Atika Capital Management LLC's Q3 2022 13F: 17 new positions, 11 exits

Form 13F-HR for the quarter ended Sep 30, 2022 · filed Nov 14, 2022 · 61 reported positions · accession 0001214659-22-013545

What changed this quarter

Atika Capital Management LLC's changes in reported equity positions, Q3 2022
Activity Security Weight before Weight now Change Shares Shares %
Reduced SHOCKWAVE MED INC (SWAV) 6.9% 4.2% −2.7 pts −142K sh −52%
Exited LULULEMON ATHLETICA INC (LULU) 3.0% — −3.0 pts −83,700 sh −100%
New T-MOBILE US INC (TMUS) — 2.7% +2.7 pts +178K sh new
New POOL CORP (POOL) — 2.6% +2.6 pts +72,000 sh new
Reduced SEAGEN INC (SGEN) 6.5% 1.8% −4.7 pts −166K sh −59%
Reduced AMAZON COM INC (AMZN) 4.9% 2.2% −2.7 pts −180K sh −51%
New DENBURY INC (DEN) — 2.0% +2.0 pts +210K sh new
New BILL COM HLDGS INC (BILL) — 1.9% +1.9 pts +130K sh new
Exited CENTENE CORP DEL (CNC) 1.9% — −1.9 pts −176K sh −100%
Increased CALIX INC (CALX) 2.3% 5.5% +3.2 pts +275K sh +52%
Exited DATADOG INC (DDOG) 1.7% — −1.7 pts −138K sh −100%
Exited ULTA BEAUTY INC (ULTA) 1.7% — −1.7 pts −34,000 sh −100%
New INTUITIVE SURGICAL INC (ISRG) — 1.6% +1.6 pts +77,500 sh new
New PENUMBRA INC (PEN) — 1.6% +1.6 pts +76,000 sh new
New PROCORE TECHNOLOGIES INC (PCOR) — 1.4% +1.4 pts +250K sh new
New NETFLIX INC (NFLX) — 1.3% +1.3 pts +49,000 sh new
New FERGUSON PLC NEW (FERG) — 1.1% +1.1 pts +97,000 sh new
Increased COMMSCOPE HLDG CO INC (VISN) 1.2% 2.7% +1.5 pts +1.04M sh +67%
Exited LILLY ELI & CO (LLY) 1.0% — −1.0 pts −24,000 sh −100%
Increased KARUNA THERAPEUTICS INC (KRTX) 0.9% 2.3% +1.4 pts +38,000 sh +72%
Reduced MICROSOFT CORP (MSFT) 2.8% 1.3% −1.5 pts −33,200 sh −40%
Increased ENOVIX CORPORATION (ENVX) 0.7% 2.1% +1.4 pts +419K sh +72%
Exited MONGODB INC (MDB) 0.9% — −0.9 pts −25,500 sh −100%
Increased FORTINET INC (FTNT) 0.8% 1.5% +0.7 pts +155K sh +135%
New BLOCK H & R INC (HRB) — 0.9% +0.9 pts +177K sh new
Reduced CROWDSTRIKE HLDGS INC (CRWD) 3.0% 1.7% −1.3 pts −45,000 sh −33%
Increased AIRBNB INC (ABNB) 0.3% 1.1% +0.8 pts +65,000 sh +217%
Exited CLASS ACCELERATION CORP (CLAS) 0.8% — −0.8 pts −600K sh −100%
Reduced EPAM SYS INC (EPAM) 1.9% 1.4% −0.6 pts −17,000 sh −34%
New SHERWIN WILLIAMS CO (SHW) — 0.7% +0.7 pts +29,000 sh new
Exited CHECK POINT SOFTWARE TECH LT (CHKP) 0.7% — −0.7 pts −42,000 sh −100%
Reduced CLEARFIELD INC (CLFD) 3.4% 4.3% +0.9 pts −54,994 sh −13%
Exited ALTIMMUNE INC (ALT) 0.6% — −0.6 pts −411K sh −100%
Increased ACADIA HEALTHCARE COMPANY IN (ACHC) 1.9% 2.5% +0.6 pts +70,730 sh +33%
Reduced PALO ALTO NETWORKS INC (PANW) 3.9% 2.7% −1.1 pts −33,000 sh −18%
Increased APELLIS PHARMACEUTICALS INC (APLS) 0.6% 1.4% +0.8 pts +76,500 sh +70%
Reduced JAZZ PHARMACEUTICALS PLC (JAZZ) 3.4% 2.0% −1.5 pts −39,000 sh −23%
Increased AXSOME THERAPEUTICS INC (AXSM) 0.8% 1.3% +0.6 pts +114K sh +76%
Increased INSPIRE MED SYS INC (INSP) 3.0% 3.1% 0.0 pts +25,802 sh +20%
New MERCADOLIBRE INC (MELI) — 0.5% +0.5 pts +5,500 sh new
New GUARDANT HEALTH INC (GH) — 0.5% +0.5 pts +80,000 sh new
Increased INTELLIA THERAPEUTICS INC (NTLA) 0.2% 0.6% +0.5 pts +76,500 sh +326%
New PLIANT THERAPEUTICS INC (PLRX) — 0.5% +0.5 pts +195K sh new
Reduced INTRA-CELLULAR THERAPIES INC (ITCI) 1.9% 0.9% −1.0 pts −85,100 sh −34%
Increased ZAI LAB LTD (ZLAB) 1.1% 1.4% +0.3 pts +112K sh +47%
Increased BWX TECHNOLOGIES INC (BWXT) 0.4% 0.7% +0.3 pts +66,370 sh +114%
Increased IMPINJ INC (PI) 2.3% 3.1% +0.8 pts +36,228 sh +12%
Increased PROCEPT BIOROBOTICS CORP (PRCT) 0.2% 0.6% +0.3 pts +62,787 sh +108%
Increased LIBERTY MEDIA CORP DEL (FWONK) 5.6% 4.8% −0.8 pts +44,500 sh +7%
Increased CLOUDFLARE INC (NET) 1.2% 1.6% +0.4 pts +43,500 sh +21%

