Boston Properties, Inc.
MX ˙ BMV ˙ US1011211018
SecurityMX:BXP / Boston Properties, Inc.
InstitutionJpmorgan Chase & Co
Latest Disclosed Ownership4,214,020 shares
Latest Disclosed Value $ 218,370,517
Jpmorgan Chase & Co ownership in BXP / Boston Properties, Inc.

On May 13, 2026 - Jpmorgan Chase & Co filed a 13F-HR/A form disclosing ownership of 4,214,020 shares of Boston Properties, Inc. (MX:BXP) valued at $218,370,517 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 3,423,514 shares of Boston Properties, Inc.. This represents a change in shares of 23.09% during the quarter.

Jpmorgan Chase & Co has a history of taking positions in derivatives of the underlying security (BXP) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 47,000 of underlying shares valued at $2,435,540 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:BXP / Boston Properties, Inc. Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F/A-1 BXP COMMON 101121101 4,214,020 790,506 23.09 218,371 -5.47 0.0140
2026-02-11 2025-12-31 13F BXP COMMON 101121101 3,423,514 485,647 16.53 231,019 5.78 0.0145
2025-11-26 2025-09-30 13F/A-1 BXP COMMON 101121101 2,937,867 -1,034,593 -26.04 218,401 -18.51 0.0131
2025-11-07 2025-09-30 13F BXP COMMON 101121101 2,937,867 -1,034,593 218,401 0.0014
2025-08-12 2025-06-30 13F BXP COMMON 101121101 3,972,460 2,436 0.06 268,022 0.48 0.0175
2025-05-12 2025-03-31 13F BXP COMMON 101121101 3,970,024 761,883 23.75 266,746 11.82 0.0195
2025-02-12 2024-12-31 13F BXP COMMON 101121101 3,208,141 -1,587,022 -33.10 238,557 -38.17 0.0178
2024-12-26 2024-09-30 13F/A-1 BOSTON PROPERTIES INC COM COMMON 101121101 4,795,163 -469,331 -8.92 385,819 19.05 0.0293
2024-11-08 2024-09-30 13F BOSTON PROPERTIES INC COM COMMON 101121101 4,795,163 -469,331 385,819 0.0294
2024-12-26 2024-06-30 13F/A-1 BOSTON PROPERTIES COMMON 101121101 5,264,494 690,781 15.10 324,082 8.49 0.0266
2024-08-12 2024-06-30 13F BOSTON PROPERTIES COMMON 101121101 5,264,494 690,781 324,082 0.0266
2024-12-26 2024-03-31 13F/A-1 BOSTON PROPERTIES COMMON 101121101 4,573,713 -1,295,905 -22.08 298,709 -27.48 0.0252
2024-05-10 2024-03-31 13F BOSTON PROPERTIES COMMON 101121101 4,573,713 -1,295,905 298,709 0.0253
2024-12-26 2023-12-31 13F/A-1 BOSTON PROPERTIES COMMON 101121101 5,869,618 -446,601 -7.07 411,871 9.63 0.0395
2024-02-12 2023-12-31 13F BOSTON PROPERTIES COMMON 101121101 5,869,618 -446,601 411,871 0.0396
2023-11-14 2023-09-30 13F BOSTON PROPERTIES COMMON 101121101 6,316,219 -1,911,853 -23.24 375,689 -20.72 0.0415
2023-08-11 2023-06-30 13F BOSTON PROPERTIES COMMON 101121101 8,228,072 1,498,868 22.27 473,855 30.11 0.0515
2023-05-18 2023-03-31 13F/A-1 BOSTON PROPERTIES COMMON 101121101 6,729,204 -1,147,450 -14.57 364,185 68,355.83 0.0444
2023-05-11 2023-03-31 13F BOSTON PROPERTIES COMMON 101121101 6,662,056 -1,214,598 364,184 0.0054
2023-02-13 2022-12-31 13F BOSTON PROPERTIES COMMON 101121101 7,876,654 117,531 1.51 532 -99.91 0.0702
2022-11-14 2022-09-30 13F BOSTON PROPERTIES COMMON 101121101 7,759,123 810,938 11.67 581,699 -5.91 0.0835
2022-08-11 2022-06-30 13F BOSTON PROPERTIES COMMON 101121101 6,948,185 -841,442 -10.80 618,252 -38.38 0.0861
2022-05-11 2022-03-31 13F BOSTON PROPERTIES COMMON 101121101 7,789,627 1,188,677 18.01 1,003,303 31.96 0.1208
2022-02-11 2021-12-31 13F/A-1 BOSTON PROPERTIES COMMON 101121101 6,600,950 797,007 13.73 760,299 20.90 0.0878
2022-02-10 2021-12-31 13F BOSTON PROPERTIES COMMON 101121101 6,600,950 797,007 760,299 0.0129
