In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), Alta Park Capital, LP reported 24 stock positions worth $621.9 million . Its top holding was Netflix (NFLX) at 7.7% of the portfolio, followed by Nu Holdings Ltd./Cayman Isl-A (NU, 7.1% ) and Apple (AAPL, 6.0% ). Compared with Q4 2025, it opened 4 new positions, sold out of 14, added to 7 and reduced 12. The biggest buy was a new position in Apple (AAPL) and the biggest sale an exit from AppLovin Class A (APP).
Location San Francisco, CA
CIK 0001621855
Portfolio Value $621.9M (Q1 2026) Holdings 24 stocks · $621.9M Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q4 2025 NFLX Netflix Inc. 496,791 $47.8M Add +50.9% NU Nu Holdings Ltd./Cayman Isl-A filed as NU HLDGS LTD 3,092,081 $44.4M Reduce -8.6% AAPL Apple Inc. 147,004 $37.3M New AMAT Applied Materials Inc. 101,510 $34.7M Reduce -17.7% WDC Western Digital Corp. 126,583 $34.2M Reduce -67.8% SNDK Sandisk Corp. 52,132 $33.1M Reduce -73.7% NVDA Nvidia Corp. 182,561 $31.8M Reduce -19.2% ASML ASML Holding NV-NY Reg SHS filed as ASML HLDG NV 21,098 $27.9M Add +16.2% TER Teradyne Inc. 93,536 $27.7M Reduce -42.7% TSEM Tower Semiconductor Ltd. 151,666 $26.6M Reduce -8.5% PANW Palo Alto Networks Inc. 160,554 $25.7M Add +12.2% COMP Compass Inc. Class A 3,386,522 $24.8M Reduce -5.8% SPOT Spotify Technology SA 47,758 $23.2M Reduce -7.9% LITE Lumentum Holdings Inc. 32,078 $22.5M New META Meta Platforms Inc. Class A 39,285 $22.5M Reduce -24.9% COHR Coherent Corp. 94,063 $22.4M New S Sentinelone Inc. Class A 1,655,332 $21.3M Add +10.4% ONTO Onto Innovation Inc. 101,732 $20.9M Reduce -17.0% AVGO Broadcom Inc. 61,884 $19.2M Add +11.1% LYV Live Nation Entertainment Inc. 120,218 $18.3M New MIR Mirion Technologies Inc. 977,138 $18.2M Add +73.7% TWLO Twilio Inc. Class A 118,027 $14.9M Reduce -16.0% MELI MercadoLibre Inc. 8,559 $14.8M Add +10.9% NTSK Netskope Inc. Class A 909,091 $7.7M No change
Options reported separately and not counted above: MRVL calls ($19.8M).
Portfolio Sells Q4 2025 → Q1 2026 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2025 % Of Portfolio Change To Portfolio ▲ APP AppLovin Corp. Class A Sold out 0.00% −4.23 WDC Western Digital Corp. Reduce -67.8% 5.51% −2.65 SMTC Semtech Corp. Sold out 0.00% −2.52 SHOP Shopify Inc. Class A Sold out 0.00% −2.43 CVNA Carvana Co. Sold out 0.00% −2.31 RBRK Rubrik Inc. Class A Sold out 0.00% −2.28 RKT Rocket Cos Inc. Class A Sold out 0.00% −2.26 DASH DoorDash Inc. Class A Sold out 0.00% −2.20 MU Micron Technology Inc. Sold out 0.00% −1.87 U Unity Software Inc. Sold out 0.00% −1.66 MDB Mongodb Inc. Sold out 0.00% −1.25 CRDO Credo Technology Group Holdi Sold out 0.00% −1.18 GOOGL Alphabet Inc. Class A Sold out 0.00% −1.17 TTWO Take-Two Interactive Softwre Sold out 0.00% −1.16 AXON Axon Enterprise Inc. Sold out 0.00% −1.13 COMP Compass Inc. Class A Reduce -5.8% 3.98% −0.59 META Meta Platforms Inc. Class A Reduce -24.9% 3.61% −0.54 SNDK Sandisk Corp. Reduce -73.7% 5.33% −0.33 TWLO Twilio Inc. Class A Reduce -16.0% 2.39% −0.02 NVDA Nvidia Corp. Reduce -19.2% 5.12% +0.05 SPOT Spotify Technology SA Reduce -7.9% 3.72% +0.10 NU Nu Holdings Ltd./Cayman Isl-A Reduce -8.6% 7.14% +0.33 TER Teradyne Inc. Reduce -42.7% 4.46% +0.66 ONTO Onto Innovation Inc. Reduce -17.0% 3.35% +1.03 AMAT Applied Materials Inc. Reduce -17.7% 5.58% +1.77 TSEM Tower Semiconductor Ltd. Reduce -8.5% 4.28% +1.94
Portfolio Buys Q4 2025 → Q1 2026 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2025 % Of Portfolio Change To Portfolio ▼ AAPL Apple Inc. New 6.00% +6.00 NFLX Netflix Inc. Add +50.9% 7.68% +3.97 LITE Lumentum Holdings Inc. New 3.62% +3.62 COHR Coherent Corp. New 3.60% +3.60 LYV Live Nation Entertainment Inc. New 2.95% +2.95 ASML ASML Holding NV-NY Reg SHS Add +16.2% 4.48% +2.14 MIR Mirion Technologies Inc. Add +73.7% 2.92% +1.34 PANW Palo Alto Networks Inc. Add +12.2% 4.14% +0.97 AVGO Broadcom Inc. Add +11.1% 3.08% +0.76 S Sentinelone Inc. Class A Add +10.4% 3.43% +0.72 MELI MercadoLibre Inc. Add +10.9% 2.38% +0.51
Options Activity Q4 2025 → Q1 2026 Security Type Change vs Q4 2025 Underlying Shares Value ▼ MRVL Marvell Technology Inc. call New 200,000 $19.8M
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 26 $1.1B SNDK, WDC, MRVL, AMAT, TER Q1 2026 24 $621.9M NFLX, NU, AAPL, AMAT, WDC Q4 2025 34 $831.1M WDC, NU, SNDK, NVDA, COMP Q3 2025 38 $993.3M NU, APP, WDC, META, BABA Q2 2025 31 $811.1M ORCL, NU, META, MELI, NVDA Q1 2025 21 $515.3M BABA, MELI, S, NU, NFLX Q4 2024 34 $764.2M AMZN, S, NFLX, NU, TSM Q3 2024 32 $713.6M NU, S, BABA, GTLB, MELI Q2 2024 28 $762.4M NU, AMZN, AAPL, NVDA, S Q1 2024 35 $922.9M NU, AMZN, NFLX, META, S