OFFICE PROPERTIES INCOME TRUST - Common Shares of Beneficial Interest (OPI)

Q: What does CUSIP 67623C307 represent in this 13F holders report?

CUSIP 67623C307 is the security identifier for OPI - OFFICE PROPERTIES INCOME TRUST - Common Shares of Beneficial Interest used to aggregate holder disclosures.

Q: How many institutions held OPI - OFFICE PROPERTIES INCOME TRUST - Common Shares of Beneficial Interest in Q3 2026?

2 institutional investors reported OPI - OFFICE PROPERTIES INCOME TRUST - Common Shares of Beneficial Interest for Q3 2026. Use the holders table for investor-level position and value details.

CUSIP: 67623C307

Q3 2026 13F Holders as of 30 Sep 2026

Security type / class: Equity / Common Shares of Beneficial Interest
Total 13F shares: 541,774
Total 13F value: $8,630,460
Share change: +541,721
SEC-reported price per share: $15.93
Number of holders: 2
Value change: +$8,629,616
Number of buys: 1
Shares outstanding: 22,011,067

Security key

67623C307

Report period

Q3 2026

Institutions

Top holders

OPI full security history Ownership snapshot Full 13F holder table Previous quarter: Q2 2026 OFFICE PROPERTIES INCOME TRUST SEC filings OFFICE PROPERTIES INCOME TRUST company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 67623C307

Previous quarter: Q2 2026

Recent filing periods:

Q3 2026 Q2 2026

Ownership snapshot

Top reported holders of OPI - OFFICE PROPERTIES INCOME TRUST - Common Shares of Beneficial Interest (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Helix Partners Management LP

Disclosed value leader

Helix Partners Management LP

Comparable rows

15/15

Latest evidence

17 Aug 2026

13F 13D/G 3/4/5 Lead comparable stake: 25% 13D/G row: Helix Partners Management LP Showing 1-6 of 15 holder rows.

Quick read

Helix Partners Management LP leads the comparable SEC ownership view at 25%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Helix Partners Management LP's linked filing trail.

Comparable ownership Top 5

Helix Partners Management LP 25%

REDWOOD CAPITAL MANAGEMENT, LLC 18%

BARCLAYS PLC 8.4%

WHITEBOX ADVISORS LLC 8.2%

LIBERTY MUTUAL HOLDING Co INC. 6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Helix Partners Management LP	13F 13D/G 3/4/5 Company · 10%+ Owner 13F 13D/G 3/4/5	25% from 13D/G	$94,379,155 5,551,715 shares	—	30 Jun 2026
REDWOOD CAPITAL MANAGEMENT, LLC	3/4/5 13D/G 13F 10%+ Owner · Company 3/4/5 13D/G 13F	18% from 13D/G	$75,406,216 3,961,992 shares	-$7,066,520	17 Aug 2026
BARCLAYS PLC	13D/G 13F Company 13D/G 13F	8.4%	$31,635,918 1,852,220 shares	$0	30 Jun 2026
WHITEBOX ADVISORS LLC	13F 13D/G Company 13F 13D/G	8.2% from 13D/G	$29,726,285 1,748,605 shares	—	30 Jun 2026
LIBERTY MUTUAL HOLDING Co INC.	13D/G Liberty Mutual Holding Company Inc. 13D/G	6%	— 1,311,341 shares	$0	30 Jun 2026
D. E. SHAW & CO, L.P.	13D/G 13D/G	3.5%	$830,925 2,596,642 shares	-$438,073	30 Jun 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

541,774

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2026 vs Q2 2026 Across Filers

Q2 2026 holders

Q3 2026 holders

Holder diff

-31

Investor	Q2 2026 Shares	Q3 2026 Shares	Share Diff	Share Chg %	Q2 2026 value	Q3 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend