iShares Trust - iShares National Muni Bond ETF
US ˙ ARCA ˙ US4642884146

SecurityMUB / iShares Trust - iShares National Muni Bond ETF
InstitutionCitigroup Inc
Latest Disclosed Ownership1,298,929 shares
Latest Disclosed Value $ 137,881,331
Citigroup Inc ownership in MUB / iShares Trust - iShares National Muni Bond ETF

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 1,298,929 shares of iShares Trust - iShares National Muni Bond ETF (US:MUB) valued at $137,881,313 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,173,907 shares of iShares Trust - iShares National Muni Bond ETF. This represents a change in shares of 10.65% during the quarter. The current value of the position is $139,232,200 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (MUB) 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.

MUB / iShares Trust - iShares National Muni Bond ETF 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)
2026-05-11 2026-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 1,298,929 125,022 10.65 137,881 9.66 0.0588
2026-02-13 2025-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 1,173,907 -101,537 -7.96 125,737 -7.43 0.0555
2025-11-10 2025-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 1,275,444 16,723 1.33 135,822 3.28 0.0606
2025-08-11 2025-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 1,258,721 100,708 8.70 131,511 7.71 0.0646
2025-05-12 2025-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 1,158,013 56,337 5.11 122,101 4.02 0.0624
2025-02-12 2024-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 1,101,676 238,296 27.60 117,384 25.16 0.0696
2024-11-12 2024-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 863,380 -28,718 -3.22 93,789 -1.33 0.0543
2024-08-12 2024-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 892,098 21,571 2.48 95,053 1.48 0.0609
2024-05-10 2024-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 870,527 -98,860 -10.20 93,669 -10.87 0.0615
2024-02-09 2023-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 969,387 104,711 12.11 105,091 18.53 0.0740
2023-12-06 2023-09-30 13F/A-1 ISHARES TR NATIONAL MUN ETF 464288414 864,676 -5,556 -0.64 88,664 -4.54 0.0663
2023-11-09 2023-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 864,676 -5,556 88,664 0.0265
2023-08-10 2023-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 870,232 24,722 2.92 92,880 1.96 0.0609
2023-05-11 2023-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 845,510 16,487 1.99 91,095 4.13 0.0639
2023-02-09 2022-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 829,023 -237,582 -22.27 87,478 -20.05 0.0697
2022-11-10 2022-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 1,066,605 531,175 99.21 109,412 92.13 0.0783
2022-08-10 2022-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 535,430 -132,842 -19.88 56,948 -22.28 0.0424
2022-05-12 2022-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 668,272 524,238 363.97 73,269 337.48 0.0445
2022-02-10 2021-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 144,034 25,912 21.94 16,748 22.04 0.0090
2021-11-10 2021-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 118,122 -1,760 -1.47 13,723 -2.33 0.0081
2021-08-10 2021-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 119,882 31,270 35.29 14,051 36.63 0.0085
2021-05-13 2021-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 88,612 41,246 87.08 10,284 85.26 0.0067
2021-02-11 2020-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 47,366 3,795 8.71 5,551 9.90 0.0033
2020-11-12 2020-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 43,571 14,257 48.64 5,051 49.31 0.0033
2020-08-12 2020-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 29,314 -1,747 -5.62 3,383 -3.62 0.0026
2020-05-12 2020-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 31,061 16,539 113.89 3,510 112.21 0.0032
2020-02-12 2019-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 14,522 1,556 12.00 1,654 11.83 0.0012
2019-11-08 2019-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 12,966 -2,668 -17.07 1,479 -16.35 0.0012
2019-08-12 2019-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 15,634 2,302 17.27 1,768 19.30 0.0014
2019-05-13 2019-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 13,332 -4,536 -25.39 1,482 -23.92 0.0014
2019-02-12 2018-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 17,868 757 4.42 1,948 5.47 0.0020
2018-11-13 2018-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 17,111 -251 -1.45 1,847 -2.43 0.0016
2018-08-10 2018-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 17,362 1,282 7.97 1,893 8.11 0.0017
2018-05-11 2018-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 16,080 -6,672 -29.32 1,751 -30.52 0.0014
2018-02-12 2017-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 22,752 10,504 85.76 2,520 85.57 0.0020
2017-11-13 2017-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 12,248 -7,583 -38.24 1,358 -37.82 0.0011
2017-08-11 2017-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 19,831 -7,113 -26.40 2,184 -25.61 0.0020
2017-05-12 2017-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 26,944 3,168 13.32 2,936 14.15 0.0026
2017-02-10 2016-12-31 13F ISHARES TR NATIONAL MUN ETF 464288414 23,776 20,099 546.61 2,572 519.76 0.0023
2016-11-10 2016-09-30 13F ISHARES TR NATIONAL MUN ETF 464288414 3,677 400 12.21 415 11.26 0.0004
2016-08-12 2016-06-30 13F ISHARES TR NATIONAL MUN ETF 464288414 3,277 733 28.81 373 31.34 0.0004
2016-05-13 2016-03-31 13F ISHARES TR NATIONAL MUN ETF 464288414 2,544 -2,589 -50.44 284 -50.00 0.0003
2016-02-12 2015-12-31 13F ISHARES TR NAT AMT FREE BD 464288414 5,133 -10,224 -66.58 568 -66.23 0.0006
2015-11-13 2015-09-30 13F ISHARES TR NAT AMT FREE BD 464288414 15,357 -76,129 -83.21 1,682 -83.01 0.0016
2015-08-13 2015-06-30 13F ISHARES NAT AMT FREE BD 464288414 91,486 -10,822 -10.58 9,900 -12.51 0.0088
2015-05-14 2015-03-31 13F ISHARES NAT AMT FREE BD 464288414 102,308 29,781 41.06 11,315 41.38 0.0109
2015-02-17 2014-12-31 13F ISHARES NAT AMT FREE BD 464288414 72,527 -23,123 -24.17 8,003 -23.71 0.0071
2014-11-14 2014-09-30 13F ISHARES NAT AMT FREE BD 464288414 95,650 -137,026 -58.89 10,490 -58.50 0.0092
2014-08-14 2014-06-30 13F ISHARES NAT AMT FREE BD 464288414 232,676 22,685 10.80 25,280 12.45 0.0242
2014-05-15 2014-03-31 13F ISHARES NAT AMT FREE BD 464288414 209,991 -8,093 -3.71 22,481 -0.63 0.0230
2014-02-14 2013-12-31 13F ISHARES NAT AMT FREE BD 464288414 218,084 152,998 235.07 22,624 232.66 0.0205
2013-11-14 2013-09-30 13F ISHARES NAT AMT FREE BD 464288414 65,086 -999,979 -93.89 6,801 -93.92 0.0064
2013-08-14 2013-06-30 13F ISHARES TR S&P NTL AMTFREE 464288414 1,065,065 1,065,065 111,874 0.1102
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
(%)
2023-02-09 2022-12-31 13F ISHARES TR NATIONAL MUN ETF Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-10 2022-09-30 13F ISHARES TR NATIONAL MUN ETF Put 200,000 20,516 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.