Summary
Updated Aug 30, 2026
Karl Sprules is Chief Operating Officer of ALLIANCEBERNSTEIN HOLDING L.P. (AB). 4 SEC Form 4 filings on record going back to 2024, most recently on 3 December 2025.
Recent Transactions
6Every recent SEC Form 4 transaction Karl Sprules 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 Karl Sprules 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.
- Seth P. Bernstein - $2.25M of AB open-market activity in the last 12 months
- Charles G.T. Stonehill - $186K of AB 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 Karl Sprules?
Karl Sprules is a corporate insider, tracked as Chief Operating Officer of ALLIANCEBERNSTEIN HOLDING L.P. (AB). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Karl Sprules last file a Form 4?
The most recent primary Form 4 on record is dated 3 December 2025, one of 4 filings going back to 2024.
Where can I see all of Karl Sprules'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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