Summary
Latest filing:
Spencer Davidson files SEC Form 4 reports at GENERAL AMERICAN INVESTORS CO INC (GAM). 13 SEC Form 4 filings on record, most recently on 25 November 2025. Most recent open-market trade: bought $30K of GAM on 25 November 2025. Lifetime open-market purchases: $1.96M. Lifetime open-market sales: $710K. Historical track record: 1/5 stars across 17 tracked purchases.
Recent Transactions
19Every recent SEC Form 4 transaction Spencer Davidson has reported, most recent first.
Track Record
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 | ★☆☆☆☆ (1/5) |
| Total purchases tracked | 17 |
| Purchases with forward-return data | 17 |
| 30-day win rate | 18% |
| 90-day win rate | 18% |
| Avg 5-day return | -1.34% |
| Avg 30-day return | -5.91% |
| Avg 90-day return | -1.90% |
| Best 30-day return | +2.63% |
Trading Pattern
InsiderAlpha's records for Spencer Davidson go back to 2025: 13 primary Form 4 filings, an average of 6.5 per year. The typical open-market purchase is $115K (17 buys totaling $1.96M). The largest single buy on record is $540K of GAM in 2025. Sales side: 2 recorded sales totaling $710K, 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.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Spencer Davidson 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.
- Eugene S. Stark - $369K of GAM open-market activity in the last 12 months
- Jeffrey W. Priest - $334K of GAM open-market activity in the last 12 months
- Anang K. Majmudar - $107K of GAM 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 Spencer Davidson?
Spencer Davidson is a corporate insider of GENERAL AMERICAN INVESTORS CO INC (GAM). InsiderAlpha holds 13 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Spencer Davidson last file a Form 4?
The most recent primary Form 4 on record is dated 25 November 2025, one of 13 filings going back to 2025.
Has Spencer Davidson been buying or selling stock?
Recorded transactions: 17 open-market purchases ($1.96M) and 2 open-market sales ($710K) across all tracked filings.
How accurate is Spencer Davidson's historical track record?
Across 17 tracked purchases, Spencer Davidson averaged -5.9% avg 30-day return with a 18% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
Where can I see all of Spencer Davidson'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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