Momentus Inc. - Class A (MNTS)
MNTS moved a median of -0.78% 30 minutes after news, and -1.84% by the close. How MNTS actually reacts to news — the realized, point-in-time move the market made, measured across 353 labeled events over the last three years with zero look-ahead.
MNTS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 49% | 352 |
| 30-min | -0.78% | 41% | 353 |
| 60-min | -1.39% | 38% | 353 |
| to close | -1.84% | 35% | 352 |
| Middle 50% of MNTS reactions | -4.22% to +1.96% |
|---|---|
| Median reaction (30-min) | -0.78% |
| Measured reactions | 353 |
Half of all Momentus Inc. - Class A news events land between -4.22% and +1.96% 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 MNTS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MNTS's baseline. Nothing else.
Recent MNTS events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Momentus Secures Commercial Contract with ARCSPACE to Advance In-Space Manufacturing | Press release | Business Wire | -4.34% | +6.04% | |
| Momentus Demonstrates AI-Enabled LiDAR and Imaging Suite During Successful On-Orbit RPO Mission with NASA Satellite | Press release | Business Wire | +0.25% | -8.42% | |
| Momentus Awarded NASA Task Order Contract in Support of Initial Phase of FALCON-Lidar Mission to Study Earth’s Atmosphere | Press release | Business Wire | +1.18% | +0.82% | |
| Form 8-K Momentus Inc. For: Aug 21 | SEC filing · Form 8-K | SEC EDGAR | +1.67% | +0.95% | |
| Momentus Grants Inducement Awards to New Employees | Press release | Business Wire | -0.94% | -2.80% | |
| Form 8-K Momentus Inc. For: Aug 11 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.68% | |
| Form 10-Q Momentus Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.41% | -0.62% | |
| Momentus Delivering On-Orbit Success as Vigoride 7 Maneuvers Cleanly and Payload Mission Execution Continues | Press release | Business Wire | +4.26% | +5.12% | |
| Momentus’ Vigoride 8 Spacecraft Successfully Completes Critical Design Review Milestone for 2027 Mission Launch | Press release | Business Wire | +0.32% | -2.16% | |
| Form 8-K Momentus Inc. For: Jun 18 | SEC filing · Form 8-K | SEC EDGAR | -3.32% | -6.31% | |
| Momentus Secures New Commercial Contract for Vigoride-9 Orbital Service Vehicle | Press release | Business Wire | -7.13% | -6.42% | |
| Form 8-K Momentus Inc. For: Jun 11 | SEC filing · Form 8-K | SEC EDGAR | -1.54% | -7.64% | |
| Momentus Announces Pricing of a $25 Million Registered Direct Offering of Common Stock Priced At-The-Market Under Nasdaq Rules with New and Existing Fundamental Institutional Investors | Press release | Business Wire | -4.66% | -14.34% | |
| Momentus Strengthens Balance Sheet with $76 Million in Cash While Progress in Executing Current Space Mission Reinforces Long-Term Growth Strategy | Press release | Business Wire | -8.91% | -24.61% | |
| Form EFFECT Momentus Inc. | SEC filing · Form EFFECT | SEC EDGAR | +4.12% | -10.23% | |
| Form S-3/A Momentus Inc. | SEC filing · Form S-3 | SEC EDGAR | -8.18% | -14.67% | |
| Form 8-K Momentus Inc. For: May 26 | SEC filing · Form 8-K | SEC EDGAR | +7.87% | -0.42% | |
| Momentus Announces Pricing of a $25 Million Private Placement of Common Stock Priced At-The-Market Under Nasdaq Rules with Existing Fundamental Institutional Investors | Press release | Business Wire | +7.03% | +0.00% | |
| Form S-3 Momentus Inc. | SEC filing · Form S-3 | SEC EDGAR | -4.05% | +11.93% | |
| Form 8-K Momentus Inc. For: May 19 | SEC filing · Form 8-K | SEC EDGAR | +0.68% | -0.27% | |
| Form S-8 Momentus Inc. | SEC filing · Form S-8 | SEC EDGAR | +0.13% | -1.47% | |
| Momentus Grants Inducement Awards to Six New Employees | Press release | Business Wire | -3.29% | +18.44% | |
| Form 10-Q Momentus Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +4.63% | |
| Form 8-K Momentus Inc. For: May 05 | SEC filing · Form 8-K | SEC EDGAR | -4.17% | -1.25% | |
