Atika Capital Management LLC 13F holdings, Q4 2025
Holdings as of December 31, 2025 · filings on SEC EDGAR · latest filing →
Atika Capital Management LLC disclosed 64 US equity positions worth $718.1m in its Q4 2025 13F filing. The largest position was VRT at 14.4% of the reported book, followed by LLY and ISRG. Against the Q3 2025 filing, it opened 16 new positions, added to 13 and reduced 17 among the top 50 holdings.
What did Atika Capital Management LLC own in Q4 2025? Top 50 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q3 2025 |
|---|---|---|---|---|---|---|---|
| 1 | VRT VERTIV HOLDINGS CO | Industrials | 14.4% | $103.1m | 636,100 | 4% | added |
| 2 | LLY ELI LILLY & CO | Healthcare | 6.2% | $44.2m | 41,100 | 0% | held |
| 3 | ISRG INTUITIVE SURGICAL INC | Healthcare | 4.5% | $32.4m | 57,216 | -0% | held |
| 4 | TEVA TEVA PHARMACEUTICAL INDS | Healthcare | 3.1% | $22.4m | 717,000 | 220% | added |
| 5 | SHOP SHOPIFY INC | Technology | 2.8% | $20.0m | 124,000 | 58% | added |
| 6 | MDGL MADRIGAL PHARMACEUTICALS | Healthcare | 2.8% | $19.8m | 34,000 | – | new |
| 7 | BWXT BWX TECHNOLOGIES INC | Industrials | 2.6% | $18.8m | 108,900 | -50% | reduced |
| 8 | AMZN AMAZON COM INC | Consumer Cyclical | 2.6% | $18.5m | 80,000 | -80% | reduced |
| 9 | COGT COGENT BIOSCIENCES INC | Healthcare | 2.5% | $18.0m | 506,000 | – | new |
| 10 | NFLX NETFLIX INC | Communication Services | 2.4% | $16.9m | 180,000 | 900% | added |
| 11 | TLN TALEN ENERGY CORP | Utilities | 2.2% | $15.8m | 42,100 | -39% | reduced |
| 12 | STX SEAGATE TECHNOLOGY HLDNGS | Technology | 2.0% | $14.3m | 51,907 | -56% | reduced |
| 13 | CIEN CIENA CORP | Technology | 2.0% | $14.0m | 60,000 | -25% | reduced |
| 14 | ECHO ECHOSTAR CORP | Communication Services | 1.9% | $13.6m | 124,806 | 81% | added |
| 15 | TSLA TESLA INC | Consumer Cyclical | 1.9% | $13.5m | 30,000 | -3% | reduced |
| 16 | INSM INSMED INC | Healthcare | 1.9% | $13.4m | 77,200 | -19% | reduced |
| 17 | GOOG ALPHABET INC | Communication Services | 1.8% | $13.2m | 42,200 | – | new |
| 18 | 430 TERNS PHARMACEUTICALS INC | 1.8% | $13.0m | 321,165 | – | new | |
| 19 | MTZ MASTEC INC | Industrials | 1.7% | $12.2m | 55,998 | 42% | added |
| 20 | MELI MERCADOLIBRE INC | Consumer Cyclical | 1.7% | $12.0m | 5,947 | -25% | reduced |
| 21 | GH GUARDANT HEALTH INC | Healthcare | 1.5% | $11.0m | 108,000 | -19% | reduced |
| 22 | NET CLOUDFLARE INC | Technology | 1.5% | $10.8m | 54,900 | -44% | reduced |
| 23 | FIVE FIVE BELOW INC | Consumer Cyclical | 1.5% | $10.6m | 56,200 | 24% | added |
| 24 | DASH DOORDASH INC | Consumer Cyclical | 1.5% | $10.4m | 46,000 | -27% | reduced |
| 25 | APPF APPFOLIO INC | Technology | 1.4% | $10.4m | 44,500 | 0% | held |
| 26 | AXSM AXSOME THERAPEUTICS INC | Healthcare | 1.4% | $10.1m | 55,500 | 13% | added |
| 27 | MDB MONGODB INC | Technology | 1.3% | $9.4m | 22,326 | – | new |
| 28 | REAL THE REALREAL INC | Consumer Cyclical | 1.2% | $8.9m | 565,000 | 51% | added |
| 29 | HEI HEICO CORP NEW | Industrials | 1.2% | $8.5m | 26,300 | – | new |
| 30 | LMND LEMONADE INC | Financial Services | 1.1% | $8.1m | 113,917 | 65% | added |
| 31 | QXO QXO INC | Industrials | 1.1% | $8.1m | 420,000 | – | new |
| 32 | CSL CARLISLE COS INC | Industrials | 1.1% | $8.1m | 25,300 | – | new |
| 33 | GE GE AEROSPACE | Industrials | 1.1% | $8.0m | 25,948 | -21% | reduced |
| 34 | PTGX PROTAGONIST THERAPEUTICS | Healthcare | 1.0% | $7.5m | 86,000 | 4% | added |
| 35 | EMBJ EMBRAER S.A. | Industrials | 1.0% | $7.5m | 115,930 | – | new |
| 36 | ABVX ABIVAX SA | 1.0% | $7.4m | 55,000 | -20% | reduced | |
| 37 | IMNM IMMUNOME INC | Healthcare | 1.0% | $7.2m | 334,341 | – | new |
| 38 | TTMI TTM TECHNOLOGIES INC | Technology | 1.0% | $7.0m | 101,473 | – | new |
| 39 | ROKU ROKU INC | Communication Services | 0.9% | $6.6m | 61,000 | -54% | reduced |
| 40 | FERG FERGUSON ENTERPRISES INC | Industrials | 0.9% | $6.5m | 29,300 | 0% | held |
| 41 | RH RH | Consumer Cyclical | 0.9% | $6.3m | 35,000 | – | new |
| 42 | SN SHARKNINJA INC | Consumer Cyclical | 0.8% | $5.9m | 52,600 | 31% | added |
| 43 | HOOD ROBINHOOD MKTS INC | Financial Services | 0.8% | $5.8m | 51,500 | -57% | reduced |
| 44 | DNTH DIANTHUS THERAPEUTICS INC | Healthcare | 0.8% | $5.5m | 134,528 | – | new |
| 45 | CW CURTISS WRIGHT CORP | Industrials | 0.8% | $5.4m | 9,882 | -2% | reduced |
| 46 | WRBY WARBY PARKER INC | Healthcare | 0.8% | $5.4m | 248,971 | – | new |
| 47 | MDLN MEDLINE INC | Healthcare | 0.7% | $4.9m | 117,800 | – | new |
| 48 | TBBB BBB FOODS INC | Consumer Defensive | 0.7% | $4.8m | 142,282 | -11% | reduced |
| 49 | FIGR FIGURE TECHNOLOGY SOLUTIO | Financial Services | 0.6% | $4.6m | 111,447 | 106% | added |
| 50 | BBWI BATH & BODY WORKS INC | Consumer Cyclical | 0.6% | $4.5m | 225,000 | – | new |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.