UBS OCONNOR LLC
Q2 2023 Form 13-F
CHICAGO, ILLINOIS
CIK 0001132716
· CRD 108754
· SEC-registered investment adviser
$4.7B Reported Value Total
UBS OCONNOR LLC reports 42 total accounts under management (AUM). There are 42 discretionary accounts valued at $14,941,616,740, and 0 non-discretionary accounts.
Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
SEC Registered
Discretionary & Non-Discretionary
Private funds (Form ADV)
30 funds
· $13.4B gross asset value
Hedge Fund: $13.4B
Source: Form ADV filed 2024-03-30
Reported value
$4.7B
Quarter over quarter
+1.8%
Holdings
496
Top-10 concentration
48.0%
Filing Structure
Reports holdings for
- UBS Eucalyptus Management, L.L.C. (not a 13F filer in our records) · File #028-11499 · Q2 2013 – Q2 2013
Key People
Form ADV owners & control persons
Bernard Shinmen Ahkong
CIO, GLOBAL MULTI-STRATEGY PORTFOLIO
Connor Barrett Burke
GENERAL COUNSEL
Barry John Gill
UBS ASSET MANAGEMENT - HEAD OF INVESTMENTS
Filing Navigation
Coverage begins with the second quarter of 2013. Earlier quarters are not shown while their accuracy is being verified.
13F Metrics
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Q2 2023 13F record
Q2 2023 13F filing summary
| Period of report | June 30, 2023 |
|---|---|
| Filed | August 14, 2023 |
| Form | 13F-HR |
| Reported value | $4.7B |
| Positions | 496 |
| Change in reported value | +12.5% |
| New positions | 104 |
| Exited positions | 149 |
| Position turnover | 39.2% |
| Top-10 concentration | 48.0% |
13F filings by quarter
| Quarter | Positions | Value |
|---|---|---|
|
Q4 2025 13F
Filed Feb 13, 2026
|
194 | $3.8B |
|
Q3 2025 13F
Filed Nov 14, 2025
|
214 | $3.3B |
|
Q2 2025 13F
Filed Aug 14, 2025
|
278 | $3.7B |
|
Q1 2025 13F
Filed May 15, 2025
|
256 | $4.2B |
|
Q4 2024 13F
Filed Feb 14, 2025
|
331 | $4.0B |
|
Q3 2024 13F
Filed Nov 14, 2024
|
395 | $4.1B |
|
Q2 2024 13F
Filed Aug 14, 2024
|
419 | $3.5B |
|
Q1 2024 13F
Filed May 15, 2024
|
408 | $3.5B |
|
Q4 2023 13F
Filed Feb 14, 2024
|
407 | $3.2B |
|
Q3 2023 13F
Filed Nov 14, 2023
|
457 | $5.6B |
|
Q2 2023 13F
Filed Aug 14, 2023
|
496 | $4.7B |
|
Q1 2023 13F
Filed May 15, 2023
|
538 | $4.2B |
|
Q4 2022 13F
Filed Feb 14, 2023
|
668 | $5.4B |
|
Q3 2022 13F
Filed Nov 14, 2022
|
877 | $8.8B |
|
Q2 2022 13F
Filed Aug 12, 2022
|
897 | $9.6B |
|
Q1 2022 13F
Filed May 16, 2022
|
891 | $9.1B |
|
Q4 2021 13F
Filed Feb 14, 2022
|
865 | $10.4B |
|
Q3 2021 13F
Filed Nov 12, 2021
|
837 | $8.6B |
|
Q2 2021 13F
Filed Aug 13, 2021
|
795 | $9.5B |
|
Q1 2021 13F
Filed May 14, 2021
|
759 | $6.9B |
31 earlier quarters on file — choose one from the quarter menu above.
Top 20 holdings · Q2 2023
| # | Holding | Reported value | % of portfolio |
|---|---|---|---|
| 1 | HZNP HORIZON TH | $445.5M | 9.38% |
| 2 | SGEN SEAGEN INC | $355.9M | 7.5% |
| 3 | ATVI ACTIVISION | $237.6M | 5.01% |
| 4 | ISEE IVERIC BIO | $230.1M | 4.85% |
| 5 | PDCE PDC ENERGY | $220.6M | 4.65% |
| 6 | UNVR UNIVAR SOL | $219.4M | 4.62% |
| 7 | VMW VMWARE INC | $156.9M | 3.31% |
| 8 | FOCS FOCUS FINL | $145.7M | 3.07% |
| 9 | SYNH SYNEOS HEA | $140.9M | 2.97% |
| 10 | NATI NATIONAL I | $124.8M | 2.63% |
| 11 | LSI LIFE STORA | $97.6M | 2.06% |
| 12 | ACI ALBERTSONS | $93.8M | 1.98% |
| 13 | SAVE SPIRIT AIR | $68.2M | 1.44% |
| 14 | TRTN TRITON INT | $62.2M | 1.31% |
| 15 | PTON 0 02/15/26 PELOTON IN | $51.3M | 1.08% |
| 16 | DICE DICE THERA | $49.9M | 1.05% |
| 17 | SIMO SILICON MO | $41.7M | 0.88% |
| 18 | NUVA NUVASIVE I | $39.2M | 0.83% |
| 19 | OXYWS OCCIDENTAL | $36.9M | 0.78% |
| 20 | MSTR 0 02/15/27 MICROSTRAT | $32.8M | 0.69% |
Values as reported on the Q2 2023 Form 13F. Every position is in the holdings table below.