Atika Capital Management LLC
Securities ▲▼ | Shares | Value ($K) | |||||
|---|---|---|---|---|---|---|---|
Q4 2025 ▲▼ | Q1 2026 ▲▼ | Change ▲▼ | Q4 2025 ▲▼ | Q1 2026 ▲▼ | Weight (%) ▲▼ | Change ▲▼ | |
| VERTIV HOLDINGS CO(VRT) | 636,100 | 666,100 | +30,000 | 103,054,560 | 166,911,338 | 26.34% | +63,856,778 |
| VANECK ETF TRUST(Put) SEMICONDUCTR ETF | 0 | 720 | +720 | 0 | 27,604,800 | — | +27,604,800 |
| NETFLIX INC.(NFLX)(Call) | 0 | 1,650 | +1,650 | 0 | 15,864,750 | — | +15,864,750 |
| VANECK ETF TRUST(Call) GOLD MINERS ETF | 0 | 1,500 | +1,500 | 0 | 13,765,500 | — | +13,765,500 |
| ORUKA THERAPEUTICS INC(ORKA) | 0 | 229,900 | +229,900 | 0 | 11,276,595 | 1.78% | +11,276,595 |
| WESTERN DIGITAL CORP(WDC) | 0 | 37,717 | +37,717 | 0 | 10,202,072 | 1.61% | +10,202,072 |
| ECHOSTAR CORP(ECHO) | 124,806 | 182,000 | +57,194 | 13,566,412 | 21,306,740 | 3.36% | +7,740,328 |
| VANECK ETF TRUST GOLD MINERS ETF | 0 | 80,000 | +80,000 | 0 | 7,341,600 | 1.16% | +7,341,600 |
| UNITED THERAPEUTICS CORP DEL(UTHR) | 0 | 12,350 | +12,350 | 0 | 7,323,304 | 1.16% | +7,323,304 |
| KARMAN HLDGS INC(KRMN) | 0 | 90,500 | +90,500 | 0 | 7,244,526 | 1.14% | +7,244,526 |
| SEAGATE TECHNOLOGY HLDNGS PL ORD SHS | 51,907 | 53,500 | +1,593 | 14,294,669 | 20,959,160 | 3.31% | +6,664,491 |
| MASTEC INC(MTZ) | 55,998 | 57,636 | +1,638 | 12,172,285 | 18,543,806 | 2.93% | +6,371,521 |
| META PLATFORMS INC(META) | 0 | 10,000 | +10,000 | 0 | 5,721,300 | 0.90% | +5,721,300 |
| CLEAN HARBORS INC(CLH) | 3,000 | 21,855 | +18,855 | 703,440 | 6,266,484 | 0.99% | +5,563,044 |
| DIANTHUS THERAPEUTICS INC(DNTH) | 134,528 | 128,800 | -5,728 | 5,543,899 | 10,808,896 | 1.71% | +5,264,997 |
| SITIME CORP(SITM) | 0 | 14,805 | +14,805 | 0 | 5,112,907 | 0.81% | +5,112,907 |
| INTEL CORP(INTC)(Call) | 0 | 1,000 | +1,000 | 0 | 4,413,000 | — | +4,413,000 |
| TERNS PHARMACEUTICALS INC(Call) | 0 | 720 | +720 | 0 | 3,795,840 | — | +3,795,840 |
| NLIGHT INC(LASR) | 0 | 66,000 | +66,000 | 0 | 3,763,320 | 0.59% | +3,763,320 |
| CURTISS WRIGHT CORP(CW) | 9,882 | 13,000 | +3,118 | 5,447,651 | 8,854,560 | 1.40% | +3,406,909 |
| MAZE THERAPEUTICS INC(MAZE) | 0 | 111,500 | +111,500 | 0 | 3,328,276 | 0.53% | +3,328,276 |
| CIENA CORP(CIEN) | 60,000 | 43,651 | -16,349 | 14,032,201 | 16,946,628 | 2.67% | +2,914,427 |
