Collegium Pharmaceutical Inc
NASDAQ:COLL
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During the last 3 months Collegium Pharmaceutical Inc insiders have not bought any shares, and sold 2.6m USD worth of shares. The stock price has dropped by 31% over this period (open performance analysis).
The last transaction was made on
Mar 18, 2026
by
Dieter David
, who
sold
488.1k USD
worth of 
COLL shares.
During the last 3 months Collegium Pharmaceutical Inc insiders have not bought any shares, and sold 2.6m USD worth of shares. The stock price has dropped by 31% over this period (open performance analysis).
The last transaction was made on
Mar 18, 2026
by
Dieter David
, who
sold
488.1k USD
worth of COLL shares.
Collegium Pharmaceutical Inc
Glance View
Collegium Pharmaceutical, Inc. operates as a pharmaceutical company. The company is headquartered in Stoughton, Massachusetts and currently employs 152 full-time employees. The company went IPO on 2015-05-07. Collegium is a diversified, specialty pharmaceutical company committed to improving the lives of people living with serious medical conditions. The firm's product portfolio includes Xtampza ER, an abuse-deterrent, extended-release, oral formulation of oxycodone; and Nucynta ER and Nucynta IR (Nucynta Products), which are extended-release (ER) and immediate-release (IR) formulations of tapentadol. Xtampza ER is formulated using its abuse-deterrent technology platform, DETERx. Xtampza ER is for the management of pain severe enough to require daily, around-the-clock, long-term opioid treatment. Nucynta ER is indicated for the management of pain severe enough to require daily, around-the-clock, long-term opioid treatment, including neuropathic pain. Nucynta IR is indicated for the management of acute pain severe enough to require an opioid analgesic.
What is Insider Trading?
Insider trading refers to the buying or selling of a company’s stock by individuals with access to non-public, material information about the company.
While legal insider trading occurs when insiders follow disclosure rules, illegal insider trading involves trading based on confidential information and is prohibited by law.
Why is Insider Trading Important?
It isn't a coincidence that corporate executives seem to always buy at the right times. After all, they have access to every bit of company information you could ever want.
However, the fact that company executives have unique insights doesn't mean that individual investors are always left in the dark. Insider trading data is out there for all who want to use it.
Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.
