로블록스 주식회사
MX ˙ BMV ˙ US7710491033
SecurityMX:RBLX / Roblox Corporation
InstitutionCitigroup Inc
Latest Disclosed Ownership728,869 shares
Latest Disclosed Value $ 41,224,830
Citigroup Inc ownership in RBLX / Roblox Corporation

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 728,869 shares of Roblox Corporation (MX:RBLX) valued at $41,224,830 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 651,532 shares of Roblox Corporation. This represents a change in shares of 11.87% during the quarter.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (RBLX) in the form of stock options. The firm currently holds call options representing 50,000 of underlying shares valued at $2,828,000 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:RBLX / Roblox Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F ROBLOX CL A 771049103 728,869 77,337 11.87 41,225 -21.91 0.0088
2026-02-13 2025-12-31 13F ROBLOX CL A 771049103 651,532 -229,043 -26.01 52,794 -56.72 0.0233
2025-11-10 2025-09-30 13F ROBLOX CL A 771049103 880,575 558,738 173.61 121,977 260.27 0.0544
2025-08-11 2025-06-30 13F ROBLOX CL A 771049103 321,837 54,707 20.48 33,857 117.44 0.0166
2025-05-12 2025-03-31 13F ROBLOX CL A 771049103 267,130 59,254 28.50 15,571 29.47 0.0080
2025-02-12 2024-12-31 13F ROBLOX CL A 771049103 207,876 -1,012,084 -82.96 12,028 -77.73 0.0071
2024-11-12 2024-09-30 13F ROBLOX CL A 771049103 1,219,960 -500,262 -29.08 53,995 -15.64 0.0313
2024-08-12 2024-06-30 13F ROBLOX CL A 771049103 1,720,222 -296,417 -14.70 64,009 -16.87 0.0410
2024-05-10 2024-03-31 13F ROBLOX CL A 771049103 2,016,639 444,870 28.30 76,995 7.14 0.0506
2024-02-09 2023-12-31 13F ROBLOX CL A 771049103 1,571,769 415,291 35.91 71,861 114.57 0.0506
2023-12-06 2023-09-30 13F/A-1 ROBLOX CL A 771049103 1,156,478 687,598 146.65 33,492 77.25 0.0250
2023-11-09 2023-09-30 13F ROBLOX CL A 771049103 1,156,478 687,598 33,492 0.0100
2023-08-10 2023-06-30 13F ROBLOX CL A 771049103 468,880 -240,509 -33.90 18,896 -40.78 0.0124
2023-05-11 2023-03-31 13F ROBLOX CL A 771049103 709,389 526,645 288.19 31,908 513.62 0.0224
2023-02-09 2022-12-31 13F ROBLOX CL A 771049103 182,744 -30,467 -14.29 5,201 -31.95 0.0041
2022-11-10 2022-09-30 13F ROBLOX CL A 771049103 213,211 19,351 9.98 7,641 19.95 0.0055
2022-08-10 2022-06-30 13F ROBLOX CL A 771049103 193,860 -839,638 -81.24 6,370 -86.67 0.0047
2022-05-12 2022-03-31 13F ROBLOX CL A 771049103 1,033,498 674,122 187.58 47,789 28.91 0.0291
2022-02-10 2021-12-31 13F ROBLOX CL A 771049103 359,376 -4,062 -1.12 37,073 35.03 0.0199
2021-11-10 2021-09-30 13F ROBLOX CL A 771049103 363,438 317,906 698.20 27,456 570.15 0.0162
2021-08-10 2021-06-30 13F ROBLOX CL A 771049103 45,532 41,752 1,104.55 4,097 1,572.24 0.0025
2021-05-13 2021-03-31 13F ROBLOX CL A 771049103 3,780 3,780 245 0.0002
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-11 2026-03-31 13F ROBLOX CL A Call 50,000 2,828 n/a n/a n/a
2025-11-10 2025-09-30 13F ROBLOX CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-11 2025-06-30 13F ROBLOX CL A Call 13,500 -78.71 1,420 -61.57 n/a n/a n/a
2025-05-12 2025-03-31 13F ROBLOX CL A Call 63,400 -80.47 3,696 -80.33 n/a n/a n/a
2025-02-12 2024-12-31 13F ROBLOX CL A Call 324,600 18,781 n/a n/a n/a
2024-08-12 2024-06-30 13F ROBLOX CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-10 2024-03-31 13F ROBLOX CL A Call 321,600 -46.60 12,279 -55.41 n/a n/a n/a
2024-02-09 2023-12-31 13F ROBLOX CL A Call 602,300 114.57 27,537 238.75 n/a n/a n/a
2023-12-06 2023-09-30 13F/A ROBLOX CL A Call 280,700 0.00 8,129 -28.14 n/a n/a n/a
2023-11-09 2023-09-30 13F ROBLOX CL A Call 280,700 8,129 n/a n/a n/a
2023-08-10 2023-06-30 13F ROBLOX CL A Call 280,700 -55.21 11,312 -59.87 n/a n/a n/a
2023-05-11 2023-03-31 13F ROBLOX CL A Call 626,700 944.50 28,189 1,551.32 n/a n/a n/a
2023-02-09 2022-12-31 13F ROBLOX CL A Call 60,000 -33.33 1,708 -47.09 n/a n/a n/a
2022-11-10 2022-09-30 13F ROBLOX CL A Call 90,000 -30.77 3,226 -24.49 n/a n/a n/a
2022-08-10 2022-06-30 13F ROBLOX CL A Call 130,000 78.08 4,272 26.54 n/a n/a n/a
2022-05-12 2022-03-31 13F ROBLOX CL A Call 73,000 3,376 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-11 2025-06-30 13F ROBLOX CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-12 2025-03-31 13F ROBLOX CL A Put 138,400 -44.64 8,067 -44.23 n/a n/a n/a
2025-02-12 2024-12-31 13F ROBLOX CL A Put 250,000 900.00 14,465 1,207.87 n/a n/a n/a
2024-11-12 2024-09-30 13F ROBLOX CL A Put 25,000 1,106 n/a n/a n/a
2024-05-10 2024-03-31 13F ROBLOX CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F ROBLOX CL A Put 60,000 2,743 n/a n/a n/a
2023-08-10 2023-06-30 13F ROBLOX CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-11 2023-03-31 13F ROBLOX CL A Put 290,000 625.00 13,044 1,046.22 n/a n/a n/a
2023-02-09 2022-12-31 13F ROBLOX CL A Put 40,000 -20.79 1,138 -37.13 n/a n/a n/a
2022-11-10 2022-09-30 13F ROBLOX CL A Put 50,500 -54.30 1,810 -50.15 n/a n/a n/a
2022-08-10 2022-06-30 13F ROBLOX CL A Put 110,500 -68.56 3,631 -77.66 n/a n/a n/a
2022-05-12 2022-03-31 13F ROBLOX CL A Put 351,500 16,253 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.