On this page, we present all of the funds holding PFSI from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding PFSI, with a link to that fund's top holdings. The next columns indicate the amount of PFSI stock held by each of the funds holding PFSI, followed by the PFSI position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 198 funds holding PFSI within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by T. Rowe Price Investment Management Inc.. For more details on the positions held by T. Rowe Price Investment Management Inc. (or by any of the other funds holding PFSI), click the fund name in the "Holder" column of the funds-holding-PFSI table below.

Holder	Amount	Position Size ($ in 1000's)	As of
T. Rowe Price Investment Management Inc.	4,912,601	$434,127	12/31/2023
PFSI	4,912,601	$434,127	12/31/2023
MFN Partners Management LP	4,531,792	$400,474	12/31/2023
PFSI	4,531,792	$400,474	12/31/2023
Dimensional Fund Advisors LP	2,691,512	$237,851	12/31/2023
PFSI	2,691,512	$237,851	12/31/2023
Vanguard Group Inc.	2,610,041	$230,649	12/31/2023
PFSI	2,610,041	$230,649	12/31/2023
BlackRock Inc.	2,168,048	$191,590	12/31/2023
PFSI	2,168,048	$191,590	12/31/2023
Senvest Management LLC	1,183,151	$104,555	12/31/2023
PFSI	1,183,151	$104,555	12/31/2023
Invesco Ltd.	966,112	$85,375	12/31/2023
PFSI	966,112	$85,375	12/31/2023
State Street Corp	842,125	$74,419	12/31/2023
PFSI	842,125	$74,419	12/31/2023
JPMorgan Chase & Co.	713,707	$63,070	12/31/2023
PFSI	713,707	$63,070	12/31/2023
Citadel Advisors LLC		$60,147	12/31/2023
PFSI	678,628	$59,970	12/31/2023
Call	208,800	$18,452	12/31/2023
Put	206,800	$18,275	12/31/2023
Geode Capital Management LLC	579,268	$51,196	12/31/2023
PFSI	579,268	$51,196	12/31/2023
Charles Schwab Investment Management Inc.	396,745	$35,060	12/31/2023
PFSI	396,745	$35,060	12/31/2023
Goldman Sachs Group Inc.		$34,729	12/31/2023
PFSI	368,097	$32,529	12/31/2023
Call	24,900	$2,200	12/31/2023
Northern Trust Corp	391,127	$34,564	12/31/2023
PFSI	391,127	$34,564	12/31/2023
Epoch Investment Partners Inc.	387,341	$34,229	12/31/2023
PFSI	387,341	$34,229	12/31/2023
Norges Bank	353,716	$31,258	12/31/2023
PFSI	353,716	$31,258	12/31/2023
Basswood Capital Management L.L.C.	342,380	$30,256	12/31/2023
PFSI	342,380	$30,256	12/31/2023
Boston Partners	319,623	$28,191	12/31/2023
PFSI	319,623	$28,191	12/31/2023
Conversant Capital LLC	300,000	$26,511	12/31/2023
PFSI	300,000	$26,511	12/31/2023
American Century Companies Inc.	294,823	$26,054	12/31/2023
PFSI	294,823	$26,054	12/31/2023
Bank of New York Mellon Corp	177,315	$16,152	03/31/2024
PFSI	177,315	$16,152	03/31/2024
Principal Financial Group Inc.	152,558	$13,897	03/31/2024
PFSI	152,558	$13,897	03/31/2024
Arrowstreet Capital Limited Partnership	154,850	$13,684	12/31/2023
PFSI	154,850	$13,684	12/31/2023
Morgan Stanley	154,784	$13,678	12/31/2023
