Summary
Updated Aug 30, 2026
Mark S. Schwartz is V.P., C.A.O. and Treasurer of LOEWS CORP (L). 2 SEC Form 4 filings on record, most recently on 18 February 2026. Most recent open-market trade: sold $346K of L on 18 February 2026. Lifetime open-market sales: $346K.
Recent Transactions
5Every recent SEC Form 4 transaction Mark S. Schwartz 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 Mark S. Schwartz 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.
- Andrew H. Tisch - $29.28M of L open-market activity in the last 12 months
- Dino Robusto - $1.05M of L open-market activity in the last 12 months
- Ann E. Berman - $505K of L open-market activity in the last 12 months
- Marc A. Alpert - $384K of L open-market activity in the last 12 months
- Paul J. Fribourg - $293K of L open-market activity in the last 12 months
- Charles M. Diker - $293K of L 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 Mark S. Schwartz?
Mark S. Schwartz is a corporate insider, tracked as V.P., C.A.O. and Treasurer of LOEWS CORP (L). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Mark S. Schwartz last file a Form 4?
The most recent primary Form 4 on record is dated 18 February 2026, one of 2 filings going back to 2026.
Has Mark S. Schwartz been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($346K) across all tracked filings.
Where can I see all of Mark S. Schwartz'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.
Learn More
Follow Mark S. Schwartz and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial
