National Storage Affiliates Trust
MX ˙ BMV ˙ US6378701063
SecurityMX:NSA / National Storage Affiliates Trust
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership717,520 shares
Latest Disclosed Value $ 27,079,205
Millennium Management Llc ownership in NSA / National Storage Affiliates Trust

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 717,520 shares of National Storage Affiliates Trust (MX:NSA) valued at $27,079,205 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 393,313 shares of National Storage Affiliates Trust. This represents a change in shares of 82.43% during the quarter.

Millennium Management Llc has a history of taking positions in derivatives of the underlying security (NSA) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:NSA / National Storage Affiliates Trust Historical Put/Call Ratio
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 NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 717,520 324,207 82.43 27,079 144.06 0.0113
2026-02-17 2025-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 393,313 -719,004 -64.64 11,095 -66.99 0.0047
2025-11-14 2025-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,112,317 -327,898 -22.77 33,614 -27.04 0.0143
2025-08-14 2025-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,440,215 1,423,409 8,469.65 46,072 6,859.52 0.0222
2025-05-15 2025-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 16,806 -8,690 -34.08 662 -31.47 0.0004
2025-02-14 2024-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 25,496 -90,226 -77.97 967 -82.68 0.0005
2024-11-14 2024-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 115,722 -46,107 -28.49 5,578 -16.39 0.0026
2024-08-14 2024-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 161,829 90,206 125.95 6,671 137.87 0.0031
2024-05-15 2024-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 71,623 14,194 24.72 2,805 17.77 0.0012
2024-02-14 2023-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 57,429 25,597 80.41 2,382 135.74 0.0010
2023-11-14 2023-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 31,832 -536,649 -94.40 1,010 -94.90 0.0005
2023-08-14 2023-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 568,481 507,717 835.56 19,800 679.83 0.0098
2023-05-15 2023-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 60,764 -93,980 -60.73 2,539 -54.57 0.0015
2023-02-14 2022-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 154,744 -870,976 -84.91 5,589 -86.90 0.0031
2022-11-14 2022-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,025,720 -189,096 -15.57 42,649 -29.88 0.0252
2022-08-15 2022-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,214,816 14,738 1.23 60,826 -19.24 0.0377
2022-05-16 2022-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,200,078 2,231 0.19 75,317 -9.14 0.0399
2022-02-14 2021-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,197,847 -167,818 -12.29 82,891 14.98 0.0421
2021-11-15 2021-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,365,665 -458,978 -25.15 72,093 -21.85 0.0432
2021-08-16 2021-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,824,643 360,112 24.59 92,254 57.76 0.0566
2021-05-17 2021-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,464,531 113,211 8.38 58,479 20.11 0.0418
2021-02-16 2020-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 1,351,320 806,329 147.95 48,688 173.11 0.0352
2020-11-16 2020-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 544,991 506,379 1,311.45 17,827 1,510.39 0.0220
2020-08-14 2020-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 38,612 -68,059 -63.80 1,107 -64.94 0.0015
2020-05-14 2020-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 106,671 13,567 14.57 3,157 0.86 0.0071
2020-02-14 2019-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 93,104 -861,666 -90.25 3,130 -90.18 0.0039
2019-11-14 2019-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 954,770 265,339 38.49 31,860 59.68 0.0504
2019-08-15 2019-06-30 13F/A-1 NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 689,431 230,294 50.16 19,952 52.42 0.0300
2019-05-14 2019-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 459,137 -46,297 -9.16 13,090 -2.12 0.0196
2019-02-15 2018-12-31 13F/A-1 NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 505,434 81,264 19.16 13,374 23.94 0.0209
2019-02-14 2018-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 505,434 13,374
2018-11-14 2018-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 424,170 152,474 56.12 10,791 28.86 0.0132
2018-08-14 2018-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 271,696 44,025 19.34 8,374 46.65 0.0109
2018-05-15 2018-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 227,671 -432,912 -65.53 5,710 -68.29 0.0076
2018-02-14 2017-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 660,583 660,583 18,007 0.0249
2017-08-14 2017-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 0 -89,950 -100.00 0 -100.00
2017-05-15 2017-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 89,950 -28,338 -23.96 2,150 -17.66 0.0039
2017-02-14 2016-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 118,288 85,410 259.78 2,611 279.51 0.0055
2016-11-14 2016-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 32,878 32,878 0.00 688 0.0012
2016-08-15 2016-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 0 -158,556 -100.00 0 -100.00
2016-05-16 2016-03-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 158,556 158,556 0.00 3,361 0.0084
2016-02-16 2015-12-31 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 0 -134,225 -100.00 0 -100.00
2015-11-16 2015-09-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 134,225 -33,388 -19.92 1,819 -12.46 0.0035
2015-08-14 2015-06-30 13F NATIONAL STORAGE AFFILIATES COM SHS BEN IN 637870106 167,613 167,613 2,078 0.0039
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2019-11-14 2019-09-30 13F UNITEDHEALTH GROUP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-14 2019-06-30 13F UNITEDHEALTH GROUP COM Put 125,500 30,623 n/a n/a n/a
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.