Summary
Updated Aug 31, 2026
Lisa R. Bacus is Director of TERADATA CORP /DE/ (TDC). 4 SEC Form 4 filings on record, most recently on 18 August 2026. Most recent open-market trade: bought $51K of SIGI on 3 February 2026. Lifetime open-market purchases: $51K.
Recent Transactions
4Every recent SEC Form 4 transaction Lisa R. Bacus has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Lisa R. Bacus go back to 2026: 4 primary Form 4 filings, an average of 4.0 per year. The typical open-market purchase is $51K (1 buy totaling $51K). The largest single buy on record is $51K of SIGI in 2026. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Lisa R. Bacus 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.
- Lynrock Lake LP - $2.50M of TDC open-market activity in the last 12 months
- Stephen McMillan - $2.15M of TDC open-market activity in the last 12 months
- Richard J. Petley - $1.66M of TDC open-market activity in the last 12 months
- Michael P. Gianoni - $749K of TDC open-market activity in the last 12 months
- Sumeet Arora - $577K of TDC open-market activity in the last 12 months
- Todd McElhatton - $502K of TDC 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 Lisa R. Bacus?
Lisa R. Bacus is a corporate insider, tracked as Director of TERADATA CORP /DE/ (TDC). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Lisa R. Bacus submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Lisa R. Bacus been buying or selling stock?
Recorded transactions: 1 open-market purchase ($51K) and 0 open-market sales across all tracked filings.
Where can I see all of Lisa R. Bacus'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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