| ACADIA HEALTHCARE COMPANY IN(ACHC) | 0 | 122,600 | +122,600 | 0 | 2,867,613 | 0.45% | +2,867,613 |
| TERNS PHARMACEUTICALS INC | 321,165 | 300,000 | -21,165 | 12,975,066 | 15,816,000 | 2.50% | +2,840,934 |
| KRYSTAL BIOTECH INC(KRYS) | 0 | 10,625 | +10,625 | 0 | 2,744,650 | 0.43% | +2,744,650 |
| BRIDGEBIO PHARMA INC(BBIO) | 0 | 35,200 | +35,200 | 0 | 2,613,952 | 0.41% | +2,613,952 |
| CLOUDFLARE INC(NET) | 54,900 | 65,000 | +10,100 | 10,823,535 | 13,412,100 | 2.12% | +2,588,565 |
| ISHARES TR(Put) | 910 | 1,000 | +90 | 22,400,560 | 24,800,000 | — | +2,399,440 |
| HUT 8 CORP(HUT) | 0 | 49,300 | +49,300 | 0 | 2,312,663 | 0.36% | +2,312,663 |
| HEICO CORP NEW | 0 | 10,575 | +10,575 | 0 | 2,232,277 | 0.35% | +2,232,277 |
| TTM TECHNOLOGIES INC(TTMI) | 101,473 | 93,000 | -8,473 | 7,001,637 | 9,060,060 | 1.43% | +2,058,423 |
| DBV TECHNOLOGIES S A | 206,881 | 271,300 | +64,419 | 3,965,909 | 5,667,456 | 0.89% | +1,701,547 |
| ROCKET LAB CORP(RKLB) | 62,115 | 86,000 | +23,885 | 4,333,142 | 5,522,920 | 0.87% | +1,189,778 |
| NETFLIX INC.(NFLX) | 180,000 | 180,000 | 0 | 16,876,800 | 17,307,001 | 2.73% | +430,201 |
| FERGUSON ENTERPRISES INC(FERG) | 29,300 | 29,300 | 0 | 6,523,059 | 6,834,518 | 1.08% | +311,459 |
| ASCENDIS PHARMA A/S(ASND) | 20,642 | 19,125 | -1,517 | 4,401,700 | 4,374,461 | 0.69% | -27,239 |
| REDDIT INC(RDDT) | 2,000 | 0 | -2,000 | 459,740 | 0 | — | -459,740 |
| XENON PHARMACEUTICALS INC(XENE) | 92,506 | 59,900 | -32,606 | 4,146,119 | 3,483,185 | 0.55% | -662,934 |
| ALPHABET INC(GOOG) | 42,200 | 43,250 | +1,050 | 13,242,360 | 12,406,695 | 1.96% | -835,665 |
| PROTAGONIST THERAPEUTICS INC | 86,000 | 62,100 | -23,900 | 7,511,240 | 6,545,339 | 1.03% | -965,901 |
| CIDARA THERAPEUTICS INC(Call) | 49 | 0 | -49 | 1,082,361 | 0 | — | -1,082,361 |
| BBB FOODS INC(TBBB) | 142,282 | 95,218 | -47,064 | 4,750,796 | 3,367,861 | 0.53% | -1,382,935 |
| IMMUNOME INC(IMNM) | 334,341 | 262,900 | -71,441 | 7,181,644 | 5,749,623 | 0.91% | -1,432,021 |
| FIVE BELOW INC(FIVE) | 56,200 | 39,480 | -16,720 | 10,585,832 | 9,020,390 | 1.42% | -1,565,442 |
| CECO ENVIRONMENTAL CORP(CECO) | 29,804 | 0 | -29,804 | 1,783,769 | 0 | — | -1,783,769 |
| BWX TECHNOLOGIES INC(BWXT) | 108,900 | 82,550 | -26,350 | 18,822,276 | 16,880,650 | 2.66% | -1,941,626 |
