Galera Therapeutics, Inc (GRTX) insider trading
Every open-market stock purchase and sale by Galera Therapeutics, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Insiders sold $1.4K over the last 12 months (1 sale). No open-market buys.
- Last insider buy: Nancy T Chang (Insider), $500K, 22 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $1.4K (1 sale). Last close $0.10 on Jun 4, 2026.
Recent GRTX insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Aug 3, 2026 | Mel Sorensen (CEO) | Sold (not open market) | $132K |
| Aug 3, 2026 | Joel F. Sussman (C-suite exec) | Sold (not open market) | $44K |
| Aug 3, 2026 | Michael R. Friedman (Insider) | Sold (not open market) | $3.9K |
| Aug 3, 2026 | Nancy T Chang (Insider) | Sold (not open market) | $3.9K |
| Aug 3, 2026 | Lawrence M Alleva (Insider) | Sold (not open market) | $2K |
| Aug 3, 2026 | Kevin G Lokay (Insider) | Sold (not open market) | $2K |
| Aug 3, 2026 | Lawrence M Alleva (Insider) | Sold (not open market) | — |
| Aug 3, 2026 | Lawrence M Alleva (Insider) | Sold (not open market) | — |
| Aug 3, 2026 | Nancy T Chang (Insider) | Sold (not open market) | — |
| Aug 3, 2026 | Michael R. Friedman (Insider) | Sold (not open market) | — |
| Aug 3, 2026 | Mel Sorensen (CEO) | Sold (not open market) | — |
| May 15, 2026 | Michael R. Friedman (Insider) | Bought (not open market) | — |
| May 15, 2026 | Emerald Bioventures LLC (10% owner) | Bought (not open market) | — |
| May 15, 2026 | Emerald Bioventures LLC (10% owner) | Bought (not open market) | — |
| May 15, 2026 | Nancy T Chang (Insider) | Bought (not open market) | — |
| May 15, 2026 | Nancy T Chang (Insider) | Bought (not open market) | — |
| May 15, 2026 | Michael R. Friedman (Insider) | Bought (not open market) | — |
| Apr 7, 2026 | Nancy T Chang (Insider) | Bought (not open market) | — |
| Apr 7, 2026 | Nancy T Chang (Insider) | Bought (not open market) | — |
| Apr 7, 2026 | Michael R. Friedman (Insider) | Bought (not open market) | — |
| Apr 7, 2026 | Michael R. Friedman (Insider) | Bought (not open market) | — |
| Nov 20, 2025 | Mel Sorensen (CEO) | Sold | $1.4K |
Who's trading GRTX
- Joel F. Sussman, C-suite exec: other filings, last Aug 3, 2026
- Nancy T Chang, Insider: other filings, last Aug 3, 2026
- Mel Sorensen, CEO: sold $1.4K (1 sale), last Aug 3, 2026
- Lawrence M Alleva, Insider: other filings, last Aug 3, 2026
- Michael R. Friedman, Insider: other filings, last Aug 3, 2026
- Kevin G Lokay, Insider: other filings, last Aug 3, 2026
- Emerald Bioventures LLC, 10% owner: other filings, last May 15, 2026
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