OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) Form 13F-HR Filed 2025-05-15

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL

OMB Number:		3235-0006
Expires:	July 31, 2015
Estimated average burden
hours per response:		23.8

COLUMN 1	COLUMN 2	COLUMN 3	COLUMN 4	COLUMN 5			COLUMN 6	COLUMN 7	COLUMN 8
			VALUE	SHRS OR	SH/	PUT/	INVESTMENT	OTHER	VOTING AUTHORITY
NAME OF ISSUER	TITLE OF CLASS	CUSIP	(x$1000)	PRN AMT	PRN	CALL	DISCRETION	MANAGER	SOLE	SHARED	NONE
ADT INC DE	COM	00090Q103	1,869,001	229,607	SH		DFND		229,607	0	0
AES CORP	COM	00130H105	52,500	150,000	SH	Call	DFND		150,000	0	0
AMC ENTMT	CLANE	00165C302	113,905	39,688	SH		DFND		39,688	0	0
ABBVIE INC	COM	00287Y109	203,863	973	SH		DFND		973	0	0
ACCEL ENTE	COMCL	00436Q106	2,447,542	246,728	SH		DFND		246,728	0	0
ACRIVON TH	COMMO	004890109	31,619	15,576	SH		DFND		15,576	0	0
ADAPTIVE B	COM	00650F109	1,395,272	187,789	SH		DFND		187,789	0	0
ADVANCED M	COM	007903107	616,440	6,000	SH		DFND		6,000	0	0
AGIOS PHAR	COM	00847X104	1,720,555	58,722	SH		DFND		58,722	0	0
AIR PRODS	COM	009158106	10,320,725	34,995	SH		DFND		34,995	0	0
AKAMAI TEC	COM	00971T101	14,062	37,500	SH	Call	DFND		37,500	0	0
AKAMAI TEC	NOTE0	00971TAL5	7,308,750	7,500,000	PRN		DFND		7,500,000	0	0
AKERO THER	COM	00973Y108	761,024	18,800	SH		DFND		18,800	0	0
ALIBABA GR	SPONS	01609W102	4,687,157	35,447	SH		DFND		35,447	0	0
ALIGN TECH	COM	016255101	1,437,683	9,050	SH		DFND		9,050	0	0
ALLIANCE E	*WEXP	01861F110	13,428	60,000	SH		DFND		60,000	0	0
ALPHABET I	CAPST	02079K305	1,840,216	11,900	SH		DFND		11,900	0	0
ALPHATEC H	COMNE	02081G201	1,969,563	194,237	SH		DFND		194,237	0	0
ALTICE USA	CLA	02156K103	3,192,000	1,200,000	SH		DFND		1,200,000	0	0
AMAZON COM	COM	023135106	9,196,217	48,335	SH		DFND		48,335	0	0
ROYALTY MG	*WEXP	02369M110	5,320	221,686	SH		DFND		221,686	0	0
AMERICAN A	COM	02376R102	6,064,475	9,425,000	SH	Put	DFND		9,425,000	0	0
AMERICA MO	SPONA	02390A101	3,610,771	253,922	SH		DFND		253,922	0	0
AMPHENOL C	CLA	032095101	7,866,865	119,940	SH		DFND		119,940	0	0
ANAPTYSBIO	COM	032724106	874,678	47,051	SH		DFND		47,051	0	0
ANNEXON IN	COM	03589W102	900,961	466,819	SH		DFND		466,819	0	0
APPLE INC	COM	037833100	2,221,300	10,000	SH		DFND		10,000	0	0
ARCUS BIOS	COM	03969F109	1,010,201	128,688	SH		DFND		128,688	0	0
ARCUTIS BI	COM	03969K108	206,464	13,201	SH		DFND		13,201	0	0
ASTRAZENEC	SPONS	046353108	485,908	6,611	SH		DFND		6,611	0	0
AURA BIOSC	COM	05153U107	885,493	151,108	SH		DFND		151,108	0	0
AXOGEN INC	COM	05463X106	1,617,418	87,428	SH		DFND		87,428	0	0
B & G FOOD	COM	05508R106	59,640	113,600	SH	Put	DFND		113,600	0	0
