NMZ Nuveen Municipal High Income O

AMX
$9.46

Nuveen Municipal High Income O (NMZ) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

Insider signal In line Selling ran in line with NMZ's own trailing one-year pace, with 0% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 1 buyer in the last 90 days 2 sellers in the last 90 days
Insiders buying
2
13 transactions
Insiders selling
2
14 transactions
Purchases
$196.7K
18,562 shares
Sales
$225.6K
21,374 shares
Net activity
-$28.9K
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $225.6K 14 transactions · 21,374 shares

Largest single sale: $113.9K.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: August 4, 2026 .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
3 fills Sell 3 $10.26 $31 2 −60% of holding
3 fills Buy 3 $10.19 $31 3
4 fills Buy 36 $10.21 $368 36
3 fills Sell 31 $10.26 $318 29 −51.7% of holding
Sell 5 $10.33 $52 None left
Buy 9 $10.24 $92 9
Sell 9 $10.18 $92 None left
MOSCHNER ALBIN F 2 fills Other Sell 2,912 $10.36 $30.2K 3,788 −43.5% of holding
Siffermann William A Vice President Buy 100 $10.48 $1.0K 914
Sell 1,000 $10.54 $10.5K None left
Buy 1,000 $10.32 $10.3K 1,000
Sell 6,440 $10.63 $68.5K None left
Buy 6,440 $10.56 $68.0K 6,440
Buy 190 $10.62 $2.0K 190
Sell 190 $10.62 $2.0K None left
Buy 10,784 $10.64 $114.8K 10,784
Sell 10,784 $10.56 $113.9K None left

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.