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

SecurityARE / Alexandria Real Estate Equities, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership175,371 shares
Latest Disclosed Value $ 8,581,853
Sei Investments Co reports 25.57% increase in ownership of ARE / Alexandria Real Estate Equities, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 175,371 shares of Alexandria Real Estate Equities, Inc. (US:ARE) valued at $8,582,657 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 139,656 shares of Alexandria Real Estate Equities, Inc.. This represents a change in shares of 25.57% during the quarter. The current value of the position is $8,991,271 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)
2026-02-13 2025-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 175,371 35,715 25.57 8,582 -26.27 0.0085
2025-11-13 2025-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 139,656 1,385 1.00 11,639 15.88 0.0125
2025-08-14 2025-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 138,271 4,455 3.33 10,043 -18.88 0.0116
2025-05-14 2025-03-31 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 133,816 35,610 36.26 12,381 29.23 0.0159
2025-05-13 2025-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 97,619 -587 9,452 0.0103
2025-02-11 2024-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 98,206 -4,996 -4.84 9,581 -21.83 0.0123
2024-11-12 2024-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 103,202 89,107 632.19 12,256 643.63 0.0159
2024-08-13 2024-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 14,095 581 4.30 1,649 -5.40 0.0023
2024-05-07 2024-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 13,514 -8,263 -37.94 1,742 -36.88 0.0026
2024-02-14 2023-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 21,777 -180,106 -89.21 2,760 -86.34 0.0044
2023-11-14 2023-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 201,883 108,525 116.25 20,208 90.74 0.0363
2023-08-11 2023-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 93,358 -8,090 -7.97 10,595 -16.84 0.0185
2023-05-12 2023-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 101,448 -90,999 -47.29 12,741 -54.55 0.0237
2023-02-10 2022-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 192,447 -94,919 -33.03 28,034 -30.42 0.0623
2022-11-14 2022-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 287,366 29,367 11.38 40,286 7.58 0.0899
2022-08-15 2022-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 257,999 -111,324 -30.14 37,446 -49.62 0.0809
2022-05-13 2022-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 369,323 60,075 19.43 74,332 7.79 0.1494
2022-02-14 2021-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 309,248 77,897 33.67 68,959 55.95 0.1294
2021-11-12 2021-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 231,351 16,599 7.73 44,219 13.15 0.0928
2021-08-06 2021-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 214,752 -26,097 -10.84 39,081 -1.59 0.0867
2021-05-12 2021-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 240,849 -27,758 -10.33 39,713 -17.05 0.1001
2021-02-08 2020-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 268,607 -25,515 -8.67 47,878 1.73 0.1238
2020-12-04 2020-09-30 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 294,122 76,385 35.08 47,063 33.21 0.1363
2020-11-06 2020-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 294,276 76,539 47,088 113,377.4345
2020-08-17 2020-06-30 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 217,737 62,514 40.27 35,330 65.90 0.1096
2020-08-11 2020-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 101,192 -54,031 16,382 44,437.0470
2020-05-14 2020-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 155,223 92,519 147.55 21,296 110.31 0.0782
2020-02-06 2019-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 62,704 -20,980 -25.07 10,126 -21.42 0.0302
2019-11-12 2019-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 83,684 4,250 5.35 12,886 14.98 0.0330
2019-08-14 2019-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 79,434 -37,610 -32.13 11,207 -32.82 0.0366
2019-05-15 2019-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 117,044 31,793 37.29 16,681 56.78 0.0560
2019-02-13 2018-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 85,251 -10,040 -10.54 10,640 -11.26 0.0379
2018-11-08 2018-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 95,291 10,927 12.95 11,990 12.65 0.0435
2018-08-03 2018-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 84,364 71,618 561.89 10,644 569.01 0.0362
2018-05-11 2018-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 12,746 -58,173 -82.03 1,591 -82.76 0.0061
2018-02-08 2017-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 70,919 -56,964 -44.54 9,231 -39.96 0.0321
2017-11-06 2017-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 127,883 -41,891 -24.67 15,376 -24.82 0.0547
2017-07-31 2017-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 169,774 2,399 1.43 20,453 10.57 0.0815
2017-05-05 2017-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 167,375 22,807 15.78 18,498 21.12 0.0811
2017-02-02 2016-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 144,568 33,910 30.64 15,272 26.88 0.0740
2016-11-04 2016-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 110,658 36,256 48.73 12,037 56.28 0.0611
2016-08-11 2016-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 74,402 11,685 18.63 7,702 35.10 0.0462
2016-05-10 2016-03-31 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 62,717 -57,269 -47.73 5,701 -47.42 0.0355
2016-02-03 2015-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 119,986 19,875 19.85 10,842 27.90 0.0661
2015-11-02 2015-09-30 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 100,111 -6,398 -6.01 8,477 -9.01 0.0778
2015-10-30 2015-09-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 100,111 8,478
2015-08-07 2015-06-30 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 106,509 19 0.02 9,316 -10.77 0.0842
2015-08-04 2015-06-30 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 106,509 19 9,316 0.0842
2015-05-14 2015-03-31 13F/A-1 ALEXANDRIA REAL ESTATE EQ IN COM 015271109 106,490 2,927 2.83 10,440 13.59 0.0907
2015-05-01 2015-03-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 106,490 10,440
2015-02-10 2014-12-31 13F ALEXANDRIA REAL ESTATE EQ IN COM 015271109 103,563 103,563 9,191 0.0812
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.