BANCO SANT	SPADR	05965X109	2,632,100	115,443	SH		DFND		115,443	0	0
BAXTER INT	COM	071813109	1,853,726	54,155	SH		DFND		54,155	0	0
BECTON DIC	COM	075887109	5,288,537	23,088	SH		DFND		23,088	0	0
BEIGENE LT	SPONS	07725L102	511,680	1,880	SH		DFND		1,880	0	0
BEYOND MEA	NOTE3	08862EAB5	3,315,860	29,000,000	PRN		DFND		29,000,000	0	0
BICYCLE TH	SPONS	088786108	1,262,650	148,722	SH		DFND		148,722	0	0
BIOMARIN P	COM	09061G101	371,688	5,258	SH		DFND		5,258	0	0
BLUEPRINT	COM	09627Y109	30,750	10,000	SH	Put	DFND		10,000	0	0
BLUEPRINT	COM	09627Y109	1,315,701	14,865	SH		DFND		14,865	0	0
BOEING CO	COM	097023105	5,798,700	34,000	SH		DFND		34,000	0	0
BOLT PROJS	*WEXP	09769B115	4,303	110,914	SH		DFND		110,914	0	0
BOREALIS F	*WEXP	09973D113	8,320	70,030	SH		DFND		70,030	0	0
BRAND ENGA	*WEXP	104932116	3,065	150,251	SH		DFND		150,251	0	0
BRIDGEBIO	COM	10806X102	881,258	25,492	SH		DFND		25,492	0	0
BRIGHT MIN	COMNE	10919W405	215,085	5,963	SH		DFND		5,963	0	0
BROADCOM I	COM	11135F101	2,775,320	16,576	SH		DFND		16,576	0	0
B2GOLD COR	COM	11777Q209	5,479,410	1,922,600	SH		DFND		1,922,600	0	0
C4 THERAPE	COMST	12529R107	63,789	39,868	SH		DFND		39,868	0	0
CACI INTL	CLA	127190304	7,686,974	20,950	SH		DFND		20,950	0	0
CANADIAN N	COM	136375102	13,057,204	133,975	SH		DFND		133,975	0	0
LONGEVITY	*WEXP	142922111	13,365	371,250	SH		DFND		371,250	0	0
CARNIVAL C	COM	143658300	24,000	150,000	SH	Call	DFND		150,000	0	0
CARNIVAL C	COM	143658300	83,400	120,000	SH	Put	DFND		120,000	0	0
CELANESE C	COM	150870103	40,250	70,000	SH	Call	DFND		70,000	0	0
CHARTER CO	COM	16119P108	653,635	20,500	SH	Put	DFND		20,500	0	0
CHEMOURS C	COM	163851108	546,385	46,900	SH	Put	DFND		46,900	0	0
COMMERCIAL	COM	201723103	3,911,770	85,020	SH		DFND		85,020	0	0
COMMSCOPE	COM	20337X109	112,500	450,000	SH	Call	DFND		450,000	0	0
COMMSCOPE	COM	20337X109	2,655,000	500,000	SH		DFND		500,000	0	0
COMMUNITY	COM	203668108	3,375,000	1,250,000	SH		DFND		1,250,000	0	0
CONNECT BI	ADS	207523101	147,920	268,946	SH		DFND		268,946	0	0
CONTEXT TH	COM	21077P108	41,390	67,631	SH		DFND		67,631	0	0
COOPER COS	COM	216648501	9,375	15,000	SH	Put	DFND		15,000	0	0
COOPER COS	COM	216648501	1,879,149	22,278	SH		DFND		22,278	0	0
CORVUS PHA	COM	221015100	66,303	20,850	SH		DFND		20,850	0	0
COSTCO WHS	COM	22160K105	945,780	1,000	SH		DFND		1,000	0	0
CRINETICS	COM	22663K107	1,362,160	40,613	SH		DFND		40,613	0	0
CULLINAN T	COM	230031106	249,076	32,903	SH		DFND		32,903	0	0
DADA NEXUS	ADS	23344D108	1,145,124	618,986	SH		DFND		618,986	0	0
DAY ONE BI	COM	23954D109	898,072	113,250	SH		DFND		113,250	0	0
DELTA AIR	COMNE	247361702	4,844,570	111,114	SH		DFND		111,114	0	0
