Atika Capital Management LLC
13F Reported Value
ⓘ$796.4M
incl. option notional
Equity Holdings
ⓘ$633.6M
Option Notional
ⓘ$162.7M
$106.4M puts / $56.4M calls
Holdings
60
Latest Filing
2026-03-31
Filing Quarter
Q1 2026
Portfolio Overview
Atika Capital Management LLC disclosed 60 positions worth $796.4M in its Form 13F-HR for Q1 2026 — $633.6M in common stock plus $162.7M of put/call option positions (reported at underlying notional value, not premium at risk), led by $VRT (Vertiv Holdings Co) at 26.3% of the equity portfolio. During the quarter the fund opened 18 new positions and exited 36 and a full exit from $SHOP. The portfolio is most concentrated in Technology (43.6% of disclosed assets). All figures are sourced directly from Atika Capital Management LLC’s Form 13F-HR filing with the SEC under CIK 1599731.
AI Fund Analysis
ConcentratingSector Allocation
AUM History
Top Equity Holdings by Value
Option Positions
13F rules report options at the value of the underlying shares (notional) — not the premium paid or capital at risk. Shown separately from the equity sleeve above.
Quarterly Activity — Q1 2026
Click any card to unlockTop Holdings
- 82.7#22
Quality
$166.9M666,100 sh SPDR SERIES TRUST PUT
—Quality
$54.0M4,225 sh- 89.3#2
Quality
$37.8M41,100 sh VANECK ETF TRUST PUT
—Quality
$27.6M720 sh- 81.4
Quality
$26.4M57,216 sh ISHARES TR PUT
—Quality
$24.8M1,000 sh- 29.5
Quality
$21.3M182,000 sh - —
Quality
$21.0M53,500 sh - 59.7
Quality
$18.5M57,636 sh - 29.5
Quality
$18.5M1,583 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
 Vertiv Holdings Co$VRT | 82.7#22 | $166.9M | 666,100 |
| SPDR SERIES TRUST PUT | — | $54.0M | 4,225 |
 ELI LILLY & Co$LLY | 89.3#2 | $37.8M | 41,100 |
| VANECK ETF TRUST PUT | — | $27.6M | 720 |
 INTUITIVE SURGICAL INC$ISRG | 81.4 | $26.4M | 57,216 |
| ISHARES TR PUT | — | $24.8M | 1,000 |
 EchoStar CORP$ECHO | 29.5 | $21.3M | 182,000 |
 Seagate Technology Holdings plc$STX | — | $21.0M | 53,500 |
 MASTEC INC$MTZ | 59.7 | $18.5M | 57,636 |
| EchoStar CORP$ECHOCALL | 29.5 | $18.5M | 1,583 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of Atika Capital Management LLC's 60 positions.
Showing top 10 of 60 holdings.
Sector Allocation
Technology
$276.4M
Healthcare
$186.9M
Industrials
$46.0M
Consumer Discretionary
$42.0M
Communication Services
$38.6M
Energy
$18.5M
Utilities
$12.2M
Other
$7.3M
Full Holdings — Atika Capital Management LLC (Q1 2026)
All 60 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | $VRT | Vertiv Holdings Co | $166.9M | 26.3% | +5% | 82.7 |
| 2 | — | SPDR SERIES TRUST | $54.0M | — | -56% | — |
| 3 | $LLY | ELI LILLY & Co | $37.8M | 6.0% | +0% | 89.3 |
| 4 | — | VANECK ETF TRUST | $27.6M | — | NEW | — |
| 5 | $ISRG | INTUITIVE SURGICAL INC | $26.4M | 4.2% | +0% | 81.4 |
| 6 | — | ISHARES TR | $24.8M | — | +10% | — |
| 7 | $ECHO | EchoStar CORP | $21.3M | 3.4% | +46% | 29.5 |
| 8 | $STX | Seagate Technology Holdings plc | $21.0M | 3.3% | +3% | — |
| 9 | $MTZ | MASTEC INC | $18.5M | 2.9% | +3% | 59.7 |
| 10 | $ECHOCALL | EchoStar CORP | $18.5M | — | -60% | 29.5 |
| 11 |  $NFLX | NETFLIX INC | $17.3M | 2.7% | +0% | 86.7 |
| 12 |  $CIEN | CIENA CORP | $16.9M | 2.7% | -27% | 70.7 |
| 13 |  $BWXT | BWX Technologies, Inc. | $16.9M | 2.7% | -24% | 68 |
| 14 | $NFLXCALL | NETFLIX INC | $15.9M | — | NEW | 86.7 |
| 15 |  $TERN | Terns Pharmaceuticals, Inc. | $15.8M | 2.5% | -7% | — |
| 16 |  $TEVA | TEVA PHARMACEUTICAL INDUSTRIES LTD | $14.4M | 2.3% | -33% | — |
| 17 | — | VANECK ETF TRUST | $13.8M | — | NEW | — |
| 18 |  $NET | Cloudflare, Inc. | $13.4M | 2.1% | +18% | 52.6 |
| 19 |  $GOOGL | Alphabet Inc. | $12.4M | 2.0% | +2% | 80.2 |
| 20 |  $COGT | Cogent Biosciences, Inc. | $11.3M | 1.8% | -42% | — |
| 21 |  $ORKA | Oruka Therapeutics, Inc. | $11.3M | 1.8% | NEW | — |
| 22 |  $DNTH | Dianthus Therapeutics, Inc. /DE/ | $10.8M | 1.7% | -4% | 26.8 |
| 23 |  $WDC | WESTERN DIGITAL CORP | $10.2M | 1.6% | NEW | 76.8 |
| 24 |  $AMZN | AMAZON COM INC | $9.1M | 1.4% | -45% | 74.6 |
| 25 |  $TTMI | TTM TECHNOLOGIES INC | $9.1M | 1.4% | -8% | 59 |
| 26 |  $FIVE | FIVE BELOW, INC | $9.0M | 1.4% | -30% | 66.1 |
| 27 |  $CW | CURTISS WRIGHT CORP | $8.9M | 1.4% | +32% | 70.7 |
| 28 |  $GH | Guardant Health, Inc. | $8.4M | 1.3% | -16% | 36.1 |
| 29 |  $MELI | MERCADOLIBRE INC | $7.8M | 1.2% | -24% | 77.5 |
| 30 |  $APPF | APPFOLIO INC | $7.5M | 1.2% | +7% | 75.5 |
| 31 | — | VANECK ETF TRUST | $7.3M | 1.2% | NEW | — |
| 32 |  $UTHR | UNITED THERAPEUTICS Corp | $7.3M | 1.2% | NEW | 80.1 |
| 33 |  $KRMN | Karman Holdings Inc. | $7.2M | 1.1% | NEW | 56.1 |
| 34 |  $FERG | Ferguson Enterprises Inc. /DE/ | $6.8M | 1.1% | +0% | 58.9 |
| 35 |  $PTGX | Protagonist Therapeutics, Inc | $6.5M | 1.0% | -28% | 24.8 |
| 36 |  $CLH | CLEAN HARBORS INC | $6.3M | 1.0% | +629% | 56.3 |
| 37 |  $TLN | Talen Energy Corp | $5.9M | 0.9% | -56% | 66.5 |
| 38 |  $IMNM | Immunome Inc. | $5.7M | 0.9% | -21% | 5.8 |
| 39 |  $META | Meta Platforms, Inc. | $5.7M | 0.9% | NEW | 80.9 |
| 40 |  $DBVT | DBV Technologies S.A. | $5.7M | 0.9% | +31% | 6.1 |
| 41 |  $RKLB | Rocket Lab Corp | $5.5M | 0.9% | +38% | 37.2 |
| 42 |  $HEI | HEICO CORP | $5.3M | 0.8% | -27% | 79.2 |
| 43 |  $QXO | QXO, Inc. | $5.1M | 0.8% | -37% | 53.5 |
| 44 |  $SITM | SITIME Corp | $5.1M | 0.8% | NEW | 44.6 |
| 45 |  $INTCCALL | INTEL CORP | $4.4M | — | NEW | 41.5 |
| 46 |  $GE | GENERAL ELECTRIC CO | $4.4M | 0.7% | -40% | 74.8 |
| 47 |  $ASND | Ascendis Pharma A/S | $4.4M | 0.7% | -7% | 41.5 |
| 48 |  $REAL | TheRealReal, Inc. | $4.1M | 0.7% | -20% | 54.2 |
| 49 | $TERNCALL | Terns Pharmaceuticals, Inc. | $3.8M | — | NEW | — |
| 50 |  $LASR | NLIGHT, INC. | $3.8M | 0.6% | NEW | 41.3 |
| 51 |  $XENE | Xenon Pharmaceuticals Inc. | $3.5M | 0.6% | -35% | 12.9 |
| 52 |  $TBBB | BBB FOODS INC | $3.4M | 0.5% | -33% | — |
| 53 |  $MAZE | Maze Therapeutics, Inc. | $3.3M | 0.5% | NEW | 19.7 |
| 54 |  $ABVX | Abivax S.A. | $3.2M | 0.5% | -48% | — |
| 55 |  $ACHC | Acadia Healthcare Company, Inc. | $2.9M | 0.5% | NEW | 49.3 |
| 56 |  $WRBY | Warby Parker Inc. | $2.8M | 0.5% | -46% | 51.2 |
| 57 |  $KRYS | Krystal Biotech, Inc. | $2.7M | 0.4% | NEW | 75.9 |
| 58 |  $BBIO | BridgeBio Pharma, Inc. | $2.6M | 0.4% | NEW | 31.7 |
| 59 |  $HUT | Hut 8 Corp. | $2.3M | 0.4% | NEW | 31.4 |
| 60 |  $HEI.A | HEICO CORP | $2.2M | 0.3% | NEW | 79.2 |
New Positions (18)
$NFLXCALL NETFLIX INC$15.9M$ORKA Oruka Therapeutics, Inc.$11.3M$WDC WESTERN DIGITAL CORP$10.2M$UTHR UNITED THERAPEUTICS Corp$7.3M$KRMN Karman Holdings Inc.$7.2M$META Meta Platforms, Inc.$5.7M$SITM SITIME Corp$5.1M$INTCCALL INTEL CORP$4.4M$TERNCALL Terns Pharmaceuticals, Inc.$3.8M$LASR NLIGHT, INC.$3.8M$MAZE Maze Therapeutics, Inc.$3.3M$ACHC Acadia Healthcare Company, Inc.$2.9MExited Positions (36)
$SHOP SHOPIFY INC.
$MDGL MADRIGAL PHARMACEUTICALS, INC.
$TSLA Tesla, Inc.
$INSM INSMED Inc
$DASH DoorDash, Inc.
$AXSM Axsome Therapeutics, Inc.
$MDB MongoDB, Inc.$TEVACALL TEVA PHARMACEUTICAL INDUSTRIES LTD
$LMND Lemonade, Inc.
$CSL CARLISLE COMPANIES INC
$HOODPUT Robinhood Markets, Inc.
$EMBJ EMBRAER S.A.
$IBITPUT iShares Bitcoin Trust ETF
$ROKU ROKU, INC
$RH RHBrowse Top Institutional Investors
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