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-Q1 13F filings. 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
The tracked-fund tape on BXP is one-sided between 2025-Q4 and 2026-Q1: 61 added or opened and 256 trimmed or exited — on balance reducing.
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, VANGUARD GROUP 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 2025-Q4 and 2026-Q1, across 534 tracked filers holding BXP, 230 increased or opened the position and 390 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 2025-Q4 and 2026-Q1 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 32
- VANGUARD PORTFOLIO MANAGEMENT LLC$666M
- VANGUARD CAPITAL MANAGEMENT LLC$517M
- VANGUARD FIDUCIARY TRUST CO$44M
- Woodline Partners LP$35M
- JANE STREET GROUP, LLC$22M
- Vanguard Global Advisers, LLC$16M
Full exits 45
- VANGUARD GROUP INC$1.6B
- Senvest Management, LLC$22M
- Schonfeld Strategic Advisors LLC$21M
- BAMCO INC /NY/$14M
- 1832 Asset Management L.P.$13M
- ZACKS INVESTMENT MANAGEMENT$10M
Largest adds
- First Eagle Investment Management, LLC$255M
- CITADEL ADVISORS LLC$93M
- PRUDENTIAL FINANCIAL INC$56M
- COHEN & STEERS, INC.$44M
- Invesco Ltd.$39M
- Daiwa Securities Group Inc.$17M
Largest trims
- BlackRock, Inc.$629M
- STATE STREET CORP$248M
- Boston Partners$232M
- Allspring Global Investments Holdings, LLC$140M
- APG Asset Management US Inc.$131M
- CENTERSQUARE INVESTMENT MANAGEMENT LLC$116M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| COHEN & STEERS, INC. added | 20,849,327 | $1.1B | 10.2% | 2026-Q1 |
| NORGES BANK trimmed | 10,180,607 | $684M | 6.5% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 12,824,544 | $666M | 6.3% | 2026-Q1 |
| BlackRock, Inc. trimmed | 11,696,561 | $607M | 5.7% | 2026-Q1 |
| STATE STREET CORP trimmed | 9,890,068 | $520M | 4.9% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 9,970,641 | $517M | 4.9% | 2026-Q1 |
| First Eagle Investment Management, LLC added | 9,344,461 | $485M | 4.6% | 2026-Q1 |
| APG Asset Management US Inc. trimmed | 7,212,581 | $368M | 3.5% | 2026-Q1 |
| Invesco Ltd. added | 6,077,370 | $315M | 3.0% | 2026-Q1 |
| Daiwa Securities Group Inc. added | 4,319,777 | $224M | 2.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 4,312,973 | $223M | 2.1% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 4,214,020 | $218M | 2.1% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 4,066,825 | $211M | 2.0% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 2,693,376 | $140M | 1.3% | 2026-Q1 |
| MORGAN STANLEY trimmed | 2,586,323 | $134M | 1.3% | 2026-Q1 |
| EARNEST PARTNERS LLC trimmed | 2,552,833 | $132M | 1.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 2,531,901 | $131M | 1.2% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 2,374,823 | $123M | 1.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 2,344,421 | $122M | 1.2% | 2026-Q1 |
| SEI INVESTMENTS CO added | 2,000,667 | $104M | 1.0% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 1,966,552 | $102M | 1.0% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 1,331,499 | $69M | 0.7% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 1,306,903 | $68M | 0.6% | 2026-Q1 |
| Legal & General Group Plc trimmed | 1,258,536 | $65M | 0.6% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 992,590 | $55M | 0.5% | 2026-Q1 |
| BARCLAYS PLC trimmed | 918,085 | $48M | 0.5% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 906,266 | $47M | 0.4% | 2026-Q1 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO added | 888,831 | $46M | 0.4% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 865,255 | $45M | 0.4% | 2026-Q1 |
| UBS Group AG added | 841,866 | $44M | 0.4% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 840,409 | $44M | 0.4% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 818,806 | $42M | 0.4% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 810,087 | $42M | 0.4% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 750,327 | $39M | 0.4% | 2026-Q1 |
| State of Tennessee, Department of Treasury added | 696,202 | $36M | 0.3% | 2026-Q1 |
| Woodline Partners LP new | 682,836 | $35M | 0.3% | 2026-Q1 |
| Divco West Real Estate Services, LLC | 680,540 | $35M | 0.3% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 719,269 | $35M | 0.3% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 630,535 | $33M | 0.3% | 2026-Q1 |
| STRS OHIO trimmed | 582,560 | $30M | 0.3% | 2026-Q1 |