DEXCOM INC	COM	252131107	2,448,265	35,851	SH		DFND		35,851	0	0
DISC MEDIC	COM	254604101	676,146	13,621	SH		DFND		13,621	0	0
DOLLAR GEN	COM	256677105	1,318,950	15,000	SH		DFND		15,000	0	0
DOLLAR TRE	COM	256746108	1,118,543	14,900	SH		DFND		14,900	0	0
DRAFTKINGS	NOTE3	26142RAB0	1,760,000	2,000,000	PRN		DFND		2,000,000	0	0
DYNE THERA	COM	26818M108	224,074	21,422	SH		DFND		21,422	0	0
EHANG HLDG	ADS	26853E102	208,900	10,000	SH		DFND		10,000	0	0
EDGEWISE T	COM	28036F105	168,750	45,000	SH	Put	DFND		45,000	0	0
EDGEWISE T	COM	28036F105	880,308	40,014	SH		DFND		40,014	0	0
EDWARDS LI	COM	28176E108	791,482	10,920	SH		DFND		10,920	0	0
EMBRAER S.	SPONS	29082A107	9,491,559	205,445	SH		DFND		205,445	0	0
ENERGY TRA	COM	29273V100	49,600	320,000	SH	Call	DFND		320,000	0	0
ENTERGY CO	COM	29364G103	12,276,364	143,600	SH		DFND		143,600	0	0
ENVVENO ME	COM	29415J106	778,562	296,031	SH		DFND		296,031	0	0
ERASCA INC	COM	29479A108	103,609	75,627	SH		DFND		75,627	0	0
EVOLV TECH	COMCL	30049H102	1,342,296	430,223	SH		DFND		430,223	0	0
EVOLV TECH	*WEXP	30049H110	77,007	463,341	SH		DFND		463,341	0	0
META PLATF	COM	30303M102	452,000	16,000	SH	Put	DFND		16,000	0	0
FIRSTENERG	COM	337932107	44,850	26,000	SH	Put	DFND		26,000	0	0
FORD MTR C	COM	345370860	115,300	195,500	SH	Put	DFND		195,500	0	0
FORTIVE CO	COM	34959J108	5,949,534	81,300	SH		DFND		81,300	0	0
FUBOTV INC	NOTE3	35953DAB0	13,027,500	13,500,000	PRN		DFND		13,500,000	0	0
FULL TRUCK	SPONS	35969L108	3,291,468	257,750	SH		DFND		257,750	0	0
FUTU HLDGS	SPONA	36118L106	5,621,267	54,922	SH		DFND		54,922	0	0
GAP INC	COM	364760108	1,030,500	50,000	SH		DFND		50,000	0	0
GENERAL MT	COM	37045V100	1,895,309	40,300	SH		DFND		40,300	0	0
GENMAB A/S	SPONS	372303206	1,407,352	71,877	SH		DFND		71,877	0	0
GILEAD SCI	COM	375558103	7,020	26,000	SH	Put	DFND		26,000	0	0
GRAPHIC PA	COM	388689101	10,674,752	411,200	SH		DFND		411,200	0	0
HALOZYME T	NOTE1	40637HAF6	19,282,500	15,000,000	PRN		DFND		15,000,000	0	0
HARLEY DAV	COM	412822108	642,000	240,000	SH	Put	DFND		240,000	0	0
HERTZ GLOB	COM	42806J700	2,148,225	1,194,300	SH	Put	DFND		1,194,300	0	0
HONEYWELL	COM	438516106	4,923,188	23,250	SH		DFND		23,250	0	0
HUBBELL IN	COM	443510607	2,978,190	9,000	SH		DFND		9,000	0	0
IRHYTHM TE	COM	450056106	1,413,808	13,506	SH		DFND		13,506	0	0
IDEAYA BIO	COM	45166A102	1,137,984	69,474	SH		DFND		69,474	0	0
IMMUNOCORE	ADS	45258D105	1,340,965	45,196	SH		DFND		45,196	0	0
IMMUNIC IN	COM	4525EP101	53,263	48,865	SH		DFND		48,865	0	0
INCYTE COR	COM	45337C102	70,750	55,000	SH	Call	DFND		55,000	0	0
INCYTE COR	COM	45337C102	2,476,677	40,903	SH		DFND		40,903	0	0
