GALERA THERAPEUTICS INC (GRTX)
GRTX moved a median of 0.00% 30 minutes after news, and 0.00% by the close. How GRTX actually reacts to news — the realized, point-in-time move the market made, measured across 129 labeled events over the last three years with zero look-ahead.
GRTX’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 36% | 109 |
| 30-min | 0.00% | 35% | 115 |
| 60-min | 0.00% | 43% | 116 |
| to close | 0.00% | 43% | 118 |
| Middle 50% of GRTX reactions | -1.80% to +2.44% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 129 |
Half of all GALERA THERAPEUTICS INC news events land between -1.80% and +2.44% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when GRTX moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to GRTX's baseline. Nothing else.
Recent GRTX events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form EFFECT Galera Therapeutics, | SEC filing · Form EFFECT | SEC EDGAR | — | — | |
| Form 8-K Galera Therapeutics, For: Jul 12 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form DEFA14C Galera Therapeutics, | SEC filing · Form DEFA14C | SEC EDGAR | — | — | |
| Form 8-K Galera Therapeutics, For: Jul 07 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +1.02% | |
| Form DEFA14C Galera Therapeutics, | SEC filing · Form DEFA14C | SEC EDGAR | +0.00% | +1.02% | |
| Form DEFM14C Galera Therapeutics, | SEC filing · Form DEFM14C | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-K Galera Therapeutics, For: May 15 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -8.10% | |
| Form 8-K Galera Therapeutics, For: May 11 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Form 10-Q Galera Therapeutics, For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-K Galera Therapeutics, For: May 08 | SEC filing · Form 8-K | SEC EDGAR | +11.11% | +12.07% | |
| Form ARS Galera Therapeutics, For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.00% | +7.18% | |
| Form DEF 14A Galera Therapeutics, For: May 08 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +7.18% | |
| Form 8-K Galera Therapeutics, For: Apr 14 | SEC filing · Form 8-K | SEC EDGAR | +14.87% | +6.62% | |
| Galera Therapeutics and Obsidian Therapeutics Announce Merger Agreement and $350 Million Concurrent Private Placement | Press release | GlobeNewswire | +1.43% | -6.07% | |
| GRTX Stock Alert: Halper Sadeh LLC is Investigating Whether Galera Therapeutics, Inc. is Obtaining a Fair Price for its Shareholders | Press release | Business Wire | +0.13% | -7.39% | |
| Obsidian Therapeutics and Galera Therapeutics Announce Merger Agreement and $350 Million Concurrent Private Placement | Press release | Business Wire | +14.87% | +6.62% | |
| Form PRE 14A Galera Therapeutics, For: May 08 | SEC filing · Form PRE | SEC EDGAR | +0.00% | +2.19% | |
| Form 8-K Galera Therapeutics, For: Apr 07 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.19% | |
| Form 8-K Galera Therapeutics, For: Apr 03 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -2.50% | |
| Form 10-K Galera Therapeutics, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -2.39% | +7.38% | |
| Form 8-K Galera Therapeutics, For: Feb 12 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +16.74% | |
| Form 8-K Galera Therapeutics, For: Feb 06 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Form 10-Q Galera Therapeutics, For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K Galera Therapeutics, For: Oct 21 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +17.39% | |
| Galera Therapeutics Announces Acquisition of Dismutase Mimetics Portfolio by Toronto-based Biossil for up to $105 Million | Press release | GlobeNewswire | +47.22% | +27.78% | |
| Form 8-K Galera Therapeutics, For: Oct 21 | SEC filing · Form 8-K | SEC EDGAR | +47.22% | +27.78% | |
| Form 8-K Galera Therapeutics, For: Aug 27 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -5.58% | |
| Form 10-Q Galera Therapeutics, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -7.28% | |
| Form 10-Q Galera Therapeutics, For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -5.35% | -1.24% | |
| Form 8-K Galera Therapeutics, For: Mar 31 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +3.27% | |
| Form 10-K Galera Therapeutics, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | -0.92% | |
| Form 8-K/A Galera Therapeutics, For: Dec 30 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +3.02% | |
| Form 8-K Galera Therapeutics, For: Feb 24 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +3.66% | |
| Form DEF 14A Galera Therapeutics, For: Feb 24 | SEC filing · Form DEF | SEC EDGAR | +6.67% | +6.67% | |
| Form D Galera Therapeutics, | SEC filing · Form D | SEC EDGAR | +0.00% | +1.70% | |
| Form D Galera Therapeutics, | SEC filing · Form D | SEC EDGAR | — | +0.00% | |
| Form 8-K Galera Therapeutics, For: Dec 30 | SEC filing · Form 8-K | SEC EDGAR | +3.60% | +11.44% | |
| Galera Therapeutics completes acquisition of Nova Pharmaceuticals | Press release | GlobeNewswire | +3.60% | +11.44% | |
| Form 8-K Galera Therapeutics, For: Dec 20 | SEC filing · Form 8-K | SEC EDGAR | +6.76% | +10.32% | |
| Form 10-Q Galera Therapeutics, For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -33.12% | -4.46% | |
| Form NT 10-Q Galera Therapeutics, For: Sep 30 | SEC filing · Form NT | SEC EDGAR | +3.75% | +0.00% | |
| Form 8-K Galera Therapeutics, For: Oct 17 | SEC filing · Form 8-K | SEC EDGAR | -1.66% | -21.85% | |
| Form 8-K Galera Therapeutics, For: Aug 31 | SEC filing · Form 8-K | SEC EDGAR | +0.16% | +12.00% | |
| Form DEF 14A Galera Therapeutics, For: Oct 17 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -2.95% | |
| Form PRE 14A Galera Therapeutics, For: Oct 17 | SEC filing · Form PRE | SEC EDGAR | +1.44% | -2.82% | |
| Form 10-Q Galera Therapeutics, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +7.82% | -11.91% | |
| Form 8-K Galera Therapeutics, For: Aug 14 | SEC filing · Form 8-K | SEC EDGAR | +7.82% | -11.91% | |
| Galera Announces Board Approval of Complete Liquidation and Dissolution | Press release | GlobeNewswire | +7.82% | -11.91% | |
| Form 8-K Galera Therapeutics, For: Aug 08 | SEC filing · Form 8-K | SEC EDGAR | -27.78% | -25.36% | |
| Form 8-K Galera Therapeutics, For: Jun 04 | SEC filing · Form 8-K | SEC EDGAR | -1.27% | -0.91% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the GRTX section they belong to.
Where else GRTX is measured.
GRTX earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is GALERA THERAPEUTICS INC's median reaction calculated?
Every labeled GRTX news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 129 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 35% of GRTX's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does GRTX's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.