Form 13F security

OTTR · OTTER TAIL CORP

Class EQUITY

As filed on Form 13F — long US-listed positions only. No shorts, cash, bonds, or non-13F assets appear here.

Filed up to 45 days after quarter end; holdings may have changed since.

Tracked managers holding it

Share and principal positions

ManagerQuarterValue% of portfolioSH/PRN qtyPut/call
GAMCO INVESTORS, INC. ET AL2026-06-30$24M0.2%SH 264,798
Bridgewater Associates, LP2026-06-30$0.8M<0.1%SH 8,549

Total $25M across 2 of 69 managers.

Sums are across tracked reports, not unique economic ownership.

Filed rows (2) — as filed
ManagerClassPut/callValue% of portfolioSH/PRN qtySource
GAMCO INVESTORS, INC. ET ALEQUITY$24M0.2%SH 264,7980001140361-26-032508
Bridgewater Associates, LPCOM$0.8M<0.1%SH 8,5490001350694-26-000003