Atika Capital Management LLC 13F holdings, Q1 2026
Holdings as of March 31, 2026 · filings on SEC EDGAR · latest filing →
Atika Capital Management LLC disclosed 52 US equity positions worth $633.6m in its Q1 2026 13F filing. The largest position was VRT at 26.3% of the reported book, followed by LLY and ISRG.
What did Atika Capital Management LLC own in Q1 2026? Top 50 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs prior |
|---|---|---|---|---|---|---|---|
| 1 | VRT VERTIV HOLDINGS CO | Industrials | 26.3% | $166.9m | 666,100 | – | |
| 2 | LLY ELI LILLY & CO | Healthcare | 6.0% | $37.8m | 41,100 | – | |
| 3 | ISRG INTUITIVE SURGICAL INC | Healthcare | 4.2% | $26.4m | 57,216 | – | |
| 4 | ECHO ECHOSTAR CORP | Communication Services | 3.4% | $21.3m | 182,000 | – | |
| 5 | STX SEAGATE TECHNOLOGY HLDNGS PL | Technology | 3.3% | $21.0m | 53,500 | – | |
| 6 | MTZ MASTEC INC | Industrials | 2.9% | $18.5m | 57,636 | – | |
| 7 | NFLX NETFLIX INC. | Communication Services | 2.7% | $17.3m | 180,000 | – | |
| 8 | CIEN CIENA CORP | Technology | 2.7% | $16.9m | 43,651 | – | |
| 9 | BWXT BWX TECHNOLOGIES INC | Industrials | 2.7% | $16.9m | 82,550 | – | |
| 10 | 430 TERNS PHARMACEUTICALS INC | 2.5% | $15.8m | 300,000 | – | ||
| 11 | TEVA TEVA PHARMACEUTICAL INDS LTD | Healthcare | 2.3% | $14.4m | 477,000 | – | |
| 12 | NET CLOUDFLARE INC | Technology | 2.1% | $13.4m | 65,000 | – | |
| 13 | GOOG ALPHABET INC | Communication Services | 2.0% | $12.4m | 43,250 | – | |
| 14 | COGT COGENT BIOSCIENCES INC | Healthcare | 1.8% | $11.3m | 293,200 | – | |
| 15 | ORKA ORUKA THERAPEUTICS INC | Healthcare | 1.8% | $11.3m | 229,900 | – | |
| 16 | DNTH DIANTHUS THERAPEUTICS INC | Healthcare | 1.7% | $10.8m | 128,800 | – | |
| 17 | WDC WESTERN DIGITAL CORP | Technology | 1.6% | $10.2m | 37,717 | – | |
| 18 | AMZN AMAZON COM INC | Consumer Cyclical | 1.4% | $9.1m | 43,700 | – | |
| 19 | TTMI TTM TECHNOLOGIES INC | Technology | 1.4% | $9.1m | 93,000 | – | |
| 20 | FIVE FIVE BELOW INC | Consumer Cyclical | 1.4% | $9.0m | 39,480 | – | |
| 21 | CW CURTISS WRIGHT CORP | Industrials | 1.4% | $8.9m | 13,000 | – | |
| 22 | GH GUARDANT HEALTH INC | Healthcare | 1.3% | $8.4m | 91,000 | – | |
| 23 | MELI MERCADOLIBRE INC | Consumer Cyclical | 1.2% | $7.8m | 4,510 | – | |
| 24 | APPF APPFOLIO INC | Technology | 1.2% | $7.5m | 47,500 | – | |
| 25 | GDX VANECK ETF TRUST | 1.2% | $7.3m | 80,000 | – | ||
| 26 | UTHR UNITED THERAPEUTICS CORP DEL | Healthcare | 1.2% | $7.3m | 12,350 | – | |
| 27 | KRMN KARMAN HLDGS INC | Industrials | 1.1% | $7.2m | 90,500 | – | |
| 28 | FERG FERGUSON ENTERPRISES INC | Industrials | 1.1% | $6.8m | 29,300 | – | |
| 29 | PTGX PROTAGONIST THERAPEUTICS INC | Healthcare | 1.0% | $6.5m | 62,100 | – | |
| 30 | CLH CLEAN HARBORS INC | Industrials | 1.0% | $6.3m | 21,855 | – | |
| 31 | TLN TALEN ENERGY CORP | Utilities | 0.9% | $5.9m | 18,490 | – | |
| 32 | IMNM IMMUNOME INC | Healthcare | 0.9% | $5.7m | 262,900 | – | |
| 33 | META META PLATFORMS INC | Communication Services | 0.9% | $5.7m | 10,000 | – | |
| 34 | DBVT DBV TECHNOLOGIES S A | 0.9% | $5.7m | 271,300 | – | ||
| 35 | RKLB ROCKET LAB CORP | Industrials | 0.9% | $5.5m | 86,000 | – | |
| 36 | HEI HEICO CORP NEW | Industrials | 0.8% | $5.3m | 19,265 | – | |
| 37 | QXO QXO INC | Industrials | 0.8% | $5.1m | 264,253 | – | |
| 38 | SITM SITIME CORP | Technology | 0.8% | $5.1m | 14,805 | – | |
| 39 | GE GE AEROSPACE | Industrials | 0.7% | $4.4m | 15,510 | – | |
| 40 | ASND ASCENDIS PHARMA A/S | Healthcare | 0.7% | $4.4m | 19,125 | – | |
| 41 | REAL THE REALREAL INC | Consumer Cyclical | 0.6% | $4.1m | 451,055 | – | |
| 42 | LASR NLIGHT INC | Technology | 0.6% | $3.8m | 66,000 | – | |
| 43 | XENE XENON PHARMACEUTICALS INC | Healthcare | 0.5% | $3.5m | 59,900 | – | |
| 44 | TBBB BBB FOODS INC | Consumer Defensive | 0.5% | $3.4m | 95,218 | – | |
| 45 | MAZE MAZE THERAPEUTICS INC | Healthcare | 0.5% | $3.3m | 111,500 | – | |
| 46 | ABVX ABIVAX SA | Healthcare | 0.5% | $3.2m | 28,800 | – | |
| 47 | ACHC ACADIA HEALTHCARE COMPANY IN | Healthcare | 0.5% | $2.9m | 122,600 | – | |
| 48 | WRBY WARBY PARKER INC | Healthcare | 0.4% | $2.8m | 135,000 | – | |
| 49 | KRYS KRYSTAL BIOTECH INC | Healthcare | 0.4% | $2.7m | 10,625 | – | |
| 50 | BBIO BRIDGEBIO PHARMA INC | Healthcare | 0.4% | $2.6m | 35,200 | – |
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.