Issuer positions
3
Reporting Owner Activity for Glenn P. Muir
Form 3/4/5 issuer positions and transaction evidence for this reporting owner.
Largest position
REPLIGEN CORP
Disclosed value
$5.3M
Recent activity
Available
- Location
- Bedford, MA
- Parsed owner positions
-
Reported holdings value
$5,301,441
Estimated from parsed Forms 3/4/5 when holding values are disclosed.
Issuer count
3
Distinct issuers tied to this reporting owner in parsed SEC filings.
Largest reported position
REPLIGEN CORP (RGEN)
About $4.72M reported in parsed filings.
Latest owner filing
29 May 2026
Most recent owner-level filing date in the parsed SEC record.
Values are estimates from parsed SEC Forms 3/4/5; verify them against the source filing before use.
- SEC signature
- /s/ Francis Brown, as Attorney-in-Fact
- Source evidence
- Open source filing history
Identity
1 fact
SEC ownership signals
1 fact
SEC filing record
1 fact
SEC evidence
1 fact
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Reported issuer positions for Glenn P. Muir
RGEN
Forms 3/4/5
REPLIGEN CORP
- Relationship
- Director
- Holdings value
- $4,718,808
- Past year net change
- Change %
- Report period
- 14 May 2026
STIM
Forms 3/4/5
Neuronetics, Inc.
- Relationship
- Director
- Holdings value
- $582,633
- Past year net change
- Change %
- Report period
- 28 May 2026
GTHX
Forms 3/4/5
G1 Therapeutics, Inc.
- Relationship
- Director
- Holdings value
- $0
- Past year net change
- Change %
- Report period
- 18 Sep 2024
Insider Transactions Reported by Glenn P. Muir:
| Sym | Company | Class | Transaction | % | Reported value | Reported price | Shares | Shares after | Date | Ownership |
|---|
* indicates a reported price that failed the local validity check.