Atika Capital Management LLC's Q2 2023 13F: 21 new positions, 20 exits
Form 13F-HR for the quarter ended Jun 30, 2023 · filed Aug 11, 2023 · 70 reported positions · accession 0001214659-23-011035
What changed this quarter
| Activity | Security | Weight before | Weight now | Change | Shares | Shares % |
|---|---|---|---|---|---|---|
| New | EXACT SCIENCES CORP (EXAS) | — | 2.9% | +2.9 pts | +243K sh | new |
| New | TENET HEALTHCARE CORP (THC) | — | 2.6% | +2.6 pts | +254K sh | new |
| New | RXSIGHT INC (RXST) | — | 1.9% | +1.9 pts | +514K sh | new |
| Increased | DATADOG INC (DDOG) | 0.5% | 2.3% | +1.9 pts | +147K sh | +368% |
| New | FORTINET INC (FTNT) | — | 1.8% | +1.8 pts | +188K sh | new |
| New | GLAUKOS CORP (GKOS) | — | 1.6% | +1.6 pts | +183K sh | new |
| Exited | CATALENT INC (CTLT) | 1.6% | — | −1.6 pts | −151K sh | −100% |
| New | LILLY ELI & CO (LLY) | — | 1.5% | +1.5 pts | +25,500 sh | new |
| Increased | AMAZON COM INC (AMZN) | 0.1% | 1.5% | +1.5 pts | +90,000 sh | +2250% |
| Exited | ADVANCED MICRO DEVICES INC (AMD) | 1.4% | — | −1.4 pts | −93,000 sh | −100% |
| New | ADOBE SYSTEMS INCORPORATED (ADBE) | — | 1.4% | +1.4 pts | +22,500 sh | new |
| New | APPFOLIO INC (APPF) | — | 1.4% | +1.4 pts | +63,500 sh | new |
| Exited | RAPID7 INC (RPD) | 1.4% | — | −1.4 pts | −190K sh | −100% |
| Exited | TESLA INC (TSLA) | 1.3% | — | −1.3 pts | −41,000 sh | −100% |
| Exited | BLOCK INC (XYZ) | 1.3% | — | −1.3 pts | −120K sh | −100% |
| Reduced | TAIWAN SEMICONDUCTOR MFG LTD (TSM) | 1.8% | 0.3% | −1.5 pts | −101K sh | −81% |
| Exited | REGENERON PHARMACEUTICALS (REGN) | 1.2% | — | −1.2 pts | −9,690 sh | −100% |
| New | HCA HEALTHCARE INC (HCA) | — | 1.2% | +1.2 pts | +32,000 sh | new |
| New | CELSIUS HLDGS INC (CELH) | — | 1.2% | +1.2 pts | +63,000 sh | new |
| Exited | CORTEVA INC (CTVA) | 1.1% | — | −1.1 pts | −121K sh | −100% |
| New | MONDAY COM LTD (MNDY) | — | 1.1% | +1.1 pts | +49,000 sh | new |
| Reduced | CALIX INC (CALX) | 3.4% | 1.6% | −1.8 pts | −156K sh | −38% |
| Exited | TANDEM DIABETES CARE INC (TNDM) | 0.9% | — | −0.9 pts | −145K sh | −100% |
| New | ALBEMARLE CORP (ALB) | — | 0.8% | +0.8 pts | +28,150 sh | new |
| New | WOLFSPEED INC (WOLF) | — | 0.7% | +0.7 pts | +106K sh | new |
| Exited | ILLUMINA INC (ILMN) | 0.7% | — | −0.7 pts | −20,000 sh | −100% |
| New | AVIS BUDGET GROUP (CAR) | — | 0.7% | +0.7 pts | +24,400 sh | new |
| Reduced | COTY INC (COTY) | 2.0% | 0.9% | −1.1 pts | −453K sh | −43% |
| New | SOTERA HEALTH CO (SHC) | — | 0.7% | +0.7 pts | +295K sh | new |
| Exited | HASHICORP INC (HCP) | 0.7% | — | −0.7 pts | −151K sh | −100% |
| New | UNIVERSAL HLTH SVCS INC (UHS) | — | 0.7% | +0.7 pts | +34,000 sh | new |
| Exited | BLACKBAUD INC (BLKB) | 0.6% | — | −0.6 pts | −60,000 sh | −100% |
| Increased | KARUNA THERAPEUTICS INC (KRTX) | 1.2% | 1.8% | +0.6 pts | +22,725 sh | +54% |
| Reduced | MANCHESTER UTD PLC NEW (MANU) | 1.2% | 0.4% | −0.7 pts | −200K sh | −60% |
| Reduced | AVID TECHNOLOGY (AVID) | 1.1% | 0.1% | −1.0 pts | −191K sh | −87% |
| Exited | JAZZ PHARMACEUTICALS PLC (JAZZ) | 0.6% | — | −0.6 pts | −26,500 sh | −100% |
| Increased | PINTEREST INC (PINS) | 0.8% | 1.2% | +0.4 pts | +171K sh | +92% |
| Increased | SHERWIN WILLIAMS CO (SHW) | 1.7% | 2.2% | +0.5 pts | +17,500 sh | +36% |
