Leonard Braden Michael
10% Owner · Outset Medical, Inc.
Every open-market stock purchase Leonard Braden Michael has reported to the SEC on Form 4 that met our signal bar, parsed straight from the filings. This page tracks where those buys landed inside insider clusters and how the prices paid compare to where the stock trades now.
Where the buys stand today
- ADVMAdverum Biotechnologies, Inc.
13 purchases totalling $5.6M at an average of $4.96 per share. See all insider buying in ADVM →
Avg price paid$4.96Latest price—Market cap$96.3M - ACRSAclaris Therapeutics, Inc.
15 purchases totalling $5.3M at an average of $1.15 per share. See all insider buying in ACRS →
Avg price paid$1.15Latest price—Market capUnknown - ANTXAN2 Therapeutics, Inc.
One purchase totalling $1.6M at an average of $1.04 per share. See all insider buying in ANTX →
Avg price paid$1.04Latest price—Market capUnknown - RPHMReneo Pharmaceuticals, Inc.
7 purchases totalling $1.6M at an average of $1.44 per share. See all insider buying in RPHM →
Avg price paid$1.44Latest price—Market capUnknown - AVROAVROBIO, Inc.
3 purchases totalling $972.8K at an average of $1.27 per share. See all insider buying in AVRO →
Avg price paid$1.27Latest price—Market capUnknown - OMOutset Medical, Inc.
2 purchases totalling $870.3K at an average of $3.55 per share. See all insider buying in OM →
Avg price paid$3.55Latest price—Market capUnknown
Cluster participation
Qualifying buys grouped with other insiders buying the same stock — the pattern this site exists to catch.
All reported buys
| Date | Ticker | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Oct 2, 2026 | 16,575 | $3.88 | $64.2K | SEC ↗ | |
| Oct 1, 2026 | 228,334 | $3.53 | $806.0K | SEC ↗ | |
| Apr 23, 2025 | ADVMcluster | 50,000 | $2.98 | $149.0K | SEC ↗ |
| Apr 22, 2025 | ADVMcluster | 300,000 | $3.00 | $900.0K | SEC ↗ |
| Mar 26, 2025 | ADVMcluster | 20,407 | $5.04 | $102.9K | SEC ↗ |
| Mar 26, 2025 | ADVMcluster | 20,407 | $5.04 | $102.9K | SEC ↗ |
| Mar 20, 2025 | ADVMcluster | 30,600 | $5.61 | $171.7K | SEC ↗ |
| Mar 19, 2025 | ADVMcluster | 25,000 | $4.94 | $123.5K | SEC ↗ |
| Mar 18, 2025 | ADVMcluster | 44,341 | $4.73 | $209.7K | SEC ↗ |
| Feb 28, 2025 | ADVMcluster | 85,068 | $4.60 | $391.3K | SEC ↗ |
| Feb 27, 2025 | ADVMcluster | 86,802 | $4.46 | $387.1K | SEC ↗ |
| Feb 26, 2025 | ADVMcluster | 164,886 | $4.01 | $661.2K | SEC ↗ |
| Sep 25, 2024 | RPHMcluster | 68,746 | $1.50 | $103.1K | SEC ↗ |
| Sep 16, 2024 | RPHMcluster | 172,747 | $1.37 | $236.7K | SEC ↗ |
| Sep 13, 2024 | RPHMcluster | 150,000 | $1.31 | $196.5K | SEC ↗ |
| Aug 14, 2024 | RPHMcluster | 100,487 | $1.41 | $141.7K | SEC ↗ |
| Aug 14, 2024 | 1,500,000 | $1.04 | $1.6M | SEC ↗ | |
| Aug 13, 2024 | RPHMcluster | 171,339 | $1.39 | $238.2K | SEC ↗ |
| Aug 5, 2024 | 206,025 | $1.24 | $255.5K | SEC ↗ | |
| Aug 2, 2024 | 167,544 | $1.29 | $216.1K | SEC ↗ | |
| Jul 31, 2024 | 100,000 | $1.33 | $133.0K | SEC ↗ | |
| Jul 30, 2024 | 85,800 | $7.15 | $613.5K | SEC ↗ | |
| Jul 30, 2024 | 173,730 | $1.30 | $225.8K | SEC ↗ | |
| Jul 18, 2024 | 130,317 | $1.30 | $169.4K | SEC ↗ | |
| Jul 18, 2024 | 80,718 | $9.11 | $735.3K | SEC ↗ | |
| Jul 17, 2024 | 135,546 | $7.75 | $1.1M | SEC ↗ | |
| Jul 5, 2024 | 123,017 | $1.15 | $141.5K | SEC ↗ | |
| Jul 3, 2024 | 143,288 | $1.16 | $166.2K | SEC ↗ | |
| Jul 1, 2024 | 107,434 | $1.14 | $122.5K | SEC ↗ | |
| Jun 28, 2024 | 801,000 | $1.12 | $897.1K | SEC ↗ | |
| Jun 28, 2024 | 400,000 | $1.13 | $452.0K | SEC ↗ | |
| Jun 27, 2024 | 235,000 | $1.15 | $270.3K | SEC ↗ | |
| Jun 17, 2024 | 150,000 | $1.13 | $169.5K | SEC ↗ | |
| Jun 14, 2024 | 345,000 | $1.17 | $403.7K | SEC ↗ | |
| Jun 13, 2024 | 500,000 | $1.15 | $575.0K | SEC ↗ | |
| Jun 11, 2024 | 1,000,000 | $1.08 | $1.1M | SEC ↗ | |
| May 14, 2024 | 335,000 | $1.54 | $515.9K | SEC ↗ | |
| May 14, 2024 | 79,281 | $1.56 | $123.7K | SEC ↗ | |
| May 14, 2024 | 296,882 | $1.30 | $385.9K | SEC ↗ | |
| May 13, 2024 | 216,053 | $1.26 | $272.2K | SEC ↗ | |
| May 13, 2024 | 253,700 | $1.24 | $314.6K | SEC ↗ |
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About this data
Figures are parsed from Leonard Braden Michael's Form 4 filings on SEC EDGAR (CIK 1373603) and cover open-market purchases (transaction code P) — grants, option exercises, and sales are excluded, which is why totals here can differ from raw filing counts. Every row links to its source document.
This page is informational and reflects public filing data. It is not investment advice.