Arkolith/Funds/Alta Park Capital, LP

Alta Park Capital, LP

CIK 1621855
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Active Filer

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.
Opened
3
new positions
Added to
8
existing
Trimmed
12
reduced
Sold out
14
exited

Concentration

Top-heavy: focused book

Top 5 holdings
32%
Top 10 holdings
56%
Top 20 holdings
91%

Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.

Direct sector allocation

14% mapped to company sectors

ETF / fund or unclassified
86%
Communication Services
11%
Consumer Discretionary
3%

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.

Biggest moves: latest quarter

Estimated $ traded · quarter-end prices, no cost basis

Bought
Trimmed / exited
  • SANDISK CORP
    −74%$92.6M
  • WESTERN DIGITAL CORP
    −68%$72.2M
  • TERADYNE INC
    −43%$20.6M
  • NVIDIA CORPORATION
    −19%$7.6M
  • META PLATFORMS INC
    −25%$7.5M
  • APPLIED MATLS INC
    −18%$7.5M

Holdings: largest first

Bars show each stock's share of the portfolio. Click a row for its position history.

24 positions
#SecurityValueShares% PortLast moveHistory
1Netflix Inc.
COM
$47.8M496.8K
7.7%
+51%
Added · +168K sh
2Nu Hldgs Ltd
ORD SHS CL A
$44.4M3.09M
7.1%
−8.6%
Reduced · −293K sh
3Apple Inc
COM
$37.3M147.0K
6.0%
New
New position
4Applied Matls Inc
COM
$34.7M101.5K
5.6%
−18%
Reduced · −22K sh
5Western Digital Corp
COM
$34.2M126.6K
5.5%
−68%
Reduced · −267K sh
6Sandisk Corp
COM
$33.1M52.1K
5.3%
−74%
Reduced · −146K sh
7Nvidia Corporation
COM
$31.8M182.6K
5.1%
−19%
Reduced · −43K sh
8Asml Hldg NV
N Y REGISTRY SHS
$27.9M21.1K
4.5%
+16%
Added · +3K sh
9Teradyne Inc
COM
$27.7M93.5K
4.5%
−43%
Reduced · −70K sh
10Tower Semiconductor Ltd
SHS NEW
$26.6M151.7K
4.3%
−8.5%
Reduced · −14K sh
11Palo Alto Networks Inc
COM
$25.7M160.6K
4.1%
+12%
Added · +17K sh
12Compass Inc
CL A
$24.8M3.39M
4.0%
−5.8%
Reduced · −209K sh
13Spotify Technology S A
SHS
$23.2M47.8K
3.7%
−7.9%
Reduced · −4K sh
14Lumentum Hldgs Inc
COM
$22.5M32.1K
3.6%
New
New position
15Meta Platforms Inc
CL A
$22.5M39.3K
3.6%
−25%
Reduced · −13K sh
16Coherent Corp
COM
$22.4M94.1K
3.6%
Added
Added · +94K sh
17Sentinelone Inc
CL A
$21.3M1.66M
3.4%
+10%
Added · +157K sh
18Onto Innovation Inc
COM
$20.9M101.7K
3.4%
−17%
Reduced · −21K sh
19Broadcom Inc
COM
$19.2M61.9K
3.1%
+11%
Added · +6K sh
20Live Nation Entertainment In
COM
$18.3M120.2K
2.9%
New
New position
21Mirion Technologies Inc
COM CL A
$18.2M977.1K
2.9%
+74%
Added · +415K sh
22Twilio Inc
CL A
$14.9M118.0K
2.4%
−16%
Reduced · −22K sh
23Mercadolibre Inc
COM
$14.8M8.6K
2.4%
+11%
Added · +845 sh
24Netskope Inc
CL A
$7.7M909.1K
1.2%
Held
Showing all 24 positions

Largest options & derivatives disclosed

Put / call positions from the 13F — totals include every disclosed option leg

Call notional (bullish)$19.8M
TypeUnderlyingNotional valueUnderlying shares
CALL · bullishMARVELL TECHNOLOGY INC$19.8M200K

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.

Filing history

As-of date vs the date the SEC received each filing

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 15, 202625$641.7M13F-HR
Q4 2025Dec 31, 2025Feb 17, 202634$831.1M13F-HR
Q3 2025Sep 30, 2025Nov 14, 202540$1.1B13F-HR
Q2 2025Jun 30, 2025Aug 14, 202532$881.1M13F-HR
Q1 2025Mar 31, 2025May 15, 202521$515.3M13F-HR
Q4 2024Dec 31, 2024Feb 14, 202534$764.2M13F-HR
Q3 2024Sep 30, 2024Nov 14, 202434$786.6M13F-HR
Q2 2024Jun 30, 2024Aug 14, 202429$802.0M13F-HR
Q1 2024Mar 31, 2024May 15, 202437$995.3M13F-HR
Q4 2023Dec 31, 2023Feb 14, 202439$972.7M13F-HR
Q3 2023Sep 30, 2023Nov 14, 202330$807.8M13F-HR
Q2 2023Jun 30, 2023Aug 14, 202334$981.1M13F-HR
Q1 2023Mar 31, 2023May 15, 202334$1.1B13F-HR
Q4 2022Dec 31, 2022Feb 14, 202327$714.4M13F-HR
Q3 2022Sep 30, 2022Nov 14, 202221$495.5M13F-HR
Q2 2022Jun 30, 2022Aug 15, 202215$441.2M13F-HR
Q1 2022Mar 31, 2022May 16, 202224$861.1M13F-HR
Q4 2021Dec 31, 2021Feb 14, 202227$1.3B13F-HR
Q3 2021Sep 30, 2021Nov 15, 202133$1.4B13F-HR
Q2 2021Jun 30, 2021Aug 16, 202131$1.2B13F-HR
Q1 2021Mar 31, 2021May 18, 202132$969.6M13F-HR/A
Q4 2020Dec 31, 2020Feb 16, 202134$1.2B13F-HR
Amended / restated
  • Q1 2021 · filed May 18, 202113F-HR/A · superseded
  • Q1 2021 · filed May 17, 202113F-HR · superseded

Data source

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.