Q2 2026 holdings · 8 filings on record
Light Street Capital Management LLC
Glen Kacher
Light Street Capital Management is a technology investment firm in Palo Alto, founded in 2010 by Glen Kacher, its chief investment officer. Kacher began as a research analyst at Tiger Management in the 1990s, then spent 1998 to 2010 at Integral Capital Partners, a crossover fund, where he became a managing director. Light Street runs a long/short fund, a long-only fund and private growth equity investments. Since 2019 it has also raised venture funds under the Beacon name, built around themes it believes are reshaping technology and media. Its 13F covers mainly US-listed stocks and leaves out short positions and private stakes.
AI-written, awaiting an editor · as of Oct 31, 2026 · not from the filings · 4 sources
- CNBC: Glen Kacher cnbc.com ↗
- Institutional Investor: Tiger grandcub Light Street fires third VC fund institutionalinvestor.com ↗
- SEC: Form ADV, Light Street Capital Management reports.adviserinfo.sec.gov ↗
- SEC: Frequently asked questions about Form 13F sec.gov ↗
Holdings
On June 30, 2026, Light Street Capital Management LLC held 27 positions in US-listed stocks worth $850.7 million. The ten largest were 67.5% of it.
Options · 1 line
Listed as filed, as the number of shares each option is on. A put can be a bet against a stock or insurance on shares the fund holds, and the filing does not say which, so options are never added into the total above.
- putPuts on 109,200 Taiwan Semiconductor Manufacturing Company Limited sharesTSM
What this filing cannot show
A 13F is a partial picture. Here is the part that is missing.
It lists long positions in US-listed stocks and options only. Not short positions, cash, ordinary bonds, anything listed only abroad, anything private, or anything bought and sold inside the quarter.
What is a 13F?
A quarterly SEC filing where large investment managers list the long positions in US-listed stocks and options they held at the end of the quarter. It is a snapshot, filed up to 45 days after that date.
Why is this list weeks old?
Managers have 45 days after each quarter ends to file, and most of the funds we track file on the last permitted day. So the newest list still describes where the fund stood weeks ago, and the market has moved since.
What does “behaves like” mean?
How many equal-sized positions would be exactly this concentrated. Ten positions of the same size behave like 10. Ten positions where one holds most of the money behave like fewer than 2. It is 1 divided by the sum of each position’s squared share of the total.
Why are two lines sometimes the same company?
Each line is one security as the manager filed it. Two share classes of one company, or a company’s stock and its convertible notes, are separate lines in the filing, and they stay separate here.
Filing history
8 filings on record.
| Quarter ended | Reported to the SEC | Positions | Source |
|---|---|---|---|
| Jun 30, 2026 | Aug 14, 2026 | 27 | Open the SEC filing ↗ |
| Mar 31, 2026 | May 15, 2026 | 23 | Open the SEC filing ↗ |
| Dec 31, 2025 | Feb 17, 2026 | 24 | Open the SEC filing ↗ |
| Sep 30, 2025 | Nov 14, 2025 | 27 | Open the SEC filing ↗ |
| Jun 30, 2025 | Aug 14, 2025 | 26 | Open the SEC filing ↗ |
| Mar 31, 2025 | May 15, 2025 | 20 | Open the SEC filing ↗ |
| Dec 31, 2024 | Feb 14, 2025 | 29 | Open the SEC filing ↗ |
| Sep 30, 2024 | Nov 14, 2024 | 21 | Open the SEC filing ↗ |
Where a manager later amended a filing, the date shown is the amendment’s. Every filing from this fund at the SEC ↗
⚠️ Public information, sourced from SEC 13F filings. A 13F shows long US-listed positions only; it cannot show shorts, cash, ordinary bonds, foreign lines, or anything bought and sold within the quarter. Values are the manager’s own quarter-end figures, filed up to 45 days later. Not financial advice.