2021-11-12 2021-09-30 13F BOSTON PROPERTIES COMMON 101121101 5,803,943 538,919 10.24 628,858 4.23 0.0778
2021-08-12 2021-06-30 13F BOSTON PROPERTIES COMMON 101121101 5,265,024 -903,129 -14.64 603,321 -3.40 0.0720
2021-05-12 2021-03-31 13F BOSTON PROPERTIES COMMON 101121101 6,168,153 35,196 0.57 624,587 7.73 0.0834
2021-02-19 2020-12-31 13F/A-1 BOSTON PROPERTIES COMMON 101121101 6,132,957 413,025 7.22 579,750 26.25 0.0852
2021-02-11 2020-12-31 13F BOSTON PROPERTIES COMMON 101121101 6,132,957 413,025 579,750 14,337.6306
2020-11-12 2020-09-30 13F/A-1 BOSTON PROPERTIES COMMON 101121101 5,719,932 913,934 19.02 459,195 5.72 0.0772
2020-11-12 2020-09-30 13F BOSTON PROPERTIES COMMON 101121101 6,440,652 517,054
2020-08-11 2020-06-30 13F BOSTON PPTYS LTD PARTNERSHIP COMMON 101121101 4,805,998 260,311 5.73 434,367 3.61 0.0838
2020-05-12 2020-03-31 13F BOSTON PROPERTIES COMMON 101121101 4,545,687 419,911 10.18 419,250 -26.29 0.0984
2020-02-11 2019-12-31 13F BOSTON PROPERTIES COMMON 101121101 4,125,776 -10,331 -0.25 568,780 6.06 0.1061
2019-11-12 2019-09-30 13F BOSTON PROPERTIES COMMON 101121101 4,136,107 164,033 4.13 536,287 5.46 0.1068
2019-08-07 2019-06-30 13F BOSTON PROPERTIES COMMON 101121101 3,972,074 -375,267 -8.63 508,545 -12.62 0.0994
2019-05-07 2019-03-31 13F BOSTON PROPERTIES COMMON 101121101 4,347,341 327,450 8.15 582,022 28.64 0.1189
2019-02-11 2018-12-31 13F BOSTON PROPERTIES COMMON 101121101 4,019,891 -254,997 -5.96 452,440 -14.02 0.1046
2018-11-13 2018-09-30 13F/A-1 BOSTON PROPERTIES COMMON 101121101 4,274,888 326,351 8.27 526,197 6.25 0.1008
2018-11-07 2018-09-30 13F BOSTON PROPERTIES COMMON 101121101 4,274,888 326,351 526,197
2018-08-14 2018-06-30 13F BOSTON PROPERTIES COMMON 101121101 3,948,537 -193,454 -4.67 495,225 -2.97 0.1018
2018-05-10 2018-03-31 13F BOSTON PROPERTIES COMMON 101121101 4,141,991 356,355 9.41 510,377 3.68 0.1094
2018-02-13 2017-12-31 13F BOSTON PROPERTIES COMMON 101121101 3,785,636 -260,210 -6.43 492,245 -0.90 0.1037
2017-11-09 2017-09-30 13F BOSTON PROPERTIES COMMON 101121101 4,045,846 228,106 5.97 496,710 5.76 0.1096
2017-08-09 2017-06-30 13F BOSTON PROPERTIES COMMON 101121101 3,817,740 -124,749 -3.16 469,660 -10.03 0.1073
2017-05-10 2017-03-31 13F BOSTON PROPERTIES COMMON 101121101 3,942,489 1,233,425 45.53 522,026 53.20 0.1193
2017-02-06 2016-12-31 13F BOSTON PROPERTIES COMMON 101121101 2,709,064 -1,140,278 -29.62 340,747 -35.05 0.0819
2016-11-04 2016-09-30 13F BOSTON PROPERTIES COMMON 101121101 3,849,342 140,967 3.80 524,627 7.26 0.1291
2016-08-08 2016-06-30 13F BOSTON PROPERTIES COMMON 101121101 3,708,375 -804,691 -17.83 489,134 -14.71 0.1220
2016-05-10 2016-03-31 13F BOSTON PROPERTIES COMMON 101121101 4,513,066 315,482 7.52 573,522 7.13 0.1468
2016-02-12 2015-12-31 13F BOSTON PROPERTIES COMMON 101121101 4,197,584 297,588 7.63 535,361 15.94 0.1344
2015-11-13 2015-09-30 13F BOSTON PROPERTIES COMMON 101121101 3,899,996 -566,422 -12.68 461,758 -14.59 0.1234
2015-08-14 2015-06-30 13F BOSTON PROPERTIES COMMON 101121101 4,466,418 928 0.02 540,615 -13.82 0.1274
2015-05-15 2015-03-31 13F BOSTON PROPERTIES COMMON 101121101 4,465,490 117,480 2.70 627,313 12.11 0.1429
2015-02-13 2014-12-31 13F BOSTON PROPERTIES COMMON 101121101 4,348,010 -225,715 -4.94 559,545 5.68 0.1279
2014-12-08 2014-09-30 13F/A-1 BOSTON PROPERTIES COMMON 101121101 4,573,725 843,389 22.61 529,455 20.10 0.1255
2014-11-14 2014-09-30 13F BOSTON PROPERTIES COMMON 101121101 4,573,725 529,455
2014-09-03 2014-06-30 13F/A-1 BOSTON PROPERTIES COMMON 101121101 3,730,336 1,126,714 43.27 440,851 47.84 0.1119
