Who owns BXP (BXP)
Which tracked institutional funds hold BXP, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BXP company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
204 tracked funds added or opened BXP while 81 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
BXP’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes BXP more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in BXP divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 506 tracked filers holding BXP, 283 increased or opened the position and 258 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in BXP between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 14
- BAMCO INC /NY/$21M
- Zimmer Partners, LP$6M
- Jupiter Topco LLC$5M
- BURNEY CO/$3M
- CAPITAL FUND MANAGEMENT S.A.$3M
- Greenland Capital Management LP$3M
Full exits 47
- COHEN & STEERS, INC.$1.1B
- Amundi$18M
- Analyst IMS Investment Management Services Ltd.$18M
- CANADA LIFE ASSURANCE Co$15M
- H/2 CREDIT MANAGER LP$14M
- ALGEBRIS (UK) LTD$14M
Largest adds
- BlackRock, Inc.$585M
- VANGUARD PORTFOLIO MANAGEMENT LLC$194M
- VANGUARD CAPITAL MANAGEMENT LLC$149M
- First Eagle Investment Management, LLC$143M
- STATE STREET CORP$139M
- APG Asset Management US Inc.$122M
Largest trims
- NORGES BANK$254M
- JPMORGAN CHASE & CO$117M
- CITADEL ADVISORS LLC$83M
- JANE STREET GROUP, LLC$20M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$18M
- BARCLAYS PLC$16M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 17,981,430 | $1.2B | 12.3% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 12,963,896 | $860M | 8.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 10,052,458 | $667M | 6.9% | 2026-Q2 |
| STATE STREET CORP trimmed | 9,845,148 | $660M | 6.8% | 2026-Q2 |
| First Eagle Investment Management, LLC added | 9,467,247 | $628M | 6.5% | 2026-Q2 |
| APG Asset Management US Inc. added | 7,230,130 | $490M | 5.0% | 2026-Q2 |
| NORGES BANK trimmed | 6,481,326 | $430M | 4.4% | 2026-Q2 |
| Invesco Ltd. trimmed | 5,799,416 | $385M | 4.0% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 4,395,853 | $291M | 3.0% | 2026-Q2 |
| Daiwa Securities Group Inc. trimmed | 4,088,872 | $271M | 2.8% | 2026-Q2 |
| MORGAN STANLEY added | 2,985,033 | $198M | 2.0% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 2,812,104 | $186M | 1.9% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 2,672,074 | $177M | 1.8% | 2026-Q2 |
| NORTHERN TRUST CORP added | 2,561,870 | $170M | 1.7% | 2026-Q2 |
| EARNEST PARTNERS LLC trimmed | 2,530,668 | $168M | 1.7% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 2,321,469 | $154M | 1.6% | 2026-Q2 |
| SEI INVESTMENTS CO added | 2,038,927 | $135M | 1.4% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 1,934,641 | $128M | 1.3% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 1,842,273 | $132M | 1.4% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 1,815,512 | $120M | 1.2% | 2026-Q2 |
| UBS Group AG added | 1,506,460 | $100M | 1.0% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 1,504,369 | $101M | 1.0% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 1,454,245 | $96M | 1.0% | 2026-Q2 |
| Legal & General Group Plc added | 1,266,577 | $84M | 0.9% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 1,232,500 | $82M | 0.8% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 1,229,773 | $81M | 0.8% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 1,060,150 | $70M | 0.7% | 2026-Q2 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO added | 982,326 | $65M | 0.7% | 2026-Q2 |
| Bank of New York Mellon Corp added | 961,680 | $64M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 842,372 | $56M | 0.6% | 2026-Q2 |
| HSBC HOLDINGS PLC trimmed | 765,791 | $51M | 0.5% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 758,602 | $47M | 0.5% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 747,770 | $50M | 0.5% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 721,688 | $48M | 0.5% | 2026-Q2 |
| STRS OHIO added | 715,312 | $47M | 0.5% | 2026-Q2 |
| State of Tennessee, Department of Treasury trimmed | 695,332 | $46M | 0.5% | 2026-Q2 |
| Divco West Real Estate Services, LLC | 680,540 | $45M | 0.5% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 678,800 | $45M | 0.5% | 2026-Q2 |
| Woodline Partners LP trimmed | 637,373 | $42M | 0.4% | 2026-Q2 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 611,549 | $41M | 0.4% | 2026-Q2 |
| Nuveen, LLC trimmed | 555,449 | $37M | 0.4% | 2026-Q2 |
