Atika Capital Management Llc Portfolio Stock Holdings
Atika Capital Management Llc disclosed 52 stock positions valued at approximately $633.6 million in its latest SEC 13F filing. The largest holdings include VERTIV HOLDINGS CO, ELI LILLY & CO, and INTUITIVE SURGICAL INC. The filing reflects positions held as of March 31, 2026 and was filed on May 14, 2026.
- Report Period
- March 31, 2026
- No. of Stocks
- 52
- Portfolio Value
- $633.6M
Holdings by Sector
Atika Capital Management Llc Portfolio Holdings in Q1 2026
46 holdings in the latest reporting period.
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| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| VERTIV HOLDINGS CO | VRT | Industrials | 26.34% | 666,100 | +30,000 | +4.72% | $166,911,338 |
| ELI LILLY & CO | LLY | Healthcare | 5.97% | 41,100 | - | - | $37,802,547 |
| INTUITIVE SURGICAL INC | ISRG | Healthcare | 4.16% | 57,216 | - | - | $26,376,003 |
| ECHOSTAR CORP | SATS | Technology | 3.36% | 182,000 | +57,194 | +45.83% | $21,306,740 |
| SEAGATE TECHNOLOGY HLDNGS PL | STX | Other | 3.31% | 53,500 | +1,593 | +3.07% | $20,959,160 |
| MASTEC INC | MTZ | Industrials | 2.93% | 57,636 | +1,638 | +2.93% | $18,543,806 |
| NETFLIX INC. | NFLX | Communication Services | 2.73% | 180,000 | - | - | $17,307,001 |
| CIENA CORP | CIEN | Technology | 2.67% | 43,651 | -16,349 | -27.25% | $16,946,628 |
| BWX TECHNOLOGIES INC | BWXT | Industrials | 2.66% | 82,550 | -26,350 | -24.20% | $16,880,650 |
| TERNS PHARMACEUTICALS INC | TERN | Healthcare | 2.50% | 300,000 | -21,165 | -6.59% | $15,816,000 |
| TEVA PHARMACEUTICAL INDS LTD | TEVA | Healthcare | 2.27% | 477,000 | -240,000 | -33.47% | $14,367,240 |
| CLOUDFLARE INC | NET | Technology | 2.12% | 65,000 | +10,100 | +18.40% | $13,412,100 |
| ALPHABET INC | GOOG | Communication Services | 1.96% | 43,250 | +1,050 | +2.49% | $12,406,695 |
| COGENT BIOSCIENCES INC | COGT | Healthcare | 1.78% | 293,200 | -212,800 | -42.06% | $11,285,268 |
| DIANTHUS THERAPEUTICS INC | DNTH | Healthcare | 1.71% | 128,800 | -5,728 | -4.26% | $10,808,896 |
| WESTERN DIGITAL CORP | WDC | Technology | 1.61% | 37,717 | +37,717 | +100.00% | $10,202,072 |
| AMAZON COM INC | AMZN | Consumer Cyclical | 1.44% | 43,700 | -36,300 | -45.38% | $9,101,400 |
| TTM TECHNOLOGIES INC | TTMI | Technology | 1.43% | 93,000 | -8,473 | -8.35% | $9,060,060 |
| FIVE BELOW INC | FIVE | Consumer Cyclical | 1.42% | 39,480 | -16,720 | -29.75% | $9,020,390 |
| CURTISS WRIGHT CORP | CW | Industrials | 1.40% | 13,000 | +3,118 | +31.55% | $8,854,560 |
| GUARDANT HEALTH INC | GH | Healthcare | 1.33% | 91,000 | -17,000 | -15.74% | $8,405,670 |
| MERCADOLIBRE INC | MELI | Consumer Cyclical | 1.23% | 4,510 | -1,437 | -24.16% | $7,797,881 |
| APPFOLIO INC | APPF | Technology | 1.18% | 47,500 | +3,000 | +6.74% | $7,496,450 |
| VANECK ETF TRUST | GDX | Other | 1.16% | 80,000 | +80,000 | +100.00% | $7,341,600 |