INFINERA C	NOTE3	45667GAG8	1,596,212	1,250,000	PRN		DFND		1,250,000	0	0
INGERSOLL	COM	45687V106	1,200,450	15,000	SH		DFND		15,000	0	0
MULTISENSO	*WEXP	456948116	7,714	142,585	SH		DFND		142,585	0	0
INSMED INC	COMPA	457669307	1,939,826	25,427	SH		DFND		25,427	0	0
INSPIRE ME	COM	457730109	1,274,240	8,000	SH		DFND		8,000	0	0
INOVIO PHA	COMSH	45773H409	47,881	29,375	SH		DFND		29,375	0	0
INOZYME PH	COM	45790W108	31,657	34,788	SH		DFND		34,788	0	0
INTERNATIO	COM	460146103	10,067,145	188,700	SH		DFND		188,700	0	0
INVESCO QQ	COM	46090E103	71,760	16,000	SH	Put	DFND		16,000	0	0
INTRA-CELL	COM	46116X101	407,782,265	3,091,133	SH		DFND		3,091,133	0	0
IONIS PHAR	COM	462222100	2,738,802	90,779	SH		DFND		90,779	0	0
IQVIA HLDG	COM	46266C105	881,500	5,000	SH		DFND		5,000	0	0
ISHARES IN	MSCIB	464286400	2,585,000	100,000	SH		DFND		100,000	0	0
ISHARES TR	COM	464287432	1,679,250	1,650,000	SH	Call	DFND		1,650,000	0	0
ISHARES TR	COM	464287655	172,050	45,000	SH	Put	DFND		45,000	0	0
PERSPECTIV	COMNE	46489V302	204,608	96,060	SH		DFND		96,060	0	0
ITAU UNIBA	SPONA	465562106	9,842,734	1,789,588	SH		DFND		1,789,588	0	0
JANUX THER	COM	47103J105	406,080	15,040	SH		DFND		15,040	0	0
KALA BIO I	COMNE	483119202	979,354	170,917	SH		DFND		170,917	0	0
KALVISTA P	COM	483497103	1,958,246	169,692	SH		DFND		169,692	0	0
KANZHUN LI	SPONS	48553T106	2,741,310	143,000	SH		DFND		143,000	0	0
KARYOPHARM	COMNE	48576U205	88,414	23,640	SH		DFND		23,640	0	0
KASPI KZ J	SPONS	48581R205	5,758,557	62,020	SH		DFND		62,020	0	0
KEROS THER	COM	492327101	1,177,128	115,518	SH		DFND		115,518	0	0
KINDER MOR	COM	49456B101	4,125,438	144,600	SH		DFND		144,600	0	0
KROGER CO	COM	501044101	1,015,350	15,000	SH		DFND		15,000	0	0
LPL FINL H	COM	50212V100	2,453,550	7,500	SH		DFND		7,500	0	0
L3HARRIS T	COM	502431109	3,981,076	19,020	SH		DFND		19,020	0	0
LARIMAR TH	COM	517125100	387,058	180,027	SH		DFND		180,027	0	0
LAS VEGAS	COM	517834107	286,705	37,200	SH	Put	DFND		37,200	0	0
LEXINFINTE	ADR	528877103	11,217,558	1,111,750	SH		DFND		1,111,750	0	0
LIONSGATE	COM	53626M104	261,450	35,000	SH		DFND		35,000	0	0
LIVE NATIO	COM	538034109	370,450	32,500	SH	Put	DFND		32,500	0	0
LUCID GROU	COM	549498103	3,150,652	2,840,100	SH	Put	DFND		2,840,100	0	0
MGM RESORT	COM	552953101	751,645	82,600	SH	Put	DFND		82,600	0	0
MAGNITE IN	COM	55955D100	48,150	107,000	SH	Call	DFND		107,000	0	0
MASTERCARD	CLA	57636Q104	5,097,516	9,300	SH		DFND		9,300	0	0
MATTEL INC	COM	577081102	18,828,233	969,029	SH		DFND		969,029	0	0
MEDICAL PP	COM	58463J304	128,862	396,500	SH	Put	DFND		396,500	0	0
MELCO RESO	ADR	585464100	404,736	76,800	SH		DFND		76,800	0	0
