Seabridge Gold, Inc. New (SA)
SA moved a median of +0.07% 30 minutes after news, and +0.08% by the close. How SA actually reacts to news — the realized, point-in-time move the market made, measured across 206 labeled events over the last three years with zero look-ahead.
SA’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 46% | 202 |
| 30-min | +0.07% | 53% | 206 |
| 60-min | +0.05% | 52% | 206 |
| to close | +0.08% | 53% | 202 |
| Middle 50% of SA reactions | -0.42% to +0.51% |
|---|---|
| Median reaction (30-min) | +0.07% |
| Measured reactions | 206 |
Half of all Seabridge Gold, Inc. New news events land between -0.42% and +0.51% 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 SA moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to SA's baseline. Nothing else.
Recent SA events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 6-K SEABRIDGE GOLD INC For: Oct 13 | SEC filing · Form 6-K | SEC EDGAR | -0.11% | -0.59% | |
| Form 6-K SEABRIDGE GOLD INC For: Sep 22 | SEC filing · Form 6-K | SEC EDGAR | +0.25% | +2.81% | |
| Form 6-K SEABRIDGE GOLD INC For: Sep 08 | SEC filing · Form 6-K | SEC EDGAR | -0.39% | -1.43% | |
| Form 6-K SEABRIDGE GOLD INC For: Aug 20 | SEC filing · Form 6-K | SEC EDGAR | -3.42% | -12.58% | |
| Gitxsan Huwilp Government Withdraws Support for KSM Mine in Solidarity with Tsetsaut Skii km Lax Ha Nation: Calls on B.C. Government and Seabridge for True Consultation | Press release | Canada Newswire | +1.76% | +0.79% | |
| Form 6-K SEABRIDGE GOLD INC For: Aug 13 | SEC filing · Form 6-K | SEC EDGAR | -0.06% | -0.24% | |
| Form 6-K SEABRIDGE GOLD INC For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | +2.11% | +1.67% | |
| Form 6-K SEABRIDGE GOLD INC For: Jun 24 | SEC filing · Form 6-K | SEC EDGAR | -0.54% | -1.83% | |
| Form 6-K SEABRIDGE GOLD INC For: Jun 08 | SEC filing · Form 6-K | SEC EDGAR | +0.00% | +0.18% | |
| Form 6-K SEABRIDGE GOLD INC For: Jun 08 | SEC filing · Form 6-K | SEC EDGAR | -0.14% | -2.08% | |
| Form 6-K SEABRIDGE GOLD INC For: Jun 03 | SEC filing · Form 6-K | SEC EDGAR | +1.41% | -1.19% | |
| Form SD SEABRIDGE GOLD INC | SEC filing · Form SD | SEC EDGAR | -0.14% | -0.23% | |
| Form 6-K SEABRIDGE GOLD INC For: May 27 | SEC filing · Form 6-K | SEC EDGAR | +0.37% | -1.57% | |
| Form 6-K SEABRIDGE GOLD INC For: May 22 | SEC filing · Form 6-K | SEC EDGAR | -0.87% | +1.26% | |
| Form 6-K SEABRIDGE GOLD INC For: Jun 24 | SEC filing · Form 6-K | SEC EDGAR | -0.75% | +0.10% | |
| Form 6-K SEABRIDGE GOLD INC For: May 13 | SEC filing · Form 6-K | SEC EDGAR | -0.16% | -0.11% | |
| Form 6-K SEABRIDGE GOLD INC For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | -0.55% | -4.39% | |
| Form 6-K SEABRIDGE GOLD INC For: Apr 30 | SEC filing · Form 6-K | SEC EDGAR | +0.29% | +1.12% | |
| Form 6-K SEABRIDGE GOLD INC For: Apr 27 | SEC filing · Form 6-K | SEC EDGAR | -0.57% | -2.72% | |
| Form 6-K/A SEABRIDGE GOLD INC For: May 22 | SEC filing · Form 6-K | SEC EDGAR | +1.77% | +4.22% | |
| Form 6-K SEABRIDGE GOLD INC For: Apr 15 | SEC filing · Form 6-K | SEC EDGAR | +0.20% | +1.01% | |
| Form 6-K SEABRIDGE GOLD INC For: Apr 10 | SEC filing · Form 6-K | SEC EDGAR | -1.15% | -0.56% | |
| Form 6-K SEABRIDGE GOLD INC For: Jun 24 | SEC filing · Form 6-K | SEC EDGAR | -0.56% | +0.59% | |
| Form 6-K SEABRIDGE GOLD INC For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | +0.22% | +3.70% | |
