SEC 13F Intelligence

Notable Investors / Q1 2026

Brad Gerstner’s Portfolio — Altimeter Capital Management, LP

Founder & CEO, Altimeter Capital

CIK 0001541617 · 2550 SAND HILL RD, SUITE 150, MENLO PARK, CA, 94025 · 6502578355

About Brad Gerstner

Brad Gerstner founded Altimeter Capital, a crossover technology investor best known for its huge Snowflake position, the 'Overtime' open letter urging Meta to get fit in 2022, and his Invest America campaign to seed investment accounts for American children.

Altimeter's 13F is a focused bet sheet on the cloud and AI economy — hyperscalers, data infrastructure, and travel-tech survivors from Gerstner's Expedia-alumni roots.

Portfolio data below is from Altimeter Capital Management, LP’s SEC 13F filings. View the full filer page →

Reported Value
$5.7B
Q1 2026
Positions
13
Filings on Record
33
2019–present window
Filed
May 15, 2026
original filing

Summary

Altimeter Capital Management, LP reported $5.7B in U.S.-listed holdings across 13 positions for Q1 2026.

The portfolio is heavily concentrated: NVDA alone accounts for 28.6% of reported value.

Compared with Q4 2025, the fund opened 2 new positions and exited 7.

Portfolio Metrics

Turnover
+12.6%
vs prior filed quarter
Top-10 Concentration
+98.5%
share of reported value
Largest Position
+28.6%
Nvidia Corporation
New / Exited
2 / 7
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $2.7BQ4 ’18Q1 ’19: $2.9BQ2 ’19: $3.7BQ3 ’19: $4.1BQ4 ’19: $4.5BQ4 ’19Q1 ’20: $3.3BQ2 ’20: $4.7BQ3 ’20: $5.9BQ4 ’20: $10.8BQ4 ’20Q1 ’21: $14.0BQ2 ’21: $13.3BQ3 ’21: $12.5BQ4 ’21: $10.5BQ4 ’21Q1 ’22: $6.9BQ2 ’22: $4.4BQ3 ’22: $4.7BQ2 ’23: $5.5BQ2 ’23Q3 ’23: $5.3BQ4 ’23: $6.0BQ1 ’24: $6.5BQ2 ’24: $6.7BQ2 ’24Q3 ’24: $6.8BQ4 ’24: $5.5BQ1 ’25: $5.0BQ2 ’25: $6.9BQ2 ’25Q3 ’25: $7.6BQ4 ’25: $6.7BQ1 ’26: $5.7Bfilingsflow.com

Portfolio Composition

By security type
Common Stock: 87.3%ADR: 12.7%Other: 0.0%
  • Common Stock · 87.3% · $5.0B
  • ADR · 12.7% · $721M
  • Other · 0.0% · $262,650

Quarter-over-Quarter Changes full breakdown →

vs Q4 2025 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
ARMARM HOLDINGS PLCNEW+1.72M1.72M+$260M$260M
AXONAXON ENTERPRISE INCNEW+149.0K149.0K+$63M$63M
AVGOBROADCOM INCADDED+35.0K67.1K+$10M$21M
CPNGCOUPANG INCSOLD OUT−15.68M0−$370M$0
8QRCONFLUENT INCSOLD OUT−6.93M0−$210M$0
GOOGLALPHABET INCSOLD OUT−519.3K0−$163M$0
ZZILLOW GROUP INCSOLD OUT−2.19M0−$149M$0
MLB1MERCADOLIBRE INCSOLD OUT−68.5K0−$138M$0

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q1 2026

13 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1NVDANVIDIA CORPORATIONhistory →COM28.57%$1.6B9.34M
2METAMETA PLATFORMS INChistory →CL A19.61%$1.1B1.95M
3UBERUBER TECHNOLOGIES INChistory →COM10.06%$573M7.97M
4TSMTAIWAN SEMICONDUCTOR MFG LTDhistory →SPONSORED ADS8.10%$462M1.37M
5MSFTMICROSOFT CORPhistory →COM7.69%$438M1.18M
6AMZNAMAZON COM INChistory →COM7.64%$435M2.09M
7CRWVCOREWEAVE INChistory →COM CL A6.12%$349M4.50M
8SNOWSNOWFLAKE INChistory →COM SHS5.10%$291M1.93M
9ARMARM HOLDINGS PLChistory →SPONSORED ADS4.55%$260M1.72M
10AXONAXON ENTERPRISE INChistory →COM1.11%$63M149.0K
11HOODROBINHOOD MKTS INChistory →COM CL A1.09%$62M899.7K
12AVGOBROADCOM INChistory →COM0.36%$21M67.1K
13GRAB HOLDINGS LIMITEDW EXP 12/1/2020.00%$262,6503.50M

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$5.7B13May 15, 202613F-HRchanges · EDGAR ↗
Q4 2025$6.7B18Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$7.6B23Nov 14, 202513F-HRchanges · EDGAR ↗
Q2 2025$6.9B18Aug 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$5.0B22May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$5.5B24Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$6.8B23Nov 14, 202413F-HRchanges · EDGAR ↗
Q2 2024$6.7B20Aug 14, 202413F-HRchanges · EDGAR ↗
Q1 2024$6.5B17May 15, 202413F-HRchanges · EDGAR ↗
Q4 2023$6.0B11Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$5.3B11Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$5.5B11Aug 14, 202313F-HRchanges · EDGAR ↗
Q1 2023Under review11May 16, 202313F-HRchanges · EDGAR ↗
Q4 2022Under review11Feb 14, 202313F-HRchanges · EDGAR ↗
Q3 2022$4.7B17Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$4.4B16Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$6.9B22May 17, 2022RESTATEMENTchanges · EDGAR ↗
Q4 2021$10.5B25Feb 14, 202213F-HRchanges · EDGAR ↗
Q3 2021$12.5B31Nov 15, 202113F-HRchanges · EDGAR ↗
Q2 2021$13.3B33Aug 16, 202113F-HRchanges · EDGAR ↗
Q1 2021$14.0B32May 17, 202113F-HRchanges · EDGAR ↗
Q4 2020$10.8B29Feb 16, 202113F-HRchanges · EDGAR ↗
Q3 2020$5.9B27Nov 16, 202013F-HRchanges · EDGAR ↗
Q2 2020$4.7B23Aug 14, 202013F-HRchanges · EDGAR ↗
Q1 2020$3.3B25May 15, 202013F-HRchanges · EDGAR ↗
Q4 2019$4.5B27Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$4.1B30Nov 14, 201913F-HRchanges · EDGAR ↗
Q2 2019$3.7B27Aug 14, 201913F-HRchanges · EDGAR ↗
Q1 2019$2.9B26May 15, 201913F-HRchanges · EDGAR ↗
Q4 2018$2.7B26Feb 15, 2019RESTATEMENTchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.