Boston Properties, Inc.
US ˙ NYSE ˙ US1011211018

SecurityBXP / Boston Properties, Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership35,454 shares
Latest Disclosed Value $ 1,840,097
Stifel Financial Corp reports 13.41% increase in ownership of BXP / Boston Properties, Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 35,454 shares of Boston Properties, Inc. (US:BXP) valued at $1,840,063 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 31,261 shares of Boston Properties, Inc.. This represents a change in shares of 13.41% during the quarter. The current value of the position is $2,199,921 USD.

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)
2026-05-12 2026-03-31 13F BXP COM 101121101 35,454 4,193 13.41 1,840 -12.75 0.0017
2026-02-13 2025-12-31 13F BXP COM 101121101 31,261 -3,617 -10.37 2,110 -18.63 0.0019
2025-11-12 2025-09-30 13F BXP COM 101121101 34,878 -1,443 -3.97 2,593 5.80 0.0024
2025-08-14 2025-06-30 13F BXP COM 101121101 36,321 -714 -1.93 2,451 -1.53 0.0024
2025-05-14 2025-03-31 13F BXP COM 101121101 37,035 -2,688 -6.77 2,488 -15.75 0.0026
2025-02-13 2024-12-31 13F BXP COM 101121101 39,723 -504 -1.25 2,954 -8.75 0.0031
2024-11-14 2024-09-30 13F BXP COM 101121101 40,227 -1,274 -3.07 3,237 26.70 0.0034
2024-08-13 2024-06-30 13F BOSTON PROPERTIES COM 101121101 41,501 -4,540 -9.86 2,555 -15.04 0.0029
2024-05-14 2024-03-31 13F BOSTON PROPERTIES COM 101121101 46,041 6,356 16.02 3,007 7.97 0.0034
2024-02-12 2023-12-31 13F BOSTON PROPERTIES COM 101121101 39,685 6,641 20.10 2,785 41.68 0.0035
2023-11-13 2023-09-30 13F BOSTON PROPERTIES COM 101121101 33,044 -15,442 -31.85 1,965 -29.62 0.0028
2023-08-14 2023-06-30 13F BOSTON PROPERTIES COM 101121101 48,486 853 1.79 2,792 8.34 0.0038
2023-05-12 2023-03-31 13F BOSTON PROPERTIES COM 101121101 47,633 733 1.56 2,578 -18.68 0.0037
2023-02-13 2022-12-31 13F BOSTON PROPERTIES COM 101121101 46,900 -31,591 -40.25 3,169 -46.16 0.0048
2022-11-14 2022-09-30 13F BOSTON PROPERTIES COM 101121101 78,491 4,508 6.09 5,886 -10.59 0.0096
2022-08-15 2022-06-30 13F BOSTON PROPERTIES COM 101121101 73,983 -1,357 -1.80 6,583 -32.16 0.0103
2022-05-13 2022-03-31 13F BOSTON PROPERTIES COM 101121101 75,340 10,639 16.44 9,704 30.20 0.0132
2022-02-14 2021-12-31 13F BOSTON PROPERTIES COM 101121101 64,701 -692 -1.06 7,453 5.18 0.0099
2021-11-15 2021-09-30 13F BOSTON PROPERTIES COM 101121101 65,393 -1,225 -1.84 7,086 -7.18 0.0104
2021-08-13 2021-06-30 13F BOSTON PROPERTIES COM 101121101 66,618 -2,917 -4.20 7,634 8.42 0.0114
2021-05-14 2021-03-31 13F BOSTON PROPERTIES COM 101121101 69,535 -12,712 -15.46 7,041 -9.43 0.0116
2021-02-12 2020-12-31 13F BOSTON PROPERTIES COM 101121101 82,247 -4,626 -5.33 7,774 11.46 0.0139
2020-11-16 2020-09-30 13F BOSTON PROPERTIES COM 101121101 86,873 -14,117 -13.98 6,975 -23.59 0.0143
