Summary
Updated Aug 31, 2026
William A. Siffermann is Vice President of NUVEEN REAL ESTATE INCOME FUND (JRS). 6 SEC Form 4 filings on record going back to 2025, most recently on 6 March 2026. Most recent open-market trade: bought $811 of JRS on 6 March 2026. Lifetime open-market purchases: $5K. Historical track record: 1/5 stars across 5 tracked purchases.
Recent Transactions
5Every recent SEC Form 4 transaction William A. Siffermann has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies William A. Siffermann files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- BANK OF AMERICA CORP - $370K of NMZ open-market activity in the last 12 months
- Albin F. Moschner - $30K of NMZ open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is William A. Siffermann?
William A. Siffermann is a corporate insider, tracked as Vice President of NUVEEN REAL ESTATE INCOME FUND (JRS). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did William A. Siffermann last file a Form 4?
The most recent primary Form 4 on record is dated 6 March 2026, one of 6 filings going back to 2025.
Has William A. Siffermann been buying or selling stock?
Recorded transactions: 5 open-market purchases ($5K) and 0 open-market sales across all tracked filings.
How accurate is William A. Siffermann's historical track record?
Across 5 tracked purchases, William A. Siffermann averaged -4.5% avg 30-day return with a 0% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
Where can I see all of William A. Siffermann's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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