Public Storage
MX ˙ BMV ˙ US74460D1090
SecurityMX:PSA / Public Storage
InstitutionWellington Management Group Llp
Latest Disclosed Ownership1,453,748 shares
Latest Disclosed Value $ 393,791,258
Wellington Management Group Llp reports 41.63% increase in ownership of PSA / Public Storage

On May 15, 2026 - Wellington Management Group Llp filed a 13F-HR form disclosing ownership of 1,453,748 shares of Public Storage (MX:PSA) valued at $393,791,258 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,026,431 shares of Public Storage. This represents a change in shares of 41.63% during the quarter.

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)
2026-05-15 2026-03-31 13F PUBLIC STORAGE OPER COM 74460D109 1,453,748 427,317 41.63 393,791 47.84 0.0104
2026-02-17 2025-12-31 13F PUBLIC STORAGE OPER COM 74460D109 1,026,431 -1,730,791 -62.77 266,359 -66.56 0.0467
2025-11-14 2025-09-30 13F PUBLIC STORAGE OPER COM 74460D109 2,757,222 -172,334 -5.88 796,424 -7.35 0.1394
2025-08-14 2025-06-30 13F PUBLIC STORAGE OPER COM 74460D109 2,929,556 -58,106 -1.94 859,590 -3.87 0.1560
2025-05-13 2025-03-31 13F PUBLIC STORAGE OPER COM 74460D109 2,987,662 30,775 1.04 894,177 0.99 0.1720
2025-02-12 2024-12-31 13F PUBLIC STORAGE OPER COM 74460D109 2,956,887 -402,516 -11.98 885,410 -27.57 0.1621
2024-11-14 2024-09-30 13F PUBLIC STORAGE OPER COM 74460D109 3,359,403 -595,280 -15.05 1,222,386 7.46 0.2141
2024-08-14 2024-06-30 13F PUBLIC STORAGE OPER COM 74460D109 3,954,683 -46,508 -1.16 1,137,565 -1.98 0.2031
2024-05-15 2024-03-31 13F PUBLIC STORAGE COM 74460D109 4,001,191 -186,122 -4.44 1,160,585 -9.13 0.2056
2024-02-12 2023-12-31 13F PUBLIC STORAGE COM 74460D109 4,187,313 -47,341 -1.12 1,277,130 14.45 0.2384
2023-11-14 2023-09-30 13F PUBLIC STORAGE COM 74460D109 4,234,654 -216,565 -4.87 1,115,916 -14.11 0.2238
2023-08-14 2023-06-30 13F PUBLIC STORAGE COM 74460D109 4,451,219 21,705 0.49 1,299,222 -2.92 0.2463
2023-05-12 2023-03-31 13F PUBLIC STORAGE COM 74460D109 4,429,514 -227,922 -4.89 1,338,333 2.56 0.2652
2023-02-13 2022-12-31 13F PUBLIC STORAGE COM 74460D109 4,657,436 324,129 7.48 1,304,967 2.85 0.2617
2022-11-14 2022-09-30 13F PUBLIC STORAGE COM 74460D109 4,333,307 -25,669 -0.59 1,268,836 -6.90 0.2703
2022-08-15 2022-06-30 13F PUBLIC STORAGE COM 74460D109 4,358,976 317,106 7.85 1,362,920 -13.60 0.2745
2022-05-16 2022-03-31 13F PUBLIC STORAGE COM 74460D109 4,041,870 74,406 1.88 1,577,461 6.15 0.2701
2022-02-11 2021-12-31 13F PUBLIC STORAGE COM 74460D109 3,967,464 -800,000 -16.78 1,486,053 4.92 0.2377
2021-11-15 2021-09-30 13F PUBLIC STORAGE COM 74460D109 4,767,464 -1,407,610 -22.80 1,416,413 -23.72 0.2409
2021-08-16 2021-06-30 13F PUBLIC STORAGE COM 74460D109 6,175,074 212,735 3.57 1,856,783 26.20 0.3091
2021-05-17 2021-03-31 13F PUBLIC STORAGE COM 74460D109 5,962,339 -90,415 -1.49 1,471,267 5.26 0.2591
2021-02-12 2020-12-31 13F PUBLIC STORAGE COM 74460D109 6,052,754 -94,451 -1.54 1,397,762 2.09 0.2574
2020-11-16 2020-09-30 13F PUBLIC STORAGE COM 74460D109 6,147,205 174,083 2.91 1,369,105 19.45 0.2834