2014-08-14 2014-06-30 13F BOSTON PROPERTIES COMMON 101121101 3,730,336 440,851
2014-05-15 2014-03-31 13F BOSTON PROPERTIES COMMON 101121101 2,603,622 90,715 3.61 298,193 18.23 0.0823
2014-02-26 2013-12-31 13F/A-1 BOSTON PROPERTIES COMMON 101121101 2,512,907 -19,235 -0.76 252,219 -6.82 0.0716
2014-02-13 2013-12-31 13F BOSTON PROPERTIES COMMON 101121101 2,512,907 252,219
2013-10-31 2013-09-30 13F BOSTON PROPERTIES COMMON 101121101 2,532,142 -363,340 -12.55 270,685 -11.36 0.0802
2013-08-13 2013-06-30 13F BOSTON PROPERTIES COMMON 101121101 2,895,482 2,895,482 305,386 0.0973
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-12-26 2023-12-31 13F/A BOSTON PROPERTIES OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-12 2023-12-31 13F BOSTON PROPERTIES OPTION Call 0 0 n/a n/a n/a
2023-11-14 2023-09-30 13F BOSTON PROPERTIES OPTION Call 8,400 -16.00 500 -13.22 n/a n/a n/a
2023-08-11 2023-06-30 13F BOSTON PROPERTIES OPTION Call 10,000 0.00 576 6.28 n/a n/a n/a
2023-05-18 2023-03-31 13F/A BOSTON PROPERTIES OPTION Call 10,000 -74.68 541 26,950.00 n/a n/a n/a
2023-05-11 2023-03-31 13F BOSTON PROPERTIES OPTION Call 10,000 541 n/a n/a n/a
2023-02-13 2022-12-31 13F BOSTON PROPERTIES OPTION Call 39,500 3 n/a n/a n/a
2022-11-14 2022-09-30 13F BOSTON PROPERTIES OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-11 2022-06-30 13F BOSTON PROPERTIES OPTION Call 109,700 -5.43 9,761 -34.67 n/a n/a n/a
2022-05-11 2022-03-31 13F BOSTON PROPERTIES OPTION Call 116,000 14,941 n/a n/a n/a
2022-02-11 2021-12-31 13F/A BOSTON PROPERTIES OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-10 2021-12-31 13F BOSTON PROPERTIES OPTION Call 0 0 n/a n/a n/a
2021-11-12 2021-09-30 13F BOSTON PROPERTIES OPTION Call 150,000 165.02 16,253 150.59 n/a n/a n/a
2021-08-12 2021-06-30 13F BOSTON PROPERTIES OPTION Call 56,600 6,486 n/a n/a n/a
2020-05-12 2020-03-31 13F BOSTON PROPERTIES OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-11 2019-12-31 13F BOSTON PROPERTIES OPTION Call 20,000 0.00 2,757 6.32 n/a n/a n/a
2019-11-12 2019-09-30 13F BOSTON PROPERTIES OPTION Call 20,000 0.00 2,593 1.25 n/a n/a n/a
2019-08-07 2019-06-30 13F BOSTON PROPERTIES OPTION Call 20,000 -45.95 2,561 -48.30 n/a n/a n/a
2019-05-07 2019-03-31 13F BOSTON PROPERTIES OPTION Call 37,000 85.00 4,954 93.44 n/a n/a n/a
2016-11-04 2016-09-30 13F BOSTON PROPERTIES OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-08 2016-06-30 13F BOSTON PROPERTIES OPTION Call 7,400 976 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A BXP OPTION Put 47,000 34.29 2,436 3.13 n/a n/a n/a
2026-02-11 2025-12-31 13F BXP OPTION Put 35,000 2,362 n/a n/a n/a
2023-11-14 2023-09-30 13F BOSTON PROPERTIES OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-11 2023-06-30 13F BOSTON PROPERTIES OPTION Put 1,000 58 n/a n/a n/a
2022-11-14 2022-09-30 13F BOSTON PROPERTIES OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-11 2022-06-30 13F BOSTON PROPERTIES OPTION Put 123,100 10,953 n/a n/a n/a
2020-05-12 2020-03-31 13F BOSTON PROPERTIES OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-11 2019-12-31 13F BOSTON PROPERTIES OPTION Put 20,000 0.00 2,757 6.32 n/a n/a n/a
2019-11-12 2019-09-30 13F BOSTON PROPERTIES OPTION Put 20,000 0.00 2,593 1.25 n/a n/a n/a
2019-08-07 2019-06-30 13F BOSTON PROPERTIES OPTION Put 20,000 0.00 2,561 -4.37 n/a n/a n/a
2019-05-07 2019-03-31 13F BOSTON PROPERTIES OPTION Put 20,000 2,678 n/a n/a n/a
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.