Atika Capital Management LLC

In its 13F for Q2 2024 (holdings as of June 30, 2024, filed August 13, 2024), Atika Capital Management LLC reported 75 stock positions worth $862.5 million. Its top holding was Nvidia (NVDA) at 8.3% of the portfolio, followed by Microsoft (MSFT, 5.1%) and Amazon.com (AMZN, 3.6%). Compared with Q1 2024, it opened 21 new positions, sold out of 25, added to 17 and reduced 32. The biggest buy was Nvidia (NVDA, shares +37%) and the biggest sale an exit from Shockwave Medical (SWAV).

Most Recent 13F
Q2 2026
Location
NEW YORK, NY
CIK
0001599731
Portfolio Value
$862.5M (Q2 2024)
SEC Filing
0001214659-24-014277 ↗ filed Aug 13, 2024

Holdings Value

0$500.0M$1.0B$1.5B Q1 2024: $891.5M Q1 2024 Q2 2024: $862.5M $862.5M Q2 2024 Q3 2024: $935.1M Q3 2024 Q4 2024: $772.3M Q4 2024 Q1 2025: $651.3M Q1 2025 Q2 2025: $957.3M Q2 2025 Q3 2025: $1.2B Q3 2025 Q4 2025: $718.1M Q4 2025 Q1 2026: $633.6M Q1 2026 Q2 2026: $1.0B Q2 2026

