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Altimeter Capital Management, LP — 13F Holdings & Portfolio

CIK 1541617 · latest 13F-HR filed 2026-08-14

Backtest portfolio

Altimeter Capital Management, LP manages $9.83B in 13F-reported U.S. long-equity assets across 20 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NVDA (19.16%), CBRS (16.24%), META (7.76%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 10 new positions and exited 3; 8 existing positions rose in reported value and 2 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Loading holdings…
AUM
$9.83B

Long-equity book

Holdings
20

Distinct positions

Period
2026-06-30

Filed 2026-08-14

Q/Q Activity
+10 / −3 / ↑8 / ↓2

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
NVDA19.2% · +1%CBRS16.2% · newMETA7.8% · -31%TSM6.9% · +5%CRWV6.2% · +35%ARM5.9% · -4%AMZN5.9% · +16%UBER5.4% · -8%SNOW5.0% · 0%MSFT4.8% · +7%QCOM3.5% · newSPCX3.1% · newMU2.5% · newAMAT1.9% · newKLAC1.8% · newLRCX1.7% · newHOOD0.9% · 0%GOOGL0.6% · newSNPS0.6% · newGRABW0.0% · new

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 83.3%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People
Assets Under Management
$18.75B
Discretionary
$18.75B
Employees
35
Accounts
36
Address
2550 SAND HILL ROAD
SUITE 150
MENLO PARK, CA 94025
Phone
(650) 257-8355
Website
Mailing Address
ONE INTERNATIONAL PLACE SUITE 4610, BOSTON, MA, 02110
Name Title / Status Ownership Type
ALTIMETER CAPITAL MANAGEMENT GENERAL PARTNER LLC ControlGENERAL PARTNERLess than 5%Domestic Entity
GERSTNER, BRADLEY, THOMAS ControlCEO/LIMITED PARTNER75% or moreIndividual
GERSTNER, BRADLEY, THOMAS ControlMANAGING MEMBER75% or moreIndividual
KIERNAN, JOHN, JAMES ControlCHIEF FINANCIAL OFFICER / MANAGING PARTNERLess than 5%Individual
REYNOLDS, MEGHAN, KATHLEEN ControlHEAD OF CAPITAL FORMATION / MANAGING PARTNERLess than 5%Individual
TOLVE, MATTHEW ControlGENERAL COUNSEL / MANAGING PARTNERLess than 5%Individual
HANCOCK, ANNE, FRASERCHIEF COMPLIANCE OFFICER AND DEPUTY GENERAL COUNSELLess than 5%Individual

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Top Adds (vs prior quarter)

Show all 8 →

Top Trims

Show all 2 →

New Positions

Show all 10 →

Exited Positions

Show all 3 →

Altimeter Capital Management, LP Holdings (2026-06-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 NVIDIA CORPORATION NVDA 67066G104 $1.88B 19.16% 9,413,589 SH
2 CEREBRAS SYSTEMS INC CBRS 15675D103 $1.60B 16.24% 7,225,037 SH
3 META PLATFORMS INC META 30303M102 $763.3M 7.76% 1,354,990 SH
4 TAIWAN SEMICONDUCTOR MFG LTD TSM 874039100 $682.6M 6.94% 1,429,355 SH
5 COREWEAVE INC CRWV 21873S108 $604.6M 6.15% 6,073,695 SH
6 ARM HOLDINGS PLC ARM 042068205 $582.2M 5.92% 1,641,972 SH
7 AMAZON COM INC AMZN 023135106 $578.1M 5.88% 2,425,351 SH
8 UBER TECHNOLOGIES INC UBER 90353T100 $532.0M 5.41% 7,372,440 SH
9 SNOWFLAKE INC SNOW 833445109 $490.2M 4.99% 1,926,250 SH
10 MICROSOFT CORP MSFT 594918104 $473.0M 4.81% 1,268,082 SH
11 QUALCOMM INC QCOM 747525103 $347.9M 3.54% 1,882,490 SH
12 SPACE EXPLORATION TECHN CORP SPCX 84615Q103 $303.5M 3.09% 1,776,485 SH
13 MICRON TECHNOLOGY INC MU 595112103 $241.8M 2.46% 209,520 SH
14 APPLIED MATLS INC AMAT 038222105 $189.4M 1.93% 261,950 SH
15 KLA CORP KLAC 482480100 $174.5M 1.77% 578,230 SH
16 LAM RESEARCH CORP LRCX 512807306 $170.8M 1.74% 394,080 SH
17 ROBINHOOD MKTS INC HOOD 770700102 $90.2M 0.92% 899,691 SH
18 ALPHABET INC GOOGL 02079K305 $62.6M 0.64% 175,180 SH
19 SYNOPSYS INC SNPS 871607107 $62.6M 0.64% 140,343 SH
20 GRAB HOLDINGS LIMITED GRABW G4124C117 $150.6K 0.00% 3,502,000 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $9.83B 20 0001541617-26-000008
2026-03-31 2026-05-15 $5.70B 13 0001541617-26-000006
2025-12-31 2026-02-17 $6.66B 18 0001541617-26-000002
2025-09-30 2025-11-14 $7.58B 23 0001541617-25-000013
Filer Information
Address
2550 SAND HILL RD
SUITE 150
MENLO PARK, CA 94025
Phone
(650) 257-8355
Filing Manager
Altimeter Capital Management, LP
MENLO PARK, CA
Signatory
Annie Hancock
CCO and Deputy General Counsel