Donald Trump's pointed tweets seem to actually be making waves and not just in the form of knee-jerk reactions by investors.

Boeing (BA) - Get Report  and Lockheed Martin (LMT) - Get Report met with the president-elect Wednesday over his critiques of the cost of their government contracts.

Boeing shares rose $1.11, less than a percent, to $158.59 in early trading while Lockheed's were up less than a percent to $252.88.

Boeing, the Seattle-based aircraft maker, for one, will apparently rethink how it will build Air Force One, while Lockheed Martin CEO Marillyn Hewson met with Trump to discuss the Bethesda, Md., company's F-35 fighter jet program. 

After visiting with Trump at his Mar-a-Lago resort in Palm Beach, Fla. Wednesday, Boeing CEO Dennis Muilenberg pledged to keep the price of the Presidential plane below $4 billion.

"I was able to give the president-elect my personal commitment on behalf of the Boeing Company," Muilenberg told reporters at the resort.

In a Dec. 6 tweet, Trump assailed the purported cost of building the plane.

After meeting with Muilenberg, Trump took a far different tone in an exchange with reporters.

"I think we're looking to cut a tremendous amount of money off the price," Trump said.

Air Force budgetary documents show the projected cost of the project to build two planes is expected to approach $3.73 billion over the next 12 years. However, fact-checking site Politifact rated Trump's tweet as "half-true," arguing that he ignored the context that national security costs not directly under Boeing's control are the biggest drivers on the price tag.

A Boeing spokesperson declined to comment beyond what Muilenberg told reporters.

Hewson's company drew the president-elect's wrath on Twitter six days after his Boeing post.

The $400 billion procurement deal for the F-35 was described by Trump as "very, very expensive" Wednesday.

Hewson did not speak to reporters, opting instead to issue a statement through the company.

"I had a productive meeting with President-elect Trump this afternoon. I appreciated the opportunity to discuss the importance of the F-35 program and the progress we've made in bringing the costs down," she said Wednesday. "The F-35 is a critical program to our national security, and I conveyed our continued commitment to delivering an affordable aircraft to our U.S. military and our allies."