| New | VERTIV HOLDINGS CO (VRT) | — | 0.5% | +0.5 pts | +174K sh | new |
| Increased | CLOUDFLARE INC (NET) | 1.6% | 1.9% | +0.3 pts | +65,500 sh | +40% |
| New | KBR INC (KBR) | — | 0.5% | +0.5 pts | +61,000 sh | new |
| Increased | SENTINELONE INC (S) | 1.2% | 1.4% | +0.2 pts | +255K sh | +54% |
| Exited | PROCORE TECHNOLOGIES INC (PCOR) | 0.5% | — | −0.5 pts | −47,500 sh | −100% |
| New | HEICO CORP NEW (HEIA) | — | 0.5% | +0.5 pts | +26,016 sh | new |
| Reduced | LIBERTY MEDIA CORP DEL (FWONK) | 4.8% | 3.4% | −1.4 pts | −48,000 sh | −12% |
| Exited | PLIANT THERAPEUTICS INC (PLRX) | 0.5% | — | −0.5 pts | −109K sh | −100% |
| Reduced | TRADEWEB MKTS INC (TW) | 2.0% | 0.9% | −1.0 pts | −51,000 sh | −32% |
| Reduced | META PLATFORMS INC (META) | 1.6% | 1.3% | −0.3 pts | −12,000 sh | −25% |
| Increased | PROTHENA CORP PLC (PRTA) | 0.4% | 0.8% | +0.5 pts | +48,922 sh | +101% |
| Exited | CYTOKINETICS INC (CYTK) | 0.4% | — | −0.4 pts | −75,063 sh | −100% |
The 50 largest of 86 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:
- CANADIAN PACIFIC KANSAS CITY (CP): 13645T100 → 13646K108, 70,000 → 99,500 shares (share count changed with the identifier; not shown as a trade)
Top 10 positions — 36.4% of the equity book
Changes in the top 10 this quarter: EXAS entered · THC entered · CALX left · RGEN left
| # | Security | Weight before | Weight now | |
|---|---|---|---|---|
| 1 | INSPIRE MED SYS INC (INSP) | 5.2% | 5.7% | |
| 2 | NVIDIA CORPORATION (NVDA) | 3.5% | 4.3% | |
| 3 | SHOCKWAVE MED INC (SWAV) | 4.0% | 4.2% | |
| 4 | MICROSOFT CORP (MSFT) | 3.9% | 4.1% | |
| 5 | IMPINJ INC (PI) | 7.7% | 4.1% | |
| 6 | LIBERTY MEDIA CORP DEL (FWONK) | 4.8% | 3.4% | |
| 7 | EXACT SCIENCES CORP (EXAS) | 0.0% | 2.9% | Entered the top 10 |
| 8 | TENET HEALTHCARE CORP (THC) | 0.0% | 2.6% | Entered the top 10 |
| 9 | INTUITIVE SURGICAL INC (ISRG) | 2.7% | 2.6% | |
| 10 | ENPHASE ENERGY INC (ENPH) | 4.0% | 2.5% | |
| — | CALIX INC (CALX) | 3.4% | 1.6% | Left the top 10 |
| — | REPLIGEN CORP (RGEN) | 2.4% | 1.6% | 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 | NVIDIA CORPORATION (NVDA) | Call | 0 | 175K | $74M |
| New | AMAZON COM INC (AMZN) | Call | 0 | 250K | $32.6M |
| New | ALPHABET INC (GOOGL) | Put | 0 | 200K | $24.2M |
| Exited | ISHARES TR (SOXX) | Put | 50,000 | 0 | $0 |
| New | FIVE9 INC (FIVN) | Call | 0 | 255K | $21M |
| New | ORACLE CORP (ORCL) | Call | 0 | 120K | $14.3M |
| New | ATLASSIAN CORPORATION (TEAM) | Put | 0 | 68,300 | $11.5M |
| New | SPDR SER TR (KRE) | Put | 0 | 150K | $6.12M |
| New | STAAR SURGICAL CO (STAA) | Put | 0 | 100K | $5.26M |
| New | CATALENT INC (CTLT) | Call | 0 | 100K | $4.34M |
| Exited | MEDICAL PPTYS TRUST INC (MPW) | Put | 500K | 0 | $0 |
| New | GLAUKOS CORP (GKOS) | Call | 0 | 56,700 | $4.04M |
| Exited | MANCHESTER UTD PLC NEW (MANU) | Call | 172K | 0 | $0 |
| New | VIKING THERAPEUTICS INC (VKTX) | Put | 0 | 150K | $2.43M |
| New | SOTERA HEALTH CO (SHC) | Call | 0 | 92,500 | $1.74M |
| Exited | BRIDGEBIO PHARMA INC (BBIO) | Call | 102K | 0 | $0 |
| Exited | FIRST REP BK SAN FRANCISCO C (FRCB) | Put | 100K | 0 | $0 |
| Exited | SILVERGATE CAP CORP (SICP) | Put | 175K | 0 | $0 |
| Exited | CAREDX INC (CDNA) | Put | 7,300 | 0 | $0 |