On this page, we present all of the funds holding OLK from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding OLK, with a link to that fund's top holdings. The next columns indicate the amount of OLK stock held by each of the funds holding OLK, followed by the OLK position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 83 funds holding OLK within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by FIL Ltd. For more details on the positions held by FIL Ltd (or by any of the other funds holding OLK), click the fund name in the "Holder" column of the funds-holding-OLK table below.

Holder	Amount	Position Size ($ in 1000's)	As of
FIL Ltd	8,127,000	$204,394	12/31/2023
OLK	8,127,000	$204,394	12/31/2023
Pentwater Capital Management LP	2,617,769	$65,837	12/31/2023
OLK	2,617,769	$65,837	12/31/2023
Woodline Partners LP	2,135,895	$53,718	12/31/2023
OLK	2,135,895	$53,718	12/31/2023
Magnetar Financial LLC	2,049,051	$51,534	12/31/2023
OLK	2,049,051	$51,534	12/31/2023
Westchester Capital Management LLC	2,022,542	$50,867	12/31/2023
OLK	2,022,542	$50,867	12/31/2023
Capital International Investors	2,019,560	$50,792	12/31/2023
OLK	2,019,560	$50,792	12/31/2023
Alpine Associates Management Inc.	1,880,800	$47,302	12/31/2023
OLK	1,880,800	$47,302	12/31/2023
Rock Springs Capital Management LP	1,676,500	$42,164	12/31/2023
OLK	1,676,500	$42,164	12/31/2023
Water Island Capital LLC	1,644,551	$41,360	12/31/2023
OLK	1,644,551	$41,360	12/31/2023
Highland Capital Management Fund Advisors L.P.	1,473,606	$37,061	12/31/2023
OLK	1,473,606	$37,061	12/31/2023
Alliancebernstein L.P.	1,394,867	$35,081	12/31/2023
OLK	1,394,867	$35,081	12/31/2023
Price T Rowe Associates Inc. MD	866,196	$21,785	12/31/2023
OLK	866,196	$21,785	12/31/2023
Man Group plc	750,000	$18,862	12/31/2023
OLK	750,000	$18,862	12/31/2023
Millennium Management LLC	693,490	$17,441	12/31/2023
OLK	693,490	$17,441	12/31/2023
BlackRock Inc.	669,967	$16,850	12/31/2023
OLK	669,967	$16,850	12/31/2023
Tokio Marine Asset Management Co. Ltd.	665,400	$16,735	12/31/2023
OLK	665,400	$16,735	12/31/2023
Qube Research & Technologies Ltd	641,504	$16,134	12/31/2023
OLK	641,504	$16,134	12/31/2023
Gardner Lewis Asset Management L P	413,658	$10,403	12/31/2023
OLK	413,658	$10,403	12/31/2023
Goldman Sachs Group Inc.	400,021	$10,061	12/31/2023
OLK	400,021	$10,061	12/31/2023
TIG Advisors LLC	386,871	$9,730	12/31/2023
OLK	386,871	$9,730	12/31/2023
Gabelli Funds LLC	378,235	$9,513	12/31/2023
OLK	378,235	$9,513	12/31/2023
Principal Financial Group Inc.	358,590	$9,019	12/31/2023
OLK	358,590	$9,019	12/31/2023
Clearbridge Investments LLC	347,892	$8,749	12/31/2023
OLK	347,892	$8,749	12/31/2023
Jennison Associates LLC	340,351	$8,560	12/31/2023
OLK	340,351	$8,560	12/31/2023
Carlson Capital L P	325,000	$8,174	12/31/2023
OLK	325,000	$8,174	12/31/2023
Harvest Management LLC	320,734	$8,066	12/31/2023
OLK	320,734	$8,066	12/31/2023
CNH Partners LLC	262,404	$6,599	12/31/2023
OLK	262,404	$6,599	12/31/2023
New York Life Investment Management LLC	259,305	$6,522	12/31/2023
OLK	259,305	$6,522	12/31/2023
UBS Group AG	253,400	$6,373	12/31/2023
OLK	253,400	$6,373	12/31/2023
Gamco Investors INC. ET AL	167,500	$4,213	12/31/2023
OLK	167,500	$4,213	12/31/2023
FMR LLC	162,700	$4,092	12/31/2023
OLK	162,700	$4,092	12/31/2023
State of Wisconsin Investment Board	140,000	$3,521	12/31/2023
OLK	140,000	$3,521	12/31/2023
Chicago Capital Management LLC	127,500	$3,207	12/31/2023
OLK	127,500	$3,207	12/31/2023
Nomura Holdings Inc.	123,840	$3,115	12/31/2023
OLK	123,840	$3,115	12/31/2023
Carmignac Gestion	123,420	$3,104	12/31/2023
OLK	123,420	$3,104	12/31/2023
Citadel Advisors LLC		$2,941	12/31/2023
OLK	108,167	$2,720	12/31/2023
Call	42,900	$1,079	12/31/2023
Put	34,100	$858	12/31/2023
GABELLI & Co INVESTMENT ADVISERS INC.	116,843	$2,939	12/31/2023
