로블록스 주식회사
MX ˙ BMV ˙ US7710491033
SecurityMX:RBLX / Roblox Corporation
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership277,447 shares
Latest Disclosed Value $ 15,692,402
Asset Management One Co., Ltd. reports 0.08% increase in ownership of RBLX / Roblox Corporation

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 277,447 shares of Roblox Corporation (MX:RBLX) valued at $15,692,402 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 277,234 shares of Roblox Corporation. This represents a change in shares of 0.08% during the quarter.

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.

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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)
2026-05-08 2026-03-31 13F ROBLOX CL A 771049103 277,447 213 0.08 15,692 -30.56 0.0463
2026-01-27 2025-12-31 13F ROBLOX CL A 771049103 277,234 4,305 1.58 22,598 -40.23 0.0628
2025-10-22 2025-09-30 13F ROBLOX CL A 771049103 272,929 34,012 14.24 37,806 50.42 0.1095
2025-07-31 2025-06-30 13F ROBLOX CL A 771049103 238,917 56,101 30.69 25,134 135.87 0.0788
2025-04-23 2025-03-31 13F ROBLOX CL A 771049103 182,816 10,172 5.89 10,656 3.83 0.0369
2025-01-30 2024-12-31 13F ROBLOX CL A 771049103 172,644 5,044 3.01 10,264 38.37 0.0353
2024-10-30 2024-09-30 13F ROBLOX CL A 771049103 167,600 -7,890 -4.50 7,418 13.60 0.0264
2024-07-18 2024-06-30 13F ROBLOX CL A 771049103 175,490 13,807 8.54 6,530 5.77 0.0250
2024-05-02 2024-03-31 13F ROBLOX CL A 771049103 161,683 -2,510 -1.53 6,173 -19.02 0.0238
2024-01-24 2023-12-31 13F ROBLOX CL A 771049103 164,193 995 0.61 7,623 61.30 0.0307
2023-10-19 2023-09-30 13F ROBLOX CL A 771049103 163,198 -3,418 -2.05 4,726 -29.61 0.0210
2023-07-31 2023-06-30 13F ROBLOX CL A 771049103 166,616 25,316 17.92 6,715 5.65 0.0284
2023-04-25 2023-03-31 13F ROBLOX CL A 771049103 141,300 2,905 2.10 6,356 69.24 0.0288
2023-02-06 2022-12-31 13F ROBLOX CL A 771049103 138,395 -801 -0.58 3,755 -24.72 0.0183
2022-11-04 2022-09-30 13F ROBLOX CL A 771049103 139,196 -7,922 -5.38 4,988 3.19 0.0254
2022-07-29 2022-06-30 13F ROBLOX CL A 771049103 147,118 146,053 13,713.90 4,834 9,765.31 0.0227
2022-05-13 2022-03-31 13F ROBLOX CL A 771049103 1,065 -326 -23.44 49 -63.70 0.0002
2022-02-09 2021-12-31 13F ROBLOX CL A 771049103 1,391 113 8.84 135 40.63 0.0005
2021-11-02 2021-09-30 13F ROBLOX CL A 771049103 1,278 -288 -18.39 96 -31.43 0.0004
2021-08-03 2021-06-30 13F ROBLOX CL A 771049103 1,566 1,566 140 0.0005
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.