PFSI	154,784	$13,678	12/31/2023
Alliancebernstein L.P.	148,593	$13,131	12/31/2023
PFSI	148,593	$13,131	12/31/2023
Jacobs Levy Equity Management Inc.	138,692	$12,256	12/31/2023
PFSI	138,692	$12,256	12/31/2023
Brandywine Global Investment Management LLC	137,280	$12,131	12/31/2023
PFSI	137,280	$12,131	12/31/2023
Cambria Investment Management L.P.	134,670	$11,901	12/31/2023
PFSI	134,670	$11,901	12/31/2023
Price T Rowe Associates Inc. MD	122,177	$10,798	12/31/2023
PFSI	122,177	$10,798	12/31/2023
Nuveen Asset Management LLC	114,313	$10,102	12/31/2023
PFSI	114,313	$10,102	12/31/2023
Man Group plc	104,307	$9,218	12/31/2023
PFSI	104,307	$9,218	12/31/2023
D. E. Shaw & Co. Inc.		$9,040	12/31/2023
Call	117,200	$10,357	12/31/2023
Put	14,900	$1,317	12/31/2023
Macquarie Group Ltd.	94,441	$8,346	12/31/2023
PFSI	94,441	$8,346	12/31/2023
Swiss National Bank	83,600	$7,615	03/31/2024
PFSI	83,600	$7,615	03/31/2024
UBS Group AG	82,027	$7,249	12/31/2023
PFSI	82,027	$7,249	12/31/2023
Philadelphia Financial Management of San Francisco LLC	79,951	$7,065	12/31/2023
PFSI	79,951	$7,065	12/31/2023
Jane Street Group LLC		$6,828	12/31/2023
Call	139,200	$12,301	12/31/2023
Put	106,500	$9,411	12/31/2023
PFSI	44,568	$3,938	12/31/2023
Assenagon Asset Management S.A.	67,866	$6,182	03/31/2024
PFSI	67,866	$6,182	03/31/2024
Bridgeway Capital Management Inc.	68,800	$6,080	12/31/2023
PFSI	68,800	$6,080	12/31/2023
South Dakota Investment Council	66,039	$6,015	03/31/2024
PFSI	66,039	$6,015	03/31/2024
TD Asset Management Inc.	67,312	$5,948	12/31/2023
PFSI	67,312	$5,948	12/31/2023
Advantage Alpha Capital Partners LP	65,319	$5,772	12/31/2023
PFSI	65,319	$5,772	12/31/2023
Allianz Asset Management GmbH	61,991	$5,478	12/31/2023
PFSI	61,991	$5,478	12/31/2023
Federated Hermes Inc.	60,346	$5,333	12/31/2023
PFSI	60,346	$5,333	12/31/2023
Credit Suisse AG	54,606	$4,826	12/31/2023
PFSI	54,606	$4,826	12/31/2023
UBS Asset Management Americas Inc.	53,664	$4,742	12/31/2023
PFSI	53,664	$4,742	12/31/2023
Picton Mahoney Asset Management	47,334	$4,182	12/31/2023
PFSI	47,334	$4,182	12/31/2023
Prescott Group Capital Management L.L.C.	46,015	$4,066	12/31/2023
PFSI	46,015	$4,066	12/31/2023
Barclays PLC	44,882	$3,966	12/31/2023
PFSI	44,882	$3,966	12/31/2023
First Trust Advisors LP	44,838	$3,962	12/31/2023
PFSI	44,838	$3,962	12/31/2023
Denali Advisors LLC	41,600	$3,789	03/31/2024
PFSI	41,600	$3,789	03/31/2024
Rhumbline Advisers	42,683	$3,772	12/31/2023
PFSI	42,683	$3,772	12/31/2023
PEAK6 Investments LLC		$3,765	12/31/2023
Call	65,100	$5,753	12/31/2023
Put	22,500	$1,988	12/31/2023
California State Teachers Retirement System	41,982	$3,710	12/31/2023
PFSI	41,982	$3,710	12/31/2023
EAM Investors LLC	41,504	$3,668	12/31/2023
PFSI	41,504	$3,668	12/31/2023
Victory Capital Management Inc.	39,284	$3,578	03/31/2024
