// company-profile
Otter Tail Corp
OTTRExchangeNasdaqSectorElectric ServicesInc.MNFilings76Insiders19
// api This Otter Tail Corp insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Otter Tail Corp insiders bought $41K (15 transactions) and sold $17K (1 transaction).
- Most active insider: Wahlund Todd R with 4 transactions totaling $58K.
- Largest single purchase: $41K by Wahlund Todd R on Apr 8, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Otter Tail Corp as of 2026-03-31
Total reported AUM
$2.12B
QoQ change
+24.9%
Reporting period
2026-03-31
#1
BlackRock, Inc.
CIK 2012383
$382.0M
4.4M shares
#2
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$163.8M
1.9M shares
#3
STATE STREET CORP
CIK 93751
$137.7M
1.6M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Apr 13, 2026 | ERICKSON JOHN D | OTTR | Award | 1,500 | — | — |
| Apr 13, 2026 | Ludford Mary E | OTTR | Award | 1,500 | — | — |
| Apr 13, 2026 | PARTAIN NATHAN I | OTTR | Award | 2,000 | — | — |
| Apr 13, 2026 | Nelson Tyler J | OTTR | Award | 800 | $0.00 | $0K |
| Apr 13, 2026 | Wahlund Todd R | OTTR | Award | 300 | $0.00 | $0K |
45 more transactions hidden
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