2026 Q1 Portfolio Activity
In 2026 Q1, Atika Capital Management LLC maintained a portfolio of 96 distinct positions. The most significant new addition was VANECK ETF TRUST, now representing 3.47% of the total fund value. They heavily accumulated shares in ECHOSTAR CORP, increasing the position by 45.8%. The fund also reduced its exposure to SPDR SERIES TRUST by 56.1%.
Position History
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Total Positions
96
Quarter
2026 Q1
Top Holding
VRT (21.0%)
Top 10 Concentration
52.3%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 96
Atika Capital Management LLC Full Holdings List — 2026 Q1
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
VRT
VERTIV HOLDINGS...
|
Industrials | 20.96% | 10.85% |
#1
1
Prev: #2
|
6.5 |
—
|
30,000 | 4.7% |
P
S
|
666,100 | $166,911,338 | 2023 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
XBI
PUT
SPDR SERIES TRU...
|
PUT Option | 6.78% | 12.36% |
#2
1
Prev: #1
|
4.2 |
—
|
-5,400 | -56.1% |
P
S
|
4,225 | $53,965,925 | 2016 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
LLY
ELI LILLY & CO
|
Healthcare | 4.75% | 4.65% |
#3
Prev: #3
|
3.9 |
—
|
no change | no change |
P
S
|
41,100 | $37,802,547 | 2015 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
SMH
PUT
VANECK ETF TRUS...
|
PUT Option | 3.47% | — |
#4
Prev: #—
|
5.4 |
—
|
720 | — |
NEW
|
720 | $27,604,800 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
ISRG
INTUITIVE SURGI...
|
Healthcare | 3.31% | 3.41% |
#5
Prev: #5
|
2.8 |
—
|
no change | no change |
P
S
|
57,216 | $26,376,003 | 2016 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
IWM
PUT
ISHARES TR
|
PUT Option | 3.11% | 2.36% |
#6
Prev: #6
|
3.2 |
—
|
90 | 9.9% |
P
S
|
1,000 | $24,800,000 | 2014 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
SATS
ECHOSTAR CORP
|
Communication Services | 2.68% | 1.43% |
#7
10
Prev: #17
|
3.6 |
—
|
57,194 | 45.8% |
P
S
|
182,000 | $21,306,740 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
STX
SEAGATE TECHNOL...
|
Technology | 2.63% | 1.50% |
#8
7
Prev: #15
|
1.6 |
—
|
1,593 | 3.1% |
P
S
|
53,500 | $20,959,160 | 2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
MTZ
MASTEC INC
|
Industrials | 2.33% | 1.28% |
#9
13
Prev: #22
|
1.4 |
—
|
1,638 | 2.9% |
P
S
|
57,636 | $18,543,806 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
SATS
CALL
ECHOSTAR CORP
|
CALL Option | 2.33% | 4.56% |
#10
6
Prev: #4
|
0.9 |
—
|
-2,400 | -60.3% |
P
S
|
1,583 | $18,532,181 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
NFLX
NETFLIX INC.
|
Communication Services | 2.17% | 1.78% |
#11
2
Prev: #13
|
1.9 |
—
|
no change | no change |
P
S
|
180,000 | $17,307,001 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
CIEN
CIENA CORP
|
Technology | 2.13% | 1.48% |
#12
4
Prev: #16
|
0.9 |
—
|
-16,349 | -27.2% |
P
S
|
43,651 | $16,946,628 | 2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
BWXT
BWX TECHNOLOGIE...
|
Industrials | 2.12% | 1.98% |
#13
3
Prev: #10
|
0.8 |
—
|
-26,350 | -24.2% |
P
S
|
82,550 | $16,880,650 | 2022 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
NFLX
CALL
NETFLIX INC.
|
CALL Option | 1.99% | — |
#14
Prev: #—
|
4.3 |
—
|
1,650 | — |
NEW
|
1,650 | $15,864,750 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
TERN
TERNS PHARMACEU...
|
Healthcare | 1.99% | 1.37% |
#15
6
Prev: #21
|
1.3 |
—
|
-21,165 | -6.6% |
P
S
|
300,000 | $15,816,000 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
TEVA
TEVA PHARMACEUT...
