As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 7/29/22  Pell Nicholas L.                  3          Officer²    1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/29/22  Levine David Eric                 3          Director²   1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/29/22  Ingle Ryan                        3          Director²   1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/29/22  Ostrower Matthew Louis            3          Officer²    1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/29/22  Beaudin Timothy J                 3          Director²   1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/29/22  Brown Justin A                    3          Director²   1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/29/22  Petherbridge Luke J               3          Officer²    1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/29/22  Freedman Ernest Michael           3          Director²   1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/29/22  Wallack Samantha                  3          Director²   1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/29/22  Drasites Andrea                   3          Director²   1:3K   PS Business Parks, Inc./MD        Donnelley Fin’l S… 06/FA 
 7/22/22  PS Business Parks, Inc./MD        8-K:1,2,3,4 7/20/22   22:4.1M                                   Donnelley … Solutions/FA 
 7/20/22  Wilson Stephen W                  4          Dir.,Off.²  1:13K  PS Business Parks, Inc./MD        Broadridge Fin’l… Inc/FA 
 7/20/22  Schultz Peter                     4          Director²   1:23K  PS Business Parks, Inc./MD        Broadridge Fin’l… Inc/FA 
 7/20/22  Russell Joseph D Jr.              4          Director²   1:16K  PS Business Parks, Inc./MD        Broadridge Fin’l… Inc/FA 
 7/20/22  Rollo Robert S                    4          Director²   1:24K  PS Business Parks, Inc./MD        Broadridge Fin’l… Inc/FA 
 7/20/22  Pruitt Gary E                     4          Director²   1:23K  PS Business Parks, Inc./MD        Broadridge Fin’l… Inc/FA 
 7/20/22  Pipes Kristy                      4          Director²   1:13K  PS Business Parks, Inc./MD        Broadridge Fin’l… Inc/FA 
 7/20/22  Oh Irene H                        4          Director²   1:9K   PS Business Parks, Inc./MD        Broadridge Fin’l… Inc/FA 
 7/20/22  Mitchell M Christian              4          Director²   1:9K   PS Business Parks, Inc./MD        Broadridge Fin’l… Inc/FA 
 7/20/22  Khan Adeel                        4          Officer²    1:6K   PS Business Parks, Inc./MD        Broadridge Fin’l… Inc/FA 

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¹	Filing/Form Types:  -Q
	3	Initial Statement of Beneficial Ownership of Securities by an Insider — Form 3 { The Filer is an Insider² of the Issuer }.
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
	8-K	Current Report — Form 8-K { Item 1: Business & Operations;  2: Financial Info;  3: Securities & Trading;  4: Accountants & Accounting;  5: Governance & Management;  6: Asset-Backed Securities;  7: Disclosures;  8: Events;  9: Financials }.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.