| UNITY SOFTWARE INC(U)(Call) | 500 | 0 | -500 | 2,208,500 | 0 | — | -2,208,500 |
| MODERNA INC(MRNA)(Put) | 760 | 0 | -760 | 2,241,240 | 0 | — | -2,241,240 |
| ROCKET COS INC(RKT) | 130,000 | 0 | -130,000 | 2,516,800 | 0 | — | -2,516,800 |
| WARBY PARKER INC(WRBY) | 248,971 | 135,000 | -113,971 | 5,425,078 | 2,844,450 | 0.45% | -2,580,628 |
| GUARDANT HEALTH INC(GH) | 108,000 | 91,000 | -17,000 | 11,031,120 | 8,405,670 | 1.33% | -2,625,450 |
| APPFOLIO INC(APPF) | 44,500 | 47,500 | +3,000 | 10,352,925 | 7,496,450 | 1.18% | -2,856,475 |
| QXO INC(QXO) | 420,000 | 264,253 | -155,747 | 8,101,801 | 5,131,794 | 0.81% | -2,970,007 |
| APPLIED OPTOELECTRONICS INC(AAOI) | 87,657 | 0 | -87,657 | 3,055,722 | 0 | — | -3,055,722 |
| RAPT THERAPEUTICS INC | 94,245 | 0 | -94,245 | 3,192,078 | 0 | — | -3,192,078 |
| HEICO CORP NEW(HEI) | 26,300 | 19,265 | -7,035 | 8,510,417 | 5,282,464 | 0.83% | -3,227,953 |
| GE AEROSPACE(GE) | 25,948 | 15,510 | -10,438 | 7,992,763 | 4,401,273 | 0.69% | -3,591,490 |
| ABERCROMBIE & FITCH CO | 29,000 | 0 | -29,000 | 3,650,230 | 0 | — | -3,650,230 |
| IONIS PHARMACEUTICALS INC(IONS) | 47,488 | 0 | -47,488 | 3,756,776 | 0 | — | -3,756,776 |
| KINIKSA PHARMACEUTICALS(KNSA) | 93,970 | 0 | -93,970 | 3,876,263 | 0 | — | -3,876,263 |
| ALNYLAM PHARMACEUTICALS INC(ALNY) | 10,339 | 0 | -10,339 | 4,111,303 | 0 | — | -4,111,303 |
| MERCADOLIBRE INC(MELI) | 5,947 | 4,510 | -1,437 | 11,978,805 | 7,797,881 | 1.23% | -4,180,924 |
| ABIVAX SA(ABVX) | 55,000 | 28,800 | -26,200 | 7,417,025 | 3,206,880 | 0.51% | -4,210,145 |
| EOS ENERGY ENTERPRISES INC(EOSE)(Call) | 3,720 | 0 | -3,720 | 4,263,120 | 0 | — | -4,263,120 |
| ISHARES TR(Call) | 816 | 0 | -816 | 4,464,336 | 0 | — | -4,464,336 |
| BATH & BODY WORKS INC | 225,000 | 0 | -225,000 | 4,518,000 | 0 | — | -4,518,000 |
| FIGURE TECHNOLOGY SOLUTIO(FGRS) | 111,447 | 0 | -111,447 | 4,551,495 | 0 | — | -4,551,495 |
| RIVIAN AUTOMOTIVE INC(RIVN)(Call) | 2,420 | 0 | -2,420 | 4,769,820 | 0 | — | -4,769,820 |
| THE REALREAL INC(REAL) | 565,000 | 451,055 | -113,945 | 8,915,699 | 4,095,579 | 0.65% | -4,820,120 |
| FLOOR & DECOR HLDGS INC(FND)(Call) | 800 | 0 | -800 | 4,871,200 | 0 | — | -4,871,200 |
| MEDLINE INC(MDLN) | 117,800 | 0 | -117,800 | 4,947,600 | 0 | — | -4,947,600 |