OLK	116,843	$2,939	12/31/2023
ClearAlpha Technologies LP	89,432	$2,249	12/31/2023
OLK	89,432	$2,249	12/31/2023
BCK Capital Management LP	81,713	$2,055	12/31/2023
OLK	81,713	$2,055	12/31/2023
Marshall Wace LLP	81,000	$2,037	12/31/2023
OLK	81,000	$2,037	12/31/2023
Verition Fund Management LLC	75,100	$1,889	12/31/2023
OLK	75,100	$1,889	12/31/2023
Cubist Systematic Strategies LLC	73,170	$1,840	12/31/2023
OLK	73,170	$1,840	12/31/2023
Two Sigma Investments LP	69,715	$1,753	12/31/2023
OLK	69,715	$1,753	12/31/2023
Flow State Investments L.P.	60,000	$1,509	12/31/2023
OLK	60,000	$1,509	12/31/2023
Prelude Capital Management LLC	58,604	$1,474	12/31/2023
OLK	58,604	$1,474	12/31/2023
Picton Mahoney Asset Management	50,000	$1,300	12/31/2023
OLK	50,000	$1,300	12/31/2023
Moore Capital Management LP	50,000	$1,258	12/31/2023
OLK	50,000	$1,258	12/31/2023
Gilder Gagnon Howe & Co. LLC	45,109	$1,134	12/31/2023
OLK	45,109	$1,134	12/31/2023
Virtu Financial LLC	42,173	$1,061	12/31/2023
OLK	42,173	$1,061	12/31/2023
Guggenheim Capital LLC	39,817	$1,001	12/31/2023
OLK	39,817	$1,001	12/31/2023
Voloridge Investment Management LLC	37,481	$943	12/31/2023
OLK	37,481	$943	12/31/2023
Wolverine Asset Management LLC	27,500	$692	12/31/2023
OLK	27,500	$692	12/31/2023
Geode Capital Management LLC	24,642	$620	12/31/2023
OLK	24,642	$620	12/31/2023
CSS LLC IL	20,500	$516	12/31/2023
OLK	20,500	$516	12/31/2023
Morgan Stanley	17,484	$440	12/31/2023
OLK	17,484	$440	12/31/2023
D. E. Shaw & Co. Inc.	15,917	$400	12/31/2023
OLK	15,917	$400	12/31/2023
PenderFund Capital Management Ltd.	15,620	$393	12/31/2023
OLK	15,620	$393	12/31/2023
Renaissance Technologies LLC	13,900	$350	12/31/2023
OLK	13,900	$350	12/31/2023
Tudor Investment Corp Et Al	10,765	$271	12/31/2023
OLK	10,765	$271	12/31/2023
Belvedere Trading LLC		$245	12/31/2023
OLK	9,869	$248	12/31/2023
Put	100	$3	12/31/2023
US Bancorp DE	9,027	$227	12/31/2023
OLK	9,027	$227	12/31/2023
Blackstone Group Inc	8,035	$202	12/31/2023
OLK	8,035	$202	12/31/2023
Barometer Capital Management Inc.	4,600	$116	12/31/2023
OLK	4,600	$116	12/31/2023
Tower Research Capital LLC TRC	3,736	$94	12/31/2023
OLK	3,736	$94	12/31/2023
Assetmark Inc.	2,874	$72	12/31/2023
OLK	2,874	$72	12/31/2023
Vestcor Inc	2,547	$64	12/31/2023
OLK	2,547	$64	12/31/2023
Rhumbline Advisers	1,793	$45	12/31/2023
OLK	1,793	$45	12/31/2023
Bank of America Corp DE	1,315	$33	12/31/2023
OLK	1,315	$33	12/31/2023
Advisor Group Holdings Inc.	261	$6	12/31/2023
OLK	261	$6	12/31/2023
Wells Fargo & Company MN	100	$3	12/31/2023
OLK	100	$3	12/31/2023
Barclays PLC	100	$3	12/31/2023
OLK	100	$3	12/31/2023
Eagle Bay Advisors LLC	100	$3	12/31/2023
OLK	100	$3	12/31/2023
GAMMA Investing LLC	95	$2	03/31/2024
OLK	95	$2	03/31/2024
The PNC Financial Services Group Inc.	32	$1	12/31/2023
OLK	32	$1	12/31/2023
Royal Bank of Canada	27	$1	12/31/2023
OLK	27	$1	12/31/2023
Quadrant Capital Group LLC	56	$1	12/31/2023
OLK	56	$1	12/31/2023
Russell Investments Group Ltd.	37	$1	12/31/2023
OLK	37	$1	12/31/2023
Bell Investment Advisors Inc	20	$1	12/31/2023
OLK	20	$1	12/31/2023
Proequities Inc.	0	$0	12/31/2023
OLK	0	$0	12/31/2023
Northwestern Mutual Wealth Management Co.	17	$0	12/31/2023
OLK	17	$0	12/31/2023
Simplex Trading LLC		$-10	03/31/2024
Put	16,000	$376	03/31/2024
Call	15,300	$359	03/31/2024
OLK	292	$7	03/31/2024
Schonfeld Strategic Advisors LLC		$-629	12/31/2023
Put	25,000	$629	12/31/2023
Group One Trading L.P.		$-719	12/31/2023
Put	35,000	$880	12/31/2023
Call	3,900	$98	12/31/2023
OLK	2,494	$63	12/31/2023
Susquehanna International Group LLP	10,200	$-1,388	12/31/2023
Put	65,400	$1,645	12/31/2023
Call	10,200	$257	12/31/2023

See Summary: Institutional Holders of OLK
See Details: Top 10 Hedge Funds Holding OLK
Also See: OLK Holdings Changes

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OLK — Performance