Who owns OFFICE PROPERTIES INCOME TRUST?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of OPI from SEC Form 13F filings across 35 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 35 institutions disclosed 18.9M shares of OFFICE PROPERTIES INCOME TRUST worth $320.8M — about 26.5% of shares outstanding; the largest disclosed holder is Helix Partners Management LP. Source: SEC Form 13F filings, parsed by EvidInvest.
35
13F holders
$320.8M
value, 2026 filers
26.5%
of shares outstanding (18.9M sh)
35
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of OPI's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Helix Partners Management LPNEW | 5.6M | $94.4M | 12.7% | 7.8% | new |
| 2 | REDWOOD CAPITAL MANAGEMENT, LLCNEW | 4.3M | $73.6M | 7.9% | 6.1% | new |
| 3 | WHITEBOX ADVISORS LLCNEW | 1.7M | $29.7M | 0.4% | 2.5% | new |
| 4 | Liberty Mutual Group Asset Management Inc.NEW | 1.3M | $22.3M | 1.9% | 1.8% | new |
| 5 | VALUEWORKS LLCNEW | 1.2M | $19.8M | 4.1% | 1.6% | new |
| 6 | ExodusPoint Capital Management, LPNEW | 1.1M | $18.3M | 0.1% | 1.5% | new |
| 7 | Cygnus Capital Advisors, LLCNEW | 740,803 | $12.6M | 8.6% | 1% | new |
| 8 | Apollo Management Holdings, L.P.NEW | 516,804 | $8.8M | 0.1% | 0.7% | new |
| 9 | JANE STREET GROUP, LLCNEW | 458,560 | $7.8M | 0.0% | 0.6% | new |
| 10 | BARCLAYS PLCNEW | 416,921 | $7.1M | 0.0% | 0.6% | new |
| 11 | LITTLEJOHN & CO LLCNEW | 326,981 | $5.6M | 7.1% | 0.5% | new |
| 12 | AVIVA PLCNEW | 235,269 | $4.0M | 0.0% | 0.3% | new |
| 13 | Nuveen, LLCNEW | 210,482 | $3.6M | 0.0% | 0.3% | new |
| 14 | MACKENZIE FINANCIAL CORPNEW | 193,653 | $3.3M | 0.0% | 0.3% | new |
| 15 | Brevan Howard Capital Management LPNEW | 124,393 | $2.1M | 0.0% | 0.2% | new |
| 16 | MILLENNIUM MANAGEMENT LLCNEW | 119,008 | $2.0M | 0.0% | 0.2% | new |
| 17 | Invesco Ltd.NEW | 113,454 | $1.9M | 0.0% | 0.2% | new |
| 18 | AEGON USA Investment Management, LLCNEW | 57,113 | $970,921 | 0.7% | 0.1% | new |
| 19 | Marnell Management LLCNEW | 50,892 | $865,164 | 0.3% | 0.1% | new |
| 20 | INFRASTRUCTURE CAPITAL ADVISORS, LLCNEW | 45,864 | $779,688 | 0.0% | 0.1% | new |
| 21 | LPL Financial LLCNEW | 16,884 | $287,028 | 0.0% | 0% | new |
| 22 | CITADEL ADVISORS LLCNEW | 12,768 | $217,056 | 0.0% | 0% | new |
| 23 | BANK OF MONTREAL /CAN/NEW | 12,235 | $207,995 | 0.0% | 0% | new |
| 24 | OAKTREE CAPITAL MANAGEMENT LPNEW | 10,851 | $184,467 | 0.0% | 0% | new |
| 25 | MSD Partners, L.P.NEW | 10,707 | $182,019 | 0.2% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.