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CIK: 0001599731
Total reported value
$1.5B
$1.5B
81 檔
23.1%
As reported in its official Q3 2025 Form 13F filing, Atika Capital Management LLC's tracked investment portfolio stood at $1.5B with 81 total positions.
In Q3 2025, Atika Capital Management LLC displayed an active expansion posture, initiating 38 new positions and adding to 25 existing holdings, outstripping position reductions.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | VRT | Vertiv Holdings Co-a | Stock-Industrials | 7.85% | -11.61% | — | |
| 2 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 7.40% | +2.74% | -0.43% | |
| 3 | MSFT | Microsoft CORP | Stock-Tech | 7.25% | — | +4.43% | |
| 4 | SPOT | Spotify Technology S.A. | Stock-Comm Services | 3.72% | — | +0.56% | |
| 5 | MLM | Martin Marietta Materials | Stock-Materials | 3.66% | — | -5.58% | |
| 6 | BWXT | Bwx Technologies Inc | Stock-Industrials | 3.40% | -1.97% | +3.33% | |
| 7 | ANET | Arista Networks Inc | Stock-Tech | 2.86% | — | -11.62% | |
| 8 | LLY | Eli Lilly & Co | Stock-Healthcare | 2.66% | -2.71% | — | |
| 9 | CEG | Constellation Energy | Stock-Utilities | 2.65% | — | — | |
| 10 | TLN | Talen Energy CORP | Stock-Utilities | 2.50% | -0.93% | EXIT | |
| 11 | STX | Seagate Technology Holdings plc | Stock-Tech | 2.37% | +1.77% | — | |
| 12 | GEV | GE Vernova Inc | Stock-Industrials | 2.21% | +3.86% | NEW | |
| 13 | META | Meta Platforms Inc-class A | Stock-Comm Services | 2.21% | -0.90% | EXIT | |
| 14 | ISRG | Intuitive Surgical Inc | Stock-Healthcare | 2.17% | -2.65% | -3.97% | |
| 15 | VST | Vistra CORP | Stock-Utilities | 2.04% | — | -0.81% | |
| 16 | ✓ | Cyberark Software LTD. Cmn | Stock-Other | 1.84% | — | +15.44% | |
| 17 | NFLX | Netflix Inc | Stock-Comm Services | 1.83% | -1.91% | +50.00% | |
| 18 | NET | Cloudflare Inc - Class A | Stock-Tech | 1.78% | -2.11% | EXIT | |
| 19 | NBIS | Nebius Group N.V. | Stock-Other | 1.71% | — | +158.82% | |
| 20 | RBLX | Roblox CORP -class A | Stock-Comm Services | 1.67% | — | +30.73% | |
| 21 | VRNA | Verona Pharma PLC - Adr | Stock-Other | 1.59% | — | -17.18% | |
| 22 | MELI | Mercadolibre Inc | Stock-Consumer Disc | 1.57% | -0.73% | -20.70% | |
| 23 | HOOD | Robinhood Markets Inc - A | Stock-Financials | 1.47% | — | -44.52% | |
| 24 | GKOS | Glaukos CORP | Stock-Healthcare | 1.47% | — | -33.52% | |
| 25 | DASH | Doordash Inc - A | Stock-Consumer Disc | 1.46% | — | -4.82% | |
| 26 | CDTX | Cidara Therapeutics Inc | Stock-Other | 1.28% | — | — | |
| 27 | INSP | Inspire Medical Systems Inc | Stock-Healthcare | 1.18% | — | +15.87% | |
| 28 | NVDA | Nvidia CORP | Stock-Tech | 1.17% | — | +25.68% | |
| 29 | TSLA | Tesla Inc | Stock-Consumer Disc | 1.17% | — | — | |
| 30 | INSM | Insmed Inc | Stock-Healthcare | 1.16% | — | — | |
| 31 | ADBE | Adobe Inc | Stock-Tech | 1.16% | — | +73.55% | |
| 32 | ROKU | Roku Inc | Stock-Comm Services | 1.13% | — | +198.21% | |
| 33 | APPF | Appfolio Inc - A | Stock-Tech | 1.04% | -0.68% | — | |
| 34 | SHOP | Shopify Inc - Class A | Stock-Tech | 0.99% | — | +13.11% | |
| 35 | CIEN | Ciena CORP | Stock-Tech | 0.99% | -1.10% | — | |
| 36 | ALNY | Alnylam Pharmaceuticals Inc | Stock-Healthcare | 0.86% | — | -19.83% | |
| 37 | GE | General Electric | Stock-Industrials | 0.84% | -0.69% | EXIT | |
| 38 | EYE | National Vision Holdings Inc | Stock-Other | 0.75% | — | -27.33% | |
| 39 | ASML | ASML Holding N.V. | Stock-Tech | 0.72% | — | — | |
| 40 | MTZ | Mastec Inc | Stock-Industrials | 0.71% | -1.95% | -19.72% | |
| 41 | GH | Guardant Health Inc | Stock-Healthcare | 0.70% | +0.46% | +49.10% | |
| 42 | NTRA | Natera Inc | Stock-Healthcare | 0.63% | — | — | |
| 43 | DHI | Dr Horton Inc | Stock-Consumer Disc | 0.63% | — | — | |
| 44 | DUOL | Duolingo | Stock-Tech | 0.61% | — | +5.21% | |
| 45 | FIVE | Five Below | Stock-Consumer Disc | 0.60% | -0.95% | — | |
| 46 | MLYS | Mineralys Therapeutics Inc | Stock-Other | 0.56% | — | — | |
| 47 | FERG | Ferguson Enterprises Inc | Stock-Industrials | 0.56% | -0.62% | — | |
