Final Crew Members Named for World’s First All-Civilian Mission to Space

New Crew Members Representing Prosperity and Generosity Join Hope and Leadership to Complete the Crew Manifest

CAPE CANAVERAL, FL – MARCH 30, 2021 – (BUSINESSWIRE) – Inspiration4, the world’s first all-civilian mission to space, today announced the final two members of the four-person crew that will undertake a historic voyage to the stars later this year. Christopher Sembroski of Everett, WA and Dr. Sian Proctor of Tempe, AZ will join previously announced crew member Hayley Arceneaux under the command of Jared Isaacman. SpaceX’s Falcon 9 rocket will launch the crew aboard a Dragon spacecraft later this year.

The full crew will be introduced publicly today for the first time from historic Launch Complex 39A at Kennedy Space Center in Florida.

Sembroski and Proctor will represent the mission pillars of:

• Prosperity – Dr. Proctor, a 51-year-old entrepreneur, educator, trained pilot and active voice in the space exploration community, was awarded her seat by being selected as the top entrant of an independently judged online business competition that attracted approximately 200 entries and was conducted by the eCommerce platform Shift4Shop.

“This opportunity is proof that hard work and perseverance can pay off in unimaginable ways,” said Dr. Proctor. “I have always believed that I was preparing for something special, and that moment has arrived with Inspiration4.”

Proctor will serve as the Mission Pilot and back up the commander and support related needs throughout the mission.

• Generosity – Sembroski, a 41-year-old aerospace industry employee at Lockheed Martin and United States Air Force veteran, contributed to a special fundraising campaign for St. Jude Children’s Research Hospital® that offered an Inspiration4 seat to a lucky donor after receiving nearly 72,000 entries. Since it was first announced in February, the campaign has raised approximately $113M with new support opportunities to come in the near future, including chances to sign up at www.stjude.org/Inspiration4 and fundraise to qualify for Inspiration4-themed incentive items, special experiences, collectible merchandise, flight-related campaign information and more.

Sembroski will serve as the Mission Specialist and will help manage payload, science experiments, communications to mission control and more.

Inspiration4 is completed by the other mission pillars of Leadership, represented by Isaacman, and Hope, represented by Arceneaux. Isaacman, the 38-year-old founder and CEO of Shift4 Payments (NYSE: FOUR) and a world record-holding pilot, created the Inspiration4 mission and donated the three crew seats to inspire humanity and raise money for the lifesaving mission of St. Jude. Arceneaux is a 29-year-old physician assistant who works at St. Jude Children’s Research Hospital in Memphis, TN and joined Inspiration4 last month. In addition to working at St. Jude, she was treated as a child for bone cancer at the preeminent care and research hospital and vowed to return to serve others. Arceneaux will serve as Medical Officer overseeing medical care and experiments on the mission.

“Inspiration4’s goal is to inspire humanity to support St. Jude here on earth while also seeing new possibilities for human spaceflight,” said Isaacman. “ Each of these outstanding crew members embodies the best of humanity, and I am humbled to lead them on this historic and purposeful mission and the adventure of a lifetime.”

All crew members will undergo commercial astronaut training by SpaceX on the Falcon 9 launch vehicle and Dragon spacecraft – the very same Dragon spacecraft currently attached to the International Space Station supporting the Crew-1 mission. Once Dragon returns the Crew-1 astronauts back home to Earth, the SpaceX team will inspect and refurbish the spacecraft ahead of the Inspiration4 mission. Crew member training will include a specific focus on orbital mechanics, operating in microgravity, zero gravity, and other forms of stress testing. The crew will receive emergency preparedness training, spacesuit and spacecraft ingress and egress exercises, as well as partial- and full-mission simulations.

The mission is being targeted for no earlier than Sept. 15, 2021. It will launch from historic Launch Complex 39A at NASA’s Kennedy Space Center in Florida and will be carefully monitored at every step by SpaceX mission control as the spacecraft orbits the planet every 90 minutes along a customized flight path. The crew is targeting an approximate 540 km orbit, flying further than any human since Hubble, for an expected mission duration of approximately three days. In advance of the mission, the crew is working closely with SpaceX and multiple organizations to identify scientific research opportunities they can support while in orbit. Upon conclusion of the multi-day journey, Dragon will reenter Earth’s atmosphere for a soft water landing off the coast of Florida.

To learn more about Inspiration4 and how to support and follow this historic journey to space, visitwww.Inspiration4.comand follow the mission on social media on Twitter(@inspiration4x), Facebook(@inspiration4mission), Instagram(@inspiration4)and YouTube(@Inspiration4)to receive the latest news on mission training, preparation and timing.

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Media Contact

Brian Bianco

BCW for Inspiration4

media@inspiration4.com

Additional media assets available via Electronic Press Kit

About Shift4Payments

solutions, delivering a complete omnichannel ecosystem that extends beyond payments to include a wide range of commerce-enabling services. The company’s technologies help power over 350 software providers in numerous industries, including hospitality, retail, F&B, ecommerce, lodging, gaming, and many more. The newly launched Shift4Shop platform offers a turnkey ecommerce experience includes a robust website builder, product and order management, customer marketing tools and more. With over 7,000 sales partners, the company securely processed more than $200 billion in payments volume for over 200,000 businesses in 2019. For more information, visit shift4.com.

About St. Jude Children’s Research Hospital®

St. Jude Children’s Research Hospital is leading the way the world understands, treats and defeats childhood cancer and other life-threatening diseases. Its purpose is clear: Finding cures. Saving children.® It is the only National Cancer Institute-designated Comprehensive Cancer Center devoted solely to children. Treatments invented at St. Jude have helped push the overall childhood cancer survival rate from 20 percent to more than 80 percent since the hospital opened more than 50 years ago. St. Jude won’t stop until no child dies from cancer. St. Jude freely shares the discoveries it makes, and every child saved at St. Jude means doctors and scientists worldwide can use that knowledge to save thousands more children. Families never receive a bill from St. Jude for treatment, travel, housing or food – because all a family should worry about is helping their child live. Visit St. Jude Inspire to discover powerful St. Jude stories of hope, strength, love and kindness. Join the St. Jude mission by visiting stjude.org, liking St. Jude on Facebook, following St. Jude on TwitterInstagram and TikTok, and subscribing to its YouTube channel.

Win a Seat on Inspiration4 Sweepstakes:: No Purchase/Donation necessary. Open to legal US residents, 18+. Shift4Shop Inspiration4 Contest:: Open only to Shift4Shop eCommerce hosting and merchant acquiring US customers of Shift4 Payments, LLC; businesses that are customers of Shift4 and the individual who enters on behalf of the business must be a legal US resident, 18+. Both promotions start 4:00PM ET 2/1/21, end 11:59 PM ET 2/28/21. Winner of each must be physically & psychologically fit for training and spaceflight, and must meet the requirements to be admitted into related government facilities. See *Official Rules* for complete details void where prohibited.