Stocks/Funds/CIK 2081629

O'Connor Alternative Investments LLC

Quarterly 13F filings · Latest period 2026-03-31 · CIK 2081629
Assets
$1.17B
Holdings
121
Lifetime alpha vs market
+0.00% annual
Average hold time
0.3 yr
median 0.3 yr

Behavior signals (lifetime)

Dip response
when a holding falls −10%+
Middle response
Rally response
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
HOLXHologic, Inc.$236M20.2%0.3 yr
ALAir Lease Corporation$186M15.9%0.3 yr
FOLDAmicus Therapeutics, Inc$122M10.5%0.3 yr
SEESealed Air Corporation$93M8.0%0.3 yr
OSOneStream, Inc. Class A $76M6.6%0.3 yr
DAWNDay One Biopharmaceutica$40M3.4%0.3 yr
$31M2.6%0.3 yr
$28M2.4%0.3 yr
CUKCarnival Corporation & p$25M2.2%0.3 yr
$25M2.2%0.3 yr
$23M2.0%0.3 yr
$20M1.7%0.3 yr
$17M1.5%0.3 yr
$15M1.3%0.3 yr
GOOGAlphabet Inc.$14M1.2%0.3 yr

Portfolio composition (YoY)

Industry mix
Unknown20.6%$240M
Medical - Instruments & Supplies20.2%$236M
Rental & Leasing Services15.9%$186M
Biotechnology14.6%$170M
Packaging & Containers8.0%$93M
Software - Application6.6%$76M
Shell Companies5.9%$68M
Leisure2.2%$25M
Asset Management1.9%$22M
Internet Content & Information1.6%$19M
Country
US78.0%
Unknown20.6%
KY1.1%
CA0.2%
HK0.1%
Top 5: 61.2% · Top 10: 73.9% · Top 25: 86.9%

Winners

TickerPrev $PnLYoY %

Losers

TickerPrev $PnLYoY %

Top buys this quarter · 15

HOLX Hologic, Inc.new+$236M
AL Air Lease Corporationnew+$186M
FOLD Amicus Therapeutics, Inc.new+$122M
SEE Sealed Air Corporationnew+$93M
OS OneStream, Inc. Class A Commonnew+$76M
DAWN Day One Biopharmaceuticals, Innew+$40M
CUK Carnival Corporation & plcnew+$25M
GOOG Alphabet Inc.new+$14M
RNA Atrium Therapeutics, Inc.new+$8M
FOX Fox Corporationnew+$7M

Top sells this quarter · 0

No sells this quarter

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$1.17B121