Boston Properties, Inc.
MX ˙ BMV ˙ US1011211018
SecurityMX:BXP / Boston Properties, Inc.
InstitutionEarnest Partners Llc
Latest Disclosed Ownership2,552,833 shares
Latest Disclosed Value $ 132,492,033
Earnest Partners Llc reports 3.14% decrease in ownership of BXP / Boston Properties, Inc.

On May 15, 2026 - Earnest Partners Llc filed a 13F-HR form disclosing ownership of 2,552,833 shares of Boston Properties, Inc. (MX:BXP) valued at $132,492,033 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,635,725 shares of Boston Properties, Inc.. This represents a change in shares of -3.14% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F BXP COM 101121101 2,552,833 -82,892 -3.14 132,492 -25.51 0.5463
2026-02-12 2025-12-31 13F BXP COM 101121101 2,635,725 -30,136 -1.13 177,859 -10.25 0.7622
2025-11-14 2025-09-30 13F BXP COM 101121101 2,665,861 4,284 0.16 198,180 10.36 0.8597
2025-08-15 2025-06-30 13F BXP COM 101121101 2,661,577 13,721 0.52 179,577 0.94 0.8095
2025-05-14 2025-03-31 13F BXP COM 101121101 2,647,856 -45,776 -1.70 177,909 -11.18 0.8519
2025-02-14 2024-12-31 13F BXP COM 101121101 2,693,632 41,996 1.58 200,298 -6.12 0.8952
2024-11-14 2024-09-30 13F BXP COM 101121101 2,651,636 14,401 0.55 213,351 31.42 0.9290
2024-08-14 2024-06-30 13F BOSTON PROPERTIES COM 101121101 2,637,235 542,610 25.90 162,348 18.68 0.7590
2024-05-15 2024-03-31 13F BOSTON PROPERTIES COM 101121101 2,094,625 480,961 29.81 136,800 20.82 0.6263
2024-02-14 2023-12-31 13F BOSTON PROPERTIES COM 101121101 1,613,664 244,481 17.86 113,231 39.04 0.5654
2023-11-14 2023-09-30 13F BOSTON PROPERTIES COM 101121101 1,369,183 417,944 43.94 81,439 48.66 0.4697
2023-08-07 2023-06-30 13F BOSTON PROPERTIE REIT 101121101 951,239 24,591 2.65 54,782 9.23 0.3062
2023-05-15 2023-03-31 13F BOSTON PROPERTIE REIT 101121101 926,648 35,061 3.93 50,150 -16.77 0.2900
2023-02-14 2022-12-31 13F BOSTON PROPERTIE REIT 101121101 891,587 23,940 2.76 60,253 -7.37 0.3693
2022-11-14 2022-09-30 13F BOSTON PROPERTIE REIT 101121101 867,647 95,547 12.37 65,047 -5.32 0.4369
2022-08-12 2022-06-30 13F BOSTON PROPERTIE REIT 101121101 772,100 133,878 20.98 68,701 -16.43 0.4576
2022-05-16 2022-03-31 13F BOSTON PROPERTIE REIT 101121101 638,222 4,410 0.70 82,203 12.60 0.4869
2022-02-07 2021-12-31 13F BOSTON PROPERTIE REIT 101121101 633,812 13,123 2.11 73,002 8.55 0.4211
2021-11-15 2021-09-30 13F BOSTON PROPERTIE REIT 101121101 620,689 113 0.02 67,252 -5.43 0.4110
2021-08-16 2021-06-30 13F BOSTON PROPERTIE REIT 101121101 620,576 21,878 3.65 71,112 17.30 0.4178
2021-05-17 2021-03-31 13F BOSTON PROPERTIE REIT 101121101 598,698 121,718 25.52 60,624 34.45 0.3621
2021-02-16 2020-12-31 13F BOSTON PROPERTIE REIT 101121101 476,980 102,374 27.33 45,089 49.89 0.3115
2020-11-16 2020-09-30 13F BOSTON PROPERTIE REIT 101121101 374,606 53,892 16.80 30,081 3.78 0.2595