| Nuveen, LLC trimmed | 565,092 | $29M | 0.3% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 515,069 | $27M | 0.3% | 2026-Q1 |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC trimmed | 490,192 | $25M | 0.2% | 2026-Q1 |
| LASALLE INVESTMENT MANAGEMENT SECURITIES LLC added | 487,084 | $25M | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 424,378 | $22M | 0.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 400,826 | $21M | 0.2% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 395,673 | $21M | 0.2% | 2026-Q1 |
| CITIGROUP INC trimmed | 388,554 | $20M | 0.2% | 2026-Q1 |
| CAUSEWAY CAPITAL MANAGEMENT LLC added | 380,761 | $20M | 0.2% | 2026-Q1 |
| FIRST MANHATTAN CO. LLC. added | 347,850 | $18M | 0.2% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 346,430 | $18M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 343,611 | $18M | 0.2% | 2026-Q1 |
| Amundi trimmed | 341,138 | $18M | 0.2% | 2026-Q1 |
| Analyst IMS Investment Management Services Ltd. trimmed | 339,521 | $18M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 326,082 | $17M | 0.2% | 2026-Q1 |
| Fisher Asset Management, LLC trimmed | 326,003 | $17M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System added | 320,282 | $17M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 312,452 | $16M | 0.2% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 308,961 | $16M | 0.2% | 2026-Q1 |
| Woodbridge Co Ltd | 300,053 | $16M | 0.1% | 2026-Q1 |
| Swiss National Bank trimmed | 297,900 | $15M | 0.1% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. trimmed | 297,271 | $15M | 0.1% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 292,529 | $15M | 0.1% | 2026-Q1 |
| STOREBRAND ASSET MANAGEMENT AS trimmed | 286,899 | $15M | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 218,121 | $15M | 0.1% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 272,553 | $14M | 0.1% | 2026-Q1 |
| H/2 CREDIT MANAGER LP | 268,110 | $14M | 0.1% | 2026-Q1 |
| ALGEBRIS (UK) LTD added | 266,730 | $14M | 0.1% | 2026-Q1 |
| NATIXIS added | 259,259 | $13M | 0.1% | 2026-Q1 |
| CHILTON CAPITAL MANAGEMENT LLC added | 247,556 | $13M | 0.1% | 2026-Q1 |
| Pacific Heights Asset Management LLC | 250,000 | $13M | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 241,758 | $13M | 0.1% | 2026-Q1 |
| DAVIS SELECTED ADVISERS added | 237,190 | $12M | 0.1% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT CO LTD trimmed | 235,059 | $12M | 0.1% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 234,329 | $12M | 0.1% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO trimmed | 228,741 | $12M | 0.1% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. trimmed | 222,675 | $12M | 0.1% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 219,943 | $11M | 0.1% | 2026-Q1 |
| Asset Management One Co., Ltd. trimmed | 216,186 | $11M | 0.1% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH trimmed | 214,582 | $11M | 0.1% | 2026-Q1 |
| CIBC Bancorp USA Inc. added | 213,917 | $11M | 0.1% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 180,174 | $9M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 177,521 | $9M | 0.1% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 177,483 | $9M | 0.1% | 2026-Q1 |
| Jain Global LLC added | 176,210 | $9M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 23,471,146 | $1.6B | 15.0% | 2025-Q4 stale |
| GOLDENTREE ASSET MANAGEMENT LP added | 1,087,212 | $73M | 0.7% | 2025-Q1 stale |
| Clark Capital Management Group, Inc. added | 679,346 | $46M | 0.4% | 2025-Q2 stale |
| BROOKFIELD Corp /ON/ added | 330,690 | $22M | 0.2% | 2025-Q1 stale |
| Senvest Management, LLC trimmed | 327,258 | $22M | 0.2% | 2025-Q4 stale |
| Schonfeld Strategic Advisors LLC added | 315,601 | $21M | 0.2% | 2025-Q4 stale |
| Linden Advisors LP added | 251,871 | $19M | 0.2% | 2025-Q3 stale |
| GRS Advisors, LLC added | 277,849 | $19M | 0.2% | 2025-Q1 stale |
| BAMCO INC /NY/ trimmed | 202,984 | $14M | 0.1% | 2025-Q4 stale |
| 1832 Asset Management L.P. trimmed | 189,304 | $13M | 0.1% | 2025-Q4 stale |
| AXA Investment Managers S.A. new | 166,258 | $12M | 0.1% | 2025-Q3 stale |
| AXA S.A. trimmed | 161,292 | $11M | 0.1% | 2025-Q2 stale |
| ZACKS INVESTMENT MANAGEMENT added | 153,501 | $10M | 0.1% | 2025-Q4 stale |
| Swedbank AB added | 146,740 | $10M | 0.1% | 2025-Q4 stale |
| AVIVA PLC added | 144,738 | $10M | 0.1% | 2025-Q4 stale |
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.