IONQ INC (IONQ) Top 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 March 31, 2026. The institutional investors covered on this page collectively reported approximately $5.63B in IONQ holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of IONQ tracked by InsiderSet, reporting ownership valued at approximately $861.18M in its March 31, 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 $1.63B, representing an estimated gain of +89.70% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 63% of the total disclosed IONQ value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Morgan Stanley, Vanguard Portfolio 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
617
Total Reported Value
$5.63B
Largest Holder
Blackrock, Inc.
Largest Position
$861.18M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
57
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 29,870,942 | $861,179,243 | $1,633,641,818 | +$772,462,575 | +89.70% | |
| Morgan Stanley | 0.04% | 21,159,892 | $610,039,766 | $1,157,234,493 | +$547,194,727 | +89.70% | |
| Vanguard Portfolio Management Llc | 0.02% | 15,389,580 | $443,681,591 | $841,656,130 | +$397,974,539 | +89.70% | |
| Vanguard Capital Management Llc | 0.01% | 15,064,048 | $434,296,504 | $823,852,785 | +$389,556,281 | +89.70% | |
| Defiance Etfs, Llc | 4.02% | 9,702,302 | $279,717,368 | $530,618,896 | +$250,901,528 | +89.70% | |
| State Street Corp | 0.01% | 9,270,862 | $267,278,951 | $507,023,443 | +$239,744,492 | +89.70% | |
| Geode Capital Management, Llc | 0.02% | 8,440,065 | $242,918,150 | $461,587,155 | +$218,669,005 | +90.02% | |
| Ubs Group Ag | 0.03% | 5,805,726 | $167,379,082 | $317,515,155 | +$150,136,073 | +89.70% | |
| Marex Group Plc | 1.33% | 4,005,912 | $115,490,443 | $219,083,327 | +$103,592,884 | +89.70% | |
| Goldman Sachs Group Inc | 0.01% | 3,553,733 | $102,454,122 | $194,353,658 | +$91,899,536 | +89.70% | |
| Northern Trust Corp | 0.01% | 3,235,305 | $93,273,843 | $176,938,830 | +$83,664,987 | +89.70% | |
| Charles Schwab Investment Management Inc | 0.01% | 2,901,900 | $83,661,777 | $158,704,911 | +$75,043,134 | +89.70% | |
| Vanguard Fiduciary Trust Co | 0.02% | 2,380,191 | $68,620,907 | $130,172,646 | +$61,551,739 | +89.70% | |
| Two Sigma Investments, Lp | 0.06% | 2,343,951 | $67,576,107 | $128,190,680 | +$60,614,573 | +89.70% | |
| D. E. Shaw & Co., Inc. | 0.04% | 1,901,383 | $54,816,872 | $103,986,636 | +$49,169,764 | +89.70% | |
| Clear Street Group Inc. | 0.30% | 1,831,530 | $52,803,010 | $100,166,376 | +$47,363,366 | +89.70% | |
| Bank Of New York Mellon Corp | 0.01% | 1,815,366 | $52,336,989 | $99,282,367 | +$46,945,378 | +89.70% | |
| Bank Of America Corp | 0.00% | 1,808,351 | $52,134,770 | $98,898,716 | +$46,763,946 | +89.70% | |
| Fmr Llc | 0.00% | 1,695,185 | $48,872,175 | $92,709,668 | +$43,837,493 | +89.70% | |
| Legal & General Group Plc | 0.01% | 1,593,717 | $45,946,866 | $87,160,383 | +$41,213,517 | +89.70% | |
| Jane Street Group, Llc | 0.04% | 1,451,705 | $41,852,655 | $79,393,746 | +$37,541,091 | +89.70% | |