Holdings 75 stocks · $862.5M

NVDA Nvidia Corp. 8.26% 577,000 $71.3M Add +37.4%
MSFT Microsoft Corp. 5.05% 97,500 $43.6M Add +12.7%
AMZN Amazon.com Inc. 3.58% 160,000 $30.9M Add +15.1%
VRT Vertiv Holdings Co. Class A 3.53% 352,100 $30.5M Reduce -1.9%
MELI MercadoLibre Inc. 3.52% 18,490 $30.4M Add +19.4%
LLY Eli Lilly & Co. 3.32% 31,650 $28.7M Add +5.5%
GKOS Glaukos Corp. 3.29% 240,000 $28.4M Add +37.1%
RXST Rxsight Inc. 2.81% 402,600 $24.2M Reduce -2.8%
ISRG Intuitive Surgical Inc. 2.74% 53,200 $23.7M Reduce -2.6%
META Meta Platforms Inc. Class A 2.57% 44,000 $22.2M Add +7.3%
INSP Inspire Medical Systems Inc. 2.53% 163,000 $21.8M Add +25.6%
SPOT Spotify Technology SA 2.15% 59,000 $18.5M New
CYBR Cyberark Software Ltd./Israel 2.09% 66,000 $18.0M Add +46.7%
ANET Arista Networks Inc. 2.05% 50,400 $17.7M Add +4.6%
S Sentinelone Inc. Class A 1.82% 747,000 $15.7M Reduce -6.6%
GE General Electric filed as GE AEROSPACE 1.70% 92,000 $14.6M Add +27.8%
APPF Appfolio Inc. Class A 1.67% 59,000 $14.4M Reduce -14.5%
MLM Martin Marietta Materials 1.67% 26,600 $14.4M Reduce -3.3%
TSM Taiwan Semiconductor-SP ADR 1.60% 79,500 $13.8M New
CEG Constellation Energy 1.52% 65,500 $13.1M New
ARM Arm Holdings PLC-ADR 1.50% 79,000 $12.9M New
AAPL Apple Inc. 1.47% 60,000 $12.6M New
SHW The Sherwin-Williams Co. 1.40% 40,500 $12.1M Reduce -3.6%
VST Vistra Corp. 1.40% 140,000 $12.0M Reduce -21.4%
FSLR First Solar Inc. 1.25% 48,000 $10.8M New
MRK Merck & Co. Inc. 1.19% 83,000 $10.3M Reduce -27.2%
BWXT BWX Technologies Inc. 1.18% 107,400 $10.2M Reduce -28.9%
ARGX Argenx SE - ADR 1.18% 23,595 $10.1M Reduce -11.6%
ADBE Adobe Inc. 1.16% 18,000 $10.0M No change
REGN Regeneron Pharmaceuticals 1.16% 9,500 $10.0M Add +8.0%
DXCM Dexcom Inc. 1.14% 87,000 $9.9M Reduce -15.5%
HUBS HubSpot Inc. 1.13% 16,500 $9.7M New
NVO Novo-Nordisk A/S-Spons ADR 1.13% 68,000 $9.7M Reduce -32.3%
DDOG Datadog Inc. Class A 1.11% 74,000 $9.6M New
ABNB Airbnb Inc. Class A 1.08% 61,700 $9.4M Reduce -18.8%
UTHR United Therapeutics Corp. 1.07% 29,000 $9.2M New
EXAS Exact Sciences Corp. 1.03% 211,120 $8.9M Reduce -1.8%
PWR Quanta Services Inc. 1.03% 35,000 $8.9M Reduce -25.5%
FCX Freeport-McMoran Inc. 0.99% 175,500 $8.5M Reduce -45.2%
ELF Elf Beauty Inc. 0.98% 40,000 $8.4M No change
CNM Core & Main Inc. Class A 0.94% 165,000 $8.1M Reduce -37.3%
TW Tradeweb Markets Inc. Class A 0.91% 73,808 $7.8M Reduce -17.7%
BSX Boston Scientific Corp. 0.90% 101,000 $7.8M New
MDB Mongodb Inc. 0.88% 30,500 $7.6M No change
NET Cloudflare Inc. Class A 0.86% 89,500 $7.4M Reduce -38.3%
SG Sweetgreen Inc. Class A 0.82% 235,000 $7.1M New
THC Tenet Healthcare Corp. 0.80% 52,000 $6.9M New
DASH DoorDash Inc. Class A 0.79% 63,000 $6.9M Reduce -16.0%
ITCI Intra-Cellular Therapies Inc. 0.77% 97,500 $6.7M Reduce -7.1%
DYN Dyne Therapeutics Inc. 0.74% 181,500 $6.4M Add +3.7%
NBIX Neurocrine Biosciences Inc. 0.71% 44,500 $6.1M Reduce -23.3%
VRTX Vertex Pharmaceuticals Inc. 0.71% 13,000 $6.1M New
ALNY Alnylam Pharmaceuticals Inc. 0.69% 24,500 $6.0M New
ASML ASML Holding NV-NY Reg SHS 0.68% 5,700 $5.8M New
FERG Ferguson Jersey Ltd. 0.66% 29,300 $5.7M No change
TBBB BBB Foods Inc. Class A 0.62% 225,000 $5.4M Add +46.1%
BECN Beacon Roofing Supply Inc. 0.59% 56,500 $5.1M Add +88.3%
XENE Xenon Pharmaceuticals Inc. 0.56% 124,000 $4.8M Add +1.6%
ENPH Enphase Energy Inc. 0.51% 44,000 $4.4M No change
ROIV Roivant Sciences Ltd. 0.49% 400,000 $4.2M Reduce -25.2%
MNDY Monday.com Ltd. 0.47% 17,000 $4.1M Reduce -73.0%
AXSM Axsome Therapeutics Inc. 0.46% 49,000 $3.9M Reduce -27.9%
GTLB Gitlab Inc. Class A 0.45% 78,000 $3.9M New
TMDX Transmedics Group Inc. 0.42% 24,000 $3.6M New
NTRA Natera Inc. 0.38% 30,010 $3.2M New
ELAN Elanco Animal Health Inc. 0.34% 203,985 $2.9M Reduce -52.3%
KYMR Kymera Therapeutics Inc. 0.32% 92,000 $2.7M Reduce -9.8%
DUOL Duolingo 0.32% 13,068 $2.7M Reduce -66.5%
INSM Insmed Inc. 0.28% 36,000 $2.4M New
ABVX Abivax SA-ADR 0.26% 170,637 $2.3M Add +241.3%
COHR Coherent Corp. 0.18% 21,000 $1.5M Reduce -82.5%
CATX Perspective Therapeutics Inc. 0.16% 142,499 $1.4M New
RH RH 0.11% 4,000 $978K Reduce -77.1%
IMNM Immunome Inc. 0.10% 74,000 $895K Reduce -76.5%
RIVN Rivian Automotive Inc. Class A 0.03% 20,000 $268K New

Options reported separately and not counted above: QQQ puts ($82.4M), SPOT calls ($22.6M), TREX puts ($7.4M), XBI puts ($6.7M), URA calls ($5.8M), SBUX calls ($5.6M), MRNA puts ($4.8M), BBIO calls ($4.4M), S calls ($4.2M), P puts ($3.2M), MPT puts ($2.6M), RPD puts ($2.2M), and 4 more.

