Boeing is to pay out $200m (£177.5m) over charges that it misled investors about two fatal 737 Max crashes.
The US stock market regulator said the aviation giant and its former chief executive Dennis Muilenburg made false statements about safety issues.
Boeing "put profits over people" in an effort to rehabilitate its image, according to the Securities and Exchange Commission (SEC).
The 737 Max was grounded for 20 months after two crashes killed 346 people.
As part of the settlement Mr Muilenburg will also pay a penalty of $1m.
"In times of crisis and tragedy, it is especially important that public companies and executives provide full, fair, and truthful disclosures to the markets," SEC chairman Gary Gensler said in a statement.
Boeing and Mr Muilenburg "failed in this most basic obligation," he added.
The SEC's statement also said that both Boeing and Mr Muilenburg did not admit or deny the regulator's findings.
"We will never forget those lost on Lion Air Flight 610 and Ethiopian Airlines Flight 302, and we have made broad and deep changes across our company in response to those accidents," Boeing said in response to the SEC's announcement.
"Fundamental changes that have strengthened our safety processes and oversight of safety issues, and have enhanced our culture of safety, quality, and transparency," the company added.
The SEC said a fund will be established for investors who suffered losses due to the misleading information between 2018 and 2019.
This settlement is largely symbolic. The 737 Max scandal has already cost Boeing tens of billions - another $200m will barely register.
But it does give the SEC the chance to call out Boeing and its ex-chief executive Dennis Muilenburg for making assurances about the plane's safety, when they already knew it had a serious problem - thereby misleading investors.
It's unlikely this will cause Boeing any meaningful harm. Its corporate reputation had already been severely damaged by the affair. The company is now working hard to restore it, and regain public and investor confidence.
For Mr Muilenberg himself, the financial consequences of the settlement won't be that painful either. He received some $60m in compensation and benefits when he left the company. But the fact that the SEC chose to charge him personally sends out a powerful signal.
There have been criticisms in some quarters that the ex-boss has not been properly held to account for his role in the affair. On this occasion, though, the finger has been pointed squarely in his direction.
On 29 October 2018, Lion Air Flight 610 crashed into the Java Sea 13 minutes after taking off from Jakarta's Soekarno-Hatta International Airport, killing all 189 passengers and crew.
Less than five months later, Ethiopian Airlines Flight 302, another Boeing 737 Max on its way to Kenya, crashed six minutes after leaving Ethiopia's capital Addis Ababa. All 157 people on board were killed.
The crashes were linked to a flight control system called the "Maneuvering Characteristics Augmentation System" (MCAS) in the Boeing 737 Max.
The SEC said that "after the first crash, Boeing and Mr Muilenburg knew that MCAS posed an ongoing airplane safety issue, but assured the public that the 737 Max was safe to fly.
The crashes have cost Boeing more than $20bn, including payments to families of those killed in the crashes.
In the wake of the incidents, the US Congress passed new legislation reforming how the country's aviation regulator, the Federal Aviation Administration (FAA), certifies new planes.
A small number of trials are expected to start next year to resolve outstanding claims.