Spero Therapeutics, Inc. (SPRO) SEC filings
SPRO SEC filings moved a median of -1.46% by the close. SPRO SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the SPRO overview →
61 measured SPRO SEC filing events.
Where these SPRO SEC filings landedvs 61 measured SPRO SEC filing reactions
| Middle 50% of SPRO SEC filing reactions | -4.39% to +2.04% |
|---|---|
| Median reaction (to close) | -1.46% |
| Measured reactions | 61 |
Point-in-time · zero look-ahead
Half of the 61 SPRO SEC filing events with a measured close landed between -4.39% and +2.04%; 36% closed up.
| Date | Headline | Event | 5-min | To close |
|---|---|---|---|---|
| Form EFFECT Spero Therapeutics, Inc. | SEC filing · Form EFFECT | +0.00% | +0.00% | |
| Form 8-K Spero Therapeutics, Inc. For: Aug 28 | SEC filing · Form 8-K | +2.33% | +1.67% | |
| Form S-3 Spero Therapeutics, Inc. | SEC filing · Form S-3 | +2.33% | +1.67% | |
| Form 10-Q Spero Therapeutics, Inc. For: Jun 30 | SEC filing · Form 10-Q | -0.40% | -1.59% | |
| Form 8-K Spero Therapeutics, Inc. For: Aug 12 | SEC filing · Form 8-K | -0.40% | -1.59% | |
| Form 8-K Spero Therapeutics, Inc. For: Jul 08 | SEC filing · Form 8-K | +0.94% | -20.93% | |
| Form 8-K Spero Therapeutics, Inc. For: Jun 23 | SEC filing · Form 8-K | +1.99% | +12.44% | |
| Form S-8 Spero Therapeutics, Inc. | SEC filing · Form S-8 | +2.79% | -2.33% | |
| Form 8-K Spero Therapeutics, Inc. For: Jun 17 | SEC filing · Form 8-K | +0.93% | -0.46% | |
| Form 10-Q Spero Therapeutics, Inc. For: Mar 31 | SEC filing · Form 10-Q | -0.82% | +13.12% | |
| Form 8-K Spero Therapeutics, Inc. For: May 13 | SEC filing · Form 8-K | -0.82% | +13.12% | |
| Form ARS Spero Therapeutics, Inc. For: Dec 31 | SEC filing · Form ARS | +0.00% | -0.37% | |
| Form DEF 14A Spero Therapeutics, Inc. For: Jun 23 | SEC filing · Form DEF | +0.00% | -0.37% | |
| Form DEFA14A Spero Therapeutics, Inc. | SEC filing · Form DEFA14A | +0.00% | -0.37% | |
| Form PRE 14A Spero Therapeutics, Inc. For: Jun 23 | SEC filing · Form PRE | +0.00% | -2.11% | |
| Form 10-K Spero Therapeutics, Inc. For: Dec 31 | SEC filing · Form 10-K | +2.63% | +2.19% | |
| Form 8-K Spero Therapeutics, Inc. For: Mar 26 | SEC filing · Form 8-K | +2.63% | +2.19% | |
| Form 8-K Spero Therapeutics, Inc. For: Jan 30 | SEC filing · Form 8-K | +1.40% | +3.72% | |
| Form 8-K Spero Therapeutics, Inc. For: Dec 19 | SEC filing · Form 8-K | +1.06% | -1.28% | |
| Form 10-Q Spero Therapeutics, Inc. For: Jun 30 | SEC filing · Form 10-Q | -6.14% | -10.00% | |
| Form 8-K Spero Therapeutics, Inc. For: Aug 12 | SEC filing · Form 8-K | -6.14% | -10.00% | |
| Form S-8 Spero Therapeutics, Inc. | SEC filing · Form S-8 | -6.14% | -10.00% | |
| Form 8-K Spero Therapeutics, Inc. For: Jun 12 | SEC filing · Form 8-K | -0.51% | +3.07% | |
| Form 8-K Spero Therapeutics, Inc. For: May 28 | SEC filing · Form 8-K | +8.74% | +14.08% | |
| Form 10-Q Spero Therapeutics, Inc. For: Mar 31 | SEC filing · Form 10-Q | +0.00% | -7.13% | |
| Form 8-K Spero Therapeutics, Inc. For: May 13 | SEC filing · Form 8-K | +0.00% | -7.13% | |
| Form 8-K Spero Therapeutics, Inc. For: Apr 22 | SEC filing · Form 8-K | +0.00% | -4.32% | |
| Form ARS Spero Therapeutics, Inc. For: Dec 31 | SEC filing · Form ARS | +0.00% | -4.32% | |
| Form DEF 14A Spero Therapeutics, Inc. For: Jun 12 | SEC filing · Form DEF | +0.00% | -4.32% | |
| Form DEFA14A Spero Therapeutics, Inc. | SEC filing · Form DEFA14A | +0.00% | -4.32% | |