MERCADOLIB	COM	58733R102	8,739,898	4,480	SH		DFND		4,480	0	0
MERSANA TH	COM	59045L106	33,619	97,731	SH		DFND		97,731	0	0
MICROSOFT	COM	594918104	1,799,620	4,794	SH		DFND		4,794	0	0
MICROSTRAT	SERIE	594972887	1,681,100	20,000	SH		DFND		20,000	0	0
MINERALYS	COM	603170101	1,164,766	73,348	SH		DFND		73,348	0	0
MIRUM PHAR	COM	604749101	1,016,328	22,560	SH		DFND		22,560	0	0
MONEYLION	CLA	60938K304	37,727,963	436,111	SH		DFND		436,111	0	0
NRG ENERGY	COMNE	629377508	5,590,710	58,566	SH		DFND		58,566	0	0
NEKTAR THE	COM	640268108	13,548	19,923	SH		DFND		19,923	0	0
NEUROGENE	COM	64135M105	655,936	56,015	SH		DFND		56,015	0	0
XPLR INFRA	COM	65341B106	164,800	20,600	SH	Put	DFND		20,600	0	0
NISOURCE I	COM	65473P105	11,118,561	277,340	SH		DFND		277,340	0	0
NORFOLK SO	COM	655844108	11,395,564	48,113	SH		DFND		48,113	0	0
NVIDIA COR	COM	67066G104	14,916,881	137,635	SH		DFND		137,635	0	0
NUVATION B	COMCL	67080N101	1,042,129	592,119	SH		DFND		592,119	0	0
OCCIDENTAL	COM	674599105	24,650	90,000	SH	Put	DFND		90,000	0	0
OCCIDENTAL	COM	674599105	23,021,504	466,400	SH		DFND		466,400	0	0
OCULAR THE	COM	67576A100	123,000	120,000	SH	Call	DFND		120,000	0	0
OCULAR THE	COM	67576A100	1,893,801	258,363	SH		DFND		258,363	0	0
ONECONNECT	SPONS	68248T204	557,822	83,257	SH		DFND		83,257	0	0
ONEMAIN HL	COM	68268W103	135,080	34,400	SH	Put	DFND		34,400	0	0
ORIC PHARM	COM	68622P109	265,842	47,642	SH		DFND		47,642	0	0
ORTHOPEDIA	COM	68752L100	1,843,851	74,862	SH		DFND		74,862	0	0
ORTHOFIX M	COM	68752M108	1,452,552	89,059	SH		DFND		89,059	0	0
PTC THERAP	COM	69366J200	1,190,069	23,353	SH		DFND		23,353	0	0
PALVELLA T	COM	697947109	1,362,105	48,664	SH		DFND		48,664	0	0
PARKER-HAN	COM	701094104	3,938,868	6,480	SH		DFND		6,480	0	0
PELOTON IN	COM	70614W100	588,262	290,500	SH	Put	DFND		290,500	0	0
PELOTON IN	NOTE2	70614WAB6	25,847,640	27,352,000	PRN		DFND		27,352,000	0	0
PEPGEN INC	COM	713317105	37,315	26,559	SH		DFND		26,559	0	0
PDD HOLDIN	SPONS	722304102	5,006,205	42,300	SH		DFND		42,300	0	0
POOL CORP	COM	73278L105	2,458,935	7,724	SH		DFND		7,724	0	0
PRAXIS PRE	COMNE	74006W207	1,014,651	26,793	SH		DFND		26,793	0	0
PROCEPT BI	COM	74276L105	27,375	15,000	SH	Put	DFND		15,000	0	0
PROCEPT BI	COM	74276L105	1,631,280	28,000	SH		DFND		28,000	0	0
PROTAGONIS	COM	74366E102	7,500	20,000	SH	Call	DFND		20,000	0	0
PROTAGONIS	COM	74366E102	645,122	13,340	SH		DFND		13,340	0	0
RELAY THER	COM	75943R102	1,003,198	382,900	SH		DFND		382,900	0	0
REPLIMUNE	COM	76029N106	2,441,595	250,420	SH		DFND		250,420	0	0
REPUBLIC S	COM	760759100	21,358,512	88,200	SH		DFND		88,200	0	0