| 48 | AXSM | Axsome Therapeutics Inc | Stock-Healthcare | 0.50% | +1.01% | NEW | |
| 49 | ABVX | Abivax Sa-adr | Stock-Other | 0.50% | -0.26% | — | |
| 50 | ECHO | Echostar Corp-a | Stock-Comm Services | 0.47% | -0.70% | +155.45% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | VRT | Vertiv Holdings Co-a | +2.5% | — | Add |
| 2 | ECHO | Echostar Corp-a | +2.1% | +155.45% | Trim |
| 3 | BWXT | Bwx Technologies Inc | +1.7% | +3.33% | Add |
| 4 | CEG | Constellation Energy | +1.3% | — | Add |
| 5 | MSFT | Microsoft CORP | +1.2% | +4.43% | Add |
| 6 | NET | Cloudflare Inc - Class A | +1.1% | +42.45% | Add |
| 7 | META | Meta Platforms Inc-class A | +0.6% | -6.58% | Add |
| 8 | HOOD | Robinhood Markets Inc - A | +0.6% | -44.52% | Trim |
| 9 | GEV | GE Vernova Inc | +0.5% | -0.26% | Add |
| 10 | ANET | Arista Networks Inc | +0.4% | -11.62% | Add |
| 11 | ROKU | Roku Inc | +0.4% | +198.21% | Add |
| 12 | TLN | Talen Energy CORP | +0.3% | +15.89% | Trim |
| 13 | NVDA | Nvidia CORP | +0.3% | +25.68% | Add |
| 14 | SHOP | Shopify Inc - Class A | +0.3% | +13.11% | Add |
| 15 | GH | Guardant Health Inc | +0.2% | +49.10% | Add |
| 16 | INSM | Insmed Inc | +0.1% | — | Trim |
| 17 | VST | Vistra CORP | 0% | -0.81% | Add |
| 18 | TSLA | Tesla Inc | 0% | — | Add |
| 19 | XENE | Xenon Pharmaceuticals Inc | 0% | — | Add |
| 20 | ADBE | Adobe Inc | -0.1% | +73.55% | Add |
| 21 | FERG | Ferguson Enterprises Inc | -0.1% | — | Unchanged |
| 22 | MLM | Martin Marietta Materials | -0.3% | -5.58% | Add |
| 23 | ✓ | Cyberark Software LTD. Cmn | -0.3% | +15.44% | Add |
| 24 | TBBB | BBB Foods Inc. | -0.3% | -1.57% | Trim |
| 25 | VRNA | Verona Pharma PLC - Adr | -0.4% | -17.18% | Trim |
| 26 | NFLX | Netflix Inc | -0.4% | +50.00% | Add |
| 27 | APPF | Appfolio Inc - A | -0.4% | — | Unchanged |
| 28 | ASND | Ascendis Pharma A/S | -0.4% | +35.12% | Trim |
| 29 | DUOL | Duolingo | -0.4% | +5.21% | Trim |
| 30 | GE | General Electric | -0.6% | +4.96% | Trim |
| 31 | TEVA | Teva Pharmaceutical-sp Adr | -0.6% | — | Trim |
| 32 | SPNT | SiriusPoint Ltd. | -0.6% | -3.45% | Trim |
| 33 | MELI | Mercadolibre Inc | -0.7% | -20.70% | Add |
| 34 | AXSM | Axsome Therapeutics Inc | -0.7% | +6.24% | Trim |
| 35 | DASH | Doordash Inc - A | -0.8% | -4.82% | Trim |
| 36 | NTRA | Natera Inc | -0.8% | — | Trim |
| 37 | SPOT | Spotify Technology S.A. | -1.3% | +0.56% | Add |
| 38 | LLY | Eli Lilly & Co | -1.3% | — | Add |
| 39 | AMZN | Amazon.com Inc | -1.4% | -0.43% | Add |
| 40 | RXST | Rxsight Inc | -1.7% | — | Trim |
| 41 | ISRG | Intuitive Surgical Inc | -1.8% | -3.97% | Add |
| 42 | GKOS | Glaukos CORP | -2.3% | -33.52% | Trim |
| 43 | INSP | Inspire Medical Systems Inc | -2.5% | +15.87% | Add |
| 44 | STX | Seagate Technology Holdings plc | — | NEW | New buy |
| 45 | IWM | Ishares Russell 2000 ETF | — | EXIT | Sold out |
| 46 | NBIS | Nebius Group N.V. | — | NEW | New buy |
| 47 | RBLX | Roblox CORP -class A | — | NEW | New buy |
| 48 | CDTX | Cidara Therapeutics Inc | — | NEW | New buy |
| 49 | SLNOEUR | Soleno Therapeutics Inc | — | EXIT | Sold out |
| 50 | LNTH | Lantheus Holdings Inc | — | EXIT | Sold out |
According to official SEC Form 13F filings, Atika Capital Management LLC reported a total U.S. public equity portfolio value of $1.5B across 81 disclosed positions in Q3 2025.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including VRT, AMZN, MSFT) accounted for 23.1% of total reported equity market value during Q3 2025.
Top New Position Initiated
STX
市值: $33.4M
Top Position Liquidated / Trimmed
IWM
前期市值: $29.9M
During Q3 2025, Atika Capital Management LLC's top holdings by market value included VRT (7.8%)、AMZN (7.4%)、MSFT (7.3%). The largest single position, VRT, represented 7.8% of total portfolio value.
In Q3 2025, Atika Capital Management LLC made 95 total portfolio adjustments, initiating 38 new buys, adding to 25 positions, trimming 16 holdings, and fully liquidating 16 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
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