Atika Capital Management Llc Portfolio Stock Holdings
According to the SEC 13F filed on August 13, 2026, Atika Capital Management Llc disclosed 57 stock positions valued at approximately $1.01B as of quarter-end June 30, 2026. The largest holdings include VERTIV HOLDINGS CO, SEAGATE TECHNOLOGY HLDNGS PL, and ADVANCED MICRO DEVICES INC.
- Report Period
- June 30, 2026
- No. of Stocks
- 57
- Portfolio Value
- $1.01B
Holdings by Sector
Atika Capital Management Llc Portfolio Holdings in Q2 2026
| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| VERTIV HOLDINGS CO | VRT | Industrials | 22.13% | 666,100 | - | - | $223,023,601 |
| SEAGATE TECHNOLOGY HLDNGS PL | STX | Other | 7.65% | 79,865 | +26,365 | +49.28% | $77,069,725 |
| ADVANCED MICRO DEVICES INC | AMD | Technology | 5.50% | 95,500 | +95,500 | +100.00% | $55,476,904 |
| ELI LILLY & CO | LLY | Healthcare | 4.89% | 41,100 | - | - | $49,296,573 |
| INTEL CORP | INTC | Technology | 3.66% | 264,000 | +264,000 | +100.00% | $36,862,320 |
| ECHOSTAR CORP | SATS | Technology | 3.34% | 331,400 | +149,400 | +82.09% | $33,637,101 |
| GUARDANT HEALTH INC | GH | Healthcare | 2.69% | 181,000 | +90,000 | +98.90% | $27,155,430 |
| CIENA CORP | CIEN | Technology | 2.37% | 48,768 | +5,117 | +11.72% | $23,923,629 |
| INTUITIVE SURGICAL INC | ISRG | Healthcare | 2.26% | 57,216 | - | - | $22,753,659 |
| VISHAY PRECISION GROUP INC | VPG | Technology | 1.76% | 118,000 | +118,000 | +100.00% | $17,689,380 |
| MARVELL TECHNOLOGY INC | MRVL | Technology | 1.71% | 58,000 | +58,000 | +100.00% | $17,277,620 |
| WESTERN DIGITAL CORP | WDC | Technology | 1.68% | 26,477 | -11,240 | -29.80% | $16,911,389 |
| REVOLUTION MEDICINES INC | RVMD | Healthcare | 1.64% | 88,000 | +88,000 | +100.00% | $16,480,639 |
| DIANTHUS THERAPEUTICS INC | DNTH | Healthcare | 1.60% | 165,000 | +36,200 | +28.11% | $16,084,201 |
| AXSOME THERAPEUTICS INC. | AXSM | Healthcare | 1.53% | 63,000 | +7,500 | +13.51% | $15,420,511 |
| TEVA PHARMACEUTICAL INDS LTD | TEVA | Healthcare | 1.48% | 440,000 | -37,000 | -7.76% | $14,907,200 |
| MASTEC INC | MTZ | Industrials | 1.47% | 35,500 | -22,136 | -38.41% | $14,770,130 |
| SHARKNINJA INC | SN | Other | 1.33% | 88,000 | +35,400 | +67.30% | $13,399,761 |
| NETFLIX INC. | NFLX | Communication Services | 1.28% | 180,000 | - | - | $12,852,000 |
| CURTISS WRIGHT CORP | CW | Industrials | 1.20% | 16,000 | +3,000 | +23.08% | $12,124,160 |
| KYMERA THERAPEUTICS INC | KYMR | Healthcare | 1.18% | 104,000 | +104,000 | +100.00% | $11,925,681 |
| SITIME CORP | SITM | Technology | 1.11% | 15,000 | +195 | +1.32% | $11,183,400 |
| TWIST BIOSCIENCE CORP | TWST | Healthcare | 1.10% | 108,000 | +108,000 | +100.00% | $11,111,040 |
| THE REALREAL INC | REAL | Consumer Cyclical | 1.10% | 940,000 | +488,945 | +108.40% | $11,082,601 |
| COGENT BIOSCIENCES INC | COGT | Healthcare | 1.04% | 272,000 | -21,200 | -7.23% | $10,526,400 |
| BWX TECHNOLOGIES INC | BWXT | Industrials | 1.04% | 54,000 | -28,550 | -34.59% | $10,511,101 |
| AMAZON COM INC | AMZN | Consumer Cyclical | 1.04% | 44,000 | +300 | +0.69% | $10,486,959 |
| BBB FOODS INC | TBBB | Other | 1.03% | 250,000 | +154,782 | +162.56% | $10,417,500 |
| AXOGEN INC | AXGN | Healthcare | 1.01% | 221,000 | +221,000 | +100.00% | $10,207,991 |
| NOKIA CORP | NOK | Technology | 0.99% | 750,000 | +750,000 | +100.00% | $9,960,000 |
Showing 30 of 57 holdings in the latest reporting period.
Atika Capital Management Llc Options Holdings in Q2 2026
| Quarter | Symbol | Company | Option | Contracts | Notional Value |
|---|---|---|---|---|---|
| Q2 2026 | XBI | SPDR Series Trust SPDR S&P Bio | PUT | 5,625 | $89,015,625 |
| Q2 2026 | QQQ | Invesco QQQ Trust, Series 1 | PUT | 1,000 | $73,640,000 |
| Q2 2026 | GEV | GE Vernova Inc. | PUT | 500 | $58,743,000 |
| Q2 2026 | AMZN | Amazon.com, Inc. | CALL | 2,220 | $52,911,480 |
| Q2 2026 | QQQ | Invesco QQQ Trust, Series 1 | CALL | 660 | $48,602,400 |
| Q2 2026 | MU | Micron Technology, Inc. | PUT | 300 | $34,623,300 |
| Q2 2026 | SMH | VanEck Semiconductor ETF | PUT | 510 | $33,450,390 |
| Q2 2026 | IGV | iShares Expanded Tech-Software | PUT | 2,720 | $24,643,200 |
| Q2 2026 | BTI | British American Tobacco Indus | CALL | 3,300 | $20,380,800 |
| Q2 2026 | IBIT | iShares Bitcoin Trust ETF | PUT | 6,000 | $19,974,000 |
| Q2 2026 | STUB | StubHub Holdings, Inc. | CALL | 9,000 | $11,583,000 |
| Q2 2026 | ALKS | Alkermes | CALL | 1,600 | $8,384,000 |
| Q2 2026 | SATS | EchoStar Corporation | CALL | 709 | $7,196,350 |
| Q2 2026 | ENPH | Enphase Energy, Inc. | CALL | 1,200 | $5,908,800 |
| Q2 2026 | CRWV | CoreWeave, Inc. | CALL | 350 | $3,483,900 |
| Q2 2026 | TEVA | Teva Pharmaceutical Industries | CALL | 1,000 | $3,388,000 |
| Q2 2026 | CLF | Cleveland-Cliffs Inc. | CALL | 1,500 | $1,408,500 |
| Q2 2026 | KEEL | Keel Infrastructure Corp. | CALL | 1,500 | $861,000 |
Showing 18 of 18 options positions in the latest reporting period.
Notional value represents the total exposure of the options position.