Alta Park Capital, LP 13F: Quarter-over-Quarter Portfolio Changes
Alta Park Capital, LP reported a disclosed portfolio value of approximately $1.1 billion in its latest SEC Form 13F-HR filing for Q2 2026, up 73.3% quarter on quarter. Over the quarter, the fund initiated 11 new positions, bought more shares in 6 holdings, trimmed 7 holdings, and exited 9 positions.
Alta Park Capital, LP's top buy was a new stake in Marvell Technology INC (MRVL) , equal to 5.9% of the disclosed portfolio. Its top sell was Apple INC (AAPL) . The fund exited the position completely after it had accounted for 6.0% of the previous portfolio.
New PositionsQ2 2026
Securities disclosed for the first time in Q2 2026 that were not present in the prior 13F-HR filing.
| Company | Ticker | Initial Portfolio Weight | History |
|---|---|---|---|
| MARVELL TECHNOLOGY INC | MRVL | 5.9% | History → |
| ADVANCED MICRO DEVICES INC | AMD | 5.3% | History → |
| TAKE-TWO INTERACTIVE SOFTWAR | TTWO | 5.2% | History → |
| SEMTECH CORP | SMTC | 3.9% | Holders → |
| GLOBALFOUNDRIES INC | GFS | 3.6% | Holders → |
| STMICROELECTRONICS NV | STM | 3.5% | Holders → |
| DPC HOLDINGS PLC | DPC | 2.7% | Holders → |
| DATADOG INC | DDOG | 2.2% | Holders → |
| SNOWFLAKE INC | SNOW | 2.2% | Holders → |
| LIBERTY MEDIA CORP DEL | FWONK | 1.2% | Holders → |
| OKTA INC | OKTA | 1.2% | Holders → |
Top BuysQ2 2026
The fund's top buys among existing positions in Q2 2026. Ranked by portfolio-weight impact, with the percentage of additional shares shown separately.
| Company | Ticker | Portfolio Weight Change | More Shares | History |
|---|---|---|---|---|
| TERADYNE INC | TER | +1.0% | +29.1% | History → |
| COMPASS INC | COMP | +0.4% | +14.2% | History → |
| NU HLDGS LTD | NU | +-2.9% | +10.0% | History → |
| SENTINELONE INC | S | +-0.6% | +8.1% | Holders → |
| WESTERN DIGITAL CORP | WDC | +2.6% | +7.6% | History → |
| META PLATFORMS INC | META | +-1.4% | +7.5% | Holders → |
Top SellsQ2 2026
The fund's top sells among positions it retained in Q2 2026. Ranked by portfolio-weight impact. Full exits are listed separately.
| Company | Ticker | Portfolio Weight Change | Shares Sold | History |
|---|---|---|---|---|
| COHERENT CORP | COHR | -2.4% | 65.0% | Holders → |
| NETFLIX INC. | NFLX | -5.6% | 37.7% | Holders → |
| APPLIED MATERIALS INC | AMAT | 0.0% | 17.7% | History → |
| NVIDIA CORPORATION | NVDA | -2.2% | 13.6% | Holders → |
| TOWER SEMICONDUCTOR LTD | TSEM | -1.1% | 13.5% | Holders → |
| ASML HLDG NV | ASML | -0.9% | 8.5% | Holders → |
| MERCADOLIBRE INC | MELI | -1.1% | 5.7% | Holders → |
Full ExitsQ2 2026
Positions present in the prior 13F-HR filing that no longer appear in Q2 2026.
| Company | Ticker | Last-Reported Portfolio Weight |
|---|---|---|
| APPLE INC | AAPL | 6.0% |
| SPOTIFY TECHNOLOGY S A | SPOT | 3.7% |
| LUMENTUM HLDGS INC | LITE | 3.6% |
| ONTO INNOVATION INC | ONTO | 3.4% |
| BROADCOM INC | AVGO | 3.1% |
| LIVE NATION ENTERTAINMENT IN | LYV | 2.9% |
| MIRION TECHNOLOGIES INC | MIR | 2.9% |
| TWILIO INC | TWLO | 2.4% |
| NETSKOPE INC | NTSK | 1.2% |
Net Portfolio Value ChangeQ2 2026
- $0.6BPrior quarter
- $1.1BCurrent quarter
- +$0.5BNet delta
- +73.3%% 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 Q2 2026?
