The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Dec 15, 2025 | Goldfarb George G | Director | Disposed to issuer(D) | 25K | $67.00 | $1.7M |
| Dec 15, 2025 | Goldfarb George G | Director | Disposed to issuer(D) | 1K | $67.00 | $67K |
| Dec 15, 2025 | Hoolihan James J | Director | Disposed to issuer(D) | 30K | $67.00 | $2.0M |
| Dec 15, 2025 | Ludlow Madeleine W | Director | Disposed to issuer(D) | 5K | $67.00 | $348K |
| Dec 15, 2025 | Ludlow Madeleine W | Director | Disposed to issuer(D) | 21K | $67.00 | $1.4M |
| Dec 15, 2025 | Matthews Charles R | Director | Disposed to issuer(D) | 250 | $67.00 | $17K |
| Dec 15, 2025 | Matthews Charles R | Director | Disposed to issuer(D) | 250 | $67.00 | $17K |
| Dec 15, 2025 | Matthews Charles R | Director | Disposed to issuer(D) | 7K | $67.00 | $486K |
| Dec 15, 2025 | Nestegard Susan K | Director | Disposed to issuer(D) | 15K | $67.00 | $997K |
| Dec 15, 2025 | Neve Douglas C | Director | Disposed to issuer(D) | 20K | $67.00 | $1.3M |
| Dec 15, 2025 | Neve Douglas C | Director | Disposed to issuer(D) | 12K | $67.00 | $777K |
| Dec 15, 2025 | Nick Barbara A | Director | Disposed to issuer(D) | 14K | $67.00 | $913K |
| Dec 15, 2025 | Powers Robert P | Director | Disposed to issuer(D) | 15K | $67.00 | $1.0M |
| Dec 15, 2025 | Thomas Charlene A | Director | Disposed to issuer(D) | 8K | $67.00 | $557K |
| Dec 15, 2025 | Owen Bethany M | Chair, President & CEO, Director | Disposed to issuer(D) | 26K | $67.00 | $1.7M |
| Dec 15, 2025 | Owen Bethany M | Chair, President & CEO, Director | Disposed to issuer(D) | 18K | — | — |
| Dec 15, 2025 | Owen Bethany M | Chair, President & CEO, Director | Disposed to issuer(D) | 9K | $67.00 | $598K |
| Dec 15, 2025 | Anderson Colin B | VP-ALLETE Chf Acct Offr & Cont | Disposed to issuer(D) | 519 | $67.00 | $35K |
| Dec 15, 2025 | Anderson Colin B | VP-ALLETE Chf Acct Offr & Cont | Disposed to issuer(D) | 2K | — | — |
| Dec 15, 2025 | Anderson Colin B | VP-ALLETE Chf Acct Offr & Cont | Disposed to issuer(D) | 352 | $67.00 | $24K |
| Dec 15, 2025 | Johnson Nicole Renee | VP; Pres.- ACE | Disposed to issuer(D) | 7K | $67.00 | $498K |
| Dec 15, 2025 | Johnson Nicole Renee | VP; Pres.- ACE | Disposed to issuer(D) | 68 | $67.00 | $5K |
| Dec 15, 2025 | Johnson Nicole Renee | VP; Pres.- ACE | Disposed to issuer(D) | 4K | — | — |
| Dec 15, 2025 | Johnson Nicole Renee | VP; Pres.- ACE | Disposed to issuer(D) | 6K | $67.00 | $382K |
| Dec 15, 2025 | Padilla Julie L | VP, Ch Legal Offcr & Secretary | Disposed to issuer(D) | 2K | — | — |
| Dec 15, 2025 | Padilla Julie L | VP, Ch Legal Offcr & Secretary | Disposed to issuer(D) | 210 | $67.00 | $14K |
| Dec 15, 2025 | Scissons Jeffrey John | VP CFO & Corp Treasurer | Disposed to issuer(D) | 2K | $67.00 | $107K |
| Dec 15, 2025 | Scissons Jeffrey John | VP CFO & Corp Treasurer | Disposed to issuer(D) | 2K | $67.00 | $112K |
| Dec 15, 2025 | Scissons Jeffrey John | VP CFO & Corp Treasurer | Disposed to issuer(D) | 3K | — | — |
| Dec 15, 2025 | Skelton Joshua Jon | VP; COO-Minnesota Power | Disposed to issuer(D) | 775 | $67.00 | $52K |
