2026 Q1 Portfolio Activity
In 2026 Q1, O'Connor Alternative Investments LLC maintained a portfolio of 128 distinct positions.
Position History
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Total Positions
128
Quarter
2026 Q1
Top Holding
HOLX (20.2%)
Top 10 Concentration
73.9%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 128
O'Connor Alternative Investments 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
HOLX
HOLOGIC IN
|
Healthcare | 20.19% | — |
#1
Prev: #—
|
9.5 |
—
|
3,118,178 | — |
NEW
|
3,118,178 | $235,703,075 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
AL
AIR LEASE
|
Industrials | 15.91% | — |
#2
Prev: #—
|
9.0 |
—
|
2,860,079 | — |
NEW
|
2,860,079 | $185,733,530 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
FOLD
AMICUS THE
|
Healthcare | 10.46% | — |
#3
Prev: #—
|
8.5 |
—
|
8,444,992 | — |
NEW
|
8,444,992 | $122,114,584 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SEE
SEALED AIR
|
Consumer Cyclical | 7.98% | — |
#4
Prev: #—
|
7.2 |
—
|
2,214,582 | — |
NEW
|
2,214,582 | $93,123,173 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
OS
ONESTREAM
|
Technology | 6.55% | — |
#5
Prev: #—
|
6.6 |
—
|
3,186,804 | — |
NEW
|
3,186,804 | $76,483,296 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
DAWN
DAY ONE BI
|
Healthcare | 3.43% | — |
#6
Prev: #—
|
4.9 |
—
|
1,867,553 | — |
NEW
|
1,867,553 | $40,040,336 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
N/A
SNOWFLAKE
|
|
Bond/Debt | 2.64% | — |
#7
Prev: #—
|
4.6 |
—
|
25,000,000 | — |
NEW
|
25,000,000 | $30,787,500 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
DUKE ENERG
|
|
Bond/Debt | 2.37% | — |
#8
Prev: #—
|
4.4 |
—
|
25,000,000 | — |
NEW
|
25,000,000 | $27,665,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
CUK
CARNIVAL P
|
Consumer Cyclical | 2.17% | — |
#9
Prev: #—
|
4.4 |
—
|
982,643 | — |
NEW
|
982,643 | $25,322,710 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
N/A
CLOUDFLARE
|
|
Bond/Debt | 2.16% | — |
#10
Prev: #—
|
4.4 |
—
|
21,500,000 | — |
NEW
|
21,500,000 | $25,245,300 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
LIVE NATIO
|
|
Bond/Debt | 1.96% | — |
#11
Prev: #—
|
4.3 |
—
|
15,000,000 | — |
NEW
|
15,000,000 | $22,885,500 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
ON SEMICON
|
|
Bond/Debt | 1.69% | — |
#12
Prev: #—
|
4.2 |
—
|
20,000,000 | — |
NEW
|
20,000,000 | $19,684,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
AKAMAI TEC
|
|
Bond/Debt | 1.47% | — |
#13
Prev: #—
|
4.1 |
—
|
15,000,000 | — |
NEW
|
15,000,000 | $17,151,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
KLARNA GRO
|
|
Unknown | 1.26% | — |
#14
Prev: #—
|
4.0 |
—
|
1,127,170 | — |
NEW
|
1,127,170 | $14,754,655 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
GOOG
ALPHABET I
|
Communication Services | 1.24% | — |
#15
Prev: #—
|
4.0 |
—
|
50,250 | — |
NEW
|
50,250 | $14,414,715 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SMH
VANECK ETF
|
ETF | 0.90% | — |
#16
Prev: #—
|
3.9 |
—
|
27,500 | — |
NEW
|
27,500 | $10,543,500 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
N/A
ATRIUM THE
|
|
Unknown | 0.66% | — |
#17
Prev: #—
|
3.8 |
—
|
578,011 | — |
NEW
|
578,011 | $7,728,007 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
FOX
FOX CORP
|
Communication Services | 0.63% | — |
#18
Prev: #—
|
3.8 |
—
|
137,780 | — |
NEW
|
137,780 | $7,316,118 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
N/A
JENA ACQUI
|
|
Unknown | 0.61% | — |
#19
Prev: #—
|
3.7 |
—
|
700,000 | — |
NEW
|
700,000 | $7,154,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
EGH ACQUIS
|
|
Unknown | 0.44% | — |
#20
Prev: #—
|
3.7 |
—
|
500,000 | — |
NEW
|
500,000 | $5,105,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
KENSINGTON
|
|
Unknown | 0.43% | — |
#21
Prev: #—
|
3.7 |
—
|
500,000 | — |
NEW
|
500,000 | $5,020,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
ONEIM ACQU
|
|
Unknown | 0.43% | — |
#22
Prev: #—
|
3.7 |
—
|
500,000 | — |
NEW
|
500,000 | $4,980,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
GORES HLDG
|
|
Unknown | 0.42% | — |
#23
Prev: #—
|
3.7 |
—
|
474,941 | — |
NEW
|
474,941 | $4,853,897 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
CANTOR EQU
|
|
Unknown | 0.39% | — |
#24
Prev: #—
|
3.7 |
—
|
450,000 | — |
NEW
|
