2026-06-30 · Ticker lens
Who Owns RBLX? A Cross-Filer Look
RBLX across 5 tracked filers: values, change flags, holder comparison.
Two Sigma Investments just charged into ROBLOX CORP -CLASS A with a massive $681,206,830 stake, marking it as a "New Position" in their latest filing. Contrast this aggressive entry with Whale Rock Capital, which decided to scale back its own exposure, dropping its holdings to $199,780,327 while maintaining a portfolio weight of 2.5803834197821285%.
A deep dive into the 13F whale cluster
The total 13F value across these five funds stands at $2,057,435,190, a significant sum for a Communication Services play trading at a market price of $54.34. We are looking at a whaleCount of 5 heavy hitters, each treating the ticker with varying degrees of conviction. While some are doubling down, others are finding reasons to trim their sails. The 13F screener highlights how these institutional shifts often signal changing internal models regarding the long-term viability of the metaverse platform.
Why Two Sigma is the biggest story
Two Sigma Investments now sits as the largest holder in this group, with a 0.5496676100240099% weight in their book dedicated to this single ticker. Entering as a "New Position" suggests a shift in their algorithmic or fundamental assessment of the company. It is rare to see a fund of that size establish such a significant position from scratch in a single reporting period.
The curious case of the holdouts and the boosters
Temasek Holdings chose a different path entirely, keeping their $439,910,106 stake completely "Unchanged." Their 1.4430447930259769% portfolio weight indicates they are comfortable with the status quo, even as the broader market sentiment fluctuates. Compare that to the tactical movements seen elsewhere in the data.
Renaissance Technologies, for instance, reported that they "Increased" their stake to $403,054,183. They now hold a 0.6304627835338937% weight, showing they are incrementally adding to what they likely view as a core growth asset.
Then there is ARK Investment Management, which also "Increased" their holdings. Their total value in the stock is now $333,483,744, representing a 2.5932899463387518% slice of their portfolio. This is the highest percentage allocation among the group, signaling that despite the volatility, the stock remains a central pillar of their investment thesis.
Trimming at the edges
Whale Rock Capital presents the counter-narrative here. By checking the "Decreased" flag, we see them moving to a $199,780,327 position. Even with this reduction, their 2.5803834197821285% portfolio weight remains notably high, very close to the concentration levels seen at ARK. It appears that while they have taken some chips off the table, the fund remains deeply committed to the underlying asset.
The range of portfolio weights, spanning from 0.5496676100240099% at Two Sigma to the 2.5932899463387518% seen at ARK, demonstrates that there is no consensus on how much this asset should occupy a balanced book. Some of these firms clearly see it as a heavy-duty conviction play, while others prefer to keep it as a smaller, perhaps more speculative, slice of their total 13F assets. The presence of five major institutions holding over $2 billion in aggregate value suggests that the institutional appetite for this ticker remains strong, even if individual strategies for managing that exposure are currently diverging significantly. Seeing a new entry from a quantitative giant like Two Sigma alongside a steady-state hold from a global investor like Temasek creates a fascinating tension for anyone tracking how capital flows into the Communication Services sector. We will keep watching how these weight percentages shift in the coming quarters to see if the "New Position" from Two Sigma eventually grows to match the concentration levels currently favored by ARK and Whale Rock.
This report is not investment advice; 13F filings are delayed by nature.