MUB in the 13F filings

iShares TR · CUSIP 464288414

Quarter

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024 Q4 2023 Q3 2023

Quarter end: 31 Dec 2025; the date the book describes
Filed: 27 Oct 2026; latest of these filings; the earliest 12 Feb 2026
Managers listing it: 12; at least, of 95 tracked, among listed positions
Comparable managers: 92; filed both Q3 2025 and Q4 2025; 2 listed it in both
Shares listed: 23,857,834; combined, among listed positions
Reported value: $2.6bn; combined, at the quarter end

Among the 92 comparable managers: 5 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -4,585,057.

Managers listing MUB in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 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

12 of 12 holders

				Action		Filing
Fidelity (FMR LLC)	22,297,884	$2.4bn	0.12%	Added	+132,458	17 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC	551,732	$59m	under 0.1%	Trimmed	-346,697	12 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP	469,688	$50m	under 0.1%	Trimmed	-2,147	17 Feb 2026 (the filing on sec.gov)
Soros Fund Management LLC	241,400	$26m	0.30%	Held	0	13 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC	128,850	$14m	under 0.1%	Trimmed	-156,250	12 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.	74,906	$8.0m	under 0.1%	Trimmed	-171,094	17 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc	38,200	$4.1m	under 0.1%	Added	+31,700	17 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP	13,917	$1.5m	under 0.1%	New	new	17 Feb 2026 (the filing on sec.gov)
Millennium Management LLC	13,163	$1.4m	under 0.1%	Trimmed	-9,262	17 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC	12,795	$1.4m	under 0.1%	Added	+1,044	27 Oct 2026 (the filing on sec.gov)
Susquehanna International Group LLP	11,478	$1.2m	under 0.1%	Trimmed	-278,523	17 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC	3,821	$409k	under 0.1%	Added	+595	17 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Fidelity (FMR LLC)existing position · 22,297,884 shares now+132,458
T. Rowe Price Associates Incexisting position · 38,200 shares now+31,700
Point72 Asset Management LPnew position · 13,917 shares now+13,917
Neuberger Berman Group LLCexisting position · 12,795 shares now+1,044
AQR Capital Management LLCexisting position · 3,821 shares now+595

Reductions

Jane Street Group LLCexisting position · 551,732 shares now-346,697
Susquehanna International Group LLPexisting position · 11,478 shares now-278,523
D. E. Shaw & Co.existing position · 74,906 shares now-171,094
Renaissance Technologies LLCexisting position · 128,850 shares now-156,250
Millennium Management LLCexisting position · 13,163 shares now-9,262

New positions and exits

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

New (1)

Point72 Asset Management LP$1.5m

Exited (2)

Wellington Management Group LLPwas $387m
Citadel Advisors LLCwas $18m

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.

4 in Q3 2024 to 3 in Q2 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.

MUB by quarter
Quarter	Holders	Reported value	Buyers	Sellers
Q4 2014	1	$12m	n.a.	n.a.
Q1 2016	1	$6.9m	n.a.	n.a.
Q2 2016	2	$67m	n.a.	n.a.
Q4 2016	1	$12m	n.a.	n.a.
Q1 2017	2	$27m	n.a.	n.a.
Q2 2017	2	$30m	n.a.	n.a.
Q4 2017	1	$4.9m	n.a.	n.a.
Q2 2018	2	$44m	n.a.	n.a.
Q4 2018	1	$3.6m	n.a.	n.a.
Q1 2019	2	$86m	n.a.	n.a.
Q2 2019	1	$4.2m	n.a.	n.a.
Q3 2019	1	$31m	n.a.	n.a.
Q1 2020	1	$27m	n.a.	n.a.
Q2 2020	2	$258m	n.a.	n.a.
Q3 2020	2	$133m	n.a.	n.a.
Q4 2020	2	$195m	n.a.	n.a.
Q1 2021	2	$224m	n.a.	n.a.
Q2 2021	2	$434m	n.a.	n.a.
Q3 2021	1	$28m	n.a.	n.a.
Q4 2021	2	$249m	n.a.	n.a.
Q1 2022	3	$1.1bn	n.a.	n.a.
Q2 2022	3	$2.8bn	n.a.	n.a.
Q3 2022	2	$2.8bn	n.a.	n.a.
Q4 2022	2	$3.1bn	n.a.	n.a.
Q1 2023	2	$2.6bn	n.a.	n.a.
Q2 2023	2	$2.6bn	n.a.	n.a.
Q3 2023	2	$2.5bn	n.a.	n.a.
Q4 2023	6	$3.0bn	4	1
Q1 2024	4	$2.6bn	1	2
Q2 2024	3	$1.8bn	1	2
Q3 2024	4	$1.6bn	2	1
Q4 2024	4	$1.9bn	2	1
Q1 2025	3	$1.7bn	1	1
Q2 2025	4	$2.0bn	3	0
Q3 2025	3	$2.8bn	2	1
Q4 2025	2	$2.4bn	5	8
Q1 2026	2	$2.4bn	4	7
Q2 2026	3	$2.6bn	6	5

Compare with…

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

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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 MUB, latest filings →Back to the 13F Explorer →

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