SMA in the 13F filings

Smartstop Self Storag REIT I · CUSIP 83192D402

Sector · Real estate Theme · Real estate investment trusts

Quarter

Q1 2026 Q4 2025 Q3 2025 Q2 2025

Quarter end: 31 Mar 2026; the date the book describes
Filed: 18 May 2026; latest of these filings; the earliest 12 May 2026
Managers listing it: 17; at least, of 95 tracked, among listed positions
Comparable managers: 91; filed both Q4 2025 and Q1 2026; 3 listed it in both
Shares listed: 8,493,192; combined, among listed positions
Reported value: $257m; combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 12 buyers (opened or added shares) and 11 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -1,725,321.

Managers listing SMA in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

ActionShare of book at least

17 of 17 holders

				Action		Filing
T. Rowe Price Associates Inc	5,969,543	$181m	under 0.1%	Added	+55,864	15 May 2026 (the filing on sec.gov)
MFS Investment Management	981,442	$30m	under 0.1%	Added	+187,153	14 May 2026 (the filing on sec.gov)
Millennium Management LLC	591,604	$18m	under 0.1%	Added	+307,762	15 May 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP	252,236	$7.6m	under 0.1%	Added	+26,485	13 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd	246,012	$7.4m	under 0.1%	Trimmed	-166,106	18 May 2026 (the filing on sec.gov)
Verition Fund Management LLC	99,515	$3.0m	under 0.1%	New	new	15 May 2026 (the filing on sec.gov)
Invesco Ltd	75,782	$2.3m	under 0.1%	Added	+52,842	12 May 2026 (the filing on sec.gov)
Man Group PLC	75,746	$2.3m	under 0.1%	Trimmed	-11,308	15 May 2026 (the filing on sec.gov)
AllianceBernstein LP	65,747	$2.0m	under 0.1%	Added	+33,031	15 May 2026 (the filing on sec.gov)
Citadel Advisors LLC	26,826	$812k	under 0.1%	New	new	15 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC	24,985	$757k	under 0.1%	New	new	15 May 2026 (the filing on sec.gov)
Maverick Capital Ltd	22,583	$684k	under 0.1%	Trimmed	-136,980	15 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP	21,518	$652k	under 0.1%	New	new	15 May 2026 (the filing on sec.gov)
AQR Capital Management LLC	19,637	$595k	under 0.1%	Added	+7,087	15 May 2026 (the filing on sec.gov)
Two Sigma Investments LP	10,900	$330k	under 0.1%	Trimmed	-7,028	15 May 2026 (the filing on sec.gov)
Quantbot Technologies LP	4,802	$145k	under 0.1%	Trimmed	-9,463	13 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)	4,314	$131k	under 0.1%	Added	+2,804	15 May 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Millennium Management LLCexisting position · 591,604 shares now+307,762
MFS Investment Managementexisting position · 981,442 shares now+187,153
Verition Fund Management LLCnew position · 99,515 shares now+99,515
T. Rowe Price Associates Incexisting position · 5,969,543 shares now+55,864
Invesco Ltdexisting position · 75,782 shares now+52,842

Reductions

Janus Henderson Group Ltdexisting position · 246,012 shares now-166,106
Maverick Capital Ltdexisting position · 22,583 shares now-136,980
Man Group PLCexisting position · 75,746 shares now-11,308
Quantbot Technologies LPexisting position · 4,802 shares now-9,463
Two Sigma Investments LPexisting position · 10,900 shares now-7,028

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Verition Fund Management LLC$3.0m
Citadel Advisors LLC$812k
Balyasny Asset Management LLC$757k
Susquehanna International Group LLP$652k

Exited (6)

Wellington Management Group LLPwas $44m
Schonfeld Strategic Advisors LLCwas $16m
Freestone Grove Partners LPwas $4.6m
Walleye Capital LLCwas $3.2m
Squarepoint Ops LLCwas $1.7m
Voloridge Investment Management LLCwas $355k

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.

7 in Q2 2025 to 3 in Q1 2026

Tracked managers listing it, at least.

the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

SMA and WELL →SMA and EQIX →SMA and PLD →Choose a stock to compare with SMA →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own SMA, latest filings →Back to the 13F Explorer →

Provided for information purposes only, not financial advice. The holdings shown here and anything drawn from them are illustrative, produced from assumptions you control, and must not be relied on for any investment, financial or business decision. Read the full notice

Not advice, and not a recommendation. Everything L3VLUP publishes is provided for information purposes only. Nothing here is financial, investment, legal, tax or accounting advice, a personal recommendation, or an offer or solicitation to buy or sell any security or financial instrument. It takes no account of anyone’s objectives, financial situation or needs.

Not a regulated adviser. L3VLUP does not provide regulated financial services. Speak to a suitably qualified and regulated professional before acting on anything you read here.

Illustrative figures. Default values are plausible starting points chosen so a model has somewhere to begin. They are not data, not a view on any company, and not calibrated to anything. Outputs move with whatever you type in.

Third-party data. Where live figures appear they come from third parties, including public filings and market feeds. They may be delayed, incomplete, restated, mis-tagged at source or simply wrong, and their providers do not endorse or verify this page. Every figure links to where it came from. Check it there before relying on it. Past performance is not a guide to future performance.

Company names and logos. Names, tickers and logos are the trademarks of their owners and appear only to identify the company whose public figures are being used. L3VLUP is not affiliated with, sponsored by or endorsed by any company shown, none of them took part in preparing the exercise, and nothing here is a statement by or about any of them. See third-party names and marks.

No warranty, and limited liability. This page is provided “as is” without warranty of any kind. To the fullest extent permitted by law, L3VLUP accepts no liability for any loss or damage arising from use of, or reliance on, anything on it. Nothing in this notice limits any liability that cannot lawfully be limited.

Full terms: Information Purposes and No Advice · Terms

Quarter	Holders	Reported value	Buyers	Sellers
Q2 2025	7	$239m	7	0
Q3 2025	4	$242m	3	2
Q4 2025	5	$215m	10	13
Q1 2026	3	$189m	12	11