Alexandria Real Estate Equities, Inc.
US ˙ NYSE ˙ US0152711091

SecurityARE / Alexandria Real Estate Equities, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership72,556 shares
Latest Disclosed Value $ 3,367,324
Janus Henderson Group Plc reports 335.82% increase in ownership of ARE / Alexandria Real Estate Equities, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 72,556 shares of Alexandria Real Estate Equities, Inc. (US:ARE) valued at $3,368,050 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 16,648 shares of Alexandria Real Estate Equities, Inc.. This represents a change in shares of 335.82% during the quarter. The current value of the position is $3,719,946 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)
2026-05-18 2026-03-31 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 72,556 55,908 335.82 3,367 313.13 0.0006
2026-05-15 2026-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 72,556 55,908 3,367 0.0006
2026-02-17 2025-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 16,648 277 1.69 815 -40.21 0.0004
2025-11-14 2025-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 16,371 -3,666 -18.30 1,364 -6.32 0.0006
2025-08-14 2025-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 20,037 -18,273 -47.70 1,455 -60.26 0.0007
2025-05-15 2025-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 38,310 17,841 87.16 3,662 83.42 0.0020
2025-02-14 2024-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 20,469 -3,144 -13.31 1,996 -28.79 0.0010
2024-11-14 2024-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 23,613 0 0.00 2,804 1.48 0.0014
2024-08-14 2024-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 23,613 1,499 6.78 2,762 -3.09 0.0015
2024-05-15 2024-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 22,114 -775 -3.39 2,850 -1.79 0.0016
2024-02-14 2023-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 22,889 -37,870 -62.33 2,903 -52.29 0.0017
2023-11-14 2023-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 60,759 36,576 151.25 6,082 121.73 0.0040
2023-08-14 2023-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 24,183 -982,470 -97.60 2,744 -97.83 0.0017
2023-05-15 2023-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 1,006,653 136,960 15.75 126,392 -0.25 0.0833
2023-02-14 2022-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 869,693 -84,600 -8.87 126,703 -5.38 0.0905
2023-01-13 2022-09-30 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 954,293 255,761 36.61 133,910 32.10 0.1003
2022-11-14 2022-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 954,293 255,761 133,910 0.1002
2022-08-15 2022-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 698,532 -4,918 -0.70 101,372 -28.42 0.0699
2022-05-16 2022-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 703,450 36,024 5.40 141,625 -4.83 0.0684
2022-02-14 2021-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 667,426 23,014 3.57 148,819 20.84 0.0621
2021-11-16 2021-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 644,412 -135,551 -17.38 123,152 -13.19 0.0539
2021-08-16 2021-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 779,963 224,738 40.48 141,858 55.56 0.0607
2021-05-17 2021-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 555,225 145,654 35.56 91,193 25.01 0.0416
2021-02-16 2020-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 409,571 8,429 2.10 72,950 13.73 0.0339
2020-11-16 2020-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 401,142 -15,529 -3.73 64,145 -5.08 0.0334
2020-08-14 2020-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 416,671 -4,447 -1.06 67,579 17.31 0.0379
2020-05-14 2020-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 421,118 -24,624 -5.52 57,609 -20.00 0.0396
2020-02-18 2019-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 445,742 23,665 5.61 72,013 10.78 0.0369
2019-11-14 2019-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 422,077 -82,928 -16.42 65,005 -8.72 0.0352
2019-07-31 2019-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 505,005 37,516 8.03 71,217 6.87 0.0388
2019-04-30 2019-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 467,489 50,368 12.08 66,640 38.63 0.0369
2019-02-06 2018-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 417,121 -34,345 -7.61 48,070 -15.35 0.0307
2018-11-09 2018-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 451,466 -34,218 -7.05 56,789 -7.33 0.0303
2018-08-10 2018-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 485,684 -170,110 -25.94 61,280 -25.17 0.0349
2018-05-14 2018-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 655,794 -159,247 -19.54 81,891 -23.06 0.0483
2018-03-12 2017-12-31 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 815,041 -211,764 -20.62 106,437 -12.86 0.0655
2018-02-09 2017-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 815,041 -211,764 106,437
2017-11-14 2017-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 1,026,805 72,548 7.60 122,141 6.23 0.0783
2017-08-17 2017-06-30 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 954,257 838,568 724.85 114,975 799.37 0.0784
2017-08-14 2017-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 954,257 838,568 114,975
2017-05-03 2017-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 115,689 12,005 11.58 12,784 10.95 0.0898
2017-01-30 2016-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 103,684 14,221 15.90 11,522 18.38 0.0850
2016-10-24 2016-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 89,463 78,525 717.91 9,733 759.81 0.0717
2016-07-29 2016-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 10,938 5,838 114.47 1,132 143.97 0.0094
2016-05-12 2016-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 5,100 5,100 -98.04 464 -97.20 0.0038
2014-01-14 2013-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 0 -260,000 -100.00 0 -100.00
2013-11-12 2013-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 260,000 260,000 16,598 0.1831
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.