Notable Investors / Q1 2026
Glen Kacher’s Portfolio — LIGHT STREET CAPITAL MANAGEMENT, LLC
Founder & CIO, Light Street Capital
CIK 0001569049 · 505 HAMILTON AVENUE, SUITE 110, PALO ALTO, CA, 94301 · 650-234-1640
About Glen Kacher
Glen Kacher, a third-generation Tiger cub (via Integral Capital and Julian Robertson's lineage), runs Palo Alto-based Light Street Capital, a technology crossover fund investing from Silicon Valley's front porch.
Light Street's 13F is a concentrated tech book — internet platforms, software, and AI-era infrastructure — that swings with the growth cycle and is watched as a pure-play read on Valley-adjacent public investing.
Portfolio data below is from LIGHT STREET CAPITAL MANAGEMENT, LLC’s SEC 13F filings. View the full filer page →
Summary
Light Street Capital Management, LLC reported $534M in U.S.-listed holdings across 24 positions for Q1 2026.
Its largest position, TSM, represents 14.4% of the portfolio.
Compared with Q4 2025, the fund opened 5 new positions and exited 6.
Portfolio Metrics
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
Portfolio Composition
- Common Stock · 67.8% · $362M
- ADR · 21.8% · $117M
- Other · 10.4% · $55M
Quarter-over-Quarter Changes full breakdown →
vs Q4 2025 (amended baseline)
| Issuer | Move | Share Δ | Shares now | Value Δ | Value now |
|---|---|---|---|---|---|
| CPNGCOUPANG INC | NEW | +1.05M | 1.05M | +$20M | $20M |
| IOTSAMSARA INC | NEW | +384.0K | 384.0K | +$12M | $12M |
| BEBLOOM ENERGY CORP | NEW | +50.6K | 50.6K | +$7M | $7M |
| DDOGDATADOG INC | NEW | +40.0K | 40.0K | +$5M | $5M |
| LITELUMENTUM HLDGS INC | NEW | +2.9K | 2.9K | +$2M | $2M |
| MKSIMKS INC. | ADDED | +102.7K | 122.3K | +$25M | $28M |
| 8QRCONFLUENT INC | SOLD OUT | −910.0K | 0 | −$28M | $0 |
| CEGCONSTELLATION ENERGY CORP | SOLD OUT | −63.1K | 0 | −$22M | $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
Filing History
| Quarter | Reported Value | Positions | Filed | Type | Links |
|---|---|---|---|---|---|
| Q1 2026 | $534M | 24 | May 15, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q4 2025 | $650M | 24 | Feb 17, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q3 2025 | $594M | 27 | Nov 14, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q2 2025 | $490M | 26 | Aug 14, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q1 2025 | $358M | 21 | May 15, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q4 2024 | $545M | 30 | Feb 14, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q3 2024 | $423M | 22 | Nov 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q2 2024 | $435M | 26 | Aug 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q1 2024 | $413M | 22 | May 15, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q4 2023 | $334M | 21 | Feb 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q3 2023 | $340M | 23 | Nov 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q2 2023 | $377M | 21 | Aug 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q1 2023 | $410M | 23 | May 15, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q4 2022 | $268M | 26 | Feb 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q3 2022 | $393M | 30 | Nov 14, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q2 2022 | $1.2B | 32 | Aug 15, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q1 2022 | $1.5B | 39 | May 16, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q4 2021 | $1.7B | 46 | Feb 14, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q3 2021 | $2.0B | 51 | Nov 15, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q2 2021 | $2.3B | 66 | Aug 16, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q1 2021 | $1.9B | 46 | May 17, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q4 2020 | $3.4B | 44 | Feb 16, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q3 2020 | $3.2B | 45 | Nov 16, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q2 2020 | $2.4B | 40 | Aug 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q1 2020 | $1.9B | 45 | May 15, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q4 2019 | $1.7B | 28 | Feb 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q3 2019 | $1.4B | 28 | Nov 14, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q2 2019 | $1.9B | 29 | Aug 14, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q1 2019 | $1.5B | 23 | May 15, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q4 2018 | $1.3B | 27 | Feb 14, 2019 | 13F-HR | changes · 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 ↗.