Collegium Pharmaceutical, Inc. (COLL)
COLL moved a median of +0.15% 30 minutes after news, and -0.03% by the close. How COLL actually reacts to news — the realized, point-in-time move the market made, measured across 330 labeled events over the last three years with zero look-ahead.
COLL’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.02% | 45% | 326 |
| 30-min | +0.15% | 56% | 330 |
| 60-min | 0.00% | 49% | 330 |
| to close | -0.03% | 46% | 326 |
| Middle 50% of COLL reactions | -0.53% to +0.78% |
|---|---|
| Median reaction (30-min) | +0.15% |
| Measured reactions | 330 |
Half of all Collegium Pharmaceutical, Inc. news events land between -0.53% and +0.78% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How COLL reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 22 | +0.39% | 64% | +0.48% |
| Analyst downgrades | 22 | -0.02% | 50% | -1.25% |
| Rating reiterations | 49 | -0.03% | 47% | +0.39% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 3 further classes were observed with fewer than 10 measured events and are not published. See how COLL ranks against every other measured name →
That’s how COLL usually reacts — get an email when it moves on news →Email me when COLL moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to COLL's baseline. Nothing else.
Recent COLL events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Collegium Launches "Start Talking ADHD" with Practical Support to Help Families Navigate Care, School and Everyday Life | Press release | GlobeNewswire | -0.72% | -0.82% | |
| Collegium to Participate in Upcoming Investor Conferences | Press release | GlobeNewswire | +0.32% | +0.17% | |
| Collegium Announces $50 Million Accelerated Share Repurchase Program | Press release | GlobeNewswire | +1.02% | +1.37% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | +1.02% | +1.37% | |
| Collegium Reports Second Quarter 2026 Financial Results and Highlights Recent Company Progress | Press release | GlobeNewswire | +2.58% | -6.16% | |
| Form 10-Q COLLEGIUM PHARMACEUTICAL For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +2.58% | -6.16% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | +2.58% | -6.16% | |
| Collegium to Report Second Quarter 2026 Financial Results on August 6, 2026 | Press release | GlobeNewswire | -0.90% | +3.70% | |
| Collegium Pharmaceutical Announces New Corporate Headquarters at One Lincoln in Boston | Press release | GlobeNewswire | +1.80% | -1.69% | |
| Form 8-K/A COLLEGIUM PHARMACEUTICAL For: May 12 | SEC filing · Form 8-K | SEC EDGAR | +0.30% | -1.86% | |
| Collegium Pharmaceutical Reports Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | GlobeNewswire | +2.03% | +1.09% | |
| Form S-8 COLLEGIUM PHARMACEUTICAL | SEC filing · Form S-8 | SEC EDGAR | -0.21% | -2.93% | |
| Collegium to Participate in 2026 Jefferies Global Healthcare Conference | Press release | GlobeNewswire | +0.69% | -0.68% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: May 14 | SEC filing · Form 8-K | SEC EDGAR | +1.14% | -0.03% | |
| Collegium Completes Acquisition of AZSTARYS® from Corium Therapeutics | Press release | GlobeNewswire | -0.46% | -0.56% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: May 12 | SEC filing · Form 8-K | SEC EDGAR | -0.46% | -0.56% | |
| Collegium Reports First Quarter 2026 Financial Results and Highlights Recent Company Progress | Press release | GlobeNewswire | -2.82% | +5.58% | |
| Form 10-Q COLLEGIUM PHARMACEUTICAL For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -2.82% | +5.58% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: May 07 | SEC filing · Form 8-K | SEC EDGAR | -2.82% | +5.58% | |
| Collegium to Report First Quarter 2026 Financial Results on May 7, 2026 | Press release | GlobeNewswire | +1.26% | -2.74% | |
| Collegium to Participate in Upcoming Investor Conferences | Press release | GlobeNewswire | +0.49% | -0.03% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: Apr 02 | SEC filing · Form 8-K | SEC EDGAR | +0.49% | -0.03% | |
| Form ARS COLLEGIUM PHARMACEUTICAL For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.49% | -0.03% | |
| Form DEF 14A COLLEGIUM PHARMACEUTICAL For: May 14 | SEC filing · Form DEF | SEC EDGAR | +0.49% | -0.03% | |
