On this page, we present all of the funds holding PORT from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding PORT, with a link to that fund's top holdings. The next columns indicate the amount of PORT stock held by each of the funds holding PORT, followed by the PORT position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 47 funds holding PORT within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by Rivernorth Capital Management LLC. For more details on the positions held by Rivernorth Capital Management LLC (or by any of the other funds holding PORT), click the fund name in the "Holder" column of the funds-holding-PORT table below.

Holder	Amount	Position Size ($ in 1000's)	As of
Rivernorth Capital Management LLC		$7,450	12/31/2023
PORT	700,000	$7,448	12/31/2023
PORT.WT	74,949	$2	12/31/2023
Radcliffe Capital Management L.P.		$5,066	12/31/2023
PORT	475,791	$5,060	12/31/2023
PORT.WT	202,999	$6	12/31/2023
Sandia Investment Management LP	450,000	$4,786	12/31/2023
PORT	450,000	$4,786	12/31/2023
Marshall Wace LLP		$4,737	12/31/2023
Call	445,667	$4,737	12/31/2023
Periscope Capital Inc.		$3,960	12/31/2023
PORT	370,000	$3,935	12/31/2023
PORT.WT	1,016,592	$25	12/31/2023
Exos TFP Holdings LLC	262,783	$2,791	12/31/2023
PORT	262,783	$2,791	12/31/2023
Cowen AND Company LLC		$2,155	12/31/2023
PORT	200,000	$2,127	12/31/2023
PORT.WT	1,111,900	$28	12/31/2023
Boothbay Fund Management LLC	200,000	$2,127	12/31/2023
PORT	200,000	$2,127	12/31/2023
ATW Spac Management LLC	200,000	$2,127	12/31/2023
PORT	200,000	$2,127	12/31/2023
Walleye Capital LLC		$1,755	12/31/2023
PORT	164,000	$1,744	12/31/2023
PORT.WT	439,894	$11	12/31/2023
Cantor Fitzgerald L. P.	111,986	$1,191	12/31/2023
PORT	111,986	$1,191	12/31/2023
Walleye Trading LLC		$921	12/31/2023
PORT	86,000	$915	12/31/2023
PORT.WT	247,441	$6	12/31/2023
JPMorgan Chase & Co.	79,000	$840	12/31/2023
PORT	79,000	$840	12/31/2023
Robinson Capital Management LLC		$351	12/31/2023
PORT	32,943	$351	12/31/2023
PORT.WT	5,278	$0	12/31/2023
Virtu Financial LLC	23,959	$255	12/31/2023
PORT	23,959	$255	12/31/2023
Toroso Investments LLC	12,877	$137	12/31/2023
PORT	12,877	$137	12/31/2023
Flow Traders U.S. LLC		$118	12/31/2023
PORT	11,056	$117	12/31/2023
PORT.WT	23,924	$1	12/31/2023
Clear Street LLC		$19	12/31/2023
PORT.U	1,430	$15	12/31/2023
PORT	347	$4	12/31/2023
PORT.WT	8,503	$0	12/31/2023
Aristeia Capital LLC		$15	12/31/2023
PORT.WT	500,000	$15	12/31/2023
Saba Capital Management L.P.		$14	12/31/2023
PORT.WT	458,794	$14	12/31/2023
CNH Partners LLC		$12	12/31/2023
PORT.WT	477,203	$12	12/31/2023
Calamos Advisors LLC		$12	12/31/2023
PORT.WT	500,000	$12	12/31/2023
Apollo Management Holdings L.P.		$9	12/31/2023
PORT.WT	354,174	$9	12/31/2023
D. E. Shaw & Co. Inc.		$8	12/31/2023
PORT.WT	330,589	$8	12/31/2023
Davidson Kempner Capital Management LP		$8	12/31/2023
PORT.WT	300,000	$8	12/31/2023
Cubist Systematic Strategies LLC		$8	12/31/2023
PORT.WT	328,287	$8	12/31/2023
Millennium Management LLC		$6	12/31/2023
Call	232,500	$6	12/31/2023
Kepos Capital LP		$6	12/31/2023
PORT.WT	250,000	$6	12/31/2023
Q Global Advisors LLC		$5	12/31/2023
PORT.WT	192,867	$5	12/31/2023
Sculptor Capital LP		$4	12/31/2023
PORT.WT	132,962	$4	12/31/2023
TENOR CAPITAL MANAGEMENT Co. L.P.		$4	12/31/2023
PORT.WT	150,000	$4	12/31/2023
LMR Partners LLP		$4	12/31/2023
PORT.WT	175,000	$4	12/31/2023
Kim LLC		$4	12/31/2023
PORT.WT	150,000	$4	12/31/2023
Whitebox Advisors LLC		$2	12/31/2023
PORT.WT	100,000	$2	12/31/2023
Verition Fund Management LLC		$2	12/31/2023
PORT.WT	100,000	$2	12/31/2023
UBS Group AG		$2	12/31/2023
PORT.U	162	$2	12/31/2023
Atalaya Capital Management LP		$2	12/31/2023
PORT.WT	100,000	$2	12/31/2023
Sea Otter Advisors LLC		$2	12/31/2023
PORT.WT	47,511	$2	12/31/2023
Citigroup Inc.		$1	12/31/2023
Call	50,000	$1	12/31/2023
OMERS ADMINISTRATION Corp		$1	12/31/2023
PORT.WT	20,000	$1	12/31/2023
CSS LLC IL		$1	12/31/2023
PORT.WT	57,343	$1	12/31/2023
Linden Advisors LP		$1	12/31/2023
PORT.WT	25,100	$1	12/31/2023
Hudson Bay Capital Management LP		$1	12/31/2023
PORT.WT	56,640	$1	12/31/2023
Citadel Advisors LLC		$1	12/31/2023
PORT.WT	20,528	$1	12/31/2023
Parallax Volatility Advisers L.P.		$1	12/31/2023
PORT.WT	50,103	$1	12/31/2023
Lynwood Capital Management Inc.		$1	12/31/2023
PORT.WT	26,144	$1	12/31/2023
Proequities Inc.		$0	12/31/2023
PORT	0	$0	12/31/2023
PORT.U	0	$0	12/31/2023
PORT.WT	0	$0	12/31/2023
Morgan Stanley	500	$0	12/31/2023
PORT.WT	500	$0	12/31/2023