There is a long list of 234 institutional holders of PD within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of PD by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-PD table below, the initial column indicates the name of each top institutional holder of PD, with a link to that fund's top holdings. The next columns indicate the amount of PD stock held by each of the institutional holders of PD, followed by the PD position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Vanguard Group Inc.	9,598,336	$222,201	12/31/2023
PD	9,598,336	$222,201	12/31/2023
ARK Investment Management LLC	9,424,093	$213,738	03/31/2024
PD	9,424,093	$213,738	03/31/2024
BlackRock Inc.	8,228,715	$190,495	12/31/2023
PD	8,228,715	$190,495	12/31/2023
RGM Capital LLC	4,394,522	$101,733	12/31/2023
PD	4,394,522	$101,733	12/31/2023
Nikko Asset Management Americas Inc.	4,365,408	$100,972	12/31/2023
PD	4,365,408	$100,972	12/31/2023
Sumitomo Mitsui Trust Holdings Inc.	4,193,758	$95,114	03/31/2024
PD	4,193,758	$95,114	03/31/2024
Clearbridge Investments LLC	4,100,271	$94,921	12/31/2023
PD	4,100,271	$94,921	12/31/2023
FIL Ltd	3,604,168	$83,436	12/31/2023
PD	3,604,168	$83,436	12/31/2023
Janus Henderson Group PLC	3,386,029	$78,386	12/31/2023
PD	3,386,029	$78,386	12/31/2023
Goldman Sachs Group Inc.	2,285,588	$52,911	12/31/2023
PD	2,285,588	$52,911	12/31/2023
State Street Corp	2,161,364	$50,036	12/31/2023
PD	2,161,364	$50,036	12/31/2023
Massachusetts Financial Services Co. MA	2,160,281	$50,011	12/31/2023
PD	2,160,281	$50,011	12/31/2023
Morgan Stanley	1,966,201	$45,518	12/31/2023
PD	1,966,201	$45,518	12/31/2023
Geode Capital Management LLC	1,925,878	$44,590	12/31/2023
PD	1,925,878	$44,590	12/31/2023
Renaissance Technologies LLC	1,678,338	$38,854	12/31/2023
PD	1,678,338	$38,854	12/31/2023
American Century Companies Inc.	1,378,651	$31,916	12/31/2023
PD	1,378,651	$31,916	12/31/2023
ArrowMark Colorado Holdings LLC	1,059,020	$24,516	12/31/2023
PD	1,059,020	$24,516	12/31/2023
Northern Trust Corp	906,571	$20,987	12/31/2023
PD	906,571	$20,987	12/31/2023
Charles Schwab Investment Management Inc.	832,948	$19,283	12/31/2023
PD	832,948	$19,283	12/31/2023
Allspring Global Investments Holdings LLC	830,119	$18,827	03/31/2024
PD	830,119	$18,827	03/31/2024
Barclays PLC	799,407	$18,505	12/31/2023
PD	799,407	$18,505	12/31/2023
Jane Street Group LLC		$18,316	12/31/2023
PD	437,273	$10,123	12/31/2023
Call	353,900	$8,193	12/31/2023
Citigroup Inc.		$18,220	12/31/2023
PD	783,094	$18,129	12/31/2023
NOTE 1	95,000	$91	12/31/2023
TENOR CAPITAL MANAGEMENT Co. L.P.		$16,661	12/31/2023
NOTE 1	17,178,000	$16,661	12/31/2023
Bank of New York Mellon Corp	693,232	$16,048	12/31/2023
PD	693,232	$16,048	12/31/2023
Norges Bank	687,347	$15,912	12/31/2023
PD	687,347	$15,912	12/31/2023
Optimus Prime Fund Management Co. Ltd.	655,000	$15,163	12/31/2023
PD	655,000	$15,163	12/31/2023
Deutsche Bank AG		$13,980	12/31/2023
PD	582,659	$13,489	12/31/2023
Call	21,200	$491	12/31/2023
Bares Capital Management Inc.	584,970	$13,542	12/31/2023
PD	584,970	$13,542	12/31/2023
Thrivent Financial for Lutherans	551,261	$12,762	12/31/2023
PD	551,261	$12,762	12/31/2023
Bank of America Corp DE	536,505	$12,420	12/31/2023
PD	536,505	$12,420	12/31/2023
Credit Suisse AG	502,328	$11,629	12/31/2023
PD	502,328	$11,629	12/31/2023
Grandeur Peak Global Advisors LLC	487,262	$11,280	12/31/2023
PD	487,262	$11,280	12/31/2023
Bank of Montreal Can	469,798	$11,106	12/31/2023
PD	469,798	$11,106	12/31/2023
Millennium Management LLC	409,786	$9,487	12/31/2023
PD	409,786	$9,487	12/31/2023
Natixis	396,500	$9,179	12/31/2023
PD	396,500	$9,179	12/31/2023
Susquehanna International Group LLP		$8,603	12/31/2023
PD	211,936	$4,906	12/31/2023
Call	208,600	$4,829	12/31/2023
Put	48,900	$1,132	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	364,975	$8,449	12/31/2023
PD	364,975	$8,449	12/31/2023
Peregrine Capital Management LLC	353,655	$8,187	12/31/2023
PD	353,655	$8,187	12/31/2023
FMR LLC		$7,245	12/31/2023
PD	182,609	$4,227	12/31/2023
NOTE 1	3,150,000	$3,018	12/31/2023
Qube Research & Technologies Ltd	305,227	$7,066	12/31/2023
PD	305,227	$7,066	12/31/2023
DeepCurrents Investment Group LLC		$7,063	12/31/2023
NOTE 1	7,303,000	$7,063	12/31/2023
Kornitzer Capital Management Inc. KS	296,510	$6,864	12/31/2023
PD	296,510	$6,864	12/31/2023
Stanley Laman Group Ltd.	301,041	$6,828	03/31/2024
PD	301,041	$6,828	03/31/2024
Vestmark Advisory Solutions Inc.	292,767	$6,778	12/31/2023
PD	292,767	$6,778	12/31/2023
JPMorgan Chase & Co.	276,779	$6,407	12/31/2023
PD	276,779	$6,407	12/31/2023
Great West Life Assurance Co. Can	252,167	$5,827	12/31/2023
PD	252,167	$5,827	12/31/2023
Citadel Advisors LLC		$5,770	12/31/2023
PD	204,844	$4,742	12/31/2023
Call	156,600	$3,625	12/31/2023
Put	112,200	$2,597	12/31/2023
Victory Capital Management Inc.	241,571	$5,592	12/31/2023
PD	241,571	$5,592	12/31/2023
Nuveen Asset Management LLC	235,232	$5,446	12/31/2023
PD	235,232	$5,446	12/31/2023