AMC GLOBAL MEDIA AND SPHERE ENTERTAINMENT ANNOUNCE EXPANDED SEASONAL PARTNERSHIP OPPORTUNITIES

Sphere's Annual December Celebration "Sphere of Cheer" Returns with Integration to Include AMC's "Best Christmas Ever" Last Year's Successful Collaboration, "Sphere of Fear" and "FearFest" to Return in October

NEW YORK, NY and LAS VEGAS, NV - April 29, 2026 - AMC Global Media and Sphere Entertainment Co. (NYSE: SPHR) are expanding their seasonal collaboration to include partnership opportunities combining Sphere's annual Exosphere holiday celebration "Sphere of Cheer" with AMC's annual "Best Christmas Ever" December programming. Built on the most popular holiday classic films and specials, "Best Christmas Ever" drives peak viewership on AMC and across the company's networks and streaming services. Following last year's successful debut collaboration, the companies will partner again for a Halloween-themed multi-platform celebration throughout October, timed to their annual "Sphere of Fear" and "FearFest" events.

In December, the celebration will kick off with a festive moment bringing global audiences together. AMC Global Media will collaborate with Sphere Entertainment to secure branded activations on the Exosphere, the world's largest LED screen, with custom content created by Sphere Studios, the in-house team driving technological and creative innovation. The content will also be displayed throughout AMC's "Best Christmas Ever" programming across AMC platforms.

"After a successful first-ever Halloween collaboration with Sphere last year across Sphere of Fear and FearFest, we knew the next step was to go even bigger," said Mike DiGiacomo, head of integrated marketing and Content Room for AMC Global Media. "This year, we're expanding the partnership with a full-month holiday celebration all December on Exosphere and across our platforms, timed to Best Christmas Ever - our biggest programming moment of the year. From FearFest and a full October of Halloween and horror to the world's first Sphere and Best Christmas Ever crossover, we are creating unique opportunities for brands to connect with highly engaged fandoms during our two biggest seasonal moments."

"AMC and Sphere are both powerful platforms for bringing people together around meaningful moments," said Marcus Ellington, Executive Vice President, Ad Sales and Sponsorships, Sphere. "This partnership demonstrates how brands can leverage Sphere's technology and global reach to amplify their message in new ways, and we look forward to creating high-impact activations for brands to connect with audiences around Halloween and during the holiday season."

Last year's installment of AMC's beloved "Best Christmas Ever" event attracted 68 million engaged, cross-platform viewers. Through AMC Global Media's in-house branded entertainment studio, Content Room, participating partners will secure co-branded social content with Sphere and cross platform amplification across AMC's linear, digital, and streaming channels during the company's highest-rated annual programming event.

During the holiday season, advertisers can fully surround this showcase through multi-touchpoint opportunities from custom Content Room-produced creative, a cross-platform presence across all "Best Christmas Ever" touchpoints, branded ornaments on the Exosphere, exclusive social and influencer coverage via AMC Global Media, and more for an unforgettable, 360-degree sponsorship.

Last year's first ever collaboration around October's "Sphere of Fear" and "FearFest" programming attracted major sponsors such as Bacardi and Kraft Heinz for full-week Exosphere activations, amplified and complemented on AMC's platforms. Sphere and AMC Global Media are again joining forces around Halloween to offer opportunities to brands to leverage the scary season through fan engagement with "Sphere of Fear" and "FearFest" activations.

About Content Room

Content Room is AMC Global Media's award-winning branded entertainment studio that collaborates with advertising partners to build brand stories and create bespoke experiences across an expanding range of digital, social, and linear platforms. Content Room enables brands to fully tap into the company's premium programming, distinct IP, deep talent roster and filmmaking roots through an array of creative partnership opportunities - from premium branded content and integrations - to franchise and gaming extensions. Content Room is also home to the award-winning digital content studio which produces dozens of original series annually, which expands popular AMC Networks scripted programming for both fans and advertising partners by leveraging the built-in massive series and talent fandoms.

About Sphere Entertainment Co.

Sphere Entertainment Co. is a leader in immersive experiences, technology and media. The Company includes Sphere, an experiential medium powered by advanced technologies. The first Sphere opened in Las Vegas, with plans also announced for Sphere venues in Abu Dhabi and National Harbor. In addition, the Company includes MSG Networks, which operates two regional sports and entertainment networks, MSG Network and MSG Sportsnet, as well as a direct-to-consumer and authenticated streaming product, MSG+, delivering a wide range of live sports content and other programming. More information is available at www.sphereentertainmentco.com.

About AMC Global Media

AMC Global Media (Nasdaq: AMCX) is home to many of the greatest stories and characters in TV and film and the premier destination for passionate and engaged fan communities around the world. The Company creates and curates celebrated series and films across distinct brands and makes them available to audiences everywhere. Its portfolio includes targeted streaming services AMC+, Acorn TV, Shudder, Sundance Now, ALLBLK, HIDIVE and All Reality; cable networks AMC, BBC AMERICA (which includes U.S. distribution and sales responsibilities for BBC News), IFC, SundanceTV and We TV; and film distribution label Independent Film Company. The Company also operates AMC Studios, its in-house studio, production and distribution operation behind acclaimed and fan-favorite original franchises including The Walking Dead Universe and the Anne Rice Immortal Universe. AMC Global Media is headquartered in the United States, with international operations in Iberia, Latin America, Central Europe, the U.K., Australia and New Zealand.

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