The Pittsburgh Pirates traded right-handed pitcher Carson Fulmer to the Seattle Mariners, a move that trims one arm from their pitching depth and adds another wrinkle to a busy stretch of roster shuffling. Alex Stumpf reported the deal.

Fulmer, 32, was with Triple-A Indianapolis before the trade, and the Pirates had already been moving pieces around their system. They traded left-handed relief pitcher Joe La Sorsa to the Boston Red Sox on June 4, then promoted Khristian Curtis, Derek Diamond and Jaden Woods from Double-A Altoona to Indianapolis. That left Fulmer as the next name to move, even though he was not on Pittsburgh’s 40-man roster.

The lack of a return announced yet is the part that leaves the deal hanging in the air. Cash considerations are believed to be the likely return, but the Pirates have not said so publicly, and for now the transaction is more about clearing space than bringing back a clearly defined asset.

That fits the larger pattern in Pittsburgh, where the club has been making a string of farm-system moves and shifting pitchers to where it sees fit. Moving on from La Sorsa and Fulmer opens room for other arms to push forward, and it also reflects how quickly the organization is reworking its depth chart around Triple-A Indianapolis.

Fulmer’s path makes the move feel even more final. He had four stints in the Pirates organization and never made a major league appearance for them, which makes this trade less a change in role than the end of a repeated try. The Pirates have now sent him elsewhere, and the one detail still missing — the exact return — is the one that will determine how much this transaction matters beyond roster bookkeeping.