Atika Capital Management LLC - Stock Holdings in 13F Filings (SEC)
Updated on March 15, 2026.
Based on 13F Filings filed with the SEC on February 13, 2026, for the 2025 Q4 period, Atika Capital Management LLC held in its portfolio 74 assets valued at $949,828,507 (i.e. $949.83M).
The most valuable assets in the portfolio included: SPDR SERIES TRUST ($117.36M), VERTIV HOLDINGS CO ($103.06M), and ECHOSTAR CORP ($56.86M).
The chart below shows the top 10 valuable assets, and the table below shows the top 74 valuable assets.
You can see similar for other investment managers.
Related Topics: SEC Topic List.
Data Source: SEC.
Atika Capital Management LLC - Stock Holdings in 13F Filings (SEC)
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| Name of Issuer | No. of Shares | Value ($) | Class |
|---|---|---|---|
| SPDR SERIES TRUST | 9625 | 117357625 | STATE STREET SPD |
| VERTIV HOLDINGS CO | 636100 | 103054560 | COM CL A |
| ECHOSTAR CORP | 128789 | 56861622 | CL A |
| ELI LILLY & CO | 41100 | 44169348 | COM |
| INTUITIVE SURGICAL INC | 57216 | 32404853 | COM NEW |
| TEVA PHARMACEUTICAL INDS | 720000 | 31740569 | SPONSORED ADS |
| ISHARES TR | 910 | 22400560 | RUSSELL 2000 ETF |
| SHOPIFY INC | 124000 | 19960280 | CL A SUB VTG SHS |
| MADRIGAL PHARMACEUTICALS | 34000 | 19799560 | COM |
| BWX TECHNOLOGIES INC | 108900 | 18822276 | COM |
| AMAZON COM INC | 80000 | 18465600 | COM |
| COGENT BIOSCIENCES INC | 506000 | 17973119 | COM |
| NETFLIX INC | 180000 | 16876800 | COM |
| TALEN ENERGY CORP | 42100 | 15780764 | COM |
| SEAGATE TECHNOLOGY HLDNGS | 51907 | 14294669 | ORD SHS |
| CIENA CORP | 60000 | 14032201 | COM NEW |
| ROBINHOOD MKTS INC | 52200 | 13741650 | COM CL A |
| TESLA INC | 30000 | 13491600 | COM |
| INSMED INC | 77200 | 13435888 | COM PAR $.01 |
| ALPHABET INC | 42200 | 13242360 | CAP STK CL C |
| TERNS PHARMACEUTICALS INC | 321165 | 12975066 | COM |
| MASTEC INC | 55998 | 12172285 | COM |
| MERCADOLIBRE INC | 5947 | 11978805 | COM |
| GUARDANT HEALTH INC | 108000 | 11031120 | COM |
| CLOUDFLARE INC | 54900 | 10823535 | CL A COM |
| FIVE BELOW INC | 56200 | 10585832 | COM |
| DOORDASH INC | 46000 | 10418080 | CL A |
| APPFOLIO INC | 44500 | 10352925 | COM CL A |
| AXSOME THERAPEUTICS INC | 55500 | 10136520 | COM |
| MONGODB INC | 22326 | 9369999 | CL A |
| THE REALREAL INC | 565000 | 8915699 | COM |
| HEICO CORP NEW | 26300 | 8510417 | COM |
| LEMONADE INC | 113917 | 8108612 | COM |
| QXO INC | 420000 | 8101801 | COM NEW |
| CARLISLE COS INC | 25300 | 8092458 | COM |
| GE AEROSPACE | 25948 | 7992763 | COM NEW |
| PROTAGONIST THERAPEUTICS | 86000 | 7511240 | COM |
| EMBRAER S.A. | 115930 | 7462414 | SPONSORED ADS |
| ISHARES BITCOIN TRUST ETF | 1500 | 7447500 | SHS BEN INT |
| ABIVAX SA | 55000 | 7417025 | SPONSORED ADS |
| IMMUNOME INC | 334341 | 7181644 | COM |
| TTM TECHNOLOGIES INC | 101473 | 7001637 | COM |
| ROKU INC | 61000 | 6617890 | COM CL A |
| FERGUSON ENTERPRISES INC | 29300 | 6523059 | COMMON STOCK NEW |
| RH | 35000 | 6270250 | COM |
| SHARKNINJA INC | 52600 | 5885940 | COM SHS |
| DIANTHUS THERAPEUTICS INC | 134528 | 5543899 | COM |
| CURTISS WRIGHT CORP | 9882 | 5447651 | COM |
| WARBY PARKER INC | 248971 | 5425078 | CL A COM |
| MEDLINE INC | 117800 | 4947600 | COM CL A |
| FLOOR & DECOR HLDGS INC | 800 | 4871200 | CL A |
| RIVIAN AUTOMOTIVE INC | 2420 | 4769820 | COM CL A |
| BBB FOODS INC | 142282 | 4750796 | CL A COM |
| FIGURE TECHNOLOGY SOLUTIO | 111447 | 4551495 | COM CL A |
| BATH & BODY WORKS INC | 225000 | 4518000 | COM |
| ISHARES TR | 816 | 4464336 | MSCI EMG MKT ETF |
| ASCENDIS PHARMA A/S | 20642 | 4401700 | SPONSORED ADR |
| ROCKET LAB CORP | 62115 | 4333142 | COM |
| EOS ENERGY ENTERPRISES INC | 3720 | 4263120 | COM CL A |
| XENON PHARMACEUTICALS INC | 92506 | 4146119 | COM |
| ALNYLAM PHARMACEUTICALS INC | 10339 | 4111303 | COM |
| DBV TECHNOLOGIES S A | 206881 | 3965909 | SPONSORED ADS |
| KINIKSA PHARMACEUTICALS | 93970 | 3876263 | ORD SHS CL A |
| IONIS PHARMACEUTICALS INC | 47488 | 3756776 | COM |
| ABERCROMBIE & FITCH CO | 29000 | 3650230 | CL A |
| RAPT THERAPEUTICS INC | 94245 | 3192078 | COM NEW |
| APPLIED OPTOELECTRONICS INC | 87657 | 3055722 | COM |
| ROCKET COS INC | 130000 | 2516800 | COM CL A |
| MODERNA INC | 760 | 2241240 | COM |
| UNITY SOFTWARE INC | 500 | 2208500 | COM |
| CECO ENVIRONMENTAL CORP | 29804 | 1783769 | COM |
| CIDARA THERAPEUTICS INC | 49 | 1082361 | COM NEW |
| CLEAN HARBORS INC | 3000 | 703440 | COM |
| REDDIT INC | 2000 | 459740 | CL A |
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