My take is short positions do not need to be disclosed, so this is strictly long ownership. Many of these institutional investors can/will allow their shares to be borrowed by shorts, although according to the latest SEC data Skul had over 1.7M shares that were shorted in April alone where the party who shorted the stock never actually borrowed the shares and therefore failed to deliver. Will be interesting to see how many shares are shorted in May with failure to deliver. Data for May 15 comes out June 1. There's a lot of press around this topic of late and wouldn't be surprised if banks cracking down and harder to short with failure to deliver.