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US INSIDER PROFILE · NON-SCORING RESEARCH
Leonard Braden Michael
10% Owner
Identity: SEC owner CIK matched through an unambiguous cached owner-name crosswalk · Reporting-owner CIK: 0001373603
Purchase history
- Companies traded
- 2
- Purchases · 12M
- 1
- Purchases · 24M
- 8
- Average purchase
- $582.6K
- Median purchase
- $388.3K
- Gross purchase value
- $4.7M
Companies: Adverum Biotechnologies, Inc. | Outset Medical, Inc.
8 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 |
|---|---|---|---|---|---|
| 2026-10-05 | Outset Medical, Inc. | OM | 10% Owner | $870.3K | Open filing |
| 2025-04-28 | Adverum Biotechnologies, Inc. | ADVM | 10% Owner | $189.0K | Open filing |
| 2025-04-28 | Adverum Biotechnologies, Inc. | ADVM | 10% Owner | $189.0K | Open filing |
| 2025-04-24 | Adverum Biotechnologies, Inc. | ADVM | 10% Owner | $1.0M | Open filing |
| 2025-04-02 | Adverum Biotechnologies, Inc. | ADVM | 10% Owner | $147.1K | Open filing |
| 2025-03-27 | Adverum Biotechnologies, Inc. | ADVM | 10% Owner | $189.0K | Open filing |
| 2025-03-20 | Adverum Biotechnologies, Inc. | ADVM | 10% Owner | $587.7K | Open filing |
| 2025-02-28 | Adverum Biotechnologies, Inc. | ADVM | 10% Owner | $1.4M | 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.
No completed point-in-time price outcome is available yet.
Research patterns
- First purchase in 12M
- 1/7
- Large purchase ≥ $100k
- 8/8
- Cluster buying · 15D
- 0/8
- Buying the dip
- 0/—
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.