In Q2 2026, Alta Park Capital, LP initiated 11 new positions (MARVELL TECHNOLOGY INC (MRVL), ADVANCED MICRO DEVICES INC (AMD), TAKE-TWO INTERACTIVE SOFTWAR (TTWO), SEMTECH CORP (SMTC), GLOBALFOUNDRIES INC (GFS), STMICROELECTRONICS NV (STM), DPC HOLDINGS PLC (DPC), DATADOG INC (DDOG), SNOWFLAKE INC (SNOW), LIBERTY MEDIA CORP DEL (FWONK), OKTA INC (OKTA)); bought more shares of TERADYNE INC (TER), COMPASS INC (COMP), NU HLDGS LTD (NU), SENTINELONE INC (S), WESTERN DIGITAL CORP (WDC) (the largest 5 of 6 adds).
What stocks did Alta Park Capital, LP sell in Q2 2026?
In Q2 2026, Alta Park Capital, LP fully sold 9 positions (APPLE INC (AAPL), SPOTIFY TECHNOLOGY S A (SPOT), LUMENTUM HLDGS INC (LITE), ONTO INNOVATION INC (ONTO), BROADCOM INC (AVGO), LIVE NATION ENTERTAINMENT IN (LYV), MIRION TECHNOLOGIES INC (MIR), TWILIO INC (TWLO), NETSKOPE INC (NTSK)); reduced holdings in COHERENT CORP (COHR), NETFLIX INC. (NFLX), APPLIED MATERIALS INC (AMAT), NVIDIA CORPORATION (NVDA), TOWER SEMICONDUCTOR LTD (TSEM) (the largest 5 of 7 reductions).
Which positions did Alta Park Capital, LP initiate in Q2 2026?
Alta Park Capital, LP established 11 new positions in Q2 2026: MARVELL TECHNOLOGY INC (MRVL, 5.9%), ADVANCED MICRO DEVICES INC (AMD, 5.3%), TAKE-TWO INTERACTIVE SOFTWAR (TTWO, 5.2%), SEMTECH CORP (SMTC, 3.9%), GLOBALFOUNDRIES INC (GFS, 3.6%), STMICROELECTRONICS NV (STM, 3.5%), DPC HOLDINGS PLC (DPC, 2.7%), DATADOG INC (DDOG, 2.2%), SNOWFLAKE INC (SNOW, 2.2%), LIBERTY MEDIA CORP DEL (FWONK, 1.2%), OKTA INC (OKTA, 1.2%).
Which existing positions saw the largest allocation increases for Alta Park Capital, LP in Q2 2026?
Of 6 existing positions with share-count increases in Q2 2026, the largest were: TERADYNE INC (TER, +1.0% weight, +29.1% shares), COMPASS INC (COMP, +0.4% weight, +14.2% shares), NU HLDGS LTD (NU, +-2.9% weight, +10.0% shares), SENTINELONE INC (S, +-0.6% weight, +8.1% shares), WESTERN DIGITAL CORP (WDC, +2.6% weight, +7.6% shares), META PLATFORMS INC (META, +-1.4% weight, +7.5% shares).
Which positions did Alta Park Capital, LP fully exit in Q2 2026?
Alta Park Capital, LP fully exited 9 positions in Q2 2026: APPLE INC (AAPL, last-reported weight 6.0%), SPOTIFY TECHNOLOGY S A (SPOT, last-reported weight 3.7%), LUMENTUM HLDGS INC (LITE, last-reported weight 3.6%), ONTO INNOVATION INC (ONTO, last-reported weight 3.4%), BROADCOM INC (AVGO, last-reported weight 3.1%), LIVE NATION ENTERTAINMENT IN (LYV, last-reported weight 2.9%), MIRION TECHNOLOGIES INC (MIR, last-reported weight 2.9%), TWILIO INC (TWLO, last-reported weight 2.4%), NETSKOPE INC (NTSK, last-reported weight 1.2%).
Which existing positions saw the largest allocation reductions for Alta Park Capital, LP in Q2 2026?
Of 7 existing positions with share-count reductions in Q2 2026, the largest were: COHERENT CORP (COHR, -2.4% weight, -65.0% shares), NETFLIX INC. (NFLX, -5.6% weight, -37.7% shares), APPLIED MATERIALS INC (AMAT, 0.0% weight, -17.7% shares), NVIDIA CORPORATION (NVDA, -2.2% weight, -13.6% shares), TOWER SEMICONDUCTOR LTD (TSEM, -1.1% weight, -13.5% shares), ASML HLDG NV (ASML, -0.9% weight, -8.5% shares), MERCADOLIBRE INC (MELI, -1.1% weight, -5.7% 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.