Boston Properties, Inc.
US ˙ NYSE ˙ US1011211018

SecurityBXP / Boston Properties, Inc.
InstitutionEnsign Peak Advisors, Inc
Latest Disclosed Ownership7,337 shares
Latest Disclosed Value $ 380,790
Ensign Peak Advisors, Inc reports 24.90% decrease in ownership of BXP / Boston Properties, Inc.

On May 13, 2026 - Ensign Peak Advisors, Inc filed a 13F-HR form disclosing ownership of 7,337 shares of Boston Properties, Inc. (US:BXP) valued at $380,790 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 9,770 shares of Boston Properties, Inc.. This represents a change in shares of -24.90% during the quarter. The current value of the position is $457,315 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)
2026-05-13 2026-03-31 13F BXP COM 101121101 7,337 -2,433 -24.90 381 -42.34 0.0007
2026-02-12 2025-12-31 13F BXP COM 101121101 9,770 -17,900 -64.69 659 -67.95 0.0012
2025-11-13 2025-09-30 13F BXP COM 101121101 27,670 -14,700 -34.69 2,057 -28.06 0.0034
2025-08-12 2025-06-30 13F BXP COM 101121101 42,370 -10,100 -19.25 2,859 -18.92 0.0049
2025-05-14 2025-03-31 13F BXP COM 101121101 52,470 -1,500 -2.78 3,525 -12.16 0.0067
2025-02-14 2024-12-31 13F BXP COM 101121101 53,970 0 0.00 4,013 -7.58 0.0071
2024-11-14 2024-09-30 13F BXP COM 101121101 53,970 0 0.00 4,342 30.70 0.0076
2024-08-13 2024-06-30 13F BOSTON PROPERTIES COM 101121101 53,970 -450 -0.83 3,322 -6.53 0.0061
2024-05-14 2024-03-31 13F BOSTON PROPERTIES COM 101121101 54,420 -1,533 -2.74 3,554 -9.48 0.0065
2024-02-14 2023-12-31 13F BOSTON PROPERTIES COM 101121101 55,953 10,400 22.83 3,926 44.92 0.0078
2023-11-13 2023-09-30 13F BOSTON PROPERTIES COM 101121101 45,553 -21,255 -31.82 2,709 -29.58 0.0058
2023-08-14 2023-06-30 13F BOSTON PROPERTIES COM 101121101 66,808 -15,750 -19.08 3,847 -13.90 0.0078
2023-05-15 2023-03-31 13F BOSTON PROPERTIES COM 101121101 82,558 35,328 74.80 4,468 40.02 0.0097
2023-02-13 2022-12-31 13F Boston Properties COM 101121101 47,230 9,222 24.26 3,192 12.00 0.0072
2022-11-14 2022-09-30 13F Boston Properties COM 101121101 38,008 3,760 10.98 2,849 -6.50 0.0071
2022-08-12 2022-06-30 13F Boston Properties COM 101121101 34,248 -28,676 -45.57 3,047 -62.41 0.0072
2022-05-16 2022-03-31 13F Boston Properties COM 101121101 62,924 14,375 29.61 8,105 44.94 0.0165
2022-02-11 2021-12-31 13F Boston Properties COM 101121101 48,549 33,593 224.61 5,592 245.19 0.0107
2021-11-12 2021-09-30 13F Boston Properties COM 101121101 14,956 -5,001 -25.06 1,620 -29.20 0.0034
2021-08-13 2021-06-30 13F Boston Properties COM 101121101 19,957 -19,985 -50.04 2,288 -43.42 0.0046
2021-05-12 2021-03-31 13F Boston Properties COM 101121101 39,942 12,400 45.02 4,044 55.36 0.0087
2021-02-12 2020-12-31 13F Boston Properties COM 101121101 27,542 -14,220 -34.05 2,603 -22.39 0.0059
2020-11-12 2020-09-30 13F Boston Properties COM 101121101 41,762 15,043 56.30 3,354 38.88 0.0085
2020-08-12 2020-06-30 13F Boston Properties COM 101121101 26,719 7,130 36.40 2,415 33.72 0.0066
2020-05-11 2020-03-31 13F Boston Properties COM 101121101 19,589 -12,513 -38.98 1,806 -59.20 0.0060
2020-02-14 2019-12-31 13F Boston Properties REIT 101121101 32,102 32,102 4,426 0.0117
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.