Latest Atika Capital Management LLC Stock Portfolio
Atika Capital Management LLC Performance:
2025 Q3: 4.59%YTD: 11.12%2024: 16.59%
Performance for 2025 Q3 is 4.59%, and YTD is 11.12%, and 2024 is 16.59%.
About Atika Capital Management LLC and 13F Hedge Fund Stock Holdings
In it's latest 13F Holdings report, Atika Capital Management LLC reported an equity portfolio of $1.2 Billions as of 30 Sep, 2025.
The top stock holdings of Atika Capital Management LLC are VRT, AMZN, MSFT. The fund has invested 7.4% of it's portfolio in VERTIV HOLDINGS CO and 7% of portfolio in AMAZON COM INC.
The fund managers got completely rid off SOLENO THERAPEUTICS INC (SLNO), TRADEWEB MKTS INC (TW) and WOODWARD INC (WWD) stocks. They significantly reduced their stock positions in SHARKNINJA INC, KYMERA THERAPEUTICS INC (KYMR) and ROBINHOOD MKTS INC (HOOD). Atika Capital Management LLC opened new stock positions in SEAGATE TECHNOLOGY HLDNGS PL (STX), CIDARA THERAPEUTICS INC (CDTX) and TESLA INC (TSLA). The fund showed a lot of confidence in some stocks as they added substantially to ROKU INC (ROKU), ECHOSTAR CORP (SATS) and NEBIUS GROUP N.V. (YNDX).
The top stock holdings of Atika Capital Management LLC are VRT, AMZN, MSFT. The fund has invested 7.4% of it's portfolio in VERTIV HOLDINGS CO and 7% of portfolio in AMAZON COM INC.
The fund managers got completely rid off SOLENO THERAPEUTICS INC (SLNO), TRADEWEB MKTS INC (TW) and WOODWARD INC (WWD) stocks. They significantly reduced their stock positions in SHARKNINJA INC, KYMERA THERAPEUTICS INC (KYMR) and ROBINHOOD MKTS INC (HOOD). Atika Capital Management LLC opened new stock positions in SEAGATE TECHNOLOGY HLDNGS PL (STX), CIDARA THERAPEUTICS INC (CDTX) and TESLA INC (TSLA). The fund showed a lot of confidence in some stocks as they added substantially to ROKU INC (ROKU), ECHOSTAR CORP (SATS) and NEBIUS GROUP N.V. (YNDX).
Atika Capital Management LLC Annual Return Estimates Vs S&P 500
Our best estimate is that Atika Capital Management LLC made a return of 4.59% in the last quarter. In trailing 12 months, it's portfolio return was 11.72%.
New Buys
| Ticker | $ Bought |
|---|---|
| seagate technology hldngs pl | 27,877,700 |
| cidara therapeutics inc | 15,065,000 |
| tesla inc | 13,786,300 |
| insmed inc | 13,681,000 |
| ciena corp | 11,653,600 |
| asml holding n v | 8,461,110 |
| d r horton inc | 7,456,680 |
| five below inc | 7,038,850 |
New stocks bought by Atika Capital Management LLC
Additions
| Ticker | % Inc. |
|---|---|
| roku inc | 198 |
| echostar corp | 185 |
| nebius group n.v. | 158 |
| adobe inc | 73.55 |
| netflix inc | 50.00 |
| guardant health inc | 49.1 |
| cloudflare inc | 42.45 |
| ascendis pharma a/s | 35.12 |
Additions to existing portfolio by Atika Capital Management LLC
Reductions
| Ticker | % Reduced |
|---|---|
| sharkninja inc | -53.22 |
| kymera therapeutics inc | -44.54 |
| robinhood mkts inc | -44.52 |
| glaukos corp | -33.52 |
| national vision hldgs inc | -27.33 |
| mercadolibre inc | -20.7 |
| alnylam pharmaceuticals inc | -19.83 |
| mastec inc | -19.72 |
Atika Capital Management LLC reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| soleno therapeutics inc | -10,095,500 |
| tradeweb mkts inc | -7,320,000 |
| warby parker inc | -982,464 |
| hinge health inc | -2,261,480 |
| woodward inc | -7,009,570 |
| tko group holdings inc | -4,767,090 |
| novanta inc | -1,366,660 |
| taiwan semiconductor mfg ltd | -2,264,900 |
Atika Capital Management LLC got rid off the above stocks
Sector Distribution
Atika Capital Management LLC has about 22.4% of it's holdings in Technology sector.
