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Built from publicly disclosed institutional and insider activity. Informational purposes only - not investment advice.OpenStocks · v0.1
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  3. Renaissance Technologies
  • Overview
  • Portfolio3.2k
  • Performance40Q
  • Options
  • Activity158k
  • News
Quant Hedge Fund · CIK 0001037389

Renaissance Technologies

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  • Large Fund

Renaissance Technologies, a quant hedge fund overseeing $64.46B in disclosed equity holdings (SEC CIK 0001037389). The latest portfolio (2025Q4) discloses 3185 positions across 11 sectors, with the largest positions in PLTR, UTHR and MU. On a mark-to-market basis the tracked portfolio has returned 38.3% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.

Track Renaissance's filingsView holdings↓
Portfolio
$64.46B
Positions
3185
Quarter
2025Q4
Filings tracked
40
1Y+38.3%Since filing+104.1%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q12023Q42023Q32023Q22023Q1
Biggest winner since filing
PLTRPALANTIR TECHNOLOGIES INC
+714.8%
+$1.13B
Biggest loser since filing
NFLXNETFLIX INC
-30.9%
−$312.4M

Investment strategy

Renaissance Technologies is a large fund. Disclosed equity book is between $10B and $100B.

Embed this chart
Paste this iframe anywhere to embed the live PLTR chart.
<iframe src="https://openstocks.me/embed/stocks/PLTR" width="100%" height="480" frameborder="0" loading="lazy" title="PLTR chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>
Preview: https://openstocks.me/embed/stocks/PLTR

Holdings

11 sectors
1200 positions
Top 3 = 5% of book · PLTR, UTHR, MU
View full portfolio →

Performance

vs SPY
40 quarters tracked
Mark-to-market portfolio growth vs SPY benchmark, with AUM and concentration history.
View performance →

Options & derivatives

No options
Renaissance Technologies has no PUT or CALL positions disclosed for this quarter.
View options →

Activity & trades

Quarter-by-quarter
Last move 2025Q4
TRIM PACS — and 4 more recent moves.
View activity →

Recent transactions

See full activity →
TRIM
Renaissance Technologies trimmed PACS
PACS GROUP INC
−80,600
~$38.39 · 2025Q4
2026-02-12
ADD
Renaissance Technologies added to CALC
CALCIMEDICA INC
+18,300
~$6.59 · 2025Q4
2026-02-12
ADD
Renaissance Technologies added to ACCO
ACCO BRANDS CORP
+321,400
~$3.73 · 2025Q4
2026-02-12
NEW
Renaissance Technologies opened a new position in 92864M772
VOLATILITY SHS TR
+51,600
~$4.93 · 2025Q4
2026-02-12
NEW
Renaissance Technologies opened a new position in ETHT
PROSHARES TR
+53,520
~$37.58 · 2025Q4
2026-02-12
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