REZOLUTE I	COMNE	76200L309	1,458,433	502,908	SH		DFND		502,908	0	0
RIGEL PHAR	COM	766559702	1,985,808	110,384	SH		DFND		110,384	0	0
SPDR S&P 5	COM	78462F103	346,375	85,000	SH	Put	DFND		85,000	0	0
SPDR SER T	COM	78464A870	328,500	200,000	SH	Put	DFND		200,000	0	0
SABRE CORP	COM	78573M104	302,984	688,600	SH	Put	DFND		688,600	0	0
SALESFORCE	COM	79466L302	2,387,331	8,896	SH		DFND		8,896	0	0
SCHOLAR RO	COM	80706P103	887,887	27,617	SH		DFND		27,617	0	0
SCHRODINGE	COM	80810D103	1,165,509	59,043	SH		DFND		59,043	0	0
SELECT SEC	COM	81369Y704	361,055	113,500	SH	Put	DFND		113,500	0	0
SHERWIN WI	COM	824348106	7,985,975	22,870	SH		DFND		22,870	0	0
SILENCE TH	ADS	82686Q101	176,642	62,639	SH		DFND		62,639	0	0
SKILLSOFT	CLA	83066P309	802,154	41,692	SH		DFND		41,692	0	0
SOLENO THE	COM	834203309	123,000	15,000	SH	Call	DFND		15,000	0	0
SOLENO THE	COM	834203309	450	18,000	SH	Put	DFND		18,000	0	0
SOLENO THE	COM	834203309	1,216,222	17,022	SH		DFND		17,022	0	0
SOUTHERN C	COM	842587107	19,281,915	209,700	SH		DFND		209,700	0	0
SPOTIFY US	NOTE3	84921RAB6	11,925,000	10,000,000	PRN		DFND		10,000,000	0	0
SPRINGWORK	COM	85205L107	315,000	45,000	SH	Put	DFND		45,000	0	0
SPRINGWORK	COM	85205L107	1,719,658	38,968	SH		DFND		38,968	0	0
STANDARDAE	COM	85423L103	7,992,000	300,000	SH		DFND		300,000	0	0
STARWOOD P	COM	85571B105	159,562	172,500	SH	Put	DFND		172,500	0	0
STEEL DYNA	COM	858119100	4,058,846	32,450	SH		DFND		32,450	0	0
SUTRO BIOP	COM	869367102	18,409	28,278	SH		DFND		28,278	0	0
SYNDAX PHA	COM	87164F105	730,196	59,438	SH		DFND		59,438	0	0
SYNCHRONY	COM	87165B103	57,488	21,900	SH	Put	DFND		21,900	0	0
SYNTEC OPT	*WEXP	87169M113	1,932	32,034	SH		DFND		32,034	0	0
TRI POINTE	COM	87265H109	85,500	18,000	SH	Put	DFND		18,000	0	0
TAL EDUCAT	SPONS	874080104	488,770	37,000	SH		DFND		37,000	0	0
TAPESTRY I	COM	876030107	1,056,150	15,000	SH		DFND		15,000	0	0
TERNS PHAR	COM	880881107	927,757	336,144	SH		DFND		336,144	0	0
TESLA INC	COM	88160R101	1,759,062	12,500	SH	Put	DFND		12,500	0	0
TESLA INC	COM	88160R101	647,900	2,500	SH		DFND		2,500	0	0
TEVA PHARM	SPONS	881624209	1,549,112	100,788	SH		DFND		100,788	0	0
TEVOGEN BI	*WEXP	88165K119	8,979	181,387	SH		DFND		181,387	0	0
TOURMALINE	COM	89157D105	271,651	17,860	SH		DFND		17,860	0	0
TRADEWEB M	CLA	892672106	2,226,900	15,000	SH		DFND		15,000	0	0
TREACE MED	COM	89455T109	1,239,161	147,695	SH		DFND		147,695	0	0
ULTRAGENYX	COM	90400D108	3,179,636	87,811	SH		DFND		87,811	0	0
UNITED PAR	CLB	911312106	8,909,190	81,000	SH		DFND		81,000	0	0
UWM HOLDIN	COMCL	91823B109	780,780	143,000	SH		DFND		143,000	0	0
VALE S A	SPONS	91912E105	3,266,045	327,259	SH		DFND		327,259	0	0
