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Atika Capital Management LLC
Period ended Jun 30, 2026 · Latest filing Aug 13, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Jun 30, 2026: $1,521,477,391
More quarters will appear as history becomes available.
Top holdings
Top 10 at Jun 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- VERTIV HOLDINGS CO · COM CL A · 92537N108 · shares: $223,023,601
- SPDR SERIES TRUST · ST STR SP BIOT · 78464A870 · shares · PUT: $89,015,625
- SEAGATE TECHNOLOGY HLDNGS PL · ORD SHS · G7997R103 · shares: $77,069,725
- INVESCO QQQ TR · UNIT SER 1 · 46090E103 · shares · PUT: $73,640,000
- GE VERNOVA INC · COM · 36828A101 · shares · PUT: $58,743,000
- ADVANCED MICRO DEVICES INC · COM · 007903107 · shares: $55,476,904
- AMAZON COM INC · COM · 023135106 · shares · CALL: $52,911,480
- ELI LILLY & CO · COM · 532457108 · shares: $49,296,573
- INVESCO QQQ TR · UNIT SER 1 · 46090E103 · shares · CALL: $48,602,400
- INTEL CORP · COM · 458140100 · shares: $36,862,320
Reported holdings
243 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| VERTIV HOLDINGS CO | COM CL A | 92537N108 | — | 386,059 shares | $129,260,274 |
| VERTIV HOLDINGS CO | COM CL A | 92537N108 | — | 191,027 shares | $63,959,660 |
| SPDR SERIES TRUST | ST STR SP BIOT | 78464A870 | PUT | 3,279 shares | $51,890,175 |
| SEAGATE TECHNOLOGY HLDNGS PL | ORD SHS | G7997R103 | — | 45,417 shares | $43,827,405 |
| INVESCO QQQ TR | UNIT SER 1 | 46090E103 | PUT | 582 shares | $42,858,480 |
| GE VERNOVA INC | COM | 36828A101 | PUT | 292 shares | $34,305,912 |
| ADVANCED MICRO DEVICES INC | COM | 007903107 | — | 55,674 shares | $32,341,583 |
| AMAZON COM INC | COM | 023135106 | CALL | 1,293 shares | $30,817,362 |
| VERTIV HOLDINGS CO | COM CL A | 92537N108 | — | 89,014 shares | $29,803,667 |
| ELI LILLY & CO | COM | 532457108 | — | 23,931 shares | $28,703,559 |
| INVESCO QQQ TR | UNIT SER 1 | 46090E103 | CALL | 385 shares | $28,351,400 |
| SPDR SERIES TRUST | ST STR SP BIOT | 78464A870 | PUT | 1,402 shares | $22,186,650 |
| INTEL CORP | COM | 458140100 | — | 153,824 shares | $21,478,445 |
| SEAGATE TECHNOLOGY HLDNGS PL | ORD SHS | G7997R103 | — | 21,535 shares | $20,781,275 |
| MICRON TECHNOLOGY INC | COM | 595112103 | PUT | 175 shares | $20,196,925 |
| ECHOSTAR CORP | CL A | 278768106 | — | 194,147 shares | $19,705,921 |
| VANECK ETF TRUST | SEMICONDUCTR ETF | 92189F676 | PUT | 297 shares | $19,479,933 |
| INVESCO QQQ TR | UNIT SER 1 | 46090E103 | PUT | 248 shares | $18,262,720 |
| GUARDANT HEALTH INC | COM | 40131M109 | — | 103,631 shares | $15,547,759 |
| SPDR SERIES TRUST | ST STR SP BIOT | 78464A870 | PUT | 944 shares | $14,938,800 |
| GE VERNOVA INC | COM | 36828A101 | PUT | 126 shares | $14,803,236 |
| ISHARES TR | EXPANDED TECH | 464287515 | PUT | 1,587 shares | $14,378,220 |
| ELI LILLY & CO | COM | 532457108 | — | 11,853 shares | $14,216,844 |