| Dec 15, 2025 | Skelton Joshua Jon | VP; COO-Minnesota Power | Disposed to issuer(D) | 3K | — | — |
| Dec 15, 2025 | Skelton Joshua Jon | VP; COO-Minnesota Power | Disposed to issuer(D) | 4K | $67.00 | $291K |
| Dec 15, 2025 | Skelton Joshua Jon | VP; COO-Minnesota Power | Disposed to issuer(D) | 5K | $67.00 | $362K |
| Dec 15, 2025 | Skelton Joshua Jon | VP; COO-Minnesota Power | Disposed to issuer(D) | 5K | $67.00 | $366K |
| Jun 2, 2025 | Thomas Charlene A | Director | Grant(A) | 2K | — | $0 |
| Jun 2, 2025 | Matthews Charles R | Director | Grant(A) | 2K | — | $0 |
| Jun 2, 2025 | Nestegard Susan K | Director | Grant(A) | 2K | — | $0 |
| Jun 2, 2025 | Ludlow Madeleine W | Director | Grant(A) | 2K | — | $0 |
| Jun 2, 2025 | Hoolihan James J | Director | Grant(A) | 2K | — | $0 |
| Jun 2, 2025 | Neve Douglas C | Director | Grant(A) | 2K | — | $0 |
| Jun 2, 2025 | Goldfarb George G | Director | Grant(A) | 2K | — | $0 |
| Jun 2, 2025 | Powers Robert P | Director | Grant(A) | 2K | — | $0 |
| Jun 2, 2025 | Nick Barbara A | Director | Grant(A) | 2K | — | $0 |
| Mar 11, 2025 | Scissons Jeffrey John | VP CFO & Corp Treasurer | Grant(A) | 192 | — | $0 |
| Feb 5, 2025 | Johnson Nicole Renee | VP; Pres.- ACE | Tax withholding(F) | 875 | $65.64 | $57K |
| Feb 5, 2025 | Johnson Nicole Renee | VP; Pres.- ACE | Grant(A) | 1K | — | $0 |
| Feb 5, 2025 | Scissons Jeffrey John | VP & Treasurer | Grant(A) | 670 | — | $0 |
| Feb 5, 2025 | Scissons Jeffrey John | VP & Treasurer | Tax withholding(F) | 434 | $65.64 | $29K |
| Feb 5, 2025 | Morris Steven Wayne | Sr VP & CFO | Grant(A) | 1K | — | $0 |
| Feb 5, 2025 | Morris Steven Wayne | Sr VP & CFO | Tax withholding(F) | 972 | $65.64 | $64K |
| Feb 5, 2025 | Owen Bethany M | Chair, President & CEO, Director | Tax withholding(F) | 3K | $65.64 | $206K |
| Feb 5, 2025 | Owen Bethany M | Chair, President & CEO, Director | Grant(A) | 4K | — | $0 |
| Feb 5, 2025 | Skelton Joshua Jon | VP; COO-Minnesota Power | Grant(A) | 665 | — | $0 |
| Feb 5, 2025 | Skelton Joshua Jon | VP; COO-Minnesota Power | Tax withholding(F) | 690 | $65.64 | $45K |
| Jan 29, 2025 | Padilla Julie L | VP, Ch Legal Offcr & Secretary | Grant(A) | 1K | — | $0 |
| Jan 29, 2025 | Johnson Nicole Renee | VP; Pres.- ACE | Grant(A) | 2K | — | $0 |
| Jan 29, 2025 | Morris Steven Wayne | Sr VP & CFO | Grant(A) | 2K | — | $0 |
| Jan 29, 2025 | Scissons Jeffrey John | VP & Treasurer | Grant(A) | 965 | — | $0 |
| Jan 29, 2025 | Skelton Joshua John | VP; COO-Minnesota Power | Grant(A) | 1K | — | $0 |
| Jan 29, 2025 | Owen Bethany M | Chair, President & CEO, Director | Grant(A) | 7K | — | $0 |
| Sep 19, 2024 | Scissons Jeffrey John | VP & Treasurer | Grant(A) | 196 | — | $0 |
| Jun 3, 2024 | Thomas Charlene A | Director | Grant(A) | 2K | — | $0 |
| Jun 3, 2024 | Neve Douglas C | Director | Grant(A) | 2K | — | $0 |
| Jun 3, 2024 | Powers Robert P | Director | Grant(A) | 2K | — | $0 |
| Jun 3, 2024 | Nick Barbara A | Director | Grant(A) | 2K | — | $0 |
