Bruce Springsteen’s blockbuster catalog sale to Sony Music Group this week also established a new player in rights acquisitions. Investment firm Eldridge Industries, which partnered with Sony to finance the purchase of Springsteen’s publishing, now holds a stake one of the industry’s most coveted catalogs — around which it can build an attractive portfolio. Eldridge Industries is a private investment firm with holdings in tech, media, retail, entertainment and other sectors. Co-founded in 2015 by Todd Boehly, a former president at Guggenheim Partners, Eldridge investments include the Los Angeles Dodgers baseball team, sports gambling company DraftKings, private jet provider Flexjet and personal finance app Truebill, among others. Eldridge owns a stake in P-MRC, a joint venture of MRC and P...