| ADVANCED MICRO DEVICES INC | COM | 007903107 | — | 24,130 shares | $14,017,358 |
| CIENA CORP | COM NEW | 171779309 | — | 27,590 shares | $13,534,550 |
| AMAZON COM INC | COM | 023135106 | CALL | 551 shares | $13,132,534 |
| INTUITIVE SURGICAL INC | COM NEW | 46120E602 | — | 32,976 shares | $13,113,896 |
| INVESCO QQQ TR | UNIT SER 1 | 46090E103 | PUT | 170 shares | $12,518,800 |
| SEAGATE TECHNOLOGY HLDNGS PL | ORD SHS | G7997R103 | — | 12,913 shares | $12,461,045 |
| INVESCO QQQ TR | UNIT SER 1 | 46090E103 | CALL | 164 shares | $12,076,960 |
| BRITISH AMERN TOB PLC | SPONSORED ADR | 110448107 | CALL | 1,924 shares | $11,882,624 |
| ISHARES BITCOIN TRUST ETF | SHS BEN INT | 46438F101 | PUT | 3,500 shares | $11,651,500 |
| VISHAY PRECISION GROUP INC | COM | 92835K103 | — | 68,840 shares | $10,319,804 |
| MARVELL TECHNOLOGY INC | COM | 573874104 | — | 33,810 shares | $10,071,661 |
| ROCKET LAB CORP | COM | 773121108 | — | 98,432 shares | $10,005,613 |
| WESTERN DIGITAL CORP | COM | 958102105 | — | 15,421 shares | $9,849,701 |
| GE VERNOVA INC | COM | 36828A101 | PUT | 82 shares | $9,633,852 |
| REVOLUTION MEDICINES INC | COM | 76155X100 | — | 51,298 shares | $9,607,089 |
| ASCENDIS PHARMA A/S | ORD SHS | K08588103 | — | 35,588 shares | $9,492,031 |
| DIANTHUS THERAPEUTICS INC | COM | 252828108 | — | 96,612 shares | $9,417,738 |
| INTEL CORP | COM | 458140100 | — | 66,814 shares | $9,329,239 |
| ADVANCED MICRO DEVICES INC | COM | 007903107 | — | 15,696 shares | $9,117,963 |
| ROUNDHILL ETF TRUST | MEMORY ETF | 77926X320 | PUT | 1,225 shares | $9,046,625 |
| AXSOME THERAPEUTICS INC. | COM | 05464T104 | — | 36,754 shares | $8,996,277 |
| AMAZON COM INC | COM | 023135106 | CALL | 376 shares | $8,961,584 |
| MICRON TECHNOLOGY INC | COM | 595112103 | PUT | 76 shares | $8,771,236 |
| TEVA PHARMACEUTICAL INDS LTD | SPONSORED ADS | 881624209 | — | 256,685 shares | $8,696,488 |
| MASTEC INC | COM | 576323109 | — | 20,694 shares | $8,609,946 |
| ECHOSTAR CORP | CL A | 278768106 | — | 84,770 shares | $8,604,155 |
| VANECK ETF TRUST | SEMICONDUCTR ETF | 92189F676 | PUT | 127 shares | $8,329,803 |
| INVESCO QQQ TR | UNIT SER 1 | 46090E103 | CALL | 111 shares | $8,174,040 |
| SHARKNINJA INC | COM SHS | G8068L108 | — | 51,254 shares | $7,804,447 |
| NETFLIX INC. | COM | 64110L106 | — | 104,500 shares | $7,461,300 |
| GUARDANT HEALTH INC | COM | 40131M109 | — | 48,088 shares | $7,214,643 |
| CURTISS WRIGHT CORP | COM | 231561101 | — | 9,336 shares | $7,074,447 |
| KYMERA THERAPEUTICS INC | COM | 501575104 | — | 60,674 shares | $6,957,488 |
| STUBHUB HLDGS INC | CL A | 86384P109 | CALL | 5,247 shares | $6,752,889 |
| INTUITIVE SURGICAL INC | COM NEW | 46120E602 | — | 16,853 shares | $6,702,101 |
| CIENA CORP | COM NEW | 171779309 | — | 13,381 shares | $6,564,183 |
| SITIME CORP | COM | 82982T106 | — | 8,751 shares | $6,524,396 |
| TWIST BIOSCIENCE CORP | COM | 90184D100 | — | 62,903 shares | $6,471,461 |
