Insurers UnitedHealth, Cigna and CVS Health, which bought Aetna last year, are all up in early trading Thursday on the news.
The Trump administration will require pharmaceutical companies to disclose drug prices, which HHS Secretary Alex Azar hopes will push companies to lower drug prices.
As of Wednesday afternoon, 695 cases of measles were confirmed in 22 states, the CDC announced, surpassing the previous high of 667 cases for all of 2014.
The bills, led by Sanders and Reps. Elijah Cummings and Ro Khanna, would permit Health and Human Services Secretary Alex Azar to negotiate lower prices for drugs under Medicare Part D, the federal program for prescription drug benefits.
U.S. Surgeon General Jerome M. Adams on Tuesday declared e-cigarette use among kids an "epidemic" in the U.S. on Tuesday, pointing to companies like Juul as problematic.
This week the Trump administration proposed allowing Medicare Part D pharmacy drug plans to be more selective on branded drugs from what are known as the six special therapeutic classes, which include cancer treatments and H-I-V antiviral drugs.
The Centers for Medicare and Medicaid Services proposed changes to Medicare prescription drug coverage that would allow insurers to stop covering certain "protected" classes of drugs used to treat common ailments like depression, cancer and HIV.
Food and Drug Administration Commissioner Scott Gottlieb outlined a slew of policies, including restrictions on sales of flavored e-cigarettes, and essentially threatened to pull products from the market if manufacturers do not follow them.
Health care has emerged as a key issue in both congressional and state elections this year.
The Trump administration is battling rising health costs by going after higher prices.
Speaking from the Brookings Institution in Washington, Azar says that pharmaceutical companies cannot stand by and defend the status quo on drug pricing.
The Food and Drug Administration earlier this week threatened to pull e-cigarettes from shelves if manufacturers do not control teen use.
Gottlieb makes his comments a day after the FDA ordered Juul and four other vaping brands to submit plans to discourage teen use of their products within 60 days.
U.S. Health and Human Services Secretary Alex Azar said it was within his agency's power to eliminate rebates on prescription drug purchases.
CVS says it returns about 98 percent of rebates to its customers. It expects to keep about $300 million this year, representing about 3 percent of its annual adjusted earnings per share.
The Centers for Medicare & Medicaid Services will allow Medicare Advantage plans to negotiate prices of medicines covered under Medicare Part B, which covers drugs typically administered by a physician.
Shares of Health Insurance Innovations and eHealth rose after the Trump administration issued a final rule that eases restrictions on short-term health plans under the Affordable Care Act.
Insurers will be able to start selling short-term coverage that's cheaper and less comprehensive than Obamacare plans, starting in October.
Pfizer found itself at the center of the price debate earlier this month when President Donald Trump publicly condemned Pfizer for raising the price of some of its drugs.
Investors welcome Lilly's decision to file an initial public offering for its Elanco animal health unit.