| Form 40-F SEABRIDGE GOLD INC For: Dec 31 | SEC filing · Form 40-F | SEC EDGAR | +0.00% | +3.68% | |
| Form 6-K SEABRIDGE GOLD INC For: Mar 26 | SEC filing · Form 6-K | SEC EDGAR | -0.14% | +2.31% | |
| Form 6-K SEABRIDGE GOLD INC For: Mar 19 | SEC filing · Form 6-K | SEC EDGAR | +0.56% | +0.12% | |
| Form 6-K SEABRIDGE GOLD INC For: Mar 17 | SEC filing · Form 6-K | SEC EDGAR | -3.24% | -7.91% | |
| Form 6-K SEABRIDGE GOLD INC For: Mar 10 | SEC filing · Form 6-K | SEC EDGAR | +0.11% | -0.60% | |
| Form 6-K SEABRIDGE GOLD INC For: Mar 02 | SEC filing · Form 6-K | SEC EDGAR | -1.75% | +2.10% | |
| Form 6-K SEABRIDGE GOLD INC For: Feb 12 | SEC filing · Form 6-K | SEC EDGAR | +0.75% | +2.15% | |
| Form 6-K SEABRIDGE GOLD INC For: Feb 12 | SEC filing · Form 6-K | SEC EDGAR | +2.40% | +5.98% | |
| Form 6-K SEABRIDGE GOLD INC For: Feb 10 | SEC filing · Form 6-K | SEC EDGAR | -2.48% | +1.42% | |
| Form 6-K SEABRIDGE GOLD INC For: Jan 21 | SEC filing · Form 6-K | SEC EDGAR | +0.34% | -2.44% | |
| Golden Triangle Surges: Infrastructure & $5K Gold Ignite Revival | Press release | PR Newswire | +0.35% | +1.69% | |
| Form 6-K SEABRIDGE GOLD INC For: Dec 18 | SEC filing · Form 6-K | SEC EDGAR | +0.19% | -2.95% | |
| Form 6-K SEABRIDGE GOLD INC For: Dec 16 | SEC filing · Form 6-K | SEC EDGAR | +0.17% | +0.05% | |
| Form 6-K SEABRIDGE GOLD INC For: Dec 10 | SEC filing · Form 6-K | SEC EDGAR | -0.04% | +1.54% | |
| Form 6-K SEABRIDGE GOLD INC For: Nov 19 | SEC filing · Form 6-K | SEC EDGAR | -0.12% | -0.04% | |
| Form 6-K SEABRIDGE GOLD INC For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -3.14% | — | |
| Form 6-K SEABRIDGE GOLD INC For: Oct 29 | SEC filing · Form 6-K | SEC EDGAR | -0.21% | -0.68% | |
| Form 6-K SEABRIDGE GOLD INC For: Oct 07 | SEC filing · Form 6-K | SEC EDGAR | +0.37% | -1.56% | |
| Form 6-K SEABRIDGE GOLD INC For: Oct 03 | SEC filing · Form 6-K | SEC EDGAR | -0.23% | -0.21% | |
| Form 6-K SEABRIDGE GOLD INC For: Sep 15 | SEC filing · Form 6-K | SEC EDGAR | -0.93% | -4.71% | |
| Form 6-K SEABRIDGE GOLD INC For: Sep 09 | SEC filing · Form 6-K | SEC EDGAR | -0.13% | -0.52% | |
| Form 6-K SEABRIDGE GOLD INC For: Aug 13 | SEC filing · Form 6-K | SEC EDGAR | +1.29% | +1.53% | |
| Form 6-K SEABRIDGE GOLD INC For: Aug 12 | SEC filing · Form 6-K | SEC EDGAR | +0.27% | — | |
| Form 6-K SEABRIDGE GOLD INC For: Jul 14 | SEC filing · Form 6-K | SEC EDGAR | +0.13% | -0.64% | |
| Form 6-K SEABRIDGE GOLD INC For: Jun 25 | SEC filing · Form 6-K | SEC EDGAR | +0.14% | +2.98% | |
| Form 6-K SEABRIDGE GOLD INC For: Jun 26 | SEC filing · Form 6-K | SEC EDGAR | +0.14% | +2.98% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the SA section they belong to.
Where else SA is measured.
SA earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Mercer International Inc. (MERC) | 210 | -0.14% | 45% |
| Voyageur Minerals Ltd (VM_CDNX) | 208 | 0.00% | 6% |
| KRAIG BIOCRAFT LABS INC (KBLB) | 205 | -0.11% | 40% |
| B2Gold Corp Common shares (Canada) (BTG) | 203 | +0.17% | 57% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Basic Materials names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Seabridge Gold, Inc. New's median reaction calculated?
Every labeled SA 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 206 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. 53% of SA'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 SA'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.