| ROBINHOOD MKTS INC(HOOD) | 51,500 | 0 | -51,500 | 5,824,650 | 0 | — | -5,824,650 |
| SHARKNINJA INC(SN) | 52,600 | 0 | -52,600 | 5,885,940 | 0 | — | -5,885,940 |
| INTUITIVE SURGICAL INC | 57,216 | 57,216 | 0 | 32,404,853 | 26,376,003 | 4.16% | -6,028,850 |
| RH(RH) | 35,000 | 0 | -35,000 | 6,270,250 | 0 | — | -6,270,250 |
| ELI LILLY & CO(LLY) | 41,100 | 41,100 | 0 | 44,169,348 | 37,802,547 | 5.97% | -6,366,801 |
| ROKU INC(ROKU) | 61,000 | 0 | -61,000 | 6,617,890 | 0 | — | -6,617,890 |
| COGENT BIOSCIENCES INC(COGT) | 506,000 | 293,200 | -212,800 | 17,973,119 | 11,285,268 | 1.78% | -6,687,851 |
| ISHARES BITCOIN TRUST ETF(IBIT)(Put) | 1,500 | 0 | -1,500 | 7,447,500 | 0 | — | -7,447,500 |
| EMBRAER S.A.(EMBJ) | 115,930 | 0 | -115,930 | 7,462,414 | 0 | — | -7,462,414 |
| ROBINHOOD MKTS INC(HOOD)(Put) | 700 | 0 | -700 | 7,917,000 | 0 | — | -7,917,000 |
| TEVA PHARMACEUTICAL INDS LTD(TEVA) | 717,000 | 477,000 | -240,000 | 22,377,569 | 14,367,240 | 2.27% | -8,010,329 |
| CARLISLE COS INC(CSL) | 25,300 | 0 | -25,300 | 8,092,458 | 0 | — | -8,092,458 |
| LEMONADE INC(LMND) | 113,917 | 0 | -113,917 | 8,108,612 | 0 | — | -8,108,612 |
| TEVA PHARMACEUTICAL INDS(TEVA)(Call) | 3,000 | 0 | -3,000 | 9,363,000 | 0 | — | -9,363,000 |
| AMAZON COM INC(AMZN) | 80,000 | 43,700 | -36,300 | 18,465,600 | 9,101,400 | 1.44% | -9,364,200 |
| MONGODB INC(MDB) | 22,326 | 0 | -22,326 | 9,369,999 | 0 | — | -9,369,999 |
| TALEN ENERGY CORP(TLN) | 42,100 | 18,490 | -23,610 | 15,780,764 | 5,902,563 | 0.93% | -9,878,201 |
| AXSOME THERAPEUTICS INC(AXSM) | 55,500 | 0 | -55,500 | 10,136,520 | 0 | — | -10,136,520 |
| DOORDASH INC(DASH) | 46,000 | 0 | -46,000 | 10,418,080 | 0 | — | -10,418,080 |
| INSMED INC(INSM) | 77,200 | 0 | -77,200 | 13,435,888 | 0 | — | -13,435,888 |
| TESLA INC(TSLA) | 30,000 | 0 | -30,000 | 13,491,600 | 0 | — | -13,491,600 |
| MADRIGAL PHARMACEUTICALS(MDGL) | 34,000 | 0 | -34,000 | 19,799,560 | 0 | — | -19,799,560 |
| SHOPIFY INC(SHOP) | 124,000 | 0 | -124,000 | 19,960,280 | 0 | — | -19,960,280 |
| ECHOSTAR CORP(ECHO)(Call) | 3,983 | 1,583 | -2,400 | 43,295,210 | 18,532,181 | — | -24,763,029 |
| SPDR SERIES TRUST(Put) ST STR SP BIOT | 9,625 | 4,225 | -5,400 | 117,357,625 | 53,965,925 | — | -63,391,700 |