ROBLOX CORP -CLASS A (RBLX) Institutional Shareholders
ROBLOX CORP -CLASS A (RBLX) 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 $28.81B in RBLX holdings during the latest filing period.
Fmr Llc is currently the largest disclosed institutional shareholder of RBLX tracked by InsiderSet, reporting ownership valued at approximately $2.64B 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 $1.71B, representing an estimated loss of -35.17% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 53% of the total disclosed RBLX value among the investors covered in this analysis. Major shareholders include Fmr Llc, Blackrock, Inc., Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in ROBLOX CORP -CLASS A (RBLX).
This page ranks the largest institutional RBLX 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
811
Total Reported Value
$28.81B
Largest Holder
Fmr Llc
Largest Position
$2.64B
Insider Transactions (90d)
39
Latest Filing Quarter
Q2 2026
New Institutional Positions
54
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.14% | 46,619,099 | $2,636,776,198 | $1,709,522,360 | -$927,253,838 | -35.17% | |
| Blackrock, Inc. | 0.04% | 39,079,760 | $2,210,351,250 | $1,433,054,799 | -$777,296,451 | -35.17% | |
| Vanguard Portfolio Management Llc | 0.09% | 30,600,996 | $1,730,792,334 | $1,122,138,523 | -$608,653,811 | -35.17% | |
| Capital International Investors | 0.39% | 29,177,063 | $1,649,584,595 | $1,069,922,900 | -$579,661,695 | -35.14% | |
| Vanguard Capital Management Llc | 0.04% | 28,552,688 | $1,614,940,033 | $1,047,027,069 | -$567,912,964 | -35.17% | |
| Morgan Stanley | 0.08% | 23,073,205 | $1,305,020,645 | $846,094,427 | -$458,926,218 | -35.17% | |
| Capital World Investors | 0.17% | 22,473,240 | $1,270,949,997 | $824,093,711 | -$446,856,286 | -35.16% | |
| Baillie Gifford & Co | 1.24% | 21,423,012 | $1,211,685,558 | $785,581,850 | -$426,103,708 | -35.17% | |
| Ieq Capital, Llc | 4.34% | 16,530,247 | $934,950,780 | $606,164,157 | -$328,786,623 | -35.17% | |
| State Street Corp | 0.03% | 14,235,590 | $805,164,970 | $522,019,085 | -$283,145,885 | -35.17% | |
| Geode Capital Management, Llc | 0.04% | 12,266,000 | $692,083,369 | $449,794,220 | -$242,289,149 | -35.01% | |
| Two Sigma Investments, Lp | 0.57% | 12,043,968 | $681,206,830 | $441,652,307 | -$239,554,523 | -35.17% | |
| Aqr Capital Management Llc | 0.21% | 8,279,158 | $449,889,416 | $303,596,724 | -$146,292,692 | -32.52% | |
| Temasek Holdings (Private) Ltd | 1.48% | 7,777,760 | $439,910,106 | $285,210,459 | -$154,699,647 | -35.17% | |
| Renaissance Technologies LLC | Jim Simons | 0.63% | 7,126,134 | $403,054,183 | $261,315,334 | -$141,738,849 | -35.17% |
| Srs Investment Management, Llc | 3.94% | 6,601,674 | $373,390,681 | $242,083,386 | -$131,307,295 | -35.17% | |
| Goldman Sachs Group Inc | 0.05% | 6,094,792 | $344,721,430 | $223,496,023 | -$121,225,407 | -35.17% | |
| ARK Invest | Cathie Wood | 2.59% | 5,896,106 | $333,483,744 | $216,210,207 | -$117,273,537 | -35.17% |
| ValueAct Holdings | Jeffrey Ubben | 5.79% | 5,848,621 | $330,798,004 | $214,468,932 | -$116,329,072 | -35.17% |
| Artisan Partners Limited Partnership | 0.54% | 5,812,398 | $328,749,235 | $213,140,635 | -$115,608,600 | -35.17% | |
| Amundi | 0.09% | 5,774,151 | $326,585,980 | $211,738,117 | -$114,847,863 | -35.17% | |
| Fil Ltd | 0.25% | 5,665,491 | $320,440,171 | $207,753,555 | -$112,686,616 | -35.17% | |