| THE REALREAL INC | COM | 88339P101 | — | 548,764 shares | $6,469,928 |
| ELI LILLY & CO | COM | 532457108 | — | 5,316 shares | $6,376,170 |
| ISHARES TR | EXPANDED TECH | 464287515 | PUT | 687 shares | $6,224,220 |
| BWX TECHNOLOGIES INC | COM | 05605H100 | — | 31,507 shares | $6,132,838 |
| COGENT BIOSCIENCES INC | COM | 19240Q201 | — | 158,423 shares | $6,130,970 |
| AMAZON COM INC | COM | 023135106 | — | 25,672 shares | $6,118,664 |
| BBB FOODS INC | CL A COM | G0896C103 | — | 145,848 shares | $6,077,486 |
| INTEL CORP | COM | 458140100 | — | 43,362 shares | $6,054,636 |
| AXOGEN INC | COM | 05463X106 | — | 128,929 shares | $5,955,231 |
| NOKIA CORP | SPONSORED ADR | 654902204 | — | 437,198 shares | $5,805,989 |
| MICRON TECHNOLOGY INC | COM | 595112103 | PUT | 49 shares | $5,655,139 |
| VANECK ETF TRUST | SEMICONDUCTR ETF | 92189F676 | PUT | 86 shares | $5,640,654 |
| ORUKA THERAPEUTICS INC | COM | 687604108 | — | 58,293 shares | $5,547,745 |
| TTM TECHNOLOGIES INC | COM | 87305R109 | — | 29,147 shares | $5,451,072 |
| ECHOSTAR CORP | CL A | 278768106 | — | 52,483 shares | $5,327,025 |
| BRITISH AMERN TOB PLC | SPONSORED ADR | 110448107 | CALL | 820 shares | $5,064,320 |
| ISHARES BITCOIN TRUST ETF | SHS BEN INT | 46438F101 | PUT | 1,511 shares | $5,030,119 |
| CHARLES RIV LABS INTL INC | COM | 159864107 | — | 22,151 shares | $5,023,625 |
| ALKERMES PLC | SHS | G01767105 | CALL | 933 shares | $4,888,920 |
| ACM RESH INC | COM CL A | 00108J109 | — | 36,725 shares | $4,660,035 |
| ROIVANT SCIENCES LTD | SHS | G76279101 | — | 126,376 shares | $4,472,447 |
| VISHAY PRECISION GROUP INC | COM | 92835K103 | — | 29,824 shares | $4,470,916 |
| MERCADOLIBRE INC | COM | 58733R102 | — | 2,633 shares | $4,469,228 |
| PROTAGONIST THERAPEUTICS INC | COM | 74366E102 | — | 36,256 shares | $4,444,260 |
| GUARDANT HEALTH INC | COM | 40131M109 | — | 29,281 shares | $4,393,028 |
| REDDIT INC | CL A | 75734B100 | — | 25,066 shares | $4,350,956 |
| SEMTECH CORP | COM | 816850101 | — | 26,837 shares | $4,343,568 |
| APPFOLIO INC | COM CL A | 03783C100 | — | 26,862 shares | $4,307,322 |
| MARVELL TECHNOLOGY INC | COM | 573874104 | — | 14,409 shares | $4,292,297 |
| ROCKET LAB CORP | COM | 773121108 | — | 41,950 shares | $4,264,218 |
| ECHOSTAR CORP | CL A | 278768106 | CALL | 420 shares | $4,263,000 |
| WESTERN DIGITAL CORP | COM | 958102105 | — | 6,572 shares | $4,197,668 |
| FIVE BELOW INC | COM | 33829M101 | — | 23,293 shares | $4,187,848 |
| ASCENDIS PHARMA A/S | ORD SHS | K08588103 | — | 15,412 shares | $4,110,689 |
| REVOLUTION MEDICINES INC | COM | 76155X100 | — | 21,862 shares | $4,094,315 |
| ISHARES TR | EXPANDED TECH | 464287515 | PUT | 446 shares | $4,040,760 |
| DIANTHUS THERAPEUTICS INC | COM | 252828108 | — | 41,174 shares | $4,013,642 |
| ROUNDHILL ETF TRUST | MEMORY ETF | 77926X320 | PUT | 530 shares | $3,914,050 |
| AXSOME THERAPEUTICS INC. | COM | 05464T104 | — | 15,923 shares | $3,897,473 |