Career & Filing History
Every role Mario J. Gabelli has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
Mario J. Gabelli is a beneficial owner of more than 10% of LGL GROUP INC (LGL), as disclosed in SEC ownership filings. Gabelli's filing history also covers GABELLI EQUITY TRUST INC (GAB) and GAMCO Natural Resources, Gold & Income Trust (GNT). Gabelli has reported 56 insider filings with the SEC since 2024. The most recent filing was in July 2026.
Every role Mario J. Gabelli has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
LGL GROUP INC (LGL)1 filingLatest filing:
Mario J. Gabelli is 10% Owner of LGL GROUP INC (LGL). 54 SEC Form 4 filings on record going back to 2024, most recently on 20 July 2026. Most recent open-market trade: bought $101K of GGT on 25 February 2026. Lifetime open-market purchases: $75.99M. Lifetime open-market sales: $987K. Historical track record: 3/5 stars across 31 tracked purchases.
Every recent SEC Form 4 transaction Mario J. Gabelli has reported, most recent first.
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★★☆☆ (3/5) |
| Total purchases tracked | 31 |
| Purchases with forward-return data | 31 |
| 30-day win rate | 48% |
| 90-day win rate | 35% |
| Avg 5-day return | -0.14% |
| Avg 30-day return | -0.36% |
| Avg 90-day return | -0.27% |
| Best 30-day return |
InsiderAlpha's records for Mario J. Gabelli go back to 2024: 54 primary Form 4 filings, an average of 18.0 per year. The typical open-market purchase is $2.45M (31 buys totaling $75.99M). The largest single buy on record is $31.32M of GDV in 2024. Sales side: 14 recorded sales totaling $987K, so the filing history runs buy-heavy by dollar value. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Insiders who reported open-market trades in the last 12 months at the companies Mario J. Gabelli 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.
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Mario J. Gabelli is a corporate insider, tracked as 10% Owner of LGL GROUP INC (LGL). InsiderAlpha holds 54 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
1 primary Form 4 filing in the last 90 days, covering 1 company.
Recorded transactions: 31 open-market purchases ($75.99M) and 14 open-market sales ($987K) across all tracked filings.
Across 31 tracked purchases, Mario J. Gabelli averaged -0.4% avg 30-day return with a 48% 30-day win rate. InsiderAlpha rates the track record at 3/5 stars.
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.
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
$GAB GABELLI EQUITY TRUST INC84.2K shares @ $5.00$421K
$GNT GAMCO Natural Resources, Gold & Income Trust250.0K shares @ $10.00$2.50M
$GNT GAMCO Natural Resources, Gold & Income Trust190.0K shares @ $10.00$1.90M
$GCV GABELLI CONVERTIBLE & INCOME SECURITIES FUND INC50.0K shares @ $4.29$214K
$GGZ Gabelli Global Small & Mid Cap Value Trust88.2K shares @ $10.00$882K
$GGZ Gabelli Global Small & Mid Cap Value Trust70.6K shares @ $10.00$706K
$GGZ Gabelli Global Small & Mid Cap Value Trust473.6K shares @ $10.00$4.74M
| +14.88% |