PFSI	39,284	$3,578	03/31/2024
Legal & General Group Plc	39,048	$3,451	12/31/2023
PFSI	39,048	$3,451	12/31/2023
Qube Research & Technologies Ltd	38,728	$3,422	12/31/2023
PFSI	38,728	$3,422	12/31/2023
EAM Global Investors LLC	38,715	$3,421	12/31/2023
PFSI	38,715	$3,421	12/31/2023
QRG Capital Management Inc.	33,892	$3,087	03/31/2024
PFSI	33,892	$3,087	03/31/2024
State of New Jersey Common Pension Fund D	32,170	$2,930	03/31/2024
PFSI	32,170	$2,930	03/31/2024
Mercer Global Advisors Inc. ADV	30,394	$2,686	12/31/2023
PFSI	30,394	$2,686	12/31/2023
Quantbot Technologies LP	28,209	$2,570	03/31/2024
PFSI	28,209	$2,570	03/31/2024
Mitsubishi UFJ Trust & Banking Corp	26,530	$2,344	12/31/2023
PFSI	26,530	$2,344	12/31/2023
New York State Common Retirement Fund	25,314	$2,306	03/31/2024
PFSI	25,314	$2,306	03/31/2024
Ameriprise Financial Inc.	24,921	$2,202	12/31/2023
PFSI	24,921	$2,202	12/31/2023
Campbell & CO Investment Adviser LLC	24,753	$2,187	12/31/2023
PFSI	24,753	$2,187	12/31/2023
Simplex Trading LLC		$2,186	03/31/2024
Call	51,200	$4,663	03/31/2024
Put	27,200	$2,477	03/31/2024
AQR Capital Management LLC	23,980	$2,119	12/31/2023
PFSI	23,980	$2,119	12/31/2023
Interval Partners LP	23,028	$2,035	12/31/2023
PFSI	23,028	$2,035	12/31/2023
Great West Life Assurance Co. Can	22,744	$1,999	12/31/2023
PFSI	22,744	$1,999	12/31/2023
Dakota Wealth Management	21,230	$1,934	03/31/2024
PFSI	21,230	$1,934	03/31/2024
Two Sigma Investments LP	21,400	$1,891	12/31/2023
PFSI	21,400	$1,891	12/31/2023
Palogic Value Management L.P.	21,103	$1,865	12/31/2023
PFSI	21,103	$1,865	12/31/2023
E. Ohman J or Asset Management AB	20,066	$1,773	12/31/2023
PFSI	20,066	$1,773	12/31/2023
GTS Securities LLC		$1,767	12/31/2023
Call	26,300	$2,324	12/31/2023
Put	6,300	$557	12/31/2023
Russell Investments Group Ltd.	19,246	$1,753	03/31/2024
PFSI	19,246	$1,753	03/31/2024
Janus Henderson Group PLC	19,720	$1,742	12/31/2023
PFSI	19,720	$1,742	12/31/2023
K2 Principal Fund L.P.	19,480	$1,721	12/31/2023
PFSI	19,480	$1,721	12/31/2023
Ensign Peak Advisors Inc	18,350	$1,622	12/31/2023
PFSI	18,350	$1,622	12/31/2023
HighVista Strategies LLC	17,937	$1,585	12/31/2023
PFSI	17,937	$1,585	12/31/2023
Advisory Research Inc.	16,952	$1,498	12/31/2023
PFSI	16,952	$1,498	12/31/2023
LSV Asset Management	15,500	$1,412	03/31/2024
PFSI	15,500	$1,412	03/31/2024
State of Wyoming	15,843	$1,400	12/31/2023
PFSI	15,843	$1,400	12/31/2023
HRT Financial LP	15,312	$1,353	12/31/2023
PFSI	15,312	$1,353	12/31/2023
Tudor Investment Corp Et Al	15,227	$1,346	12/31/2023
PFSI	15,227	$1,346	12/31/2023
The Manufacturers Life Insurance Company	15,155	$1,339	12/31/2023
PFSI	15,155	$1,339	12/31/2023
BNP Paribas Arbitrage SA	13,917	$1,268	03/31/2024
PFSI	13,917	$1,268	03/31/2024
Thrivent Financial for Lutherans	14,059	$1,242	12/31/2023
PFSI	14,059	$1,242	12/31/2023
