OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)
All 13F Filings
- Location
- Chicago, IL
- Most recent 13F
- Q4 2025
- Holdings value ($000)
- 857,836
- Description
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- Website
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- Founded
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- Chairman
- —
- CEO
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- All SEC filings
- View on sec.gov
Sector allocation over time (stocks only)
Stacked by quarter. Hover to see detailed sector breakdown for any quarter.
| Quarter | Date Filed | Holdings | Value ($000) | Form Type | Name |
|---|---|---|---|---|---|
| Q4 2025 | 8/14/2026 | 1 | 380,234 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q4 2025 | 5/15/2026 | 13 | 2,446,011 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q4 2025 | 3/4/2026 | 1 | 72,323 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q4 2025 | 2/13/2026 | 221 | 857,836 | 13F-HR | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q3 2025 | 8/14/2026 | 2 | 286,455 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q3 2025 | 5/15/2026 | 4 | 780,438 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q3 2025 | 2/13/2026 | 5 | 616,059 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q3 2025 | 1/15/2026 | 263 | 1,658,033 | 13F-HR/A - RESTATEMENT | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q3 2025 | 11/14/2025 | 176 | 927,538 | 13F-HR | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q2 2025 | 8/14/2026 | 1 | 90,449 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q2 2025 | 5/15/2026 | 1 | 219,473 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q2 2025 | 2/13/2026 | 4 | 633,717 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q2 2025 | 11/14/2025 | 7 | 790,666 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q2 2025 | 8/14/2025 | 354 | 1,952,324 | 13F-HR | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q1 2025 | 5/15/2026 | 1 | 188,383 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q1 2025 | 2/13/2026 | 1 | 11,983 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q1 2025 | 11/14/2025 | 4 | 698,504 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q1 2025 | 8/14/2025 | 12 | 2,103,095 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q4 2024 | 2/13/2026 | 1 | 143,526 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q4 2024 | 11/14/2025 | 1 | 93,951 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q4 2024 | 8/14/2025 | 8 | 1,320,513 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q3 2024 | 11/14/2025 | 1 | 21,318 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q3 2024 | 8/14/2025 | 4 | 1,006,262 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q2 2024 | 8/14/2025 | 2 | 567,930 | 13F-HR/A - NEW HOLDINGS | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) |
| Q1 2014 | 5/14/2014 | 427 | 5,094,622 | 13F-HR | UBS OCONNOR LLC |
| Q4 2013 | 5/14/2014 | 1 | 4,350 | 13F-HR/A - NEW HOLDINGS | UBS OCONNOR LLC |
| Q4 2013 | 2/13/2014 | 394 | 5,407,737 | 13F-HR | UBS OCONNOR LLC |
| Q3 2013 | 5/14/2014 | 4 | 111,123 | 13F-HR/A - NEW HOLDINGS | UBS OCONNOR LLC |
| Q3 2013 | 2/13/2014 | 1 | 44,403 | 13F-HR/A - NEW HOLDINGS | UBS OCONNOR LLC |
| Q2 2013 | 5/14/2014 | 4 | 161,919 | 13F-HR/A - NEW HOLDINGS | UBS OCONNOR LLC |
| Q2 2013 | 2/13/2014 | 3 | 95,744 | 13F-HR/A - NEW HOLDINGS | UBS OCONNOR LLC |
| Q1 2013 | 2/13/2014 | 2 | 46,788 | 13F-HR/A - NEW HOLDINGS | UBS OCONNOR LLC |
| Q4 2012 | 2/13/2014 | 2 | 59,375 | 13F-HR/A - NEW HOLDINGS | UBS OCONNOR LLC |
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Money flow by instrument (QoQ, ex-options)
Derivatives reported exposure ($000):
10.24 K
(1.2% of total reported value)
· QoQ Δ:
-4.282 K
| Type | Value ($000) | Share % | Inflow | Outflow | Net |
|---|---|---|---|---|---|
| Stocks | 669.5 K | 79.2% | 0 | 780.2 K | -780.2 K |
| Debt | 176.3 K | 20.8% | 0 | 14.67 K | -14.67 K |
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Fund Snapshot
Q4 2025
Latest filed
2/13/2026
Total value ($000)
857,836
Holdings
221
QoQ value change ($000)
-800,197
(-48.3%)
Value = total reported 13F value ($000), Holdings = number of positions.
13F Value over time
Holdings count over time
Sector allocation (latest, stocks only)
Methodology:
sector allocation is stocks-only;
instrument flow table is ex-options;
options exposure is shown separately.
Details.