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Piedmont Office Realty Trust, Inc. (PDM) institutional ownership

Market cap$911M SectorReal Estate
Funds holding · Q1 2026
223
reported PDM position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
99 buyers · 124 sellers

Piedmont Office Realty Trust, Inc. (PDM) price and institutional activity

Dates

Q1 2026

$0 bought by 99 investors
Two Sigma Investments, LPUBS AM +97 more
$0 sold by 124 investors
Hudson Bay Capital Management LPTwo Sigma Advisers, LP +122 more
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Bought Sold Totals per quarter; hover a bar for the names.

Piedmont Office Realty Trust, Inc. (PDM) institutional activity · 223

Investor Type Est. change Change Δ Own Date
Hudson Bay Capital Management LP · Exited
Change −3.2M Δ Own −100.0% Date Q1 2026
Hudson Bay Capital Management LP Exited· Q1 2026 −3.2M −100.0% Q1 2026
Two Sigma Investments, LP · Added
Change +1.0M Δ Own +186.2% Date Q1 2026
Two Sigma Investments, LP Added· Q1 2026 +1.0M +186.2% Q1 2026
UBS AM · Added
Change +976K Date Q1 2026
UBS AM Added· Q1 2026 +976K Q1 2026
Cohen & Steers, Inc. · Added
Change +729K Date Q1 2026
Cohen & Steers, Inc. Added· Q1 2026 +729K Q1 2026
Two Sigma Advisers, LP · Exited
Change −719K Δ Own −100.0% Date Q1 2026
Two Sigma Advisers, LP Exited· Q1 2026 −719K −100.0% Q1 2026
Wilsey Asset Management Inc · Added
Change +652K Date Q1 2026
Wilsey Asset Management Inc Added· Q1 2026 +652K Q1 2026
Prudential Financial Inc · Added
Change +578K Date Q1 2026
Prudential Financial Inc Added· Q1 2026 +578K Q1 2026
BlackRock · Added
Change +553K Date Q1 2026
BlackRock Added· Q1 2026 +553K Q1 2026
Punch & Associates Investment Management, Inc. · New
Change +550K Date Q1 2026
Punch & Associates Investment Management, Inc. New· Q1 2026 +550K Q1 2026
Lighthouse Investment Partners, LLC · Exited
Change −550K Δ Own −100.0% Date Q1 2026
Lighthouse Investment Partners, LLC Exited· Q1 2026 −550K −100.0% Q1 2026
Apollo Management Holdings, L.P. · Exited
Change −484K Δ Own −100.0% Date Q1 2026
Apollo Management Holdings, L.P. Exited· Q1 2026 −484K −100.0% Q1 2026
Bessemer Group Inc · Added
Change +474K Date Q1 2026
Bessemer Group Inc Added· Q1 2026 +474K Q1 2026
Ameriprise Financial Inc · Reduced
Change −469K Date Q1 2026
Ameriprise Financial Inc Reduced· Q1 2026 −469K Q1 2026
JPMorgan Chase & Co · Reduced
Change −376K Date Q1 2026
JPMorgan Chase & Co Reduced· Q1 2026 −376K Q1 2026
Private Management Group Inc · Added
Change +325K Date Q1 2026
Private Management Group Inc Added· Q1 2026 +325K Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 223

Famous investor activity in Piedmont Office Realty Trust, Inc. (PDM)