450,000 | $4,545,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
Z
ZILLOW GRO
|
Communication Services | 0.38% | — |
#25
Prev: #—
|
3.7 |
—
|
107,930 | — |
NEW
|
107,930 | $4,466,143 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ANSC
AGRICULTUR
|
Financial Services | 0.37% | — |
#26
Prev: #—
|
3.6 |
—
|
384,160 | — |
NEW
|
384,160 | $4,333,325 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
N/A
TRAILBLAZE
|
|
Unknown | 0.34% | — |
#27
Prev: #—
|
3.6 |
—
|
400,000 | — |
NEW
|
400,000 | $4,020,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
TRG LATIN
|
|
Unknown | 0.30% | — |
#28
Prev: #—
|
3.6 |
—
|
350,000 | — |
NEW
|
350,000 | $3,482,500 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
LOKV
LIVE OAK A
|
Financial Services | 0.29% | — |
#29
Prev: #—
|
3.6 |
—
|
324,923 | — |
NEW
|
324,923 | $3,379,199 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
NHIC
NEWHOLD IN
|
Unknown | 0.29% | — |
#30
Prev: #—
|
3.6 |
—
|
324,604 | — |
NEW
|
324,604 | $3,372,636 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
WDC
WESTERN DI
|
Technology | 0.28% | — |
#31
Prev: #—
|
3.6 |
—
|
12,000 | — |
NEW
|
12,000 | $3,245,880 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
OACC
OAKTREE AC
|
Financial Services | 0.27% | — |
#32
Prev: #—
|
3.6 |
—
|
300,000 | — |
NEW
|
300,000 | $3,174,000 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
AACIU
ARMADA ACQ
|
Financial Services | 0.26% | — |
#33
Prev: #—
|
3.6 |
—
|
300,000 | — |
NEW
|
300,000 | $2,997,000 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
CWEN/A
CLEARWAY E
|
Utilities | 0.25% | — |
#34
Prev: #—
|
3.6 |
—
|
75,000 | — |
NEW
|
75,000 | $2,937,750 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
NCLH
NORWEGIAN
|
Consumer Cyclical | 0.23% | — |
#35
Prev: #—
|
3.6 |
—
|
145,200 | — |
NEW
|
145,200 | $2,715,240 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
GPAT
GP-ACT III
|
Financial Services | 0.23% | — |
#36
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,710,000 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ACEL
ACCEL ENTE
|
Consumer Cyclical | 0.23% | — |
#37
Prev: #—
|
3.6 |
—
|
246,728 | — |
NEW
|
246,728 | $2,691,802 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SVCC
STELLAR V
|
Financial Services | 0.22% | — |
#38
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,617,500 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
N/A
DUNE ACQUI
|
|
Unknown | 0.22% | — |
#39
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,582,500 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
BLUE WTR A
|
|
Unknown | 0.22% | — |
#40
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,572,500 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
NEW PROVID
|
|
Unknown | 0.22% | — |
#41
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,565,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
CARTESIAN
|
|
Unknown | 0.22% | — |
#42
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,562,500 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
THAYER VEN
|
|
Unknown | 0.22% | — |
#43
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,557,500 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
TALON CAP
|
|
Unknown | 0.22% | — |
#44
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,550,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
SOLARIUS C
|
|
Unknown | 0.22% | — |
#45
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,545,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
PIONEER AC
|
|
Unknown | 0.22% | — |
#46
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,540,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
OXLEY BRID
|
|
Unknown | 0.22% | — |
#47
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,532,500 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
M3-BRIGADE
|
|
Unknown | 0.22% | — |
#48
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,513,750 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
HIGHVIEW M
|
|
Unknown | 0.22% | — |
#49
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,512,500 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
N/A
CSLM DIGIT
|
|
Unknown | 0.22% | — |
#50
Prev: #—
|
3.6 |
—
|
250,000 | — |
NEW
|
250,000 | $2,510,000 | — | 13F Filing | 2026-03-31 | 2026-05-15 |
Showing 1-50 of 128 holdings