Light Street Capital Management, LLC · Q2 2026 13F · SEC CIK 1569049
Glen Kacher portfolio
Hedge fundLight Street Capital 13F holdings. Filed 2026-08-14 for Q2 2026. Open the filing ↗ · All SEC filings ↗
- Reported 13F value
- $850.7M
- Reported positions
- 27
- Top holdings a year, 3 yrs
- +44.9%
- Assets under management
- $1.6B
Glen Kacher is the founder of Light Street Capital, which reported 27 positions worth $850.7M in its Q2 2026 13F, filed 2026-08-14. Its largest holdings were Taiwan Semiconductor Manufac (TSM, 12.7%), Advanced Micro Devices Inc (AMD, 7.5%), Astera Labs Inc (ALAB, 7.1%). A portfolio copying its top holdings returned 44.9% a year over the last 3 years, against 20.4% for the S&P 500.
Glen Kacher holdings all 27 positions.
Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.
| Stock | % of 13F value | Share change | Reported value |
|---|---|---|---|
| TSMTaiwan Semiconductor Manufac | 12.7% | -0.7% | $107.9M |
| AMDAdvanced Micro Devices Inc | 7.5% | -50.1% | $63.6M |
| ALABAstera Labs Inc | 7.1% | — | $60.7M |
| GTLBGitLab Inc | 7.0% | +66.2% | $59.4M |
| AVGOBroadcom Inc | 6.8% | +2.3% | $57.9M |
| AMKRAmkor Technology Inc Com | 6.0% | +46.6% | $51.5M |
| FROGJfrog Ltd | 5.5% | -10.5% | $46.8M |
| MKSIMks Inc. | 5.4% | -15.1% | $46.2M |
| CHYMChime Financial Inc. | 5.3% | +5.8% | $45.0M |
| CPNGCoupang Inc | 4.1% | +92.5% | $35.2M |
| TOSTToast Inc | 3.8% | — | $32.5M |
| RDDTReddit Inc | 3.7% | — | $31.7M |
| NVDANvidia Corporation Com | 3.2% | -49.8% | $27.4M |
| BEBloom Energy Corp | 3.0% | +66.3% | $25.5M |
| ASMLAsml Hldg NV | 2.6% | +0.1% | $21.8M |
| MELIMercadolibre Inc | 2.5% | — | $21.6M |
| CLBTCellebrite Di Ltd | 2.3% | +104.8% | $19.2M |
| SNOWSnowflake Inc | 2.1% | — | $17.8M |
| MDBMongodb Inc | 2.0% | — | $16.8M |
| GOOGLAlphabet Inc | 1.8% | +0.4% | $15.2M |
| AMZNAmazon Com Inc Com | 1.4% | -59.1% | $12.2M |
| DDOGDatadog Inc | 1.2% | +0.0% | $10.4M |
| DRAMRoundhill ETF Trust | 1.0% | — | $8.9M |
| NXPINxp Semiconductors N V | 0.8% | -9.8% | $6.5M |
| ADIAnalog Devices Inc | 0.5% | +0.2% | $4.2M |
| QNTQuantinuum Inc. CL A COM | 0.3% | — | $2.9M |
| GDSGds Hldgs Ltd | 0.3% | +0.2% | $2.2M |
What Glen Kacher bought and sold in Q2 2026, against Q1 2026.
New positions
- ALAB Astera Labs Inc7.1% of 13F
- TOST Toast Inc3.8% of 13F
- RDDT Reddit Inc3.7% of 13F
- MELI Mercadolibre Inc2.5% of 13F
- SNOW Snowflake Inc2.1% of 13F
- MDB Mongodb Inc2.0% of 13F
- DRAM Roundhill ETF Trust1.0% of 13F
- QNT Quantinuum Inc. CL A COM0.3% of 13F
Added to
- CLBT Cellebrite Di Ltd+104.8% shares
- CPNG Coupang Inc+92.5% shares
- BE Bloom Energy Corp+66.3% shares
- GTLB GitLab Inc+66.2% shares
- AMKR Amkor Technology Inc Com+46.6% shares
- CHYM Chime Financial Inc.+5.8% shares
Reduced
- AMZN Amazon Com Inc Com-59.1% shares
- AMD Advanced Micro Devices Inc-50.1% shares
- NVDA Nvidia Corporation Com-49.8% shares
- MKSI Mks Inc.-15.1% shares
- FROG Jfrog Ltd-10.5% shares
- NXPI Nxp Semiconductors N V-9.8% shares
Sold out
- BILL Bill Holdings Incwas 4.8%
- IOT Samsara, Inc.was 2.4%
- LITE Lumentum Hldgs Inc Comwas 0.4%
- AMPL Amplitude Incwas 0.4%
Share counts compared with the Q1 2026 13F; a split also changes share counts.