| Form 10-K Spero Therapeutics, Inc. For: Dec 31 | SEC filing · Form 10-K | -1.18% | -9.82% | |
| Form 8-K Spero Therapeutics, Inc. For: Mar 27 | SEC filing · Form 8-K | -1.18% | -9.82% | |
| Form 8-K Spero Therapeutics, Inc. For: Feb 25 | SEC filing · Form 8-K | +1.95% | +0.01% | |
| Form 8-K Spero Therapeutics, Inc. For: Jan 07 | SEC filing · Form 8-K | +0.00% | -2.00% | |
| Form 10-Q Spero Therapeutics, Inc. For: Sep 30 | SEC filing · Form 10-Q | -0.97% | -5.60% | |
| Form 8-K Spero Therapeutics, Inc. For: Nov 14 | SEC filing · Form 8-K | -0.97% | -5.60% | |
| Form 8-K Spero Therapeutics, Inc. For: Oct 29 | SEC filing · Form 8-K | +0.96% | +24.04% | |
| Form 8-K Spero Therapeutics, Inc. For: Sep 09 | SEC filing · Form 8-K | +0.00% | -1.46% | |
| Form 10-Q Spero Therapeutics, Inc. For: Jun 30 | SEC filing · Form 10-Q | -3.62% | -7.97% | |
| Form 8-K Spero Therapeutics, Inc. For: Aug 05 | SEC filing · Form 8-K | -3.62% | -7.97% | |
| Form S-8 Spero Therapeutics, Inc. | SEC filing · Form S-8 | -3.62% | -7.97% | |
| Form 8-K Spero Therapeutics, Inc. For: May 29 | SEC filing · Form 8-K | +0.00% | +0.00% | |
| Form 10-Q Spero Therapeutics, Inc. For: Mar 31 | SEC filing · Form 10-Q | +0.31% | -1.88% | |
| Form 8-K Spero Therapeutics, Inc. For: May 15 | SEC filing · Form 8-K | +0.31% | -1.88% | |
| Form ARS Spero Therapeutics, Inc. For: Dec 31 | SEC filing · Form ARS | +2.72% | +2.04% | |
| Form DEF 14A Spero Therapeutics, Inc. For: May 29 | SEC filing · Form DEF | +2.72% | +2.04% | |
| Form DEFA14A Spero Therapeutics, Inc. | SEC filing · Form DEFA14A | +2.72% | +2.04% | |
| Form 8-K Spero Therapeutics, Inc. For: Mar 29 | SEC filing · Form 8-K | +1.15% | +5.29% | |
| Form EFFECT Spero Therapeutics, Inc. | SEC filing · Form EFFECT | +1.17% | -1.17% | |
| Form S-3 Spero Therapeutics, Inc. | SEC filing · Form S-3 | +0.29% | +1.76% | |
| Form S-8 Spero Therapeutics, Inc. | SEC filing · Form S-8 | +0.29% | +1.76% | |
| Form 10-K Spero Therapeutics, Inc. For: Dec 31 | SEC filing · Form 10-K | -0.54% | -4.92% | |
| Form 8-K Spero Therapeutics, Inc. For: Mar 13 | SEC filing · Form 8-K | -0.54% | -4.92% | |
| Form 8-K Spero Therapeutics, Inc. For: Feb 05 | SEC filing · Form 8-K | +3.65% | +9.49% | |
| Form 8-K Spero Therapeutics, Inc. For: Jan 08 | SEC filing · Form 8-K | +0.71% | +0.71% | |
| Form 8-K Spero Therapeutics, Inc. For: Jan 05 | SEC filing · Form 8-K | -1.37% | -2.72% | |
| Form 8-K Spero Therapeutics, Inc. For: Jan 02 | SEC filing · Form 8-K | -1.36% | +3.40% | |
| Form 10-Q Spero Therapeutics, Inc. For: Sep 30 | SEC filing · Form 10-Q | +3.07% | -4.39% | |
| Form 8-K Spero Therapeutics, Inc. For: Nov 13 | SEC filing · Form 8-K | +3.07% | -4.39% | |
| Form S-8 Spero Therapeutics, Inc. | SEC filing · Form S-8 | +3.07% | -4.39% | |
| Form 8-K Spero Therapeutics, Inc. For: Oct 30 | SEC filing · Form 8-K | +0.00% | +2.70% |
Keep exploring
More SPRO: earnings → · analyst actions → · SPRO overview →
Other Healthcare names and their SEC filings
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| PAVmed Inc. (PAVM) | 193 | -0.49% | 41% |
| SIENNA BIOPHARMACEUTICALS (SNNA) | 193 | 0.00% | 40% |
| Xtant Medical Holdings, Inc. (XTNT) | 193 | 0.00% | 42% |
| Apollo Medical Holdings, Inc. (AMEH) | 192 | +0.16% | 55% |
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. These are each name’s all-news baseline, not its SEC filings — that is what the link opens.