Massachusetts Financial Services Co. MA disclosed on November 17, 2025, that it had increased its stake in Roblox Corporation by 47.0% during the second quarter. The firm now holds 4,788,195 shares, valued at approximately $504 million, which accounts for about 0.74% of the company. This move was part of a broader trend of institutional activity, with several other large funds also increasing their positions. In contrast, other filings on the same day showed some firms trimming their stakes. AlpInvest Partners B.V. reduced its holdings by 60.0% in the second quarter. The disclosures come alongside reports of recent insider selling in early November. Collectively, institutional investors now own about 94.46% of Roblox's stock. There was no immediate analysis of market reaction to these specific filings.