| Sector | % |
|---|---|
| Technology | 22.4 |
| Others | 17.2 |
| Healthcare | 16.5 |
| Industrials | 13.8 |
| Consumer Cyclical | 12.7 |
| Communication Services | 8.3 |
| Utilities | 4.7 |
| Basic Materials | 3.7 |
Market Cap. Distribution
Atika Capital Management LLC has about 62.2% of it's portfolio invested in the large-cap and mega-cap stocks.
| Category | % |
|---|---|
| LARGE-CAP | 36.9 |
| MEGA-CAP | 25.3 |
| UNALLOCATED | 17.2 |
| MID-CAP | 17.1 |
| SMALL-CAP | 2.2 |
| MICRO-CAP | 1.3 |
Stocks belong to which Index?
About 50.1% of the stocks held by Atika Capital Management LLC either belong to S&P 500 or RUSSELL 2000 index.
| Index | % |
|---|---|
| Others | 49.9 |
| S&P 500 | 41 |
| RUSSELL 2000 | 9.1 |
Atika Capital Management LLC Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of Atika Capital Management LLC
Atika Capital Management LLC has 76 stocks in it's portfolio. About 41.7% of the portfolio is in top 10 stocks. INSP proved to be the most loss making stock for the portfolio. VRT was the most profitable stock for Atika Capital Management LLC last quarter.
Last Reported on: 13 Nov, 2025| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| ADBE | adobe inc | 1.10 | 38,698 | 13,650,700 | added | 73.55 | ||
| ALNY | alnylam pharmaceuticals inc | 0.81 | 22,206 | 10,125,900 | reduced | -19.83 | ||
| AMZN | amazon com inc | 7.02 | 397,049 | 87,180,000 | reduced | -0.3 | ||
| ANET | arista networks inc | 2.71 | 231,208 | 33,689,300 | reduced | -11.62 | ||
| APPF | appfolio inc | 0.99 | 44,500 | 12,266,900 | unchanged | 0.00 | ||
| AVGO | broadcom inc | 0.31 | 11,500 | 3,793,960 | new | |||
| AXSM | axsome therapeutics inc | 0.48 | 49,000 | 5,951,050 | added | 6.24 | ||
| BWXT | bwx technologies inc | 3.23 | 217,400 | 40,082,000 | added | 3.33 | ||
| CALX | calix inc | 0.44 | 89,500 | 5,492,620 | new | |||
| CDTX | cidara therapeutics inc | 1.21 | 157,320 | 15,065,000 | new | |||
| CEG | constellation energy corp | 2.51 | 94,800 | 31,195,800 | unchanged | 0.00 | ||
| CIEN | ciena corp | 0.94 | 80,000 | 11,653,600 | new | |||
| CW | curtiss wright corp | 0.44 | 10,051 | 5,457,090 | reduced | -12.6 | ||
| DASH | doordash inc | 1.38 | 63,201 | 17,190,000 | reduced | -4.82 | ||
| DHI | d r horton inc | 0.60 | 44,000 | 7,456,680 | new | |||
| DUOL | duolingo inc | 0.58 | 22,200 | 7,144,850 | added | 5.21 | ||
| EYE | national vision hldgs inc | 0.71 | 301,000 | 8,786,190 | reduced | -27.33 | ||
| FIVE | five below inc | 0.57 | 45,500 | 7,038,850 | new | |||
| FND | floor & decor hldgs inc | 0.18 | 30,000 | 2,211,000 | new | |||
| GE | ge aerospace | 0.80 | 33,000 | 9,927,060 | added | 4.96 | ||