Latest UBS OCONNOR LLC Stock Portfolio

UBS OCONNOR LLC Performance:

2025 Q3: 4.4%YTD: 10.03%2024: 1%

Performance for 2025 Q3 is 4.4%, and YTD is 10.03%, and 2024 is 1%.

About UBS OCONNOR LLC and 13F Hedge Fund Stock Holdings

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) is a hedge fund based in CHICAGO, IL. On 11-Aug-2023, the fund reported that it had an AUM (Regulated Assets under Management) of $14.9 Billions. In it's latest 13F Holdings report, OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) reported an equity portfolio of $1.7 Billions as of 30 Sep, 2025.

The top stock holdings of OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) are VRNA, COOP, SPR. The fund has invested 27.6% of it's portfolio in VERONA PHA and 10.2% of portfolio in MR COOPER.

The fund managers got completely rid off WALGREENS (WBA), SKECHERS U (SKX) and BLUEPRINT (BPMC) stocks. They significantly reduced their stock positions in FIVE BELOW (FIVE), INTERNATIO (IP) and BROADCOM I (AVGO). OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) opened new stock positions in VERONA PHA (VRNA), SPIRIT AER (SPR) and ALLIANT EN (LNT). The fund showed a lot of confidence in some stocks as they added substantially to SABRE CORP (SABR), VISTA ENER (VIST) and ZEEKR INTE.

UBS OCONNOR LLC Annual Return Estimates Vs S&P 500

Our best estimate is that OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) made a return of 4.4% in the last quarter. In trailing 12 months, it's portfolio return was 7.75%.

Performance
S&P 500

New Buys

Ticker	$ Bought
verona pha	457,088,000
spirit aer	106,274,000
snowflake	30,390,000
halozyme t	20,664,000
alliant en	20,423,900
packaging	16,506,000
plymouth i	14,556,600
waste conn	11,268,800

New stocks bought by UBS OCONNOR LLC

Additions

Ticker	% Inc.
sabre corp	400
vista ener	184
zeekr inte	166
new provid	150
howmet aer	134
gates indl	122
egh acquis	100
banco bbva	91.4

Additions to existing portfolio by UBS OCONNOR LLC

Reductions

Ticker	% Reduced
five below	-83.33
internatio	-71.57
broadcom i	-70.34
halozyme t	-68.89
clear chan	-66.67
ulta beaut	-62.17
occidental	-55.66
strategy i	-52.5

UBS OCONNOR LLC reduced stake in above stock

Sold off

Ticker	$ Sold
walgreens	-288,328,000
dun & brad	-124,341,000
akamai tec	-9,234,000
championx	-187,460,000
skechers u	-227,045,000
juniper ne	-119,790,000
blueprint	-219,648,000
community	-5,100,000

UBS OCONNOR LLC got rid off the above stocks

Sector Distribution

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) has about 31.5% of it's holdings in Healthcare sector.

Sector	%
Healthcare	31.5
Others	18.9
Industrials	14.3
Financial Services	12.1
Utilities	6.5
Consumer Cyclical	6.3
Technology	5.2
Basic Materials	2
Communication Services	1.3

Market Cap. Distribution

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) has about 24.1% of it's portfolio invested in the large-cap and mega-cap stocks.

Category	%
MID-CAP	54.7
LARGE-CAP	19.2
UNALLOCATED	19
MEGA-CAP	4.9
SMALL-CAP	1.8

Stocks belong to which Index?

About 34.9% of the stocks held by OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) either belong to S&P 500 or RUSSELL 2000 index.

Index	%
Others	65.1
S&P 500	20.1
RUSSELL 2000	14.8

Top 5 Winners (%)		%
	cid holdco	107.3 %
	bolt projs	84.2 %
COMM	commscope	65.2 %
	pony ai in	64.4 %
AMAO	royalty mg	63.3 %

Top 5 Winners ($)		$
COOP	mr cooper	38.0 M
NVDA	nvidia cor	6.0 M
	pony ai in	2.7 M
	b2gold cor	2.6 M
URI	united ren	2.5 M

Top 5 Losers (%)		%
	brand enga	-48.2 %
BBAR	banco bbva	-42.7 %
	globant s	-33.3 %
SABR	sabre corp	-30.4 %
VIST	vista ener	-20.9 %

Top 5 Losers ($)		$
MAT	mattel inc	-2.6 M
BBAR	banco bbva	-2.3 M
CROX	crocs inc	-1.8 M
MELI	mercadolib	-1.8 M
	globant s	-1.4 M

UBS OCONNOR LLC Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of UBS OCONNOR LLC

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) has 203 stocks in it's portfolio. About 52.7% of the portfolio is in top 10 stocks. MAT proved to be the most loss making stock for the portfolio. COOP was the most profitable stock for OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) last quarter.

Last Reported on: 15 Jan, 2026

Ticker	Namesorted ascending	% Portfolio	Shares Held	$ Value	Type	% Change
ABBV	abbvie inc	0.00	0.00	0.00	sold off	-100

ACAD	acadia pha	0.00	0.00	0.00	sold off	-100

ACEL	accel ente	0.16	246,728	2,731,280	unchanged	0.00

ACMR	acm resh i	0.19	79,396	3,106,760	reduced	-13.81

ADPT	adaptive b	0.00	0.00	0.00	sold off	-100

ADT	adt inc de	0.12	229,607	1,999,880	unchanged	0.00

AEP	american e	0.28	42,000	4,725,000	new

AGIO	agios phar	0.00	0.00	0.00	sold off	-100

AKAM	akamai tec	0.00	0.00	0.00	sold off	-100

ALGN	align tech	0.00	0.00	0.00	sold off	-100

AMAO	royalty mg	0.00	221,686	10,752	unchanged	0.00

AMAT	applied ma	0.00	0.00	0.00	sold off	-100

AMC	amc entmt	0.01	39,688	115,095	unchanged	0.00

AMD	advanced m	0.00	0.00	0.00	sold off	-100

AME	ametek inc	0.00	0.00	0.00	sold off	-100

AMED	amedisys i	0.00	0.00	0.00	sold off	-100

AMZN	amazon com	0.00	0.00	0.00	sold off	-100

ANAB	anaptysbio	0.00	0.00	0.00	sold off	-100

ANET	arista net	0.26	30,000	4,371,300	new

ANNX	annexon in	0.00	0.00	0.00	sold off	-100