2020-08-14 2020-06-30 13F PUBLIC STORAGE COM 74460D109 5,973,122 -60,140 -1.00 1,146,182 -4.35 0.2552
2020-05-14 2020-03-31 13F PUBLIC STORAGE COM 74460D109 6,033,262 -104,787 -1.71 1,198,266 -8.33 0.3171
2020-02-11 2019-12-31 13F PUBLIC STORAGE COM 74460D109 6,138,049 -347,595 -5.36 1,307,160 -17.83 0.2739
2019-11-13 2019-09-30 13F PUBLIC STORAGE COM 74460D109 6,485,644 -231,140 -3.44 1,590,733 -0.56 0.3587
2019-08-14 2019-06-30 13F PUBLIC STORAGE COM 74460D109 6,716,784 -293,277 -4.18 1,599,737 4.79 0.3542
2019-05-15 2019-03-31 13F PUBLIC STORAGE COM 74460D109 7,010,061 -778,436 -9.99 1,526,650 -3.16 0.3458
2019-02-14 2018-12-31 13F PUBLIC STORAGE COM 74460D109 7,788,497 -1,121,762 -12.59 1,576,470 -12.25 0.3946
2018-11-14 2018-09-30 13F PUBLIC STORAGE COM 74460D109 8,910,259 339,772 3.96 1,796,575 -7.60 0.3783
2018-08-14 2018-06-30 13F PUBLIC STORAGE COM 74460D109 8,570,487 235,350 2.82 1,944,299 16.41 0.4328
2018-05-15 2018-03-31 13F PUBLIC STORAGE COM 74460D109 8,335,137 909,974 12.26 1,670,278 7.63 0.3780
2018-02-13 2017-12-31 13F PUBLIC STORAGE COM 74460D109 7,425,163 35,440 0.48 1,551,860 -1.86 0.3429
2017-11-13 2017-09-30 13F PUBLIC STORAGE COM 74460D109 7,389,723 -303,656 -3.95 1,581,326 -1.43 0.3630
2017-08-14 2017-06-30 13F PUBLIC STORAGE COM 74460D109 7,693,379 1,082,361 16.37 1,604,300 10.85 0.3778
2017-05-11 2017-03-31 13F PUBLIC STORAGE COM 74460D109 6,611,018 -158,392 -2.34 1,447,218 -4.35 0.3486
2017-02-14 2016-12-31 13F PUBLIC STORAGE COM 74460D109 6,769,410 1,340,501 24.69 1,512,964 24.89 0.3795
2016-11-14 2016-09-30 13F PUBLIC STORAGE COM 74460D109 5,428,909 1,039,291 23.68 1,211,407 7.97 0.3034
2016-08-15 2016-06-30 13F PUBLIC STORAGE COM 74460D109 4,389,618 40,853 0.94 1,121,944 -6.47 0.2900
2016-05-13 2016-03-31 13F PUBLIC STORAGE COM 74460D109 4,348,765 -147,377 -3.28 1,199,520 7.71 0.3157
2016-02-12 2015-12-31 13F PUBLIC STORAGE COM 74460D109 4,496,142 860,285 23.66 1,113,694 44.74 0.2913
2015-11-16 2015-09-30 13F PUBLIC STORAGE COM 74460D109 3,635,857 -334,603 -8.43 769,456 5.11 0.2145
2015-08-14 2015-06-30 13F PUBLIC STORAGE COM 74460D109 3,970,460 -39,313 -0.98 732,033 -7.39 0.1889
2015-05-15 2015-03-31 13F PUBLIC STORAGE COM 74460D109 4,009,773 52,992 1.34 790,488 8.08 0.2032
2015-02-13 2014-12-31 13F PUBLIC STORAGE COM 74460D109 3,956,781 279,409 7.60 731,411 19.93 0.1933
2014-11-14 2014-09-30 13F PUBLIC STORAGE COM 74460D109 3,677,372 74,560 2.07 609,855 -1.21 0.1680
2014-08-14 2014-06-30 13F PUBLIC STORAGE COM 74460D109 3,602,812 -45,269 -1.24 617,342 0.44 0.1660
2014-05-15 2014-03-31 13F PUBLICSTORAGE COM 74460D109 3,648,081 855,776 30.65 614,666 46.25 0.1706
2014-02-14 2013-12-31 13F PUBLIC STORAGE COM 74460D109 2,792,305 455,633 19.50 420,298 12.03 0.1209
2013-11-14 2013-09-30 13F PUBLIC STORAGE COM 74460D109 2,336,672 268,191 12.97 375,152 18.28 0.1175
2013-08-14 2013-06-30 13F PUBLIC STORAGE COM 74460D109 2,068,481 2,068,481 317,160 0.1035
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.