Capital Fund Management S.A.		$1,175	12/31/2023
Call	13,300	$1,175	12/31/2023
MetLife Investment Management LLC	13,249	$1,171	12/31/2023
PFSI	13,249	$1,171	12/31/2023
Deutsche Bank AG	13,154	$1,162	12/31/2023
PFSI	13,154	$1,162	12/31/2023
Mirae Asset Global Investments Co. Ltd.	12,726	$1,159	03/31/2024
PFSI	12,726	$1,159	03/31/2024
American International Group Inc.	12,691	$1,122	12/31/2023
PFSI	12,691	$1,122	12/31/2023
Arizona State Retirement System	11,663	$1,062	03/31/2024
PFSI	11,663	$1,062	03/31/2024
Putnam Investments LLC	11,721	$1,036	12/31/2023
PFSI	11,721	$1,036	12/31/2023
Dynamic Technology Lab Private Ltd	11,532	$1,019	12/31/2023
PFSI	11,532	$1,019	12/31/2023
MorganRosel Wealth Management LLC	10,811	$985	03/31/2024
PFSI	10,811	$985	03/31/2024
Quadrature Capital Ltd	10,938	$967	12/31/2023
PFSI	10,938	$967	12/31/2023
Voya Investment Management LLC	10,237	$905	12/31/2023
PFSI	10,237	$905	12/31/2023
Citigroup Inc.	10,232	$904	12/31/2023
PFSI	10,232	$904	12/31/2023
Royal Bank of Canada	9,364	$828	12/31/2023
PFSI	9,364	$828	12/31/2023
Schonfeld Strategic Advisors LLC	9,281	$820	12/31/2023
PFSI	9,281	$820	12/31/2023
Sei Investments Co.	8,870	$808	03/31/2024
PFSI	8,870	$808	03/31/2024
Wells Fargo & Company MN	9,107	$805	12/31/2023
PFSI	9,107	$805	12/31/2023
Zurcher Kantonalbank Zurich Cantonalbank	8,619	$785	03/31/2024
PFSI	8,619	$785	03/31/2024
Tower Research Capital LLC TRC	8,026	$709	12/31/2023
PFSI	8,026	$709	12/31/2023
State Board of Administration of Florida Retirement System	7,283	$644	12/31/2023
PFSI	7,283	$644	12/31/2023
Bank of America Corp DE		$642	12/31/2023
PFSI	39,872	$3,523	12/31/2023
Put	32,600	$2,881	12/31/2023
FMR LLC	6,826	$603	12/31/2023
PFSI	6,826	$603	12/31/2023
Marshall Wace LLP	6,665	$589	12/31/2023
PFSI	6,665	$589	12/31/2023
ClearAlpha Technologies LP	6,511	$575	12/31/2023
PFSI	6,511	$575	12/31/2023
Advisor Group Holdings Inc.	6,222	$550	12/31/2023
PFSI	6,222	$550	12/31/2023
Caxton Associates LP	5,874	$519	12/31/2023
PFSI	5,874	$519	12/31/2023
Handelsbanken Fonder AB	5,800	$513	12/31/2023
PFSI	5,800	$513	12/31/2023
Dark Forest Capital Management LP	5,672	$501	12/31/2023
PFSI	5,672	$501	12/31/2023
One Capital Management LLC	5,608	$496	12/31/2023
PFSI	5,608	$496	12/31/2023
Public Employees Retirement Association of Colorado	5,510	$487	12/31/2023
PFSI	5,510	$487	12/31/2023
Walleye Capital LLC	5,516	$487	12/31/2023
PFSI	5,516	$487	12/31/2023
Edgestream Partners L.P.	5,289	$467	12/31/2023
PFSI	5,289	$467	12/31/2023
Pictet Asset Management Holding SA	5,270	$466	12/31/2023
PFSI	5,270	$466	12/31/2023
Prudential Financial Inc.	5,200	$460	12/31/2023
PFSI	5,200	$460	12/31/2023
Hancock Whitney Corp	4,884	$432	12/31/2023
PFSI	4,884	$432	12/31/2023
State of Wisconsin Investment Board	4,620	$408	12/31/2023
PFSI	4,620	$408	12/31/2023
ProShare Advisors LLC	4,226	$373	12/31/2023