| Collegium to Acquire AZSTARYS® from Corium Therapeutics, Strengthening Position in ADHD and Accelerating Growth Trajectory | Press release | GlobeNewswire | -2.99% | +0.55% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: Mar 19 | SEC filing · Form 8-K | SEC EDGAR | -1.79% | -2.40% | |
| Collegium to Present New Real-World Data at PainConnect 2026 | Press release | GlobeNewswire | +0.09% | -4.39% | |
| Paris Hilton Shares Her Experience with JORNAY PM and Launches New 'Embrace Your Sparkle' Campaign with Collegium to Empower the ADHD Community | Press release | GlobeNewswire | -1.53% | -2.20% | |
| Collegium to Participate in Upcoming Investor Conferences | Press release | GlobeNewswire | -0.32% | -0.46% | |
| Collegium Reports Fourth Quarter and Full-Year 2025 Financial Results | Press release | GlobeNewswire | -0.33% | +5.92% | |
| Form 10-K COLLEGIUM PHARMACEUTICAL For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.33% | +5.92% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: Feb 26 | SEC filing · Form 8-K | SEC EDGAR | -0.33% | +5.92% | |
| Boston Legacy FC Announces Sensory Room Sponsorship with Collegium Pharmaceutical | Press release | GlobeNewswire | +0.33% | -0.66% | |
| Collegium to Report Fourth Quarter and Full-Year 2025 Financial Results on February 26, 2026 | Press release | GlobeNewswire | +1.05% | -0.59% | |
| Collegium to Present Four Real-World Data Posters at APSARD 2026 Annual Conference | Press release | GlobeNewswire | +0.11% | +1.19% | |
| Collegium Provides 2026 Financial Guidance and Business Update | Press release | GlobeNewswire | +0.20% | +2.20% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: Jan 08 | SEC filing · Form 8-K | SEC EDGAR | +0.20% | +2.20% | |
| Collegium Announces the Closing of $980 Million Syndicated Credit Facility | Press release | GlobeNewswire | -1.44% | -4.23% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: Dec 23 | SEC filing · Form 8-K | SEC EDGAR | -1.44% | -4.23% | |
| Collegium to Participate in Upcoming Investor Conferences | Press release | GlobeNewswire | +1.96% | +5.22% | |
| Collegium Reports Third Quarter 2025 Financial Results; Raises 2025 Guidance | Press release | GlobeNewswire | -0.65% | +1.02% | |
| Form 10-Q COLLEGIUM PHARMACEUTICAL For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.65% | +1.02% | |
| Form 8-K COLLEGIUM PHARMACEUTICAL For: Nov 06 | SEC filing · Form 8-K | SEC EDGAR | -0.65% | +1.02% | |
| Paris Hilton Collaborates with Collegium Pharmaceutical to Share Her Personal ADHD Journey and Experience with Treatment | Press release | GlobeNewswire | +0.35% | -1.33% | |
| Collegium to Report Third Quarter 2025 Financial Results on November 6, 2025 | Press release | GlobeNewswire | +0.62% | -0.17% | |
| Collegium Announces Poster Presentations at the American Academy of Child & Adolescent Psychiatry and Neuroscience Education Institute Conferences | Press release | GlobeNewswire | +0.62% | +1.30% | |
| Collegium to Celebrate 10-Year Anniversary with Nasdaq Opening Bell Ringing | Press release | GlobeNewswire | -0.50% | -0.37% | |
| Collegium to Participate in Upcoming Investor Conferences | Press release | GlobeNewswire | -0.28% | -1.64% | |
| Collegium to Present Nine Real-World Data Posters at PAINWeek 2025 Annual Meeting | Press release | GlobeNewswire | -0.08% | -0.59% | |
| Collegium Reports Second Quarter 2025 Financial Results; Raises 2025 Outlook | Press release | GlobeNewswire | +4.57% | +4.64% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the COLL section they belong to.
Where else COLL is measured.
COLL earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| MYOS RENS TECH INC COMMON (MYOS) | 334 | 0.00% | 43% |
| Actelis Networks, Inc. (ASNS) | 331 | -0.83% | 36% |
| BG MEDICINE INC (BGMD) | 329 | 0.00% | 39% |
| IQVIA Holdings, Inc. (IQV) | 329 | +0.02% | 51% |
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 Healthcare names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Collegium Pharmaceutical, Inc.'s median reaction calculated?
Every labeled COLL 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 330 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. 56% of COLL'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 COLL'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.