| Westfield Capital Management Co Lp | 0.17% | 1,373,788 | $39,606,308 | $75,132,466 | +$35,526,158 | +89.70% | |
| National Bank Of Canada | 0.04% | 1,333,373 | $38,441,210 | $72,922,169 | +$34,480,959 | +89.70% | |
| Nuveen, Llc | 0.01% | 1,286,223 | $37,081,809 | $70,343,536 | +$33,261,727 | +89.70% | |
| Bnp Paribas Financial Markets | 0.02% | 1,221,885 | $35,226,945 | $66,824,891 | +$31,597,946 | +89.70% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 1,126,099 | $32,465,435 | $61,586,354 | +$29,120,919 | +89.70% | |
| Alyeska Investment Group, L.P. | 0.09% | 1,116,071 | $32,176,327 | $61,037,923 | +$28,861,596 | +89.70% | |
| Cantor Fitzgerald, L. P. | 1.13% | 1,077,326 | $31,059,309 | $58,918,959 | +$27,859,650 | +89.70% | |
| Susquehanna International Group, Llp | 0.04% | 1,075,857 | $31,016,957 | $58,838,619 | +$27,821,662 | +89.70% | |
| Bank Of Montreal | 0.01% | 1,035,633 | $29,857,301 | $56,638,769 | +$26,781,468 | +89.70% | |
| Wellington Management Group Llp | 0.01% | 1,015,368 | $29,273,058 | $55,530,476 | +$26,257,418 | +89.70% | |
| Dimensional Fund Advisors Lp | 0.01% | 930,320 | $26,776,514 | $50,879,201 | +$24,102,687 | +90.01% | |
| Amundi | 0.01% | 926,989 | $26,725,093 | $50,697,028 | +$23,971,935 | +89.70% | |
| Eversource Wealth Advisors, Llc | 0.80% | 63,408 | $26,266,670 | $3,467,784 | -$22,798,886 | -86.80% | |
| Voya Investment Management Llc | 0.03% | 886,284 | $25,551,568 | $48,470,872 | +$22,919,304 | +89.70% | |
| Swiss National Bank | 0.01% | 866,648 | $24,985,462 | $47,396,979 | +$22,411,517 | +89.70% | |
| Heights Capital Management, Inc | 6.58% | 815,542 | $23,512,076 | $44,601,992 | +$21,089,916 | +89.70% | |
| Deutsche Bank Ag\ | 0.01% | 814,960 | $23,495,296 | $44,570,162 | +$21,074,866 | +89.70% | |
| Lansdowne Partners (Uk) Llp | 1.23% | 795,585 | $22,936,716 | $43,510,544 | +$20,573,828 | +89.70% | |
| Unicom Systems, Inc. | 2.27% | 768,900 | $22,167,387 | $42,051,141 | +$19,883,754 | +89.70% | |
| Ghisallo Capital Management Llc | 0.60% | 750,000 | $21,622,500 | $41,017,500 | +$19,395,000 | +89.70% | |
| Chevy Chase Trust Holdings, Llc | 0.06% | 731,800 | $21,097,793 | $40,022,142 | +$18,924,349 | +89.70% | |
| Alliancebernstein L.P. | 0.01% | 465,507 | $20,887,299 | $25,458,578 | +$4,571,279 | +21.89% | |
| Lpl Financial Llc | 0.01% | 657,100 | $18,944,179 | $35,936,799 | +$16,992,620 | +89.70% | |
| Nomura Asset Management International Inc. | 0.03% | 648,919 | $18,708,000 | $35,489,380 | +$16,781,380 | +89.70% | |
| Victory Capital Management Inc | 0.01% | 647,457 | $18,666,453 | $35,409,423 | +$16,742,970 | +89.70% | |
| Clearbridge Investments, Llc | 0.02% | 615,724 | $17,751,314 | $33,673,946 | +$15,922,632 | +89.70% | |
| Nomura Holdings Inc | 0.14% | 600,494 | $17,312,242 | $32,841,017 | +$15,528,775 | +89.70% | |
| Sumitomo Mitsui Trust Group, Inc. | 0.01% | 567,593 | $16,363,706 | $31,041,661 | +$14,677,955 | +89.70% | |
| Quadrature Capital Ltd | 0.19% | 565,293 | $16,297,397 | $30,915,874 | +$14,618,477 | +89.70% |
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.