Amentum Holdings, Inc. (AMTM) SEC filings
AMTM SEC filings moved a median of -1.01% by the close. AMTM SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the AMTM overview →
32 measured AMTM SEC filing events.
Where these AMTM SEC filings landedvs 32 measured AMTM SEC filing reactions
| Middle 50% of AMTM SEC filing reactions | -2.79% to +1.81% |
|---|---|
| Median reaction (to close) | -1.01% |
| Measured reactions | 32 |
Point-in-time · zero look-ahead
Half of the 32 AMTM SEC filing events with a measured close landed between -2.79% and +1.81%; 44% closed up.
| Date | Headline | Event | 5-min | To close |
|---|---|---|---|---|
| Form 8-K Amentum Holdings, Inc. For: Sep 28 | SEC filing · Form 8-K | +0.38% | +0.44% | |
| Form 10-Q Amentum Holdings, Inc. For: Jul 03 | SEC filing · Form 10-Q | +1.31% | +1.67% | |
| Form 10-Q Amentum Holdings, Inc. For: Apr 03 | SEC filing · Form 10-Q | -2.08% | -5.70% | |
| Form 8-K Amentum Holdings, Inc. For: May 11 | SEC filing · Form 8-K | -2.23% | -4.74% | |
| Form 8-K Amentum Holdings, Inc. For: Apr 24 | SEC filing · Form 8-K | +0.95% | -1.93% | |
| Form 10-Q Amentum Holdings, Inc. For: Jan 02 | SEC filing · Form 10-Q | +3.65% | -0.28% | |
| Form 8-K Amentum Holdings, Inc. For: Feb 06 | SEC filing · Form 8-K | -1.07% | -3.58% | |
| Form 8-K Amentum Holdings, Inc. For: Feb 09 | SEC filing · Form 8-K | +3.65% | -0.28% | |
| Form ARS Amentum Holdings, Inc. For: Oct 03 | SEC filing · Form ARS | +1.62% | +1.81% | |
| Form DEF 14A Amentum Holdings, Inc. For: Feb 06 | SEC filing · Form DEF | +1.62% | +1.81% | |
| Form DEFA14A Amentum Holdings, Inc. | SEC filing · Form DEFA14A | +1.62% | +1.81% | |
| Form 10-K Amentum Holdings, Inc. For: Oct 03 | SEC filing · Form 10-K | -1.08% | -4.06% | |
| Form 8-K Amentum Holdings, Inc. For: Nov 24 | SEC filing · Form 8-K | +6.90% | +7.22% | |
| Form S-3ASR Amentum Holdings, Inc. | SEC filing · Form S-3ASR | +0.24% | +0.52% | |
| Form 10-Q Amentum Holdings, Inc. For: Jun 27 | SEC filing · Form 10-Q | +0.29% | +0.04% | |
| Form 8-K Amentum Holdings, Inc. For: Aug 05 | SEC filing · Form 8-K | +2.78% | +8.43% | |
| Form 10-Q Amentum Holdings, Inc. For: Mar 28 | SEC filing · Form 10-Q | -0.99% | +0.61% | |
| Form 8-K Amentum Holdings, Inc. For: May 06 | SEC filing · Form 8-K | +4.32% | +4.82% | |
| Form EFFECT Amentum Holdings, Inc. | SEC filing · Form EFFECT | -0.50% | +3.02% | |
| Form S-1 Amentum Holdings, Inc. | SEC filing · Form S-1 | +1.06% | -1.75% | |
| Form 8-K Amentum Holdings, Inc. For: Mar 05 | SEC filing · Form 8-K | +1.06% | -1.75% | |
| Form 8-K Amentum Holdings, Inc. For: Mar 07 | SEC filing · Form 8-K | +1.06% | -1.75% | |
| Form 10-Q Amentum Holdings, Inc. For: Dec 27 | SEC filing · Form 10-Q | +0.83% | -2.23% | |
| Form 8-K Amentum Holdings, Inc. For: Feb 04 | SEC filing · Form 8-K | +1.86% | +3.14% | |
| Form 8-K Amentum Holdings, Inc. For: Jan 28 | SEC filing · Form 8-K | +0.05% | +5.38% | |
| Form ARS Amentum Holdings, Inc. For: Sep 27 | SEC filing · Form ARS | +0.25% | -2.53% | |
| Form DEF 14A Amentum Holdings, Inc. For: Mar 05 | SEC filing · Form DEF | +0.25% | -2.53% | |
| Form DEFA14A Amentum Holdings, Inc. | SEC filing · Form DEFA14A | +0.25% | -2.53% | |
| Form 10-K Amentum Holdings, Inc. For: Sep 27 | SEC filing · Form 10-K | -0.28% | -6.01% | |
| Form 8-K Amentum Holdings, Inc. For: Dec 16 | SEC filing · Form 8-K | -3.59% | -10.19% | |
| Form 8-K Amentum Holdings, Inc. For: Nov 06 | SEC filing · Form 8-K | +0.68% | -9.83% | |
| Form S-8 Amentum Holdings, Inc. | SEC filing · Form S-8 | -0.24% | -4.64% |
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