| Jun 3, 2024 | Goldfarb George G | Director | Grant(A) | 2K | — | $0 |
| Jun 3, 2024 | Nestegard Susan K | Director | Grant(A) | 2K | — | $0 |
| Jun 3, 2024 | Ludlow Madeleine W | Director | Grant(A) | 2K | — | $0 |
| Jun 3, 2024 | Matthews Charles R | Director | Grant(A) | 2K | — | $0 |
| Jun 3, 2024 | Hoolihan James J | Director | Grant(A) | 2K | — | $0 |
| Feb 7, 2024 | Skelton Joshua John | VP; COO-Minnesota Power | Tax withholding(F) | 1K | $58.20 | $63K |
| Feb 7, 2024 | Skelton Joshua John | VP; COO-Minnesota Power | Grant(A) | 2K | — | $0 |
| Feb 7, 2024 | Thickens Margaret A | VP, Ch. Legal Ofcr & Secretary | Grant(A) | 4K | — | $0 |
| Feb 7, 2024 | Thickens Margaret A | VP, Ch. Legal Ofcr & Secretary | Tax withholding(F) | 2K | $58.20 | $106K |
| Feb 7, 2024 | Owen Bethany M | Chair, President & CEO, Director | Tax withholding(F) | 7K | $58.20 | $405K |
| Feb 7, 2024 | Owen Bethany M | Chair, President & CEO, Director | Grant(A) | 14K | — | $0 |
| Feb 7, 2024 | Morris Steven Wayne | Sr VP & CFO | Tax withholding(F) | 2K | $58.20 | $106K |
| Feb 7, 2024 | Morris Steven Wayne | Sr VP & CFO | Grant(A) | 4K | — | $0 |
| Feb 7, 2024 | Johnson Nicole Renee | VP; Pres.- ACE | Grant(A) | 4K | — | $0 |
| Feb 7, 2024 | Johnson Nicole Renee | VP; Pres.- ACE | Tax withholding(F) | 2K | $58.20 | $122K |
| Feb 7, 2024 | Cutshall Patrick L | VP & Treasurer | Grant(A) | 4K | — | $0 |
| Feb 7, 2024 | Cutshall Patrick L | VP & Treasurer | Tax withholding(F) | 2K | $58.20 | $107K |
| Jan 25, 2024 | Cutshall Patrick L | VP & Treasurer | Grant(A) | 920 | — | $0 |
| Jan 25, 2024 | Johnson Nicole Renee | VP; Pres.- ACE | Grant(A) | 2K | — | $0 |
| Jan 25, 2024 | Thickens Margaret A | VP, Ch. Legal Ofcr & Secretary | Grant(A) | 1K | — | $0 |
| Jan 25, 2024 | Skelton Joshua John | VP; COO-Minnesota Power | Grant(A) | 920 | — | $0 |
| Jan 25, 2024 | Morris Steven Wayne | Sr VP & CFO | Grant(A) | 2K | — | $0 |
| Jan 25, 2024 | Owen Bethany M | Chair, President & CEO, Director | Grant(A) | 6K | — | $0 |
| Jun 1, 2023 | Matthews Charles R | Director | Grant(A) | 2K | — | $0 |
| Jun 1, 2023 | Nestegard Susan K | Director | Grant(A) | 2K | — | $0 |
| Jun 1, 2023 | Thomas Charlene A | Director | Grant(A) | 2K | — | $0 |
| Jun 1, 2023 | Neve Douglas C | Director | Grant(A) | 2K | — | $0 |
| Jun 1, 2023 | Goldfarb George G | Director | Grant(A) | 2K | — | $0 |
| Jun 1, 2023 | Ludlow Madeleine W | Director | Grant(A) | 2K | — | $0 |
| Jun 1, 2023 | Hoolihan James J | Director | Grant(A) | 2K | — | $0 |
| Jun 1, 2023 | Powers Robert P | Director | Grant(A) | 2K | — | $0 |
| Jun 1, 2023 | Nick Barbara A | Director | Grant(A) | 2K | — | $0 |
| Feb 9, 2023 | Morris Steven Wayne | Sr VP & CFO | Tax withholding(F) | 197 | $59.85 | $12K |
| Feb 9, 2023 | Thickens Margaret A | VP, Ch. Legal Off. & Secretary | Tax withholding(F) | 230 | $59.85 | $14K |
| Feb 9, 2023 | Cutshall Patrick L | VP & Treasurer | Tax withholding(F) | 197 | $59.85 | $12K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-03-29 → 2026-07-14. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).