How the holdings did against the S&P 500.
- 1 year
- +45.9% /yr
- S&P 500 +20.1%
- 3 years
- +44.9% /yr
- S&P 500 +20.4%
- 5 years
- +8.1% /yr
- S&P 500 +11.6%
A portfolio of the filer's 20 largest 13F positions, weighted by value and rebuilt each quarter on the day the filing became public. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.
Reported 13F value by quarter.
| Quarter | 13F value | Positions |
|---|---|---|
| Q2 2026 | $850.7M | 27 |
| Q1 2026 | $497.3M | 23 |
| Q4 2025 | $649.8M | 24 |
| Q3 2025 | $594.5M | 27 |
| Q2 2025 | $489.5M | 26 |
| Q1 2025 | $308.7M | 20 |
| Q4 2024 | $485.8M | 29 |
| Q3 2024 | $404.1M | 21 |
| Q2 2024 | $416.7M | 25 |
| Q1 2024 | $399.3M | 21 |
| Q4 2023 | $333.9M | 21 |
| Q3 2023 | $339.8M | 23 |
Questions about Glen Kacher's portfolio
Who is Glen Kacher?
Glen Kacher is the founder of Light Street Capital, a hedge fund that files its US stock holdings with the SEC on Form 13F under the name Light Street Capital Management, LLC.
What stocks does Glen Kacher own?
Light Street Capital Management, LLC's latest 13F, for Q2 2026 and filed Aug 14, 2026, lists 27 positions worth $850.7M. The largest are Taiwan Semiconductor Manufac (TSM) at 12.7%, Advanced Micro Devices Inc (AMD) at 7.5%, Astera Labs Inc (ALAB) at 7.1%, GitLab Inc (GTLB) at 7.0% and Broadcom Inc (AVGO) at 6.8%.
What did Glen Kacher buy last quarter?
In Q2 2026, Light Street Capital Management, LLC added a new position in Astera Labs Inc (ALAB), a new position in Toast Inc (TOST), a new position in Reddit Inc (RDDT), a new position in Mercadolibre Inc (MELI), a new position in Snowflake Inc (SNOW), Cellebrite Di Ltd (CLBT) (+104.8% shares), Coupang Inc (CPNG) (+92.5% shares) and Bloom Energy Corp (BE) (+66.3% shares), compared with its Q1 2026 filing.
What did Glen Kacher sell last quarter?
In Q2 2026, Light Street Capital Management, LLC sold all of Bill Holdings Inc (BILL), sold all of Samsara, Inc. (IOT), sold all of Lumentum Hldgs Inc Com (LITE), sold all of Amplitude Inc (AMPL), Amazon Com Inc Com (AMZN) (-59.1% shares), Advanced Micro Devices Inc (AMD) (-50.1% shares) and Nvidia Corporation Com (NVDA) (-49.8% shares), compared with its Q1 2026 filing.
How has Glen Kacher's portfolio performed?
A portfolio copying Light Street Capital Management, LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +44.9% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +45.9% against +20.1%. Over 5 years: +8.1% a year against +11.6%.
When is Light Street Capital Management, LLC's next 13F filing due?
13F filings are due 45 days after each quarter ends. Light Street Capital Management, LLC's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.
How much money does Light Street Capital Management, LLC manage?
Light Street Capital Management, LLC reported $1.6B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $850.7M.