PFSI	4,226	$373	12/31/2023
Vise Technologies Inc.	4,173	$369	12/31/2023
PFSI	4,173	$369	12/31/2023
Teacher Retirement System of Texas	3,578	$326	03/31/2024
PFSI	3,578	$326	03/31/2024
Grantham Mayo Van Otterloo & Co. LLC	3,513	$310	12/31/2023
PFSI	3,513	$310	12/31/2023
Envestnet Asset Management Inc.	3,351	$296	12/31/2023
PFSI	3,351	$296	12/31/2023
Captrust Financial Advisors	3,304	$292	12/31/2023
PFSI	3,304	$292	12/31/2023
CIBC Private Wealth Group LLC	3,258	$288	12/31/2023
PFSI	3,258	$288	12/31/2023
Maverick Capital Ltd.	2,979	$263	12/31/2023
PFSI	2,979	$263	12/31/2023
Contravisory Investment Management Inc.	2,850	$260	03/31/2024
PFSI	2,850	$260	03/31/2024
Hsbc Holdings PLC	2,887	$255	12/31/2023
PFSI	2,887	$255	12/31/2023
Virtu Financial LLC	2,861	$253	12/31/2023
PFSI	2,861	$253	12/31/2023
Creative Planning	2,830	$250	12/31/2023
PFSI	2,830	$250	12/31/2023
Aquatic Capital Management LLC	2,800	$247	12/31/2023
PFSI	2,800	$247	12/31/2023
Nebula Research & Development LLC	2,780	$246	12/31/2023
PFSI	2,780	$246	12/31/2023
Foster & Motley Inc.	2,652	$242	03/31/2024
PFSI	2,652	$242	03/31/2024
Jefferies Financial Group Inc.	2,649	$234	12/31/2023
PFSI	2,649	$234	12/31/2023
Ameritas Investment Partners Inc.	2,643	$234	12/31/2023
PFSI	2,643	$234	12/31/2023
Public Employees Retirement System of Ohio	2,540	$224	12/31/2023
PFSI	2,540	$224	12/31/2023
Cubist Systematic Strategies LLC	2,522	$223	12/31/2023
PFSI	2,522	$223	12/31/2023
TD Waterhouse Canada Inc.	2,620	$222	12/31/2023
PFSI	2,620	$222	12/31/2023
Navellier & Associates Inc	2,500	$221	12/31/2023
PFSI	2,500	$221	12/31/2023
Mariner LLC	2,382	$210	12/31/2023
PFSI	2,382	$210	12/31/2023
SG Americas Securities LLC	2,220	$202	03/31/2024
PFSI	2,220	$202	03/31/2024
Handelsinvest Investeringsforvaltning	2,124	$193	03/31/2024
PFSI	2,124	$193	03/31/2024
Metropolitan Life Insurance Co NY	1,470	$130	12/31/2023
PFSI	1,470	$130	12/31/2023
KBC Group NV	1,114	$101	03/31/2024
PFSI	1,114	$101	03/31/2024
TFO TDC LLC	1,148	$101	12/31/2023
PFSI	1,148	$101	12/31/2023
Amalgamated Bank	855	$78	03/31/2024
PFSI	855	$78	03/31/2024
US Bancorp DE	798	$73	03/31/2024
PFSI	798	$73	03/31/2024
Parkside Financial Bank & Trust	489	$45	03/31/2024
PFSI	489	$45	03/31/2024
West Tower Group LLC	512	$45	12/31/2023
PFSI	512	$45	12/31/2023
CI Investments Inc.	458	$40	12/31/2023
PFSI	458	$40	12/31/2023
Hexagon Capital Partners LLC	368	$34	03/31/2024
PFSI	368	$34	03/31/2024
Nomura Asset Management Co. Ltd.	320	$28	12/31/2023
PFSI	320	$28	12/31/2023
Two Sigma Securities LLC		$27	12/31/2023
Call	9,400	$831	12/31/2023
Put	9,100	$804	12/31/2023
EntryPoint Capital LLC	232	$21	12/31/2023
PFSI	232	$21	12/31/2023
Headlands Technologies LLC	176	$16	03/31/2024
PFSI	176	$16	03/31/2024
Comerica Bank	167	$15	12/31/2023
PFSI	167	$15	12/31/2023
CWM LLC	146	$13	03/31/2024
