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US INSIDER PROFILE · NON-SCORING RESEARCH
Durso Jerome Benedict
Chief Executive Officer | Director | President
Identity: SEC reporting-owner CIK · Reporting-owner CIK: 0001698665
Purchase history
- Companies traded
- 1
- Purchases · 12M
- 4
- Purchases · 24M
- 4
- Average purchase
- $53.4K
- Median purchase
- $49.4K
- Gross purchase value
- $213.8K
Companies: Altimmune, Inc.
4 SEC accession(s) · 0 joint-owner event(s). Values are reported Form 4 transaction values in USD.
Qualifying purchase disclosures
| Published | Company | Ticker | Role | Reported value | SEC source |
|---|---|---|---|---|---|
| 2026-08-13 | Altimmune, Inc. | ALT | Chief Executive Officer | President | $44.2K | Open filing |
| 2026-04-01 | Altimmune, Inc. | ALT | Chief Executive Officer | President | $47.1K | Open filing |
| 2026-03-09 | Altimmune, Inc. | ALT | Chief Executive Officer | President | $70.8K | Open filing |
| 2025-12-22 | Altimmune, Inc. | ALT | Director | $51.6K | Open filing |
Post-purchase outcomes
Excess return = stock return − S&P 500 ETF (SPY adjusted close) return. Returns start on the first shared trading session on or after publication.
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 4Small Sample | 100.0% (4/4) | 50.0% (2/4) | -0.5% | -2.4% | -13.1% |
| 20D | 4Small Sample | 100.0% (4/4) | 50.0% (2/4) | +2.5% | +2.0% | -26.3% |
| 60D | 3Small Sample | 100.0% (3/3) | 0.0% (0/3) | -19.1% | -23.7% | -37.5% |
| 120D | 3Small Sample | 100.0% (3/3) | 0.0% (0/3) | -33.9% | -32.0% | -46.6% |
Research patterns
- First purchase in 12M
- 1/4
- Large purchase ≥ $100k
- 0/4
- Cluster buying · 15D
- 2/4
- Buying the dip
- 4/4
Routine / opportunistic: Not classifiable. These labels never affect the score or ranking.
Small samples remain visible but are not scored. This research enrichment never affects US-v1.1.