2020-08-13 2020-06-30 13F BOSTON PROPERTIE REIT 101121101 320,714 82,611 34.70 28,986 31.99 0.2739
2020-05-14 2020-03-31 13F BOSTON PROPERTIE REIT 101121101 238,103 -10,578 -4.25 21,960 -35.94 0.2474
2020-02-07 2019-12-31 13F BOSTON PROPERTIE REIT 101121101 248,681 49,471 24.83 34,283 32.73 0.2694
2019-11-14 2019-09-30 13F BOSTON PROPERTIE REIT 101121101 199,210 1,957 0.99 25,830 1.51 0.2334
2019-08-13 2019-06-30 13F BOSTON PROPERTIE REIT 101121101 197,253 8,907 4.73 25,446 0.91 0.2299
2019-05-15 2019-03-31 13F BOSTON PROPERTIE REIT 101121101 188,346 9,107 5.08 25,216 25.00 0.2409
2019-02-14 2018-12-31 13F BOSTON PROPERTIE REIT 101121101 179,239 -625 -0.35 20,173 -8.88 0.2197
2018-11-14 2018-09-30 13F BOSTON PROPERTIE REIT 101121101 179,864 -3,308 -1.81 22,139 -3.63 0.1983
2018-08-13 2018-06-30 13F BOSTON PROPERTIE REIT 101121101 183,172 -4,175 -2.23 22,973 -0.49 0.2149
2018-05-15 2018-03-31 13F BOSTON PROPERTIE REIT 101121101 187,347 8,269 4.62 23,085 -0.86 0.2183
2018-02-14 2017-12-31 13F BOSTON PROPERTIE REIT 101121101 179,078 -8,360 -4.46 23,286 1.10 0.2230
2017-11-14 2017-09-30 13F BOSTON PROPERTIE REIT 101121101 187,438 -7,994 -4.09 23,032 -4.20 0.2294
2017-08-14 2017-06-30 13F BOSTON PROPERTIE REIT 101121101 195,432 -6,517 -3.23 24,042 -10.09 0.2525
2017-05-15 2017-03-31 13F BOSTON PROPERTIE REIT 101121101 201,949 -16,858 -7.70 26,740 -2.84 0.2852
2017-02-14 2016-12-31 13F BOSTON PROPERTIE REIT 101121101 218,807 -41,604 -15.98 27,522 -22.45 0.3005
2016-11-14 2016-09-30 13F BOSTON PROPERTIE REIT 101121101 260,411 -3,728 -1.41 35,491 1.87 0.3723
2016-08-15 2016-06-30 13F BOSTON PROPERTIE REIT 101121101 264,139 -3,408 -1.27 34,840 2.47 0.3780
2016-05-16 2016-03-31 13F BOSTON PROPERTIE REIT 101121101 267,547 -2,685 -0.99 34,000 -1.35 0.3563
2016-02-16 2015-12-31 13F BOSTON PROPERTIE REIT 101121101 270,232 -63,189 -18.95 34,465 -12.70 0.3515
2015-11-16 2015-09-30 13F BOSTON PROPERTIE REIT 101121101 333,421 -23,535 -6.59 39,477 -8.63 0.3878
2015-08-14 2015-06-30 13F BOSTON PROPERTIE REIT 101121101 356,956 -4,697 -1.30 43,206 -14.96 0.3774
2015-05-15 2015-03-31 13F BOSTON PROPERTIE REIT 101121101 361,653 -15,123 -4.01 50,805 4.78 0.4372
2015-02-17 2014-12-31 13F BOSTON PROPERTIE REIT 101121101 376,776 -14,128 -3.61 48,487 7.15 0.3979
2014-11-14 2014-09-30 13F Beximco Pharmaceuticals REIT 101121101 390,904 -10,857 -2.70 45,251 -4.69 0.3783
2014-08-14 2014-06-30 13F BOSTON PROPERTIE REIT 101121101 401,761 -19,839 -4.71 47,480 -1.67 0.3780
2014-05-15 2014-03-31 13F Beximco Pharmaceuticals REIT 101121101 421,600 519 0.12 48,286 14.25 0.3873
2014-02-14 2013-12-31 13F Beximco Pharmaceuticals REIT 101121101 421,081 421,081 42,264 0.3389
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.