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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
+24.59%
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
$1.24B
AUM Growth
+$242M
Cap. Flow
+$78.9M
Cap. Flow %
6.36%
Top 10 Hldgs %
41.79%
Holding
98
New
35
Increased
21
Reduced
21
Closed
12

Top Buys

Rank Stock Value
1
STX icon
Seagate
STX
+$20.2M
2
INSM icon
Insmed
INSM
+$11.6M
3
TSLA icon
Tesla
TSLA
+$10.8M
4
CDTX
Cidara Therapeutics
CDTX
+$10M
5
ROKU icon
Roku
ROKU
+$8.15M

Top Sells

Rank Stock Value
1
HOOD icon
Robinhood
HOOD
+$10.6M
2
SLNO
Soleno Therapeutics
SLNO
+$10.1M
3
GKOS icon
Glaukos
GKOS
+$9.83M
4
TW icon
Tradeweb Markets
TW
+$7.32M
5
WWD icon
Woodward
WWD
+$7.01M

Sector Composition

Rank Sector Weight
1 Technology 22.89%
2 Healthcare 17.33%
3 Industrials 15.64%
4 Consumer Discretionary 13.71%
5 Communication Services 12.08%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
FND icon
51
CALL
Floor & Decor
FND
$6.68B
$5.9M 0.47%
800
+500
+167% +$41K
ABVX
52
Abivax
ABVX
$11.4B
$5.86M 0.47%
+69,000
New +$4.23M
STX icon
53
CALL
Seagate
STX
$184B
$5.52M 0.44%
+234
New +$39.9K
PTGX icon
54
Protagonist Therapeutics
PTGX
$9.44B
$5.51M 0.44%
+83,000
New +$4.72M
CALX icon
55
Calix
CALX
$2.39B
$5.49M 0.44%
+89,500
New +$5.15M
CW icon
56
Curtiss-Wright
CW
$25.5B
$5.46M 0.44%
10,051
-1,449
-13% -$714K
ECHO
57
EchoStar
ECHO
$26.2B
$5.27M 0.42%
69,000
+44,800
+185% +$2.03M
QURE icon
58
uniQure
QURE
$3.22B
$5.25M 0.42%
+90,000
New +$1.63M
U icon
59
CALL
Unity
U
$18.9B
$5.21M 0.42%
+1,300
New +$48.2K
GNRC icon
60
Generac Holdings
GNRC
$12.5B
$5.19M 0.42%
+31,000
New +$5.43M
SPNT icon
61
SiriusPoint
SPNT
$2.68B
$4.7M 0.38%
260,000
-9,300
-3% -$174K
KYMR icon
62
Kymera Therapeutics
KYMR
$8.94B
$4.6M 0.37%
81,300
-65,300
-45% -$2.95M
TEVA icon
63
Teva Pharmaceuticals
TEVA
$41.2B
$4.52M 0.36%
+224,000
New +$3.93M
ASND icon
64
Ascendis Pharma A/S
ASND
$16.8B
$4.41M 0.35%
22,160
+5,760
+35% +$1.07M
TBBB icon
65
BBB Foods
TBBB
$4.92B
$4.29M 0.35%
159,000
-2,544
-2% -$66.1K
KMLM icon
66
CALL
KFA Mount Lucas Managed Futures Index Strategy ETF
KMLM
$405M
$4.2M 0.34%
+1,000
New +$26.7K
SN icon
67
SharkNinja
SN
$26.1B
$4.13M 0.33%
40,000
-45,500
-53% -$5.2M
REAL icon
68
The RealReal
REAL
$1.5B
$3.98M 0.32%
+374,000
New +$2.77M
AVGO icon
69
Broadcom
AVGO
$2.04T
$3.79M 0.31%
+11,500
New +$3.53M
LMND icon
70
Lemonade
LMND
$4.1B
$3.69M 0.3%
+69,000
New +$3.37M
AI icon
71
PUT
C3.ai
AI
$1.59B
$3.65M 0.29%
+2,103
New +$43.9K
U icon
72
Unity
U
$18.9B
$3.2M 0.26%
+80,000
New +$2.97M
RXST icon
73
RxSight
RXST
$260M
$3.19M 0.26%
354,907
– –
NTSK
74
Netskope Inc
NTSK
$6.01B
$2.59M 0.21%
+114,000
New +$2.71M
HTFL
75
Heartflow Inc
HTFL
$2.49B
$2.32M 0.19%
+69,000
New +$2.22M
1 2
3
4

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Atika Capital Management's Q3 2025 Portfolio in Review

As of Q3 2025, Atika Capital Management held 98 positions worth $1.24B, up 24% from $1,000M the previous quarter. Its ten largest holdings account for 42% of the portfolio.

Atika Capital Management deployed $78.9M of net new capital in Q3 2025, opening 35 new positions and adding to 21 existing holdings. Its largest new stake was Seagate: 118,096 shares worth $27.9M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 18% a quarter earlier, followed by Healthcare and Industrials.

On the sell side, the largest reduction was Robinhood, an estimated $10.6M trimmed.

  • Atika Capital Management's largest Q3 2025 buy was Seagate: 118,096 shares worth $27.9M.
  • Atika Capital Management added most to Roku in Q3 2025, an estimated $8.15M increase.
  • Atika Capital Management's biggest Q3 2025 reduction was Robinhood, cutting an estimated $10.6M.
  • Atika Capital Management fully exited Soleno Therapeutics in Q3 2025, selling an estimated $10.1M.
  • Atika Capital Management's ten largest holdings make up 42% of its $1.24B portfolio in Q3 2025.
  • Atika Capital Management opened 35 new positions and closed 12 in Q3 2025.
  • Atika Capital Management's portfolio value rose 24% quarter-over-quarter to $1.24B.

Based on Atika Capital Management's 13F filing for Q3 2025, filed 13 Nov 2025.