Boston Properties, Inc.
MX ˙ BMV ˙ US1011211018
SecurityMX:BXP / Boston Properties, Inc.
InstitutionGeode Capital Management, Llc
Latest Disclosed Ownership4,312,973 shares
Latest Disclosed Value $ 223,490,847
Geode Capital Management, Llc reports 1.01% increase in ownership of BXP / Boston Properties, Inc.

On May 15, 2026 - Geode Capital Management, Llc filed a 13F-HR form disclosing ownership of 4,312,973 shares of Boston Properties, Inc. (MX:BXP) valued at $223,490,847 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 4,270,027 shares of Boston Properties, Inc.. This represents a change in shares of 1.01% 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 4,312,973 42,946 1.01 223,491 -22.16 0.0074
2026-02-09 2025-12-31 13F BXP COM 101121101 4,270,027 55,621 1.32 287,121 -8.01 0.0177
2025-11-12 2025-09-30 13F BXP COM 101121101 4,214,406 60,562 1.46 312,132 11.80 0.0199
2025-08-08 2025-06-30 13F BXP COM 101121101 4,153,844 68,481 1.68 279,186 2.00 0.0196
2025-05-13 2025-03-31 13F BXP COM 101121101 4,085,363 147,398 3.74 273,700 -6.31 0.0215
2025-02-12 2024-12-31 13F BXP COM 101121101 3,937,965 85,819 2.23 292,149 -5.45 0.0226
2024-11-12 2024-09-30 13F BXP COM 101121101 3,852,146 15,154 0.39 308,980 31.12 0.0250
2024-08-09 2024-06-30 13F BXP COM 101121101 3,836,992 79,380 2.11 235,639 -3.73 0.0207
2024-05-13 2024-03-31 13F BOSTON PROPERTIES COM 101121101 3,757,612 119,627 3.29 244,766 -3.89 0.0226
2024-02-13 2023-12-31 13F BOSTON PROPERTIES COM 101121101 3,637,985 65,734 1.84 254,683 20.10 0.0266
2023-11-13 2023-09-30 13F BOSTON PROPERTIES COM 101121101 3,572,251 87,317 2.51 212,067 5.91 0.0253
2023-08-11 2023-06-30 13F BOSTON PROPERTIES COM 101121101 3,484,934 163,588 4.93 200,232 11.63 0.0235
2023-05-15 2023-03-31 13F BOSTON PROPERTIES COM 101121101 3,321,346 77,527 2.39 179,377 82,183.03 0.0233
2023-02-13 2022-12-31 13F BOSTON PROPERTIES COM 101121101 3,243,819 55,133 1.73 219 -99.91 0.0307
2022-11-14 2022-09-30 13F BOSTON PROPERTIES COM 101121101 3,188,686 36,064 1.14 238,805 -14.73 0.0362
2022-08-12 2022-06-30 13F BOSTON PROPERTIES COM 101121101 3,152,622 42,083 1.35 280,062 -29.95 0.0410
2022-05-13 2022-03-31 13F BOSTON PROPERTIES COM 101121101 3,110,539 126,413 4.24 399,776 16.58 0.0499
2022-02-11 2021-12-31 13F BOSTON PROPERTIES COM 101121101 2,984,126 73,304 2.52 342,923 8.99 0.0413
2021-11-12 2021-09-30 13F BOSTON PROPERTIES COM 101121101 2,910,822 64,514 2.27 314,648 -3.29 0.0424
2021-08-13 2021-06-30 13F BOSTON PROPERTIES COM 101121101 2,846,308 64,930 2.33 325,347 15.79 0.0448
2021-05-12 2021-03-31 13F BOSTON PROPERTIES COM 101121101 2,781,378 37,422 1.36 280,977 8.57 0.0430
2021-02-12 2020-12-31 13F BOSTON PROPERTIES COM 101121101 2,743,956 -149,780 -5.18 258,806 11.56 0.0434
2020-11-13 2020-09-30 13F BOSTON PROPERTIES COM 101121101 2,893,736 33,367 1.17 231,984 -10.14 0.0455
2020-08-13 2020-06-30 13F BOSTON PROPERTIES COM 101121101 2,860,369 -70,385 -2.40 258,156 -4.36 0.0552
2020-05-14 2020-03-31 13F BOSTON PROPERTIES COM 101121101 2,930,754 123,550 4.40 269,928 -30.14 0.0703
2020-02-20 2019-12-31 13F/A-1 BOSTON PROPERTIES COM 101121101 2,807,204 119,281 4.44 386,393 11.00 0.0808