PFSI	146	$13	03/31/2024
Quadrant Capital Group LLC	148	$13	12/31/2023
PFSI	148	$13	12/31/2023
Covestor Ltd	126	$11	12/31/2023
PFSI	126	$11	12/31/2023
Signaturefd LLC	109	$10	03/31/2024
PFSI	109	$10	03/31/2024
HighMark Wealth Management LLC	105	$10	03/31/2024
PFSI	105	$10	03/31/2024
Principal Securities Inc.	112	$10	12/31/2023
PFSI	112	$10	12/31/2023
Webster Bank N. A.	100	$9	03/31/2024
PFSI	100	$9	03/31/2024
Mitsubishi UFJ Kokusai Asset Management Co. Ltd.	88	$7	12/31/2023
PFSI	88	$7	12/31/2023
GAMMA Investing LLC	53	$5	03/31/2024
PFSI	53	$5	03/31/2024
Lindbrook Capital LLC	46	$4	03/31/2024
PFSI	46	$4	03/31/2024
ClariVest Asset Management LLC	37	$3	03/31/2024
PFSI	37	$3	03/31/2024
JFS Wealth Advisors LLC	34	$3	03/31/2024
PFSI	34	$3	03/31/2024
Harbour Investments Inc.	36	$3	12/31/2023
PFSI	36	$3	12/31/2023
Nisa Investment Advisors LLC	17	$2	03/31/2024
PFSI	17	$2	03/31/2024
Allworth Financial LP	24	$2	03/31/2024
PFSI	24	$2	03/31/2024
Parallel Advisors LLC	17	$2	03/31/2024
PFSI	17	$2	03/31/2024
Global Retirement Partners LLC	17	$2	03/31/2024
PFSI	17	$2	03/31/2024
Ronald Blue Trust Inc.	27	$2	03/31/2024
PFSI	27	$2	03/31/2024
Fortitude Family Office LLC	20	$2	03/31/2024
PFSI	20	$2	03/31/2024
Bell Investment Advisors Inc	22	$2	12/31/2023
PFSI	22	$2	12/31/2023
RFP Financial Group LLC	24	$2	12/31/2023
PFSI	24	$2	12/31/2023
SJS Investment Consulting Inc.	14	$1	03/31/2024
PFSI	14	$1	03/31/2024
DiNuzzo Private Wealth Inc.	10	$1	03/31/2024
PFSI	10	$1	03/31/2024
Private Wealth Management Group LLC	8	$1	03/31/2024
PFSI	8	$1	03/31/2024
Farther Finance Advisors LLC	9	$1	12/31/2023
PFSI	9	$1	12/31/2023
Proequities Inc.		$0	03/31/2024
Put	0	$0	03/31/2024
Call	0	$0	03/31/2024
PFSI	0	$0	03/31/2024
Nelson Van Denburg & Campbell Wealth Management Group LLC	5	$0	03/31/2024
PFSI	5	$0	03/31/2024
TFC Financial Management	1	$0	03/31/2024
PFSI	1	$0	03/31/2024
Squarepoint Ops LLC		$0	12/31/2023
Put	7,100	$627	12/31/2023
PFSI	7,100	$627	12/31/2023
CenterStar Asset Management LLC		$-109	03/31/2024
Put	11,900	$1,084	03/31/2024
Call	10,700	$975	03/31/2024
Wolverine Asset Management LLC		$-742	12/31/2023
Put	8,400	$742	12/31/2023
Susquehanna International Group LLP		$-1,376	03/31/2024
Put	114,400	$10,421	03/31/2024
Call	99,300	$9,045	03/31/2024
Wolverine Trading LLC		$-4,580	12/31/2023
Put	87,500	$7,732	12/31/2023
Call	23,200	$2,050	12/31/2023
PFSI	12,470	$1,102	12/31/2023
Millennium Management LLC		$-5,040	12/31/2023
Put	122,700	$10,843	12/31/2023
PFSI	53,669	$4,743	12/31/2023
Call	12,000	$1,060	12/31/2023
Group One Trading L.P.		$-10,463	12/31/2023
Put	189,500	$16,746	12/31/2023
Call	71,100	$6,283	12/31/2023
Parallax Volatility Advisers L.P.		$-24,302	12/31/2023
Put	280,000	$24,744	12/31/2023
PFSI	5,000	$442	12/31/2023
Saba Capital Management L.P.	367,100	$-32,441	12/31/2023
Put	367,100	$32,441	12/31/2023