VERASTEM I	COMNE	92337C203	3,147,419	521,960	SH		DFND		521,960	0	0
VERA THERA	COM	92337R101	103,000	40,000	SH	Call	DFND		40,000	0	0
VERA THERA	CLA	92337R101	541,050	22,525	SH		DFND		22,525	0	0
VERONA PHA	SPONS	925050106	1,088,854	17,150	SH		DFND		17,150	0	0
VERU INC	COM	92536C103	49,499	101,018	SH		DFND		101,018	0	0
VIASAT INC	COM	92552V100	425,140	73,300	SH	Put	DFND		73,300	0	0
VIRIDIAN T	COM	92790C104	1,443,546	107,088	SH		DFND		107,088	0	0
VORNADO RL	COM	929042109	32,662	33,500	SH	Put	DFND		33,500	0	0
VULCAN MAT	COM	929160109	8,608,770	36,900	SH		DFND		36,900	0	0
VYNE THERA	COM	92941V308	71,980	45,557	SH		DFND		45,557	0	0
WALMART IN	COM	931142103	2,633,700	30,000	SH		DFND		30,000	0	0
WERIDE INC	SPONS	950915108	425,420	31,350	SH		DFND		31,350	0	0
X FINL	SPONS	98372W202	2,255,114	156,714	SH		DFND		156,714	0	0
XCEL ENERG	COM	98389B100	12,919,883	182,510	SH		DFND		182,510	0	0
X4 PHARMAC	COM	98420X103	59,614	252,602	SH		DFND		252,602	0	0
XEROX HOLD	COM	98421M106	1,218,025	278,300	SH	Put	DFND		278,300	0	0
AGRICULTUR	SHSCL	G0131Y100	3,565,487	334,160	SH		DFND		334,160	0	0
ALDEL FINL	UNIT0	G01558116	2,306,250	225,000	SH		DFND		225,000	0	0
ALCHEMY IN	CLAOR	G0232F109	1,132,802	100,248	SH		DFND		100,248	0	0
AMER SPORT	COMSH	G0260P102	2,138,400	80,000	SH		DFND		80,000	0	0
ARCOS DORA	SHSCL	G0457F107	4,758,277	590,357	SH		DFND		590,357	0	0
AXALTA COA	COM	G0750C108	2,827,742	85,250	SH		DFND		85,250	0	0
BORR DRILL	COM	G1466R173	5,000	200,000	SH	Call	DFND		200,000	0	0
CARTESIAN	CLASS	G19305112	4,236,949	356,946	SH		DFND		356,946	0	0
CARTESIAN	*WEXP	G19305120	7,401	118,982	SH		DFND		118,982	0	0
BOLD EAGLE	UNIT9	G2003N113	4,128,000	400,000	SH		DFND		400,000	0	0
CHURCHILL	UNIT9	G21301125	4,208,033	387,480	SH		DFND		387,480	0	0
COLOMBIER	COMSH	G2283U100	1,597,500	150,000	SH		DFND		150,000	0	0
COLOMBIER	*WEXP	G2283U118	69,300	90,000	SH		DFND		90,000	0	0
CREDICORP	COM	G2519Y108	1,547,176	8,311	SH		DFND		8,311	0	0
CRH PLC	ORD	G25508105	9,986,354	113,520	SH		DFND		113,520	0	0
ANDRETTI A	ORDSH	G26745102	1,522,500	150,000	SH		DFND		150,000	0	0
DIGIASIA C	*WEXP	G27617110	4,423	135,667	SH		DFND		135,667	0	0
EQV VENTUR	CLAOR	G3106N109	2,450,811	242,175	SH		DFND		242,175	0	0
APTIV PLC	COMSH	G3265R107	2,737,000	46,000	SH		DFND		46,000	0	0
ARES ACQUI	SHSCL	G33033104	1,393,750	125,000	SH		DFND		125,000	0	0
ARES ACQUI	*WEXP	G33033120	23,573	82,711	SH		DFND		82,711	0	0
GATES INDL	ORDSH	G39108108	10,096,688	548,435	SH		DFND		548,435	0	0
GRAB HOLDI	CLASS	G4124C109	318,418	70,291	SH		DFND		70,291	0	0
HAYMAKER A	CLASS	G4375F108	1,101,726	100,248	SH		DFND		100,248	0	0
