Alta Park Capital, LP 13F: Quarter-over-Quarter Portfolio Changes
Alta Park Capital, LP reported a disclosed portfolio value of approximately $621.9 million in its latest SEC Form 13F-HR filing for Q1 2026, down 25.2% quarter on quarter. Over the quarter, the fund initiated 4 new positions, bought more shares in 7 holdings, trimmed 12 holdings, and exited 14 positions.
Alta Park Capital, LP's top buy was a new stake in Apple (AAPL) , equal to 6.0% of the disclosed portfolio. Its top sell was Applovin CORP (APP) . The fund exited the position completely after it had accounted for 4.2% of the previous portfolio.
New PositionsQ1 2026
Securities disclosed for the first time in Q1 2026 that were not present in the prior 13F-HR filing.
| Company | Ticker | Initial Portfolio Weight | History |
|---|---|---|---|
| APPLE | AAPL | 6.0% | History → |
| LUMENTUM HLDGS INC | LITE | 3.6% | Holders → |
| COHERENT CORP | COHR | 3.6% | Holders → |
| LIVE NATION ENTERTAINMENT IN | LYV | 2.9% | Holders → |
Top BuysQ1 2026
The fund's top buys among existing positions in Q1 2026. Ranked by portfolio-weight impact, with the percentage of additional shares shown separately.
| Company | Ticker | Portfolio Weight Change | More Shares | History |
|---|---|---|---|---|
| MIRION TECHNOLOGIES INC | MIR | +1.3% | +73.7% | Holders → |
| NETFLIX INC. | NFLX | +4.0% | +50.9% | History → |
| ASML HLDG NV | ASML | +2.1% | +16.2% | History → |
| PALO ALTO NETWORKS INC | PANW | +1.0% | +12.2% | Holders → |
| BROADCOM | AVGO | +0.8% | +11.1% | Holders → |
| MERCADOLIBRE INC | MELI | +0.5% | +11.0% | Holders → |
| SENTINELONE INC | S | +0.7% | +10.4% | Holders → |
Top SellsQ1 2026
Showing the top 10 sells among 12 existing positions where the fund sold shares in Q1 2026. Ranked by portfolio-weight impact. Full exits are listed separately.
| Company | Ticker | Portfolio Weight Change | Shares Sold | History |
|---|---|---|---|---|
| SANDISK CORP | SNDK | -0.3% | 73.7% | History → |
| WESTERN DIGITAL CORP | WDC | -2.7% | 67.8% | History → |
| TERADYNE INC | TER | 0.7% | 42.7% | History → |
| META PLATFORMS INC | META | -0.5% | 24.9% | Holders → |
| NVIDIA CORPORATION COM | NVDA | 0.0% | 19.2% | History → |
| APPLIED MATLS INC | AMAT | 1.8% | 17.7% | History → |
| ONTO INNOVATION INC | ONTO | 1.0% | 17.0% | Holders → |
| TWILIO INC | TWLO | -0.0% | 16.0% | Holders → |
| NU HOLDINGS LTD | NU | 0.3% | 8.6% | History → |
| TOWER SEMICONDUCTOR LTD | TSEM | 1.9% | 8.5% | History → |
Full ExitsQ1 2026
Positions present in the prior 13F-HR filing that no longer appear in Q1 2026.
| Company | Ticker | Last-Reported Portfolio Weight |
|---|---|---|
| APPLOVIN CORP | APP | 4.2% |
| SEMTECH CORP | SMTC | 2.5% |
| SHOPIFY INC | SHOP | 2.4% |
| CARVANA CO | CVNA | 2.3% |
| RUBRIK INC | RBRK | 2.3% |
| ROCKET COS INC | RKT | 2.3% |
| DOORDASH INC | DASH | 2.2% |
| MICRON TECHNOLOGY INC | MU | 1.9% |
| UNITY SOFTWARE INC | U | 1.7% |
| MONGODB INC | MDB | 1.2% |
| CREDO TECHNOLOGY GROUP HOLDI | CRDO | 1.2% |
| ALPHABET CL A | GOOGL | 1.2% |
| TAKE-TWO INTERACTIVE SOFTWAR | TTWO | 1.2% |
| AXON ENTERPRISE INC | AXON | 1.1% |
Net Portfolio Value ChangeQ1 2026
- $0.8BPrior quarter
- $0.6BCurrent quarter
- $-0.2BNet delta
- -25.2%% change
Methodology & FAQ
How Alta Park Capital, LP Quarterly Changes Are Computed
All deltas are sourced from sequential SEC Form 13F-HR filings for Alta Park Capital, LP: each row joins the most recent filing against the immediately preceding quarterly filing for the same fund. Share-count changes reflect reported trading activity, while portfolio weights can also move because of market price changes. Portfolio weights are normalized to exclude listed options for comparability. A complete description — including how confidential treatment filings are handled — is documented in the Methodology.
What stocks did Alta Park Capital, LP buy in Q1 2026?
