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Jeremy Grantham's Roblox Corporation (RBLX) position

Not anymore: Jeremy Grantham fully exited RBLX in Q4 2025. The position peaked at $446K in Q3 2025.
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Value at exit
$446K
Shares at exit
3K
Est. average buy price (i)
$124.28
Quarter-end price
$138.52

Estimated trade prices

Average price in quarters with purchases
$124.28

RBLX price vs Grantham's position

1Y 3Y 5Y MAX
Dates
$20$50$100$150202420252026New position of 3K shares · Q3 2025. Average closing price $124.28 · Price range $100.65–$141.563Ksharespurchased
Average closing price · filing quarter
$124.28
Price range · filing quarter
$100.65 – $141.56
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q4 2025 Exited −3K −$342K −100.0% 0 Feb 17, 2026
Q3 2025 New +3K +$400K – 3K Nov 13, 2025
Data through Q4 2025 · filed Feb 17, 2026
2 grouped rows from 2 quarters

More Grantham positions

Microsoft Corporation(MSFT)
$2.3B
5.8% of portfolio

Alphabet Inc.(GOOGL)
$1.9B
5.1% of portfolio

Johnson & Johnson(JNJ)
$1.8B
4.6% of portfolio

Apple Inc.(AAPL)
$1.8B
4.5% of portfolio

Meta Platforms, Inc.(META)
$1.7B
4.5% of portfolio

Lam Research Corporation(LRCX)
$1.4B
3.8% of portfolio

Common questions

Does Jeremy Grantham own RBLX?

Not currently. Jeremy Grantham fully exited RBLX in Q4 2025, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jeremy Grantham buy RBLX?

Jeremy Grantham first disclosed a RBLX position in Q3 2025; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jeremy Grantham sell RBLX?

Yes. Jeremy Grantham reduced and then fully exited RBLX by Q4 2025; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of RBLX does Jeremy Grantham own?

None as of the latest filing: Jeremy Grantham has exited RBLX. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jeremy Grantham pay for RBLX?

Jeremy Grantham's estimated average buy price for RBLX is $124.28, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.