HENDERSON MICHAEL THOMAS
Chief Executive Officer
HENDERSON MICHAEL THOMAS has filed 16 SEC Form 4 filings (42 transaction rows) across 2 companies, including APGE, SYRE, with disclosures dating back to 2025. 16 of those filings fall inside the rolling window. Most recent filing: Sep 3, 2026.
On the most recent filing, HENDERSON MICHAEL THOMAS is listed as Chief Executive Officer at Apogee Therapeutics, Inc. Inside the rolling window, HENDERSON MICHAEL THOMAS reported no open-market purchases and 13 open-market sales totaling $36.3M in APGE and SYRE. The largest disclosed transaction in the window is a sale of 80,000 APGE shares on Jun 22, 2026, worth $10.6M.
Companies traded
Other insiders at APGE
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$36.3M
reported sales (SEC code S)
Companies
2
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| APGE | Chief Executive Officer | Sale | 20,000 | $2.7M | Jul 11 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 80,000 | $10.6M | Jun 25 | SEC ↗ | |
| SYRE | Director | Sale | 20,000 | $2.0M | Jun 24 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 20,000 | $1.7M | Jun 12 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 20,000 | $1.6M | May 15 | SEC ↗ | |
| SYRE | Director | Sale | 80,000 | $6.0M | May 9 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 20,000 | $1.7M | Apr 10 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 20,000 | $1.5M | Mar 13 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 20,000 | $1.3M | Feb 13 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 20,000 | $1.6M | Jan 16 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 20,000 | $1.5M | Dec 12 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 40,000 | $3.0M | Dec 5 | SEC ↗ | |
| APGE | Chief Executive Officer | Sale | 20,000 | $1.3M | Nov 13 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has HENDERSON MICHAEL THOMAS made?
HENDERSON MICHAEL THOMAS has filed 16 SEC Form 4 filings (42 transaction rows) across 2 companies, including APGE, SYRE since 2025.
Which companies does HENDERSON MICHAEL THOMAS trade?
HENDERSON MICHAEL THOMAS has filed SEC Form 4 disclosures for 2 companies, including APGE, SYRE.
When was HENDERSON MICHAEL THOMAS's most recent SEC Form 4 filing?
HENDERSON MICHAEL THOMAS's most recent SEC Form 4 filing on Tracefour is dated Sep 3, 2026.
What is HENDERSON MICHAEL THOMAS's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, HENDERSON MICHAEL THOMAS is listed as Chief Executive Officer.
What is HENDERSON MICHAEL THOMAS's total buy and sell value in the current window?
Inside the rolling retention window, HENDERSON MICHAEL THOMAS bought $0 and sold $36.3M based on SEC Form 4 filings.
What was HENDERSON MICHAEL THOMAS's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 80,000 APGE shares on 2026-06-22, worth $10.6M, per SEC Form 4 filings.