|
Healthcare | 1.80% | 2.36% |
#16
9
Prev: #7
|
0.7 |
—
|
-240,000 | -33.5% |
P
S
|
477,000 | $14,367,240 | 2015 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
GDX
CALL
VANECK ETF TRUS...
|
CALL Option | 1.73% | — |
#17
Prev: #—
|
4.2 |
—
|
1,500 | — |
NEW
|
1,500 | $13,765,500 | 2017 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
NET
CLOUDFLARE INC
|
Technology | 1.68% | 1.14% |
#18
7
Prev: #25
|
2.7 |
—
|
10,100 | 18.4% |
P
S
|
65,000 | $13,412,100 | 2020 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
GOOG
ALPHABET INC
|
Communication Services | 1.56% | 1.39% |
#19
1
Prev: #20
|
1.1 |
—
|
1,050 | 2.5% |
P
S
|
43,250 | $12,406,695 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
COGT
COGENT BIOSCIEN...
|
Healthcare | 1.42% | 1.89% |
#20
8
Prev: #12
|
0.6 |
—
|
-212,800 | -42.1% |
P
S
|
293,200 | $11,285,268 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
ORKA
ORUKA THERAPEUT...
|
Healthcare | 1.42% | — |
#21
Prev: #—
|
4.1 |
—
|
229,900 | — |
NEW
|
229,900 | $11,276,595 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
DNTH
DIANTHUS THERAP...
|
Healthcare | 1.36% | 0.58% |
#22
28
Prev: #50
|
1.0 |
—
|
-5,728 | -4.3% |
P
S
|
128,800 | $10,808,896 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
WDC
WESTERN DIGITAL...
|
Technology | 1.28% | — |
#23
Prev: #—
|
4.0 |
—
|
37,717 | — |
NEW
|
37,717 | $10,202,072 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
AMZN
AMAZON COM INC
|
Consumer Cyclical | 1.14% | 1.94% |
#24
13
Prev: #11
|
0.5 |
—
|
-36,300 | -45.4% |
P
S
|
43,700 | $9,101,400 | 2015 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
TTMI
TTM TECHNOLOGIE...
|
Technology | 1.14% | 0.74% |
#25
19
Prev: #44
|
1.0 |
—
|
-8,473 | -8.4% |
P
S
|
93,000 | $9,060,060 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
FIVE
FIVE BELOW INC
|
Consumer Cyclical | 1.13% | 1.11% |
#26
Prev: #26
|
0.5 |
—
|
-16,720 | -29.8% |
P
S
|
39,480 | $9,020,390 | 2016 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
CW
CURTISS WRIGHT ...
|
Industrials | 1.11% | 0.57% |
#27
24
Prev: #51
|
2.9 |
—
|
3,118 | 31.6% |
P
S
|
13,000 | $8,854,560 | 2025 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
GH
GUARDANT HEALTH...
|
Healthcare | 1.06% | 1.16% |
#28
4
Prev: #24
|
0.9 |
—
|
-17,000 | -15.7% |
P
S
|
91,000 | $8,405,670 | 2019 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
MELI
MERCADOLIBRE I...
|
Consumer Cyclical | 0.98% | 1.26% |
#29
6
Prev: #23
|
0.4 |
—
|
-1,437 | -24.2% |
P
S
|
4,510 | $7,797,881 | 2020 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
APPF
APPFOLIO INC
|
Technology | 0.94% | 1.09% |
#30
2
Prev: #28
|
2.4 |
—
|
3,000 | 6.7% |
P
S
|
47,500 | $7,496,450 | 2023 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
GDX
VANECK ETF TRUS...
|
ETF | 0.92% | — |
#31
Prev: #—
|
3.9 |
—
|
80,000 | — |
NEW
|
80,000 | $7,341,600 | 2017 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
UTHR
UNITED THERAPEU...
|
Healthcare | 0.92% | — |
#32
Prev: #—
|
3.9 |
—
|
12,350 | — |
NEW
|
12,350 | $7,323,304 | 2015 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
KRMN
KARMAN HLDGS IN...
