iSpecimen Inc. (ISPC)
ISPC moved a median of -0.39% 30 minutes after news, and 0.00% by the close. How ISPC actually reacts to news — the realized, point-in-time move the market made, measured across 181 labeled events over the last three years with zero look-ahead.
ISPC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 40% | 171 |
| 30-min | -0.39% | 41% | 181 |
| 60-min | -0.02% | 47% | 181 |
| to close | 0.00% | 46% | 177 |
| Middle 50% of ISPC reactions | -2.35% to +2.77% |
|---|---|
| Median reaction (30-min) | -0.39% |
| Measured reactions | 181 |
Half of all iSpecimen Inc. news events land between -2.35% and +2.77% 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 ISPC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ISPC's baseline. Nothing else.
Recent ISPC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form DEFR14A iSpecimen Inc. | SEC filing · Form DEFR14A | SEC EDGAR | — | — | |
| Form 8-K iSpecimen Inc. For: Oct 09 | SEC filing · Form 8-K | SEC EDGAR | +0.89% | -3.57% | |
| Form PRER14A iSpecimen Inc. | SEC filing · Form PRER14A | SEC EDGAR | +0.89% | -3.57% | |
| Form DEF 14A iSpecimen Inc. For: Oct 09 | SEC filing · Form DEF | SEC EDGAR | -1.03% | -8.28% | |
| Form 8-K iSpecimen Inc. For: Sep 08 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -2.00% | |
| Form 8-K iSpecimen Inc. For: Sep 04 | SEC filing · Form 8-K | SEC EDGAR | -2.59% | -17.62% | |
| Form PRE 14A iSpecimen Inc. For: Sep 04 | SEC filing · Form PRE | SEC EDGAR | -2.59% | -17.62% | |
| Form 8-K iSpecimen Inc. For: Aug 26 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -3.23% | |
| iSpecimen Completes Large-Scale International Cancer Research Order; Samples Shipped Within Three Weeks | Press release | GlobeNewswire | -6.35% | -10.58% | |
| Form 10-Q iSpecimen Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.45% | -2.71% | |
| Form 8-K iSpecimen Inc. For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | -0.45% | -2.71% | |
| Form 8-K iSpecimen Inc. For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | -1.76% | +0.00% | |
| E.F. Hutton & Co. Acts as Acts as Exclusive Placement Agent for $5.0 Million Public Offering for iSpecimen | Press release | GlobeNewswire | — | -1.77% | |
| Form 8-K iSpecimen Inc. For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | +2.73% | — | |
| iSpecimen Inc. Announces Closing of $5 Million Public Offering of Common Stock and Pre-Funded Warrants | Press release | GlobeNewswire | +2.73% | — | |
| iSpecimen Inc. Announces Pricing of $5 Million Public Offering of Common Stock and Pre-Funded Warrants | Press release | GlobeNewswire | +1.13% | +24.29% | |
| Form EFFECT iSpecimen Inc. | SEC filing · Form EFFECT | SEC EDGAR | -1.59% | +0.00% | |
| Form S-1/A iSpecimen Inc. | SEC filing · Form S-1 | SEC EDGAR | -4.05% | -5.41% | |
| Form 8-K iSpecimen Inc. For: Jul 09 | SEC filing · Form 8-K | SEC EDGAR | -2.14% | -4.70% | |
| Form S-1/A iSpecimen Inc. | SEC filing · Form S-1 | SEC EDGAR | +0.00% | -8.40% | |
| Form S-1 iSpecimen Inc. | SEC filing · Form S-1 | SEC EDGAR | -1.95% | +0.00% | |
| Form EFFECT iSpecimen Inc. | SEC filing · Form EFFECT | SEC EDGAR | +1.37% | +1.17% | |
| Form S-3 iSpecimen Inc. | SEC filing · Form S-3 | SEC EDGAR | +0.00% | -2.89% | |
