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Jim Simons's Rambus Inc. (RMBS) position

Not anymore: Jim Simons fully exited RMBS in Q2 2025. The position peaked at $30M in Q1 2021.
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Value at exit
$1.2M
Shares at exit
23K
Est. average buy price (i)
$57.45
Quarter-end price
$51.78

Estimated trade prices

Average price in quarters with purchases
$35.67
Average prices in quarters with sales
  • Q4 2022: $33.82 (5K shares sold)
  • Q3 2022: $25.00 (149K shares sold)
  • Q1 2022: $27.68 (287K shares sold)
  • Q3 2021: $23.54 (760K shares sold)
  • Q2 2021: $20.13 (556K shares sold)

RMBS price vs Simons's position

1Y 3Y 5Y MAX
Dates
$20$50$100$15020222023202420252026Sold 760K shares (78.4%) · Q3 2021. Average closing price $23.54 · Price range $22.20–$25.01760KsharessoldAdded 88K shares (42.0%) · Q4 2021. Average closing price $25.43 · Price range $21.80–$29.6888KsharespurchasedSold 287K shares (96.9%) · Q1 2022. Average closing price $27.68 · Price range $23.76–$33.60287KsharessoldAdded 196K shares (over 1,000%) · Q2 2022. Average closing price $24.73 · Price range $20.75–$31.43196KsharespurchasedSold 149K shares (72.7%) · Q3 2022. Average closing price $25.00 · Price range $20.59–$28.65149KsharessoldSold 5K shares (8.2%) · Q4 2022. Average closing price $33.82 · Price range $25.85–$38.705KsharessoldAdded 206K shares (400.9%) · Q1 2023. Average closing price $42.95 · Price range $35.02–$51.26206KsharespurchasedAdded 54K shares (20.8%) · Q2 2023. Average closing price $55.06 · Price range $44.34–$66.5254KsharespurchasedNew position of 4K shares · Q4 2024. Average closing price $50.98 · Price range $40.13–$59.144KsharespurchasedAdded 19K shares (502.6%) · Q1 2025. Average closing price $58.74 · Price range $51.55–$68.5919Ksharespurchased← Earlier —1 sell
Average closing price · filing quarter
$58.74
Price range · filing quarter
$51.55 – $68.59
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q2 2025 Exited −23K −$1.2M −100.0% 0 Aug 13, 2025
Q1 2025 Added +19K +$1.1M +502.6% 23K May 14, 2025
Q4 2024 New +4K +$194K – 4K Feb 13, 2025
Q2 2023 Added +54K +$3.0M +20.8% 312K Aug 11, 2023
Q1 2023 Added +206K +$8.9M +400.9% 258K May 12, 2023
Q4 2022 Reduced −5K −$156K −8.2% 52K Feb 13, 2023
Q3 2022 Reduced −149K −$3.7M −72.7% 56K Nov 14, 2022
Q2 2022 Added +196K +$4.9M +2,157.0% 205K Aug 12, 2022
Q1 2022 Reduced −287K −$8.0M −96.9% 9K May 13, 2022
Q4 2021 Added +88K +$2.2M +42.0% 296K Feb 11, 2022
Q3 2021 Reduced −760K −$18M −78.4% 209K Nov 12, 2021
Q2 2021 Reduced −556K −$11M −36.5% 969K Aug 13, 2021
Q1 2021 First covered – – – 1.5M May 13, 2021
Data through Q2 2025 · filed Aug 13, 2025
13 grouped rows from 13 quarters

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Common questions

Does Jim Simons own RMBS?

Not currently. Jim Simons fully exited RMBS in Q2 2025, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy RMBS?

Jim Simons held RMBS since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jim Simons sell RMBS?

Yes. Jim Simons reduced and then fully exited RMBS by Q2 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 RMBS does Jim Simons own?

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

What price did Jim Simons pay for RMBS?

Jim Simons's estimated average buy price for RMBS is $57.45, 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.