Siffermann William A
Vice President
Siffermann William A has filed 5 SEC Form 4 filings (5 transaction rows) across 5 companies, including NMZ, NBB, NAD, with disclosures dating back to 2026. 5 of those filings fall inside the rolling window. Most recent filing: Mar 6, 2026.
On the most recent filing, Siffermann William A is listed as Vice President at NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND. Inside the rolling window, Siffermann William A reported 5 open-market purchases totaling $5K in NMZ, NBB, NAD and 2 more and no open-market sales. The largest disclosed transaction in the window is a purchase of 75 NBB shares on Mar 4, 2026, worth $1K.
Companies traded
Other insiders at NMZ
Insider Buying
$5K
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
5
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Siffermann William A made?
Siffermann William A has filed 5 SEC Form 4 filings (5 transaction rows) across 5 companies, including NMZ, NBB, NAD since 2026.
Which companies does Siffermann William A trade?
Siffermann William A has filed SEC Form 4 disclosures for 5 companies, including NMZ, NBB, NAD.
When was Siffermann William A's most recent SEC Form 4 filing?
Siffermann William A's most recent SEC Form 4 filing on Tracefour is dated Mar 6, 2026.
What is Siffermann William A's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Siffermann William A is listed as Vice President.
What is Siffermann William A's total buy and sell value in the current window?
Inside the rolling retention window, Siffermann William A bought $5K and sold $0 based on SEC Form 4 filings.
What was Siffermann William A's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 75 NBB shares on 2026-03-04, worth $1K, per SEC Form 4 filings.