| Form 8-K iSpecimen Inc. For: May 29 | SEC filing · Form 8-K | SEC EDGAR | -1.65% | -7.81% | |
| Form 8-K iSpecimen Inc. For: May 29 | SEC filing · Form 8-K | SEC EDGAR | -0.63% | +5.36% | |
| Form 10-Q iSpecimen Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.71% | -6.87% | |
| Form DEFA14A iSpecimen Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | -7.53% | |
| Form NT 10-Q iSpecimen Inc. For: Mar 31 | SEC filing · Form NT | SEC EDGAR | +0.71% | -6.87% | |
| Form D iSpecimen Inc. | SEC filing · Form D | SEC EDGAR | -2.01% | +4.27% | |
| Form 8-K iSpecimen Inc. For: May 08 | SEC filing · Form 8-K | SEC EDGAR | -4.23% | -1.24% | |
| E.F. Hutton & Co. Serves as Exclusive Placement Agent on iSpecimen Inc. $2.5 Million Private Placement | Press release | GlobeNewswire | -0.97% | -1.63% | |
| iSpecimen Inc. Announces Pricing of Approximately $2.5 Million Private Placement | Press release | GlobeNewswire | -2.11% | -3.07% | |
| Form 8-K iSpecimen Inc. For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | +3.94% | +12.50% | |
| Form 8-K iSpecimen Inc. For: Apr 10 | SEC filing · Form 8-K | SEC EDGAR | +2.50% | +6.65% | |
| Form 8-K iSpecimen Inc. For: Apr 09 | SEC filing · Form 8-K | SEC EDGAR | -4.18% | -4.92% | |
| Form 10-K iSpecimen Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.27% | -5.45% | |
| Form NT 10-K iSpecimen Inc. For: Dec 31 | SEC filing · Form NT | SEC EDGAR | +0.72% | +2.95% | |
| Form 8-K iSpecimen Inc. For: Mar 13 | SEC filing · Form 8-K | SEC EDGAR | -4.62% | -34.25% | |
| iSpecimen Launches AI Agent Revolutionizing Biospecimen Matching | Press release | GlobeNewswire | -2.67% | -33.40% | |
| Form DEFA14A iSpecimen Inc. | SEC filing · Form DEFA14A | SEC EDGAR | -0.41% | +5.50% | |
| Form 8-K iSpecimen Inc. For: Feb 17 | SEC filing · Form 8-K | SEC EDGAR | +0.73% | +10.06% | |
| Form 8-K iSpecimen Inc. For: Feb 13 | SEC filing · Form 8-K | SEC EDGAR | -1.16% | -6.17% | |
| Form 8-K iSpecimen Inc. For: Feb 06 | SEC filing · Form 8-K | SEC EDGAR | -0.06% | -2.00% | |
| Form EFFECT iSpecimen Inc. | SEC filing · Form EFFECT | SEC EDGAR | -3.31% | -6.06% | |
| Form 8-K iSpecimen Inc. For: Jan 23 | SEC filing · Form 8-K | SEC EDGAR | +1.69% | +0.84% | |
| Form S-3 iSpecimen Inc. | SEC filing · Form S-3 | SEC EDGAR | -3.53% | -8.69% | |
| Form 8-K/A iSpecimen Inc. For: Dec 30 | SEC filing · Form 8-K | SEC EDGAR | -3.53% | -8.69% | |
| E.F. Hutton & Co. Acts as Exclusive Placement Agent in iSpecimen Inc.’s ~$5.5 Million Private Placement | Press release | GlobeNewswire | — | +4.31% | |
| Form DEFA14A iSpecimen Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.95% | +2.57% | |
| Form 8-K iSpecimen Inc. For: Dec 31 | SEC filing · Form 8-K | SEC EDGAR | -1.02% | +5.80% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ISPC section they belong to.
Where else ISPC is measured.
ISPC earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is iSpecimen Inc.'s median reaction calculated?
Every labeled ISPC 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 181 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 ISPC'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 ISPC'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.