The 50 largest of 68 changes, by size of the trade. Full holdings for this quarter.

Reported by the fund in its Form 13F filed with the SEC; holdings are as of the quarter-end report date and may have changed since. For informational purposes only — not investment advice or a recommendation to buy or sell any security. FilingExplorer is not affiliated with or endorsed by this fund. How this brief is compiled

† Security identifier (CUSIP) changed — read as one continuing position, not an exit and a new position:

  • JACOBS SOLUTIONS INC (J): 469814107 → 46982L108, 167K → 80,000 shares (share count changed with the identifier; not shown as a trade)

Top 10 positions — 36.8% of the equity book

Changes in the top 10 this quarter: CALX entered · PI entered · VISN entered · TMUS entered · SGEN left · AMZN left · JAZZ left · LULU left

# Security Weight before Weight now
1 CALIX INC (CALX) 2.3% 5.5% Entered the top 10
2 LIBERTY MEDIA CORP DEL (FWONK) 5.6% 4.8%
3 CLEARFIELD INC (CLFD) 3.4% 4.3%
4 SHOCKWAVE MED INC (SWAV) 6.9% 4.2%
5 ENPHASE ENERGY INC (ENPH) 3.2% 3.8%
6 INSPIRE MED SYS INC (INSP) 3.0% 3.1%
7 IMPINJ INC (PI) 2.3% 3.1% Entered the top 10
8 PALO ALTO NETWORKS INC (PANW) 3.9% 2.7%
9 COMMSCOPE HLDG CO INC (VISN) 1.2% 2.7% Entered the top 10
10 T-MOBILE US INC (TMUS) 0.0% 2.7% Entered the top 10
— SEAGEN INC (SGEN) 6.5% 1.8% Left the top 10
— AMAZON COM INC (AMZN) 4.9% 2.2% Left the top 10
— JAZZ PHARMACEUTICALS PLC (JAZZ) 3.4% 2.0% Left the top 10
— LULULEMON ATHLETICA INC (LULU) 3.0% 0.0% Left the top 10

Weights are each position's reported value as a share of the fund's reported equity positions (options and principal-amount holdings excluded).

Option positions (puts and calls)

Reported separately from the positions above. The value a 13F reports for an option is that of the underlying shares, not the option itself.

Activity Security Type Shares before Shares now Reported value
New ISHARES TR (HYG) Put 0 530K $37.8M
New INVESCO QQQ TR (QQQ) Put 0 110K $29.4M
Exited SPDR SER TR (XBI) Call 336K 0 $0
New ISHARES TR (IWM) Call 0 150K $24.7M
New LIVANOVA PLC (LIVN) Call 0 383K $19.5M
New COMMSCOPE HLDG CO INC (VISN) Call 0 2.03M $18.7M
New ISHARES TR (IWM) Put 0 109K $18M
New MEDICAL PPTYS TRUST INC (MPW) Put 0 1.45M $17.2M
New CASSAVA SCIENCES INC (SAVA) Call 0 3,900 $16.3M
New COINBASE GLOBAL INC (COIN) Put 0 250K $16.1M
Exited ISHARES TR (FXI) Call 400K 0 $0
New PINTEREST INC (PINS) Call 0 545K $12.7M
Exited SEAGEN INC (SGEN) Call 61,000 0 $0
Exited KRANESHARES TR (KWEB) Call 300K 0 $0
New ARK ETF TR (ARKK) Put 0 260K $9.81M
New COINBASE GLOBAL INC (COIN) Call 0 150K $9.67M
Exited ROKU INC (ROKU) Call 100K 0 $0
New SHOCKWAVE MED INC (SWAV) Call 0 28,000 $7.79M
Exited BATH & BODY WORKS INC (BBWI) Put 250K 0 $0
New PACKAGING CORP AMER (PKG) Put 0 50,000 $5.62M
Exited CERENCE INC (CRNC) Put 200K 0 $0
Increased GUARDANT HEALTH INC (GH) Call 100K 165K $8.9M
Exited THE AARONS COMPANY INC (AAN) Put 305K 0 $0
New CALIX INC (CALX) Call 0 70,000 $4.28M
New PLUG POWER INC (PLUG) Put 0 200K $4.2M