2020-02-13 2019-12-31 13F BOSTON PROPERTIES COM 101121101 2,807,204 119,281 386,393 49,242.3999
2019-11-12 2019-09-30 13F BOSTON PROPERTIES COM 101121101 2,687,923 -81,394 -2.94 348,102 -2.42 0.0812
2019-08-14 2019-06-30 13F BOSTON PROPERTIES COM 101121101 2,769,317 154,534 5.91 356,748 2.05 0.0863
2019-05-14 2019-03-31 13F BOSTON PROPERTIES COM 101121101 2,614,783 177,723 7.29 349,566 27.63 0.0906
2019-03-06 2018-12-31 13F/A-1 BOSTON PROPERTIES COM 101121101 2,437,060 186,025 8.26 273,894 -0.99 0.0847
2019-02-13 2018-12-31 13F BOSTON PROPERTIES COM 101121101 2,437,060 186,025 273,894
2018-11-13 2018-09-30 13F BOSTON PROPERTIES COM 101121101 2,251,035 147,531 7.01 276,645 5.05 0.0780
2018-08-14 2018-06-30 13F BOSTON PROPERTIES COM 101121101 2,103,504 84,032 4.16 263,358 6.05 0.0810
2018-05-15 2018-03-31 13F BOSTON PROPERTIES COM 101121101 2,019,472 120,126 6.32 248,329 0.73 0.0809
2018-02-13 2017-12-31 13F BOSTON PROPERTIES COM 101121101 1,899,346 75,618 4.15 246,520 10.20 0.0837
2017-11-14 2017-09-30 13F BOSTON PROPERTIES COM 101121101 1,823,728 48,713 2.74 223,709 2.60 0.0826
2017-08-14 2017-06-30 13F BOSTON PROPERTIES COM 101121101 1,775,015 32,884 1.89 218,041 -5.36 0.0857
2017-06-21 2017-03-31 13F/A-1 BOSTON PROPERTIES INC COM COM 101121101 1,742,131 129,760 8.05 230,394 13.72 0.0945
2017-05-12 2017-03-31 13F BOSTON PROPERTIES INC COM COM 101121101 1,742,131 230,394
2017-02-14 2016-12-31 13F BOSTON PROPERTIES INC COM COM 101121101 1,612,371 78,005 5.08 202,593 -2.99 0.0942
2016-11-10 2016-09-30 13F BOSTON PROPERTIES INC COM COM 101121101 1,534,366 108,826 7.63 208,833 11.24 0.1052
2016-08-12 2016-06-30 13F BOSTON PROPERTIES INC COM COM 101121101 1,425,540 -43,163 -2.94 187,737 0.76 0.1021
2016-05-13 2016-03-31 13F BOSTON PROPERTIES INC COM COM 101121101 1,468,703 37,497 2.62 186,322 2.26 0.0989
2016-02-12 2015-12-31 13F BOSTON PROPERTIES INC COM COM 101121101 1,431,206 15,071 1.06 182,212 8.86 0.1038
2015-11-13 2015-09-30 13F BOSTON PROPERTIES INC COM COM 101121101 1,416,135 -6,682 -0.47 167,388 -2.64 0.1015
2015-08-14 2015-06-30 13F BOSTON PROPERTIES INC COM COM 101121101 1,422,817 -21,329 -1.48 171,928 -15.14 0.0982
2015-05-14 2015-03-31 13F BOSTON PROPERTIES INC COM COM 101121101 1,444,146 86,507 6.37 202,610 16.09 0.1158
2015-02-12 2014-12-31 13F BOSTON PROPERTIES INC COM COM 101121101 1,357,639 45,486 3.47 174,523 15.02 0.1038
2014-11-14 2014-09-30 13F BOSTON PROPERTIES INC COM COM 101121101 1,312,153 4,738 0.36 151,728 -1.75 0.0984
2014-08-13 2014-06-30 13F BOSTON PROPERTIES INC COM COM 101121101 1,307,415 9,883 0.76 154,432 3.96 0.0998
2014-05-14 2014-03-31 13F BOSTON PROPERTIES INC COM COM 101121101 1,297,532 26,696 2.10 148,550 16.49 0.0996
2014-02-14 2013-12-31 13F BOSTON PROPERTIES INC COM COM 101121101 1,270,836 29,905 2.41 127,521 -3.85 0.0884
2013-11-14 2013-09-30 13F BOSTON PROPERTIES INC COM COM 101121101 1,240,931 50,874 4.27 132,626 5.68 0.1063
2013-08-14 2013-06-30 13F BOSTON PROPERTIES INC COM COM 101121101 1,190,057 1,190,057 125,493 0.1103
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.