Portfolio Sells Q1 2024 → Q2 2024

SWAV Shockwave Medical Inc. Sold out 0.00% −4.18
INTC Intel Corp. Sold out 0.00% −1.59
AMD Advanced Micro Devices Sold out 0.00% −1.34
ALPN Alpine Immune Sciences Inc. Sold out 0.00% −1.14
MNDY Monday.com Ltd. Reduce -73.0% 0.47% −1.12
CELH Celsius Holdings Inc. Sold out 0.00% −1.12
CRWD CrowdStrike Holdings Inc. Class A Sold out 0.00% −0.88
PEN Penumbra Inc. Sold out 0.00% −0.83
ASND Ascendis Pharma A/S Sold out 0.00% −0.82
MRVL Marvell Technology Inc. Sold out 0.00% −0.80
IMNM Immunome Inc. Reduce -76.5% 0.10% −0.77
CNM Core & Main Inc. Class A Reduce -37.3% 0.94% −0.75
NET Cloudflare Inc. Class A Reduce -38.3% 0.86% −0.72
FCX Freeport-McMoran Inc. Reduce -45.2% 0.99% −0.70
DUOL Duolingo Reduce -66.5% 0.32% −0.65
SDRL Seadrill Limited Sold out 0.00% −0.65
COHR Coherent Corp. Reduce -82.5% 0.18% −0.64
EXAS Exact Sciences Corp. Reduce -1.8% 1.03% −0.63
CP Canadian Pacific Kansas City Sold out 0.00% −0.62
IMVT Immunovant Inc. Sold out 0.00% −0.58
RH RH Reduce -77.1% 0.11% −0.57
FUSN Fusion Pharmaceuticals Inc. Sold out 0.00% −0.56
RBLX Roblox Corp. Class A Sold out 0.00% −0.56
BWXT BWX Technologies Inc. Reduce -28.9% 1.18% −0.56
CYTK Cytokinetics Inc. Sold out 0.00% −0.55
TOST Toast Inc. Class A Sold out 0.00% −0.50
MRK Merck & Co. Inc. Reduce -27.2% 1.19% −0.50
DXCM Dexcom Inc. Reduce -15.5% 1.14% −0.46
ELAN Elanco Animal Health Inc. Reduce -52.3% 0.34% −0.44
OSCR Oscar Health Inc. Class A Sold out 0.00% −0.42
CRSP Crispr Therapeutics AG Sold out 0.00% −0.37
DASH DoorDash Inc. Class A Reduce -16.0% 0.79% −0.36
PWR Quanta Services Inc. Reduce -25.5% 1.03% −0.34
NVO Novo-Nordisk A/S-Spons ADR Reduce -32.3% 1.13% −0.32
FTNT Fortinet Inc. Sold out 0.00% −0.32
ABNB Airbnb Inc. Class A Reduce -18.8% 1.08% −0.32
TAST Carrols Restaurant Group Inc. Sold out 0.00% −0.31
HCP Hashicorp Inc. Class A Sold out 0.00% −0.29
JANX Janux Therapeutics Inc. Sold out 0.00% −0.27
S Sentinelone Inc. Class A Reduce -6.6% 1.82% −0.27
APPF Appfolio Inc. Class A Reduce -14.5% 1.67% −0.24
SHW The Sherwin-Williams Co. Reduce -3.6% 1.40% −0.23
BHVN Biohaven Ltd. Sold out 0.00% −0.23
MLM Martin Marietta Materials Reduce -3.3% 1.67% −0.22
LYV Live Nation Entertainment Inc. Sold out 0.00% −0.20
NBIX Neurocrine Biosciences Inc. Reduce -23.3% 0.71% −0.19
SILK Silk Road Medical Inc. Sold out 0.00% −0.17
AXSM Axsome Therapeutics Inc. Reduce -27.9% 0.46% −0.15
ROIV Roivant Sciences Ltd. Reduce -25.2% 0.49% −0.14
KYMR Kymera Therapeutics Inc. Reduce -9.8% 0.32% −0.14