| D. E. Shaw & Co., Inc. | 0.20% | 4,514,911 | $255,363,366 | $165,561,786 | -$89,801,580 | -35.17% | |
| Sumitomo Mitsui Trust Group, Inc. | 0.14% | 4,642,855 | $252,478,455 | $170,253,493 | -$82,224,962 | -32.57% | |
| Vanguard Fiduciary Trust Co | 0.06% | 4,166,339 | $235,648,134 | $152,779,651 | -$82,868,483 | -35.17% | |
| Northern Trust Corp | 0.03% | 3,716,826 | $210,223,678 | $136,296,009 | -$73,927,669 | -35.17% | |
| Whale Rock Capital Management Llc | 2.58% | 3,532,184 | $199,780,327 | $129,525,187 | -$70,255,140 | -35.17% | |
| Bnp Paribas Financial Markets | 0.13% | 3,417,009 | $193,266,029 | $125,301,720 | -$67,964,309 | -35.17% | |
| Franklin Resources Inc | 0.05% | 3,389,479 | $191,708,931 | $124,292,195 | -$67,416,736 | -35.17% | |
| Amova Asset Management Americas, Inc. | 2.59% | 3,238,160 | $183,247,474 | $118,743,327 | -$64,504,147 | -35.20% | |
| Massachusetts Financial Services Co | 0.06% | 3,194,052 | $174,336,616 | $117,125,887 | -$57,210,729 | -32.82% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.03% | 2,850,831 | $161,243,003 | $104,539,973 | -$56,703,030 | -35.17% | |
| Sands Capital Management, Llc | 0.61% | 2,726,701 | $154,222,209 | $99,988,126 | -$54,234,083 | -35.17% | |
| Legal & General Group Plc | 0.04% | 2,694,177 | $152,382,654 | $98,795,471 | -$53,587,183 | -35.17% | |
| Contour Asset Management Llc | 4.60% | 2,502,196 | $141,524,205 | $91,755,527 | -$49,768,678 | -35.17% | |
| Charles Schwab Investment Management Inc | 0.02% | 2,393,325 | $135,366,462 | $87,763,228 | -$47,603,234 | -35.17% | |
| Bank Of America Corp | 0.01% | 2,353,704 | $133,125,474 | $86,310,326 | -$46,815,148 | -35.17% | |
| Qube Research & Technologies Ltd | 0.18% | 2,283,075 | $129,130,722 | $83,720,360 | -$45,410,362 | -35.17% | |
| Worldquant Millennium Advisors Llc | 0.50% | 2,271,667 | $128,485,486 | $83,302,029 | -$45,183,457 | -35.17% | |
| Wellington Management Group Llp | 0.02% | 2,269,639 | $128,370,781 | $83,227,662 | -$45,143,119 | -35.17% | |
| Clearbridge Investments, Llc | 0.11% | 2,170,490 | $122,762,935 | $79,591,868 | -$43,171,067 | -35.17% | |
| Marshall Wace, Llp | 0.13% | 2,163,349 | $122,359,020 | $79,330,008 | -$43,029,012 | -35.17% | |
| Foxhaven Asset Management, Lp | 3.78% | 2,131,061 | $120,532,810 | $78,146,007 | -$42,386,803 | -35.17% | |
| Nuveen, Llc | 0.03% | 2,068,575 | $116,998,602 | $75,854,645 | -$41,143,957 | -35.17% | |
| Deutsche Bank Ag\ | 0.04% | 1,947,565 | $110,154,278 | $71,417,209 | -$38,737,069 | -35.17% | |
| Ubs Group Ag | 0.02% | 1,866,297 | $105,557,758 | $68,437,111 | -$37,120,647 | -35.17% | |
| Assenagon Asset Management S.A. | 0.13% | 1,893,790 | $102,984,300 | $69,445,279 | -$33,539,021 | -32.57% | |
| Raymond James Financial Inc | 0.03% | 1,928,366 | $102,722,499 | $70,713,181 | -$32,009,318 | -31.16% | |
| Swiss National Bank | 0.06% | 1,729,700 | $97,831,832 | $63,428,099 | -$34,403,733 | -35.17% | |
| Bank Of New York Mellon Corp | 0.02% | 1,692,618 | $95,734,466 | $62,068,302 | -$33,666,164 | -35.17% |
Frequently asked questions about RBLX
Who owns the most RBLX stock?
The largest holders of RBLX 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 ROBLOX CORP -CLASS A (RBLX).
Is RBLX widely held by superinvestors?
Many widely followed stocks like RBLX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly RBLX 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.