|
Industrials | 0.91% | — |
#33
Prev: #—
|
3.9 |
—
|
90,500 | — |
NEW
|
90,500 | $7,244,526 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
FERG
FERGUSON ENTERP...
|
Industrials | 0.86% | 0.69% |
#34
12
Prev: #46
|
1.3 |
—
|
no change | no change |
P
S
|
29,300 | $6,834,518 | 2024 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
PTGX
PROTAGONIST THE...
|
Healthcare | 0.82% | 0.79% |
#35
4
Prev: #39
|
0.3 |
—
|
-23,900 | -27.8% |
P
S
|
62,100 | $6,545,339 | 2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
CLH
CLEAN HARBORS I...
|
Industrials | 0.79% | 0.07% |
#36
40
Prev: #76
|
3.3 |
—
|
18,855 | 628.5% |
P
S
|
21,855 | $6,266,484 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
TLN
TALEN ENERGY CO...
|
Utilities | 0.74% | 1.66% |
#37
23
Prev: #14
|
0.3 |
—
|
-23,610 | -56.1% |
P
S
|
18,490 | $5,902,563 | 2024 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
IMNM
IMMUNOME INC
|
Healthcare | 0.72% | 0.76% |
#38
5
Prev: #43
|
0.3 |
—
|
-71,441 | -21.4% |
P
S
|
262,900 | $5,749,623 | 2024 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
META
META PLATFORMS ...
|
Communication Services | 0.72% | — |
#39
Prev: #—
|
3.8 |
—
|
10,000 | — |
NEW
|
10,000 | $5,721,300 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
DBVT
DBV TECHNOLOGIE...
|
Healthcare | 0.71% | 0.42% |
#40
25
Prev: #65
|
2.8 |
—
|
64,419 | 31.1% |
P
S
|
271,300 | $5,667,456 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
RKLB
ROCKET LAB CORP
|
Industrials | 0.69% | 0.46% |
#41
20
Prev: #61
|
2.8 |
—
|
23,885 | 38.5% |
P
S
|
86,000 | $5,522,920 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
HEI
HEICO CORP NEW
|
Industrials | 0.66% | 0.90% |
#42
9
Prev: #33
|
0.3 |
—
|
-7,035 | -26.7% |
P
S
|
19,265 | $5,282,464 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
QXO
QXO INC
|
Industrials | 0.64% | 0.85% |
#43
8
Prev: #35
|
0.3 |
—
|
-155,747 | -37.1% |
P
S
|
264,253 | $5,131,794 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
SITM
SITIME CORP
|
Technology | 0.64% | — |
#44
Prev: #—
|
3.8 |
—
|
14,805 | — |
NEW
|
14,805 | $5,112,907 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
INTC
CALL
INTEL CORP
|
CALL Option | 0.55% | — |
#45
Prev: #—
|
3.7 |
—
|
1,000 | — |
NEW
|
1,000 | $4,413,000 | 2023 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
GE
GE AEROSPACE
|
Industrials | 0.55% | 0.84% |
#46
9
Prev: #37
|
0.2 |
—
|
-10,438 | -40.2% |
P
S
|
15,510 | $4,401,273 | 2024 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
ASND
ASCENDIS PHARMA...
|
Healthcare | 0.55% | 0.46% |
#47
13
Prev: #60
|
0.7 |
—
|
-1,517 | -7.3% |
P
S
|
19,125 | $4,374,461 | 2018 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
REAL
THE REALREAL IN...
|
Consumer Cyclical | 0.51% | 0.94% |
#48
16
Prev: #32
|
0.2 |
—
|
-113,945 | -20.2% |
P
S
|
451,055 | $4,095,579 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
TERN
CALL
TERNS PHARMACEU...
|
CALL Option | 0.48% | — |
#49
Prev: #—
|
3.7 |
—
|
720 | — |
NEW
|
720 | $3,795,840 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
LASR
NLIGHT INC
|
Technology | 0.47% | — |
#50
Prev: #—
|
3.7 |
—
|
66,000 | — |
NEW
|
66,000 | $3,763,320 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 |
Showing 1-50 of 96 holdings