Portfolio Buys Q1 2024 → Q2 2024

NVDA Nvidia Corp. Add +37.4% 8.26% +4.01
SPOT Spotify Technology SA New 2.15% +2.15
TSM Taiwan Semiconductor-SP ADR New 1.60% +1.60
CEG Constellation Energy New 1.52% +1.52
ARM Arm Holdings PLC-ADR New 1.50% +1.50
AAPL Apple Inc. New 1.47% +1.47
GKOS Glaukos Corp. Add +37.1% 3.29% +1.44
FSLR First Solar Inc. New 1.25% +1.25
HUBS HubSpot Inc. New 1.13% +1.13
DDOG Datadog Inc. Class A New 1.11% +1.11
UTHR United Therapeutics Corp. New 1.07% +1.07
MSFT Microsoft Corp. Add +12.7% 5.05% +0.97
BSX Boston Scientific Corp. New 0.90% +0.90
MELI MercadoLibre Inc. Add +19.4% 3.52% +0.90
SG Sweetgreen Inc. Class A New 0.82% +0.82
THC Tenet Healthcare Corp. New 0.80% +0.80
AMZN Amazon.com Inc. Add +15.1% 3.58% +0.77
CYBR Cyberark Software Ltd./Israel Add +46.7% 2.09% +0.75
VRTX Vertex Pharmaceuticals Inc. New 0.71% +0.71
LLY Eli Lilly & Co. Add +5.5% 3.32% +0.70
ALNY Alnylam Pharmaceuticals Inc. New 0.69% +0.69
ASML ASML Holding NV-NY Reg SHS New 0.68% +0.68
ANET Arista Networks Inc. Add +4.6% 2.05% +0.48
GTLB Gitlab Inc. Class A New 0.45% +0.45
TMDX Transmedics Group Inc. New 0.42% +0.42
NTRA Natera Inc. New 0.38% +0.38
META Meta Platforms Inc. Class A Add +7.3% 2.57% +0.34
INSM Insmed Inc. New 0.28% +0.28
GE General Electric Add +27.8% 1.70% +0.28
BECN Beacon Roofing Supply Inc. Add +88.3% 0.59% +0.26
TBBB BBB Foods Inc. Class A Add +46.1% 0.62% +0.21
REGN Regeneron Pharmaceuticals Add +8.0% 1.16% +0.21
DYN Dyne Therapeutics Inc. Add +3.7% 0.74% +0.19
ABVX Abivax SA-ADR Add +241.3% 0.26% +0.18
CATX Perspective Therapeutics Inc. New 0.16% +0.16
RIVN Rivian Automotive Inc. Class A New 0.03% +0.03
XENE Xenon Pharmaceuticals Inc. Add +1.6% 0.56% −0.03
INSP Inspire Medical Systems Inc. Add +25.6% 2.53% −0.60

Options Activity Q1 2024 → Q2 2024

QQQ Invesco QQQ Trust Series 1 put New 1,720 $82.4M
IWL iShares Russell Top 200 ETF call Sold out 3,500 $73.6Mbefore exit
SPOT Spotify Technology SA call New 720 $22.6M
ESTA Establishment Labs Holdings put Sold out 2,409 $12.3Mbefore exit
EXAS Exact Sciences Corp. call Sold out 1,600 $11.0Mbefore exit
SPHR Sphere Entertainment Co. call Sold out 2,000 $9.8Mbefore exit
TREX Trex Company Inc. put New 1,000 $7.4M
XBI SS SPDR S&P Biotech ETF put New 720 $6.7M
TSLA Tesla Inc. put Sold out 330 $5.8Mbefore exit
URA Global X Uranium ETF call New 2,000 $5.8M
SBUX Starbucks Corp. call New 720 $5.6M
MRNA Moderna Inc. put New 400 $4.8M
S Sentinelone Inc. Class A call New 2,000 $4.2M
P Everpure Inc. Class A put New 500 $3.2M
RPD RAPID7 Inc. put New 515 $2.2M
FIVN FIVE9 Inc. call New 472 $2.1M
ONON On Holding AG Class A put New 500 $1.9M
ATRC Atricure Inc. put New 580 $1.3M
CALY Callaway Golf Company call Sold out 701 $1.1Mbefore exit

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 62$1.0BVRT, STX, AMD, LLY, INTC
Q1 2026 52$633.6MVRT, LLY, ISRG, ECHO, STX
Q4 2025 64$718.1MVRT, LLY, ISRG, TEVA, SHOP
Q3 2025 76$1.2BVRT, AMZN, MSFT, SPOT, MLM
Q2 2025 57$957.3MAMZN, VRT, MSFT, SPOT, MLM
Q1 2025 53$651.3MAMZN, MSFT, VRT, SPOT, LLY
Q4 2024 73$772.3MMSFT, VRT, AMZN, GKOS, INSP
Q3 2024 74$935.1MNVDA, MSFT, MELI, AMZN, VRT
Q2 2024 75$862.5MNVDA, MSFT, AMZN, VRT, MELI
Q1 2024 79$891.5MNVDA, SWAV, MSFT, VRT, INSP