| UNITED THERAPEUTICS CORP DEL | UTHR | Healthcare | 1.16% | 12,350 | +12,350 | +100.00% | $7,323,304 |
| FERGUSON ENTERPRISES INC | FERG | Industrials | 1.08% | 29,300 | - | - | $6,834,518 |
| PROTAGONIST THERAPEUTICS INC | PTGX | Healthcare | 1.03% | 62,100 | -23,900 | -27.79% | $6,545,339 |
| CLEAN HARBORS INC | CLH | Industrials | 0.99% | 21,855 | +18,855 | +628.50% | $6,266,484 |
| TALEN ENERGY CORP | TLN | Other | 0.93% | 18,490 | -23,610 | -56.08% | $5,902,563 |
| IMMUNOME INC | IMNM | Healthcare | 0.91% | 262,900 | -71,441 | -21.37% | $5,749,623 |
| META PLATFORMS INC | META | Communication Services | 0.90% | 10,000 | +10,000 | +100.00% | $5,721,300 |
| HEICO CORP NEW | HEI | Industrials | 0.83% | 19,265 | -7,035 | -26.75% | $5,282,464 |
| QXO INC | QXO | Technology | 0.81% | 264,253 | -155,747 | -37.08% | $5,131,794 |
| SITIME CORP | SITM | Technology | 0.81% | 14,805 | +14,805 | +100.00% | $5,112,907 |
| GE AEROSPACE | GE | Industrials | 0.69% | 15,510 | -10,438 | -40.23% | $4,401,273 |
| ASCENDIS PHARMA A/S | ASND | Healthcare | 0.69% | 19,125 | -1,517 | -7.35% | $4,374,461 |
| THE REALREAL INC | REAL | Consumer Cyclical | 0.65% | 451,055 | -113,945 | -20.17% | $4,095,579 |
| NLIGHT INC | LASR | Technology | 0.59% | 66,000 | +66,000 | +100.00% | $3,763,320 |
| XENON PHARMACEUTICALS INC | XENE | Healthcare | 0.55% | 59,900 | -32,606 | -35.25% | $3,483,185 |
| ABIVAX SA | ABVX | Healthcare | 0.51% | 28,800 | -26,200 | -47.64% | $3,206,880 |
| ACADIA HEALTHCARE COMPANY IN | ACHC | Healthcare | 0.45% | 122,600 | +122,600 | +100.00% | $2,867,613 |
| WARBY PARKER INC | WRBY | Healthcare | 0.45% | 135,000 | -113,971 | -45.78% | $2,844,450 |
| KRYSTAL BIOTECH INC | KRYS | Healthcare | 0.43% | 10,625 | +10,625 | +100.00% | $2,744,650 |
| BRIDGEBIO PHARMA INC | BBIO | Healthcare | 0.41% | 35,200 | +35,200 | +100.00% | $2,613,952 |
| HUT 8 CORP | HUT | Financial Services | 0.36% | 49,300 | +49,300 | +100.00% | $2,312,663 |
| HEICO CORP NEW | HEI-A | Industrials | 0.35% | 10,575 | +10,575 | +100.00% | $2,232,277 |
Atika Capital Management Llc Options Holdings in Q1 2026
8 options positions in the latest reporting period.
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| Quarter | Symbol | Company | Option | Contracts | Notional Value |
|---|---|---|---|---|---|
| Q1 2026 | XBI | SPDR Series Trust SPDR S&P Bio | PUT | 4,225 | $53,965,925 |
| Q1 2026 | SMH | VanEck Semiconductor ETF | PUT | 720 | $27,604,800 |
| Q1 2026 | IWM | iShares Russell 2000 ETF | PUT | 1,000 | $24,800,000 |
| Q1 2026 | SATS | EchoStar Corporation | CALL | 1,583 | $18,532,181 |
| Q1 2026 | NFLX | Netflix, Inc. | CALL | 1,650 | $15,864,750 |
| Q1 2026 | GDX | VanEck Gold Miners ETF | CALL | 1,500 | $13,765,500 |
| Q1 2026 | INTC | Intel Corporation | CALL | 1,000 | $4,413,000 |
| Q1 2026 | TERN | Terns Pharmaceuticals, Inc. | CALL | 720 | $3,795,840 |
Notional value represents the total exposure of the options position.