| Momentus Publishes Letter to Shareholders Highlighting Progress | Press release | Business Wire | -4.17% | -1.25% | |
| Form EFFECT Momentus Inc. | SEC filing · Form EFFECT | SEC EDGAR | -12.11% | -19.63% | |
| Fully Booked Momentus Mission Advances Through Preliminary Design Review, Driving Toward 2027 Launch Under NASA Contracts | Press release | Business Wire | -12.11% | -19.63% | |
| Solstar Confirms Successful On-Orbit Operation of Deke Space Communicator™ Following Launch on SpaceX Transporter-16 Mission | Press release | PR Web | -0.18% | +11.15% | |
| Form S-3 Momentus Inc. | SEC filing · Form S-3 | SEC EDGAR | +6.21% | -3.81% | |
| Form 8-K Momentus Inc. For: Apr 17 | SEC filing · Form 8-K | SEC EDGAR | +2.40% | -4.96% | |
| Form 8-K Momentus Inc. For: Apr 14 | SEC filing · Form 8-K | SEC EDGAR | -3.20% | +19.03% | |
| Momentus Announces Closing of $5 Million Private Placement of Common Stock Priced At-The-Market Under Nasdaq Rules with a New Fundamental Institutional Investor | Press release | Business Wire | -3.20% | +19.03% | |
| Momentus CEO to Moderate “The Global Economics of Space” Panel at the 2026 Space Symposium | Press release | Business Wire | +22.56% | +27.49% | |
| Momentus Announces Pricing of a $5 Million Private Placement of Common Stock Priced At-The-Market Under Nasdaq Rules with a New Fundamental Institutional Investor | Press release | Business Wire | +1.46% | -3.69% | |
| Form 8-K Momentus Inc. For: Apr 13 | SEC filing · Form 8-K | SEC EDGAR | +2.74% | +34.80% | |
| Vigoride-7 Fires All Thrusters and Clears Key Milestones | Press release | Business Wire | +2.74% | +34.80% | |
| Form ARS Momentus Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +2.74% | +34.80% | |
| Form DEF 14A Momentus Inc. For: May 19 | SEC filing · Form DEF | SEC EDGAR | +2.74% | +34.80% | |
| Form S-8 Momentus Inc. | SEC filing · Form S-8 | SEC EDGAR | -5.00% | -8.89% | |
| Form 10-K Momentus Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.48% | +1.75% | |
| Mission Update on Momentus Vigoride 7 Orbital Service Vehicle | Press release | Business Wire | -5.01% | -2.90% | |
| Momentus Launches Vigoride 7 Orbital Service Vehicle on SpaceX Transporter-16 Mission | Press release | Business Wire | +10.53% | -9.81% | |
| Momentus Space Expands Production Capacity with Move to New San Jose Facility | Press release | Business Wire | +0.32% | -5.75% | |
| Momentus Awarded NASA Contract to Design Solar Sail Demonstration Mission | Press release | Business Wire | -1.08% | -8.42% | |
| Momentus Set to Launch Multiple U.S. Government and Commercial Payloads, Showcasing Advanced Capabilities on Upcoming Transporter-16 Rideshare with SpaceX | Press release | Business Wire | +2.46% | +0.82% | |
| Form 8-K Momentus Inc. For: Feb 20 | SEC filing · Form 8-K | SEC EDGAR | +2.46% | +0.82% | |
| Form 8-K Momentus Inc. For: Feb 06 | SEC filing · Form 8-K | SEC EDGAR | -0.52% | -5.74% | |
| Momentus Receives Payments for Successful Execution of Cutting-edge U.S. Air Force and NASA Contracts | Press release | Business Wire | +4.36% | -1.63% | |
| Momentus CEO John Rood Scheduled to Speak on Golden Dome Panel at SmallSat Symposium 2026 | Press release | Business Wire | -0.19% | +4.40% | |
| Momentus and NASA Partner to Advance In-Orbit Servicing and Space Operations | Press release | Business Wire | +5.22% | -13.79% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MNTS section they belong to.
Where else MNTS is measured.
MNTS earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Momentus Inc. - Class A's median reaction calculated?
Every labeled MNTS 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 353 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. 41% of MNTS'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 MNTS'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.