | -$21,788,219 | -26.53% | |
| Clear Street Group Inc. | 0.21% | 1,245,695 | $66,345,716 | $48,744,045 | -$17,601,671 | -26.53% | |
| Van Eck Associates Corp | 0.04% | 1,203,346 | $64,090,208 | $47,086,929 | -$17,003,279 | -26.53% | |
| National Bank Of Canada | 0.06% | 1,187,896 | $63,269,002 | $46,482,370 | -$16,786,632 | -26.53% | |
| Penserra Capital Management Llc | 0.48% | 1,176,620 | $62,666,000 | $46,041,141 | -$16,624,859 | -26.53% | |
| Defiance Etfs, Llc | 0.86% | 1,197,663 | $61,559,878 | $46,864,553 | -$14,695,325 | -23.87% | |
| Voya Investment Management Llc | 0.05% | 1,088,548 | $57,976,067 | $42,594,883 | -$15,381,184 | -26.53% | |
| Cantor Fitzgerald, L. P. | 1.10% | 1,068,808 | $56,924,714 | $41,822,457 | -$15,102,257 | -26.53% | |
| Squarepoint Ops Llc | 0.11% | 1,067,412 | $56,850,363 | $41,767,832 | -$15,082,531 | -26.53% | |
| Susquehanna International Group, Llp | 0.05% | 1,052,066 | $56,033,035 | $41,167,343 | -$14,865,692 | -26.53% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,037,255 | $55,253,267 | $40,587,788 | -$14,665,479 | -26.54% | |
| Peakshares Llc | 0.04% | 1,000 | $53,260,000 | $39,130 | -$53,220,870 | -99.93% | |
| Daiwa Securities Group Inc. | 0.12% | 973,433 | $51,845,042 | $38,090,433 | -$13,754,609 | -26.53% | |
| Lansdowne Partners (Uk) Llp | 2.12% | 966,433 | $51,472,222 | $37,816,523 | -$13,655,699 | -26.53% | |
| Swiss National Bank | 0.03% | 956,548 | $50,945,746 | $37,429,723 | -$13,516,023 | -26.53% | |
| Lpl Financial Llc | 0.01% | 907,334 | $48,324,582 | $35,503,979 | -$12,820,603 | -26.53% | |
| Nuveen, Llc | 0.01% | 859,996 | $45,803,387 | $33,651,643 | -$12,151,744 | -26.53% | |
| Worldquant Millennium Advisors Llc | 0.15% | 836,927 | $44,574,732 | $32,748,954 | -$11,825,778 | -26.53% | |
| Bank Of Montreal | 0.02% | 829,020 | $44,153,605 | $32,439,553 | -$11,714,052 | -26.53% | |
| Two Sigma Investments, Lp | 0.03% | 805,647 | $42,908,759 | $31,524,967 | -$11,383,792 | -26.53% | |
| Unicom Systems, Inc. | 2.67% | 768,900 | $40,951,614 | $30,087,057 | -$10,864,557 | -26.53% | |
| Chevy Chase Trust Holdings, Llc | 0.10% | 707,634 | $37,688,588 | $27,689,718 | -$9,998,870 | -26.53% | |
| Tudor Investment Corp Et Al | 0.15% | 703,417 | $37,463,989 | $27,524,707 | -$9,939,282 | -26.53% | |
| Frontier Capital Management Co Llc | 0.33% | 666,404 | $35,492,677 | $26,076,389 | -$9,416,288 | -26.53% | |
| Fmr Llc | 0.00% | 660,126 | $35,158,315 | $25,830,730 | -$9,327,585 | -26.53% | |
| Sumitomo Mitsui Trust Group, Inc. | 0.02% | 636,380 | $33,893,599 | $24,901,549 | -$8,992,050 | -26.53% | |
| Victory Capital Management Inc | 0.02% | 630,279 | $33,569,278 | $24,662,817 | -$8,906,461 | -26.53% | |
| Nomura Holdings Inc | 0.14% | 630,196 | $33,564,239 | $24,659,569 | -$8,904,670 | -26.53% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 1,126,099 | $32,465,435 | $44,064,254 | +$11,598,819 | +35.73% |
Frequently asked questions about IONQ
Who owns the most IONQ stock?
The largest holders of IONQ 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 IONQ INC (IONQ).
Is IONQ widely held by superinvestors?
Many widely followed stocks like IONQ appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly IONQ 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.