Alta Park Capital, LP holds a focused book of 24 stocks worth $621.9M as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened APPLE INC and trimmed NU HLDGS LTD. Their largest long position is NETFLIX INC at 8% of the equity book. They also disclosed $19.8M in call options (bullish), shown separately below and excluded from the equity book.
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Use Arkolith to show Alta Park Capital, LP's latest holdings, largest changes, and filing provenance.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
14% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Netflix Inc. COM | $47.8M | 496.8K | 7.7% | ▲+51% Added · +168K sh | |
| 2 | Nu Hldgs Ltd ORD SHS CL A | $44.4M | 3.09M | 7.1% | ▼−8.6% Reduced · −293K sh | |
| 3 | Apple Inc COM | $37.3M | 147.0K | 6.0% | ▲New New position | |
| 4 | Applied Matls Inc COM | $34.7M | 101.5K | 5.6% | ▼−18% Reduced · −22K sh | |
| 5 | Western Digital Corp COM | $34.2M | 126.6K | 5.5% | ▼−68% Reduced · −267K sh | |
| 6 | Sandisk Corp COM | $33.1M | 52.1K | 5.3% | ▼−74% Reduced · −146K sh | |
| 7 | Nvidia Corporation COM | $31.8M | 182.6K | 5.1% | ▼−19% Reduced · −43K sh | |
| 8 | Asml Hldg NV N Y REGISTRY SHS | $27.9M | 21.1K | 4.5% | ▲+16% Added · +3K sh | |
| 9 | Teradyne Inc COM | $27.7M | 93.5K | 4.5% | ▼−43% Reduced · −70K sh | |
| 10 | Tower Semiconductor Ltd SHS NEW | $26.6M | 151.7K | 4.3% | ▼−8.5% Reduced · −14K sh | |
| 11 | Palo Alto Networks Inc COM | $25.7M | 160.6K | 4.1% | ▲+12% Added · +17K sh | |
| 12 | Compass Inc CL A | $24.8M | 3.39M | 4.0% | ▼−5.8% Reduced · −209K sh | |
| 13 | Spotify Technology S A SHS | $23.2M | 47.8K | 3.7% | ▼−7.9% Reduced · −4K sh | |
| 14 | Lumentum Hldgs Inc COM | $22.5M | 32.1K | 3.6% | ▲New New position | |
| 15 | Meta Platforms Inc CL A | $22.5M | 39.3K | 3.6% | ▼−25% Reduced · −13K sh | |
| 16 | Coherent Corp COM | $22.4M | 94.1K | 3.6% | ▲Added Added · +94K sh | |
| 17 | Sentinelone Inc CL A | $21.3M | 1.66M | 3.4% | ▲+10% Added · +157K sh | |
| 18 | Onto Innovation Inc COM | $20.9M | 101.7K | 3.4% | ▼−17% Reduced · −21K sh | |
| 19 | Broadcom Inc COM | $19.2M | 61.9K | 3.1% | ▲+11% Added · +6K sh | |
| 20 | Live Nation Entertainment In COM | $18.3M | 120.2K | 2.9% | ▲New New position | |
| 21 | Mirion Technologies Inc COM CL A | $18.2M | 977.1K | 2.9% | ▲+74% Added · +415K sh | |
| 22 | Twilio Inc CL A | $14.9M | 118.0K | 2.4% | ▼−16% Reduced · −22K sh | |
| 23 | Mercadolibre Inc COM | $14.8M | 8.6K | 2.4% | ▲+11% Added · +845 sh | |
| 24 | Netskope Inc CL A | $7.7M | 909.1K | 1.2% | —Held |
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| CALL · bullish | MARVELL TECHNOLOGY INC | $19.8M | 200K |
13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above.
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 15, 2026 | 25 | $641.7M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 17, 2026 | 34 | $831.1M | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 14, 2025 | 40 | $1.1B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 14, 2025 | 32 | $881.1M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 15, 2025 | 21 | $515.3M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 14, 2025 | 34 | $764.2M | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 14, 2024 | 34 | $786.6M | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 14, 2024 | 29 | $802.0M | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 15, 2024 | 37 | $995.3M | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 14, 2024 | 39 | $972.7M | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 14, 2023 | 30 | $807.8M | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 14, 2023 | 34 | $981.1M | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 15, 2023 | 34 | $1.1B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 14, 2023 | 27 | $714.4M | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 14, 2022 | 21 | $495.5M | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 15, 2022 | 15 | $441.2M | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 16, 2022 | 24 | $861.1M | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 14, 2022 | 27 | $1.3B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Nov 15, 2021 | 33 | $1.4B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Aug 16, 2021 | 31 | $1.2B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | May 18, 2021 | 32 | $969.6M | 13F-HR/A |
| Q4 2020 | Dec 31, 2020 | Feb 16, 2021 | 34 | $1.2B | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.