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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. Stephen Mandel (Lone Pine Capital)
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Stephen Mandel

Lone Pine Capital
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  • Hedge Fund · CIK 0001061165
  • Large Fund

Stephen Mandel runs Lone Pine Capital, a hedge fund overseeing $13.61B in disclosed equity holdings (SEC CIK 0001061165). The latest portfolio (2025Q4) discloses 32 positions across 9 sectors, with the largest positions in TSM, VST and CVNA. On a mark-to-market basis the tracked portfolio has returned 170.3% since 2016Q1. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.

Track Stephen's filingsView holdings↓
Portfolio
$13.61B
Positions
32
Quarter
2025Q4
Filings tracked
40
Since filing+170.3%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q12023Q42023Q32023Q22023Q1

Not enough filing history to compute mark-to-market returns for Stephen Mandel.

We need at least one year of portfolio coverage with priceable positions.

Performance overview

We mark Stephen Mandel (Lone Pine Capital)'s disclosed portfolio to current market prices and compare its growth against the S&P 500 (SPY). Stephen’s portfolio is 170.3% since 2016Q1.

Portfolio growth vs SPY
Rebased to 100 at 2021Q2 · through 2025Q4
Stephen Mandel
+117.4%
SPY
+69.5%
Alpha
+47.8pp
48951411882342021Q22023Q32025Q4
Portfolio line is the GIPS-compliant time-weighted return chain-linked across the manager's quarterly 13F filings — unaffected by capital flows. Quarters with insufficient held-through coverage are skipped, which can briefly flatten the line.
Capital flow per quarter
BuysSellsNet
+$11.03B+$5.51B$0-$5.51B-$11.03B'20Q2'20Q3'20Q4'21Q1'21Q2'21Q3'21Q4'22Q1'22Q2'22Q3'22Q4'23Q1'23Q2'23Q3'23Q4'24Q1
Latest · 2024Q1
-$617M
Lifetime buys
$61.94B
Lifetime sells
$75.39B
Portfolio over time
AUMPositions
$0$10.24B$20.48B$31.03B4125'20Q2'22Q1'24Q1
QoQ AUM
+9.6%
16Q lifetime AUM
-34.9%
QoQ positions
+1
16Q lifetime positions
-2
Position concentration
26 positions
Top 1
8%
of book
  • Top 18%$1.04BMETA
  • Top 2-525%$3.19BTSM, MSFT, AMZN
  • Top 6-1024%$3.03BKKR, PM, INTU
  • Top 11-2032%$4.11BBBWI, ASML, VST
  • Rest10%$1.31BRest of port