National Storage Affiliates Trust
US ˙ NYSE ˙ US6378701063

SecurityNSA / National Storage Affiliates Trust
InstitutionNorthern Trust Corp
Latest Disclosed Ownership744,159 shares
Latest Disclosed Value $ 28,084,560
Northern Trust Corp reports 3.37% increase in ownership of NSA / National Storage Affiliates Trust

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 744,159 shares of National Storage Affiliates Trust (US:NSA) valued at $28,084,561 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 719,920 shares of National Storage Affiliates Trust. This represents a change in shares of 3.37% during the quarter. The current value of the position is $31,954,187 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)
2026-05-14 2026-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 744,159 24,239 3.37 28,085 38.29 0.0008
2026-02-17 2025-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 719,920 -33,267 -4.42 20,309 -10.78 0.0005
2025-11-14 2025-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 753,187 -20,673 -2.67 22,761 -8.05 0.0029
2025-08-13 2025-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 773,860 -40,139 -4.93 24,756 -22.81 0.0034
2025-05-13 2025-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 813,999 -264,878 -24.55 32,072 -21.59 0.0048
2025-02-14 2024-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,078,877 253,176 30.66 40,900 2.77 0.0058
2024-11-13 2024-09-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 825,701 -47,024 -5.39 39,799 10.63 0.0065
2024-08-14 2024-06-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 872,725 346,399 65.81 35,974 74.54 0.0061
2024-05-14 2024-03-31 13F NATIONAL STORAGE AFFILIATES COM 637870106 526,326 -91,557 -14.82 20,611 -19.56 0.0036
2024-02-13 2023-12-31 13F NATIONAL STORAGE AFFILIATES COM 637870106 617,883 -71,146 -10.33 25,624 17.17 0.0046
2023-11-13 2023-09-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 689,029 -7,794 -1.12 21,870 -9.89 0.0042
2023-08-11 2023-06-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 696,823 -75,737 -9.80 24,270 -24.81 0.0047
2023-05-15 2023-03-31 13F NATIONAL STORAGE AFFILIATES COM 637870106 772,560 -9,710 -1.24 32,278 14.23 0.0064
2023-02-13 2022-12-31 13F NATIONAL STORAGE AFFILIATES COM 637870106 782,270 1,830 0.23 28,256 -12.93 0.0059
2022-11-14 2022-09-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 780,440 -13,114 -1.65 32,451 -18.33 0.0074
2022-08-12 2022-06-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 793,554 -434,310 -35.37 39,733 -48.44 0.0085
2022-05-13 2022-03-31 13F NATIONAL STORAGE AFFILIATES COM 637870106 1,227,864 -49,234 -3.86 77,060 -12.80 0.0136
2022-02-08 2021-12-31 13F NATIONAL STORAGE AFFILIATES COM 637870106 1,277,098 -40,855 -3.10 88,375 27.02 0.0145
2021-11-15 2021-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,317,953 66,191 5.29 69,575 9.93 0.0123
2021-08-13 2021-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,251,762 148,031 13.41 63,289 43.60 0.0111
2021-05-12 2021-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,103,731 -115,931 -9.51 44,073 0.29 0.0082
2021-02-11 2020-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,219,662 147,438 13.75 43,946 25.30 0.0086
2020-11-16 2020-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,072,224 -23,162 -2.11 35,073 11.72 0.0077
2020-08-14 2020-06-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 1,095,386 75,419 7.39 31,394 3.98 0.0074
2020-05-14 2020-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,019,967 24,802 2.49 30,191 -9.76 0.0087
2020-02-14 2019-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 995,165 3,532 0.36 33,457 1.11 0.0075
2019-11-13 2019-09-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 991,633 84,304 9.29 33,090 26.02 0.0079
2019-08-13 2019-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 907,329 24,313 2.75 26,257 4.31 0.0062
2019-05-13 2019-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 883,016 -10,288 -1.15 25,173 6.50 0.0062
2019-02-12 2018-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 893,304 -71,216 -7.38 23,636 -3.68 0.0066
2018-11-14 2018-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 964,520 91,167 10.44 24,538 -8.83 0.0060
2018-09-18 2018-06-30 13F/A-1 NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 873,353 7,924 0.92 26,916 24.01 0.0068
2018-08-14 2018-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 876,569 11,140 27,015
2018-05-09 2018-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 865,429 125,157 16.91 21,705 7.56 0.0056
2018-02-14 2017-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 740,272 5,622 0.77 20,180 13.33 0.0051
2017-11-13 2017-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 734,650 -8,291 -1.12 17,807 3.71 0.0046
2017-08-11 2017-06-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 742,941 82,530 12.50 17,170 8.78 0.0048
2017-05-12 2017-03-31 13F NATIONAL STORAGE AFFILIATES COM 637870106 660,411 262,994 66.18 15,784 79.96 0.0046
2017-02-13 2016-12-31 13F NATIONAL STORAGE AFFILIATES COM 637870106 397,417 -151,437 -27.59 8,771 -23.68 0.0027
2016-11-09 2016-09-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 548,854 102,544 22.98 11,493 23.69 0.0036
2016-08-12 2016-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 446,310 -6,972 -1.54 9,292 15.40 0.0030
2016-08-19 2016-03-31 13F/A-1 NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 453,282 -59,961 -11.68 8,052 -8.42 0.0027
2016-05-13 2016-03-31 13F National Storage Affili COMM 637870106 453,282 9,610
2016-02-12 2015-12-31 13F National Storage Affili COMM 637870106 513,243 13,491 2.70 8,792 29.83 0.0029
2015-11-12 2015-09-30 13F NATIONAL STORAGE AFFILIATES COM 637870106 499,752 499,752 6,772 0.0023
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.