HERBALIFE	COM	G4412G101	366,680	82,400	SH	Put	DFND		82,400	0	0
INVESTCORP	*WEXP	G49219127	4,507	209,630	SH		DFND		209,630	0	0
INTER & CO	CLASS	G4R20B107	4,763,627	869,275	SH		DFND		869,275	0	0
KINIKSA PH	ORDSH	G52694109	3,093,298	139,275	SH		DFND		139,275	0	0
LEGATO MER	ORDSH	G5451A103	2,032,333	193,740	SH		DFND		193,740	0	0
LINDE PLC	SHS	G54950103	12,418,619	26,670	SH		DFND		26,670	0	0
LIVE OAK A	UNIT0	G5509P128	3,024,000	300,000	SH		DFND		300,000	0	0
MOUNTAIN L	UNIT1	G6301B119	2,582,500	250,000	SH		DFND		250,000	0	0
NABORS ENE	CLA	G6363K106	2,561,336	233,912	SH		DFND		233,912	0	0
NEWHOLD IN	UNIT9	G6486E128	2,270,250	225,000	SH		DFND		225,000	0	0
NORWEGIAN	COM	G66721104	267,152	188,800	SH	Put	DFND		188,800	0	0
NORWEGIAN	SHS	G66721104	3,375,468	178,031	SH		DFND		178,031	0	0
OAKTREE AC	SHSCL	G6717R104	4,603,500	450,000	SH		DFND		450,000	0	0
ROADZEN IN	*WEXP	G7606H116	3,686	65,696	SH		DFND		65,696	0	0
ROIVANT SC	SHS	G76279101	432,044	42,819	SH		DFND		42,819	0	0
PENTAIR PL	SHS	G7S00T104	8,100,648	92,600	SH		DFND		92,600	0	0
SHARKNINJA	COMSH	G8068L108	2,919,350	35,000	SH		DFND		35,000	0	0
SILVERBOX	SHSCL	G81354105	2,464,615	242,175	SH		DFND		242,175	0	0
SPARK I AC	ORDSH	G8316B100	722,454	66,832	SH		DFND		66,832	0	0
VINE HILL	ORDSH	G93Y09107	4,835,500	475,000	SH		DFND		475,000	0	0
ALCON AG	ORDSH	H01301128	759,440	8,000	SH		DFND		8,000	0	0
ON HLDG AG	NAMEN	H5919C104	2,196,000	50,000	SH		DFND		50,000	0	0
TRANSOCEAN	COM	H8817H100	926,613	803,400	SH	Put	DFND		803,400	0	0
GLOBANT S	COM	L44385109	3,572,213	30,345	SH		DFND		30,345	0	0
AERCAP HOL	COM	N00985106	59,062	112,500	SH	Call	DFND		112,500	0	0
INFLARX NV	COM	N44821101	59,234	58,073	SH		DFND		58,073	0	0
MERUS N V	COM	N5749R100	1,019,925	24,232	SH		DFND		24,232	0	0
UNIQURE NV	COM	N90064101	29,250	65,000	SH	Call	DFND		65,000	0	0
UNIQURE NV	SHS	N90064101	1,217,823	114,889	SH		DFND		114,889	0	0

Check here if Amendment:	☐ Amendment Number:
This Amendment (Check only one.):	☐ is a restatement. ☐ adds new holdings entries.

Name:	OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)
Address:	ONE NORTH WACKER DRIVE 31ST FLOOR

	CHICAGO, IL 60606
Form 13F File Number:	028-06327

Name:	Charles Mathys
Title:	O'Connor CCO
Phone:	312-525-4114

Number of Other Included Managers:	0
Form 13F Information table Entry Total:	304
Form 13F Information table Value Total:	1226992233 (thousands)

Institutional Investment Manager Filing this Report:

Signature, Place, and Date of Signing:

Report Type (Check only one.):

Form 13F Summary Page

Report Summary:

List of Other Included Managers: