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ACM

Atika Capital Management Portfolio holdings

AUM $796M
1-Year Est. Return 167.57%
This Fund
S&P 500
This Quarter Est. Return
-4%
1 Year Est. Return
+167.57%
3 Year Est. Return
+553.47%
5 Year Est. Return
+1,283.26%
10 Year Est. Return
+44,203.78%
AUM
$711M
AUM Growth
-$230M
Cap. Flow
-$231M
Cap. Flow %
-32.53%
Top 10 Hldgs %
46.66%
Holding
104
New
20
Increased
21
Reduced
18
Closed
42

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$28.9M
2
VRT icon
Vertiv
VRT
+$14.3M
3
SPOT icon
Spotify
SPOT
+$11.3M
4
NFLX icon
Netflix
NFLX
+$8.89M
5
TEVA icon
Teva Pharmaceuticals
TEVA
+$7.8M

Top Sells

Rank Stock Value
1
UTHR icon
United Therapeutics
UTHR
+$10.9M
2
GLNG icon
Golar LNG
GLNG
+$8.4M
3
REAL icon
The RealReal
REAL
+$8.15M
4
TSM icon
TSMC
TSM
+$7.66M
5
BSX icon
Boston Scientific
BSX
+$7.61M

Sector Composition

Rank Sector Weight
1 Healthcare 27.28%
2 Technology 16.26%
3 Consumer Discretionary 13.3%
4 Industrials 11.04%
5 Communication Services 10.56%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GTLB icon
76
GitLab
GTLB
$6.58B
– –
-116,200
Closed -$6.55M
GTLS
77
DELISTED
Chart Industries
GTLS
– –
-27,600
Closed -$5.27M
HEI.A icon
78
HEICO Corp Class A
HEI.A
$37.2B
– –
-23,300
Closed -$4.34M
IWM icon
79
PUT
iShares Russell 2000 ETF
IWM
$81.9B
– –
-2,000
Closed -$44.2M
KYMR icon
80
Kymera Therapeutics
KYMR
$8.94B
– –
-136,500
Closed -$5.49M
LNG icon
81
Cheniere Energy
LNG
$52.9B
– –
-29,000
Closed -$6.23M
LUMN icon
82
PUT
Lumen
LUMN
$6.44B
– –
-2,000
Closed -$1.06M
MASI
83
DELISTED
Masimo
MASI
– –
-36,800
Closed -$6.08M
MPT
84
PUT
Medical Properties Trust
MPT
$2.81B
– –
-6,000
Closed -$2.37M
MRVL icon
85
Marvell Technology
MRVL
$196B
– –
-61,000
Closed -$6.74M
MTZ icon
86
MasTec
MTZ
$21.9B
– –
-52,000
Closed -$7.08M
NBIX icon
87
Neurocrine Biosciences
NBIX
$16.6B
– –
-48,000
Closed -$6.55M
NVO
88
CALL
Novo Nordisk
NVO
$209B
– –
-500
Closed -$4.3M
OSCR icon
89
CALL
Oscar Health
OSCR
$8.61B
– –
-342
Closed -$460K
OSCR icon
90
Oscar Health
OSCR
$8.61B
– –
-322,300
Closed -$4.33M
PGNY icon
91
Progyny
PGNY
$2.2B
– –
-332,000
Closed -$5.73M
REAL icon
92
The RealReal
REAL
$1.5B
– –
-745,600
Closed -$8.15M
FLNA
93
PUT
Filana Therapeutics
FLNA
$48.1M
– –
-2,470
Closed -$583K
SG icon
94
Sweetgreen
SG
$642M
– –
-217,000
Closed -$6.96M
TLT icon
95
PUT
iShares 20+ Year Treasury Bond ETF
TLT
$40.9B
– –
-4,000
Closed -$34.9M
TOST icon
96
Toast
TOST
$19.9B
– –
-192,600
Closed -$7.02M
TSLA icon
97
CALL
Tesla
TSLA
$1.3T
– –
-600
Closed -$24.2M
TSM icon
98
TSMC
TSM
$2.18T
– –
-38,800
Closed -$7.66M
TTD icon
99
Trade Desk
TTD
$6.49B
– –
-51,300
Closed -$6.03M
UTHR icon
100
United Therapeutics
UTHR
$23.1B
– –
-31,000
Closed -$10.9M
1 2 3
4
5

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LSA
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Atika Capital Management's Q1 2025 Portfolio in Review

As of Q1 2025, Atika Capital Management held 104 positions worth $711M, down 24% from $941M the previous quarter. Its ten largest holdings account for 47% of the portfolio.

Atika Capital Management withdrew a net $231M in Q1 2025, closing 42 positions and reducing 18 holdings. Its most notable exit was United Therapeutics, an estimated $10.9M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 27% of assets, up from 25% a quarter earlier, followed by Technology and Consumer Discretionary.

Against the trend, Atika Capital Management opened a new position in Teva Pharmaceuticals worth $6.72M.

  • Atika Capital Management's largest Q1 2025 buy was Teva Pharmaceuticals: 436,900 shares worth $6.72M.
  • Atika Capital Management added most to Amazon in Q1 2025, an estimated $28.9M increase.
  • Atika Capital Management's biggest Q1 2025 reduction was The Gap Inc, cutting an estimated $6.06M.
  • Atika Capital Management fully exited United Therapeutics in Q1 2025, selling an estimated $10.9M.
  • Atika Capital Management's ten largest holdings make up 47% of its $711M portfolio in Q1 2025.
  • Atika Capital Management opened 20 new positions and closed 42 in Q1 2025.
  • Atika Capital Management's portfolio value fell 24% quarter-over-quarter to $711M.

Based on Atika Capital Management's 13F filing for Q1 2025, filed 14 May 2025.