Piedmont Office Realty Trust, Inc. (PDM) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Lewis Stephen E. · Director 2 operations 0
Owned 0 Trade date May 12, 2026 Filed date May 13, 2026
Lewis Stephen E. Director 2 operations 0 0 May 12, 2026 May 13, 2026
Lewis Stephen E. · Director Grant (A) 13K
Owned 13K Trade date May 12, 2026 Filed date May 13, 2026
Lewis Stephen E. Director Grant (A) 13K 13K May 12, 2026 May 13, 2026
Lang Barbara B. · Director 2 operations 0
Owned 0 Trade date May 12, 2026 Filed date May 13, 2026
Lang Barbara B. Director 2 operations 0 0 May 12, 2026 May 13, 2026
Lang Barbara B. · Director Tax withholding or exercise payment (F) -$37K
Price $8.15 Qty -5K Owned 62K Trade date May 12, 2026 Filed date May 13, 2026
Lang Barbara B. Director Tax withholding or exercise payment (F) $8.15 -5K -$37K 62K May 12, 2026 May 13, 2026
Lang Barbara B. · Director Grant (A) 13K
Owned 13K Trade date May 12, 2026 Filed date May 13, 2026
Lang Barbara B. Director Grant (A) 13K 13K May 12, 2026 May 13, 2026
Hager Mary M. · Director 2 operations 0
Owned 0 Trade date May 12, 2026 Filed date May 13, 2026
Hager Mary M. Director 2 operations 0 0 May 12, 2026 May 13, 2026
Hager Mary M. · Director Grant (A) 13K
Owned 13K Trade date May 12, 2026 Filed date May 13, 2026
Hager Mary M. Director Grant (A) 13K 13K May 12, 2026 May 13, 2026
Cohen Glenn Gary · Director 2 operations 0
Owned 0 Trade date May 12, 2026 Filed date May 13, 2026
Cohen Glenn Gary Director 2 operations 0 0 May 12, 2026 May 13, 2026
Cohen Glenn Gary · Director Grant (A) 13K
Owned 13K Trade date May 12, 2026 Filed date May 13, 2026
Cohen Glenn Gary Director Grant (A) 13K 13K May 12, 2026 May 13, 2026
Donnley Deneen L. · Director 2 operations 0
Owned 0 Trade date May 12, 2026 Filed date May 13, 2026
Donnley Deneen L. Director 2 operations 0 0 May 12, 2026 May 13, 2026
Donnley Deneen L. · Director Grant (A) 13K
Owned 13K Trade date May 12, 2026 Filed date May 13, 2026
Donnley Deneen L. Director Grant (A) 13K 13K May 12, 2026 May 13, 2026
Donnelly Jeffrey · Director 2 operations 0
Owned 0 Trade date May 12, 2026 Filed date May 13, 2026
Donnelly Jeffrey Director 2 operations 0 0 May 12, 2026 May 13, 2026
Donnelly Jeffrey · Director Tax withholding or exercise payment (F) -$27K
Price $8.15 Qty -3K Owned 14K Trade date May 12, 2026 Filed date May 13, 2026
Donnelly Jeffrey Director Tax withholding or exercise payment (F) $8.15 -3K -$27K 14K May 12, 2026 May 13, 2026
Donnelly Jeffrey · Director Grant (A) 13K
Owned 13K Trade date May 12, 2026 Filed date May 13, 2026
Donnelly Jeffrey Director Grant (A) 13K 13K May 12, 2026 May 13, 2026
Taysom Dale H. · Director 2 operations 0
Owned 0 Trade date May 12, 2026 Filed date May 13, 2026
Taysom Dale H. Director 2 operations 0 0 May 12, 2026 May 13, 2026
15 of 71
15 of 71 Sign in to continue to older insider transactions.

Piedmont Office Realty Trust, Inc. (PDM) activist and large shareholders

What are Schedules 13D and 13G?

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Vanguard Group Inc 18.8M
% of shares outstanding 15.2% Filing date Feb 13, 2024
Vanguard Group Inc 18.8M 15.2% Feb 13, 2024
BlackRock Inc. 17.0M
% of shares outstanding 13.8% Filing date Jan 23, 2024
BlackRock Inc. 17.0M 13.8% Jan 23, 2024
Vanguard Capital Management 6.6M
% of shares outstanding 5.3% Filing date Apr 30, 2026
Vanguard Capital Management 6.6M 5.3% Apr 30, 2026
State Street Corp 5.5M
% of shares outstanding 4.4% Filing date Oct 18, 2024
State Street Corp 5.5M 4.4% Oct 18, 2024
4 of 4

Piedmont Office Realty Trust, Inc. (PDM) ownership FAQ

Who owns PDM?

223 reporting institutions disclosed PDM position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.