2020-08-14 2020-06-30 13F BOSTON PPTYS LTD PARTNERSHIP COM 101121101 100,990 -139,282 -57.97 9,128 -58.84 0.0210
2020-05-14 2020-03-31 13F BOSTON PROPERTIES COM 101121101 240,272 54,374 29.25 22,176 -13.50 0.0612
2020-02-13 2019-12-31 13F BOSTON PROPERTIES COM 101121101 185,898 929 0.50 25,636 6.84 0.0534
2019-11-19 2019-09-30 13F/A-1 BOSTON PROPERTIES COM 101121101 184,969 28,723 18.38 23,995 18.98 0.0612
2019-11-13 2019-09-30 13F BOSTON PROPERTIES COM 101121101 184,969 28,723 23,995 13,450.4002
2019-08-14 2019-06-30 13F BOSTON PROPERTIES COM 101121101 156,246 117,071 298.84 20,168 284.30 0.0520
2019-05-14 2019-03-31 13F BOSTON PROPERTIES COM 101121101 39,175 4,007 11.39 5,248 32.86 0.0148
2019-02-13 2018-12-31 13F BOSTON PROPERTIES COM 101121101 35,168 -343 -0.97 3,950 -9.63 0.0128
2018-11-13 2018-09-30 13F BOSTON PROPERTIES COM 101121101 35,511 -868 -2.39 4,371 -4.65 0.0125
2018-08-14 2018-06-30 13F BOSTON PROPERTIES COM 101121101 36,379 12,748 53.95 4,584 57.47 0.0141
2018-05-11 2018-03-31 13F BOSTON PROPERTIES COM 101121101 23,631 5,921 33.43 2,911 26.35 0.0092
2018-02-14 2017-12-31 13F BOSTON PROPERTIES COM 101121101 17,710 -643 -3.50 2,304 2.17 0.0073
2017-11-13 2017-09-30 13F BOSTON PROPERTIES COM 101121101 18,353 2,345 14.65 2,255 14.58 0.0078
2017-08-14 2017-06-30 13F BOSTON PROPERTIES COM 101121101 16,008 -936 -5.52 1,968 -12.34 0.0073
2017-05-10 2017-03-31 13F BOSTON PROPERTIES COM 101121101 16,944 275 1.65 2,245 7.01 0.0087
2017-02-16 2016-12-31 13F BOSTON PROPERTIES COM 101121101 16,669 -3,995 -19.33 2,098 -25.47 0.0089
2016-11-15 2016-09-30 13F BOSTON PROPERTIES COM 101121101 20,664 -5,513 -21.06 2,815 -18.50 0.0127
2016-08-17 2016-06-30 13F BOSTON PROPERTIES COM 101121101 26,177 284 1.10 3,454 4.98 0.0160
2016-05-16 2016-03-31 13F BOSTON PROPERTIES COM 101121101 25,893 -284 -1.08 3,290 -1.88 0.0175
2016-03-21 2015-12-31 13F/A-2 BOSTON PROPERTIES COM 101121101 26,177 3,844 17.21 3,353 26.34 0.0175
2016-02-26 2015-12-31 13F/A-1 BOSTON PROPERTIES COM 101121101 45,242 19,065 2,616 0.0137
2016-02-16 2015-12-31 13F BOSTON PROPERTIES COM 101121101 41,447 2,929
2015-11-16 2015-09-30 13F BOSTON PROPERTIES COM 101121101 22,333 -2,310 -9.37 2,654 -10.67 0.0149
2015-08-17 2015-06-30 13F/A-1 BOSTON PROPERTIES COM 101121101 24,643 -1,292 -4.98 2,971 -18.29 0.0154
2015-08-17 2015-06-30 13F BOSTON PROPERTIES COM 101121101 24,548 2,960
2015-05-14 2015-03-31 13F BOSTON PROPERTIES COM 101121101 25,935 2,795 12.08 3,636 21.69 0.0199
2015-02-13 2014-12-31 13F BOSTON PROPERTIES COM 101121101 23,140 15,530 204.07 2,988 239.55 0.0166
2014-11-13 2014-09-30 13F BOSTON PROPERTIES COM 101121101 7,610 1,300 20.60 880 17.96 0.0077
2014-08-14 2014-06-30 13F BOSTON PROPERTIES COM 101121101 6,310 490 8.42 746 11.84 0.0067
2014-05-15 2014-03-31 13F BOSTON PROPERTIES COM 101121101 5,820 5,820 667 0.0064
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.