In Q1 2026, Alta Park Capital, LP initiated 4 new positions (APPLE (AAPL), LUMENTUM HLDGS INC (LITE), COHERENT CORP (COHR), LIVE NATION ENTERTAINMENT IN (LYV)); bought more shares of MIRION TECHNOLOGIES INC (MIR), NETFLIX INC. (NFLX), ASML HLDG NV (ASML), PALO ALTO NETWORKS INC (PANW), BROADCOM (AVGO) — the largest 5 of 7 adds.
What stocks did Alta Park Capital, LP sell in Q1 2026?
In Q1 2026, Alta Park Capital, LP fully sold 14 positions (APPLOVIN CORP (APP), SEMTECH CORP (SMTC), SHOPIFY INC (SHOP), CARVANA CO (CVNA), RUBRIK INC (RBRK), ROCKET COS INC (RKT), DOORDASH INC (DASH), MICRON TECHNOLOGY INC (MU), UNITY SOFTWARE INC (U), MONGODB INC (MDB), CREDO TECHNOLOGY GROUP HOLDI (CRDO), ALPHABET CL A (GOOGL), TAKE-TWO INTERACTIVE SOFTWAR (TTWO), AXON ENTERPRISE INC (AXON)); reduced holdings in SANDISK CORP (SNDK), WESTERN DIGITAL CORP (WDC), TERADYNE INC (TER), META PLATFORMS INC (META), NVIDIA CORPORATION COM (NVDA) — the largest 5 of 12 reductions.
Which positions did Alta Park Capital, LP initiate in Q1 2026?
Alta Park Capital, LP established 4 new positions in Q1 2026: APPLE (AAPL, 6.0%), LUMENTUM HLDGS INC (LITE, 3.6%), COHERENT CORP (COHR, 3.6%), LIVE NATION ENTERTAINMENT IN (LYV, 2.9%).
Which existing positions saw the largest allocation increases for Alta Park Capital, LP in Q1 2026?
Of 7 existing positions with share-count increases in Q1 2026, the largest were: MIRION TECHNOLOGIES INC (MIR, +1.3% weight, +73.7% shares), NETFLIX INC. (NFLX, +4.0% weight, +50.9% shares), ASML HLDG NV (ASML, +2.1% weight, +16.2% shares), PALO ALTO NETWORKS INC (PANW, +1.0% weight, +12.2% shares), BROADCOM (AVGO, +0.8% weight, +11.1% shares), MERCADOLIBRE INC (MELI, +0.5% weight, +11.0% shares), SENTINELONE INC (S, +0.7% weight, +10.4% shares).
Which positions did Alta Park Capital, LP fully exit in Q1 2026?
Alta Park Capital, LP fully exited 14 positions in Q1 2026: APPLOVIN CORP (APP, last-reported weight 4.2%), SEMTECH CORP (SMTC, last-reported weight 2.5%), SHOPIFY INC (SHOP, last-reported weight 2.4%), CARVANA CO (CVNA, last-reported weight 2.3%), RUBRIK INC (RBRK, last-reported weight 2.3%), ROCKET COS INC (RKT, last-reported weight 2.3%), DOORDASH INC (DASH, last-reported weight 2.2%), MICRON TECHNOLOGY INC (MU, last-reported weight 1.9%), UNITY SOFTWARE INC (U, last-reported weight 1.7%), MONGODB INC (MDB, last-reported weight 1.2%), CREDO TECHNOLOGY GROUP HOLDI (CRDO, last-reported weight 1.2%), ALPHABET CL A (GOOGL, last-reported weight 1.2%), TAKE-TWO INTERACTIVE SOFTWAR (TTWO, last-reported weight 1.2%), AXON ENTERPRISE INC (AXON, last-reported weight 1.1%).
Which existing positions saw the largest allocation reductions for Alta Park Capital, LP in Q1 2026?
Of 12 existing positions with share-count reductions in Q1 2026, the largest were: SANDISK CORP (SNDK, -0.3% weight, -73.7% shares), WESTERN DIGITAL CORP (WDC, -2.7% weight, -67.8% shares), TERADYNE INC (TER, 0.7% weight, -42.7% shares), META PLATFORMS INC (META, -0.5% weight, -24.9% shares), NVIDIA CORPORATION COM (NVDA, 0.0% weight, -19.2% shares), APPLIED MATLS INC (AMAT, 1.8% weight, -17.7% shares), ONTO INNOVATION INC (ONTO, 1.0% weight, -17.0% shares), TWILIO INC (TWLO, -0.0% weight, -16.0% shares), NU HOLDINGS LTD (NU, 0.3% weight, -8.6% shares), TOWER SEMICONDUCTOR LTD (TSEM, 1.9% weight, -8.5% shares).
Do quarter-over-quarter 13F allocation changes constitute explicit trading signals?
No. Quarter-over-quarter changes reflect a combination of active trading and market price movement. A weight increase can result from price appreciation alone, without the manager adding shares. Share-count delta is the cleaner indicator of explicit trading activity. All deltas on this page are sourced from sequential SEC Form 13F-HR filings.