| BARCLAYS PLC trimmed | 472,697 | $31M | 0.3% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 471,127 | $31M | 0.3% | 2026-Q2 |
| LASALLE INVESTMENT MANAGEMENT SECURITIES LLC trimmed | 462,991 | $31M | 0.3% | 2026-Q2 |
| Heitman Real Estate Securities LLC added | 450,675 | $30M | 0.3% | 2026-Q2 |
| Hudson Bay Capital Management LP added | 435,892 | $29M | 0.3% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 433,514 | $29M | 0.3% | 2026-Q2 |
| Gotham Asset Management, LLC added | 423,939 | $28M | 0.3% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 420,851 | $28M | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 385,095 | $26M | 0.3% | 2026-Q2 |
| CAUSEWAY CAPITAL MANAGEMENT LLC trimmed | 378,480 | $25M | 0.3% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 369,355 | $24M | 0.3% | 2026-Q2 |
| FIRST MANHATTAN CO. LLC. added | 354,087 | $23M | 0.2% | 2026-Q2 |
| California Public Employees Retirement System added | 336,896 | $22M | 0.2% | 2026-Q2 |
| Fisher Asset Management, LLC trimmed | 321,252 | $21M | 0.2% | 2026-Q2 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 313,948 | $21M | 0.2% | 2026-Q2 |
| BAMCO INC /NY/ added | 312,545 | $21M | 0.2% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 308,575 | $20M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 302,400 | $20M | 0.2% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP added | 300,477 | $20M | 0.2% | 2026-Q2 |
| Woodbridge Co Ltd | 300,053 | $20M | 0.2% | 2026-Q2 |
| Pacific Heights Asset Management LLC added | 300,000 | $20M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 293,843 | $19M | 0.2% | 2026-Q2 |
| Quantinno Capital Management LP added | 284,860 | $19M | 0.2% | 2026-Q2 |
| STOREBRAND ASSET MANAGEMENT AS trimmed | 268,447 | $18M | 0.2% | 2026-Q2 |
| CITIGROUP INC trimmed | 262,615 | $17M | 0.2% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 258,253 | $17M | 0.2% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 245,917 | $13M | 0.1% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT CO LTD added | 244,320 | $16M | 0.2% | 2026-Q2 |
| DAVIS SELECTED ADVISERS trimmed | 232,050 | $15M | 0.2% | 2026-Q2 |
| CHILTON CAPITAL MANAGEMENT LLC trimmed | 231,659 | $15M | 0.2% | 2026-Q2 |
| Allianz Asset Management GmbH added | 229,940 | $15M | 0.2% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 227,373 | $15M | 0.2% | 2026-Q2 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO trimmed | 226,436 | $15M | 0.2% | 2026-Q2 |
| EXCHANGE TRADED CONCEPTS, LLC added | 211,213 | $14M | 0.1% | 2026-Q2 |
| Asset Management One Co., Ltd. trimmed | 210,225 | $14M | 0.1% | 2026-Q2 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. trimmed | 205,245 | $14M | 0.1% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 193,752 | $13M | 0.1% | 2026-Q2 |
| Cander Asset Management LP added | 191,722 | $13M | 0.1% | 2026-Q2 |
| MIZUHO MARKETS AMERICAS LLC added | 186,665 | $12M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 174,713 | $12M | 0.1% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 165,543 | $11M | 0.1% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 163,016 | $11M | 0.1% | 2026-Q2 |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC trimmed | 159,546 | $11M | 0.1% | 2026-Q2 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS added | 151,023 | $10M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 149,490 | $10M | 0.1% | 2026-Q2 |
| Vanguard Investments Australia, Ltd. trimmed | 144,007 | $10M | 0.1% | 2026-Q2 |
| Apollo Management Holdings, L.P. | 140,410 | $9M | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 130,184 | $9M | 0.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 123,138 | $8M | 0.1% | 2026-Q2 |
| State of New Jersey Common Pension Fund D | 122,912 | $8M | 0.1% | 2026-Q2 |
| WHITTIER TRUST CO trimmed | 122,464 | $9M | 0.1% | 2026-Q2 |
| NAN FUNG TRINITY (HK) LTD | 121,924 | $8M | 0.1% | 2026-Q2 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM trimmed | 121,351 | $8M | 0.1% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 120,761 | $8M | 0.1% | 2026-Q2 |
| MACQUARIE GROUP LTD added | 119,438 | $8M | 0.1% | 2026-Q2 |
| CI INVESTMENTS INC. added | 117,533 | $8M | 0.1% | 2026-Q2 |
| Retirement Systems of Alabama trimmed | 113,385 | $8M | 0.1% | 2026-Q2 |
| Birch Hill Investment Advisors LLC trimmed | 110,916 | $7M | 0.1% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 110,651 | $7M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.