Altimeter Capital Management, LP
Brad Gerstner · Menlo Park, CA · Founded 2008
Altimeter Capital Management is a technology-focused investment firm founded in 2008 by Brad Gerstner, who runs it as CEO and chief investment officer. It invests across public and private markets — a concentrated public book alongside venture-stage positions — with a long focus on software, internet and, more recently, AI infrastructure.
Gerstner started Altimeter in the depths of the financial crisis with under $3 million from friends and family; the firm now manages on the order of $20 billion. Before Altimeter he was a founding principal of General Catalyst and a portfolio manager at PAR Capital. He led Snowflake's Series C and held a large stake through its roughly $70 billion 2020 IPO, and as a top-15 Meta holder wrote a widely-read October 2022 open letter urging the company to cut costs and rein in metaverse spending.
He has become one of tech's more public investors through the BG2 podcast (previously co-hosted with Bill Gurley) and regular appearances on CNBC and Bloomberg. The tables below cache Altimeter's four most recent 13F filings; positions in companies R40 tracks are linked to their pages.
History
Brad Gerstner launches the firm during the financial crisis with under $3M raised from friends and family.
Altimeter's Series C lead becomes a signature win as Snowflake goes public near a $70B valuation, one of the largest-ever software IPOs.
Altimeter Growth Corp, Gerstner's blank-check vehicle, merges with Southeast Asian super-app Grab in one of the era's largest SPAC deals.
As a top-15 holder, Gerstner publicly urges Meta to cut headcount and rein in metaverse spending in his 'Time to Get Fit' letter.
2026 Q2 holdings
| # | Company | Class | Value | Shares | % Port. | vs prior |
|---|---|---|---|---|---|---|
| 1 | NVDANVIDIA Corporation★ | COM | $1.88B | 9.4M | 19.2% | ADD |
| 2 | Cerebras Systems Inc | COM CL A | $1.60B | 7.2M | 16.2% | NEW |
| 3 | METAMeta Platforms, Inc.★ | CL A | $763.3M | 1.4M | 7.8% | TRIM |
| 4 | TSMTaiwan Semiconductor Manufacturing Company Limited★ | SPONSORED ADS | $682.6M | 1.4M | 6.9% | ADD |
| 5 | CRWVCoreWeave, Inc.★ | COM CL A | $604.6M | 6.1M | 6.2% | ADD |
| 6 | Arm Holdings Plc | SPONSORED ADS | $582.2M | 1.6M | 5.9% | TRIM |
| 7 | AMZNAmazon.com, Inc.★ | COM | $578.1M | 2.4M | 5.9% | ADD |
| 8 | UBERUber Technologies, Inc.★ | COM | $532.0M | 7.4M | 5.4% | TRIM |
| 9 | SNOWSnowflake Inc.★ | COM SHS | $490.2M | 1.9M | 5.0% | HOLD |
| 10 | MSFTMicrosoft Corporation★ | COM | $473.0M | 1.3M | 4.8% | ADD |
| 11 | QCOMQUALCOMM Incorporated★ | COM | $347.9M | 1.9M | 3.5% | NEW |
| 12 | SPCXSpaceX★ | CLASS A COM STK | $303.5M | 1.8M | 3.1% | NEW |
| 13 | MUMicron Technology, Inc.★ | COM | $241.8M | 210K | 2.5% | NEW |
| 14 | Applied Matls Inc | COM | $189.4M | 262K | 1.9% | NEW |
| 15 | Kla Corp | COM NEW | $174.5M | 578K | 1.8% | NEW |
| 16 | Lam Research Corp | COM NEW | $170.8M | 394K | 1.7% | NEW |
| 17 | HOODRobinhood Markets Inc.★ | COM CL A | $90.2M | 900K | 0.9% | HOLD |
| 18 | GOOGLAlphabet Inc.★ | CAP STK CL A | $62.6M | 175K | 0.6% | NEW |
| 19 | Synopsys Inc | COM | $62.6M | 140K | 0.6% | NEW |
| 20 | GRABGrab Holdings Limited★ | W EXP 12/1/202 | $151K | 3.5M | 0.0% | NEW |
Notable 2026 Q2 moves
New positions
- Cerebras Systems Inc $1.60B
- QCOM QUALCOMM Incorporated $347.9M
- SPCX SpaceX $303.5M
- MU Micron Technology, Inc. $241.8M
- Applied Matls Inc $189.4M
- Kla Corp $174.5M
- Lam Research Corp $170.8M
- GOOGL Alphabet Inc. $62.6M
- Synopsys Inc $62.6M
- GRAB Grab Holdings Limited $151K
Exited
- Axon Enterprise Inc was $63.3M
- AVGO Broadcom Inc. was $20.8M
- GRAB Grab Holdings Limited was $263K
Position history in tracked names
Quarter-end value of each holding that has a page on R40, most recent first.
| Stock | 2026 Q2 | 2026 Q1 | 2025 Q4 | 2025 Q3 |
|---|---|---|---|---|
| NVDANvidia Corporation | $1.88B | $1.63B | $1.51B | $1.43B |
| METAMeta Platforms Inc | $763.3M | $1.12B | $1.22B | $1.37B |
| TSMTaiwan Semiconductor Mfg Ltd | $682.6M | $461.5M | $370.5M | $298.5M |
| CRWVCoreweave Inc | $604.6M | $348.5M | $230.1M | — |
| AMZNAmazon Com Inc | $578.1M | $435.2M | $511.4M | $475.9M |
| UBERUber Technologies Inc | $532.0M | $573.4M | $456.7M | $547.5M |
| SNOWSnowflake Inc | $490.2M | $290.5M | $444.8M | $547.7M |
| MSFTMicrosoft Corp | $473.0M | $438.1M | $617.8M | $601.9M |
| QCOMQualcomm Inc | $347.9M | — | — | — |
| SPCXSpace Exploration Techn Corp | $303.5M | — | — | — |
| MUMicron Technology Inc | $241.8M | — | — | — |
| HOODRobinhood Mkts Inc | $90.2M | $62.3M | $146.3M | $371.8M |
| GOOGLAlphabet Inc | $62.6M | — | $162.5M | $76.1M |
| GRABGrab Holdings Limited | $151K | $263K | $1.0M | $1.8M |
| BABAAlibaba Group Hldg Ltd | — | — | — | $173.2M |
| SHOPShopify Inc | — | — | $91.8M | — |
| BEBloom Energy Corp | — | — | $22.7M | — |
| AVGOBroadcom Inc | — | $20.8M | $11.1M | $245.7M |