Q
QuantAbundance
Hedge Fund

Renaissance Technologies

Jim Simons (founder)

The quantitative firm Jim Simons founded in 1982, known for the Medallion fund. Its 13F-HR lists thousands of short-horizon positions driven by statistical models, so the holdings change a lot from quarter to quarter.

CIK 0001037389www.rentec.com ↗
Filing13F-HR
Period2026-09-30
Disclosed$73.4B
Positions3150
Shown30 (23.4%)
SourceEDGAR

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Frequently asked questions

What stocks does Renaissance Technologies hold?
Renaissance Technologies (Jim Simons (founder)) discloses 30 positions as of 2026-09-30. Top by weight: MU (2.21%), GOOGL (1.87%), AMD (1.64%), UTHR (1.24%), INTC (1.14%).
What is Renaissance Technologies's largest position?
MU (Micron Technology, Inc.) is Renaissance Technologies's largest disclosed position at 2.21% of the portfolio - $1.6B.
When did Renaissance Technologies last file?
Renaissance Technologies's most recent disclosed filing is 13F-HR for period 2026-09-30 (3150 positions total).
Who is Renaissance Technologies?
The quantitative firm Jim Simons founded in 1982, known for the Medallion fund. Its 13F-HR lists thousands of short-horizon positions driven by statistical models, so the holdings change a lot from quarter to quarter.