Data as of Q4 2025 (Dec 31, 2025)

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS

•CIK: 1132716•Filing: Q4 2025

**UBS OCONNOR LLC** manages $846M across a portfolio of 215 positions. The firm maintains significant exposure to financials and technology, highlighted by a top holding in BLK at $93.7M. Other notable allocations include CDTX at $69.7M and AVGO at $27.3M. This concentrated approach suggests a focus on established, large-cap names within key sectors.

Total AUM
$659.9M
+ $9.8M in options
QoQ Performance
N/A
Positions
164
+ 32 options
Top 10 Concentration
36.1%
Latest Filing
Q4 2025

Top Holdings Allocation

CDTX
SYU1
CDTX10.4%
SYU15.2%
AVGO4.1%
MAT2.9%
NVDA2.7%
AEP2.2%
CNP2.2%
LNT2.2%

📈 Biggest Buys

CDTX
CIDARA THE
NEW
10.4% of portfolio
SYU1
SYNOVUS FI
NEW
5.2% of portfolio
AVGO
BROADCOM I
+1197.0%
4.1% of portfolio
MAT
MATTEL INC
+464.5%
2.9% of portfolio
AEP
AMERICAN E
NEW
2.2% of portfolio

📉 Biggest Sells

TSEM
TOWER SEMI
-99.3%
0.2% of portfolio
UAL
UNITED AIR
-85.0%
0.8% of portfolio
LYV
LIVE NATIO
-85.1%
0.7% of portfolio
CCO
CAMECO COR
-94.8%
0.1% of portfolio
COHR
COHERENT C
-66.3%
0.6% of portfolio

Sector Breakdown

Other83.3%
Technology8.6%
Industrial2.4%
Materials2.0%
Consumer1.8%
Utilities1.3%
Healthcare0.4%
Communication0.1%

🚪 Exited Positionssold since Q4 2023

NEWREUR
NEW RELIC
SOLD
$283.7M
HZNPEUR
HORIZON T
SOLD
$260.1M
DENEUR
DENBURY IN
SOLD
$189.3M
UNVREUR
UNIVAR SOL
SOLD
$180.4M
2JE
FOCUS FINL
SOLD
$145.7M
+423 more exited positions

Changes from Q4 2023

NEW164 new positions
↑16 increased
↓19 decreased

Historical Filings

Q4 2025Q4 2023

📌 Top Holdings

CDTX10.4%
CIDARA THE
$69.7M
SYU15.2%
SYNOVUS FI
$35.0M
AVGO4.1%
BROADCOM I
$27.3M
MAT2.9%
MATTEL INC
$19.3M
NVDA2.7%
NVIDIA COR
$18.1M

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