OTTR insider transactions

SEC Form 4 filed by Wahlund Todd R

SEC Form 4 filed by Rogelstad Timothy J

SEC Form 4 filed by Smestad Jennifer O.

SEC Form 4 filed by Nelson Tyler J

SEC Form 3 filed by new insider Nelson Tyler J

SEC Form 4 filed by Johnson Kathryn O

SEC Form 4 filed by Ludford Mary E

SEC Form 4 filed by Erickson John D

SEC Form 4 filed by Crain Jeanne H

SEC Form 4 filed by Webb Thomas J

SEC Form 4 filed by Rasche Steven P

SEC Form 4 filed by Clark Christopher B

SEC Form 4 filed by Lebeau Michael E

SEC Form 4 filed by Partain Nathan I

SEC Form 4 filed by Wahlund Todd R

Sr VP, Manufacturing Platform Abbott John S was granted 8,400 shares and covered exercise/tax liability with 4,209 shares, increasing direct ownership by 9% to 50,896 units (SEC Form 4)

Sr VP, Electric Platform Rogelstad Timothy J was granted 8,400 shares and covered exercise/tax liability with 4,212 shares, increasing direct ownership by 7% to 61,080 units (SEC Form 4)

President & CEO Macfarlane Charles S covered exercise/tax liability with 23,515 shares and was granted 47,700 shares, increasing direct ownership by 11% to 251,597 units (SEC Form 4)

VP, Human Resources Knutson Paul L was granted 3,600 shares and covered exercise/tax liability with 1,592 shares, increasing direct ownership by 9% to 24,983 units (SEC Form 4)

VP, General Council & Corp Sec Smestad Jennifer O. was granted 6,000 shares and covered exercise/tax liability with 3,031 shares, increasing direct ownership by 18% to 19,137 units (SEC Form 4)

SEC Form 4 filed by Chief Financial Officer Wahlund Todd R

Chief Financial Officer Wahlund Todd R converted options into 675 shares and covered exercise/tax liability with 119 shares, increasing direct ownership by 6% to 10,029 units (SEC Form 4)

Sr VP, Electric Platform Rogelstad Timothy J converted options into 1,625 shares and covered exercise/tax liability with 763 shares, increasing direct ownership by 2% to 56,892 units (SEC Form 4)

President & CEO Macfarlane Charles S covered exercise/tax liability with 4,277 shares and converted options into 9,125 shares, increasing direct ownership by 2% to 227,412 units (SEC Form 4)

Sr VP, Manufacturing Platform Abbott John S converted options into 1,625 shares and covered exercise/tax liability with 763 shares, increasing direct ownership by 2% to 46,705 units (SEC Form 4)

VP, Human Resources Knutson Paul L converted options into 700 shares and covered exercise/tax liability with 279 shares, increasing direct ownership by 3% to 23,254 units (SEC Form 4)

VP, General Council & Corp Sec Smestad Jennifer O. converted options into 1,150 shares and covered exercise/tax liability with 541 shares, increasing direct ownership by 4% to 16,168 units (SEC Form 4)

New insider Rasche Steven P claimed ownership of 101 shares (SEC Form 3)

SEC Form 3 filed by new insider Clark Christopher B

Director Fritze Steven L was granted 1,700 shares, increasing direct ownership by 6% to 30,533 units (SEC Form 4)

Director Johnson Kathryn O was granted 1,700 shares, increasing direct ownership by 6% to 27,953 units (SEC Form 4)

Director Crain Jeanne H was granted 1,700 shares, increasing direct ownership by 46% to 5,429 units (SEC Form 4)

Director Partain Nathan I was granted 2,200 shares, increasing direct ownership by 34% to 8,741 units (SEC Form 4)

Director Erickson John D was granted 1,700 shares (SEC Form 4)

Director Lebeau Michael E was granted 1,700 shares, increasing direct ownership by 28% to 7,800 units (SEC Form 4)

Director Ludford Mary E was granted 1,700 shares, increasing direct ownership by 46% to 5,429 units (SEC Form 4)

Director Webb Thomas J was granted 1,700 shares, increasing direct ownership by 12% to 16,100 units (SEC Form 4)

Chief Financial Officer Wahlund Todd R exercised 600 shares at a strike of $75.39 and covered exercise/tax liability with 308 shares, increasing direct ownership by 3% to 9,038 units (SEC Form 4)

President & CEO Macfarlane Charles S was granted 41,440 shares and covered exercise/tax liability with 20,435 shares, increasing direct ownership by 10% to 221,495 units (SEC Form 4)

Sr VP, Electric Platform Rogelstad Timothy J was granted 7,560 shares and covered exercise/tax liability with 3,801 shares, increasing direct ownership by 7% to 55,998 units (SEC Form 4)

Sr VP, Manufacturing Platform Abbott John S was granted 7,560 shares and covered exercise/tax liability with 3,798 shares, increasing direct ownership by 9% to 45,843 units (SEC Form 4)

VP, Human Resources Knutson Paul L was granted 3,080 shares and covered exercise/tax liability with 1,390 shares, increasing direct ownership by 8% to 22,530 units (SEC Form 4)

VP, General Council & Corp Sec Smestad Jennifer O. was granted 5,320 shares and covered exercise/tax liability with 2,633 shares, increasing direct ownership by 21% to 15,556 units (SEC Form 4)

SEC Form 4 filed by Chief Financial Officer Wahlund Todd R

Chief Financial Officer Wahlund Todd R converted options into 300 shares and covered exercise/tax liability with 164 shares, increasing direct ownership by 2% to 8,708 units (SEC Form 4)

President & CEO Macfarlane Charles S converted options into 9,525 shares and covered exercise/tax liability with 4,464 shares, increasing direct ownership by 3% to 200,490 units (SEC Form 4)

Sr VP, Electric Platform Rogelstad Timothy J covered exercise/tax liability with 833 shares and converted options into 1,775 shares, increasing direct ownership by 2% to 52,239 units (SEC Form 4)

VP, General Council & Corp Sec Smestad Jennifer O. converted options into 1,250 shares and covered exercise/tax liability with 683 shares, increasing direct ownership by 5% to 12,869 units (SEC Form 4)

VP, Human Resources Knutson Paul L converted options into 775 shares and covered exercise/tax liability with 310 shares, increasing direct ownership by 2% to 20,840 units (SEC Form 4)

Sr VP, Manufacturing Platform Abbott John S converted options into 1,775 shares and covered exercise/tax liability with 833 shares, increasing direct ownership by 2% to 42,081 units (SEC Form 4)

VP, General Council & Corp Sec Smestad Jennifer O. sold $354,960 worth of shares (4,000 units at $88.74) (SEC Form 4)

Knutson Paul L sold $362,640 worth of shares (4,000 units at $90.66) (SEC Form 4)

Wahlund Todd R exercised 550 shares at a strike of $87.02 and covered exercise/tax liability with 223 shares, increasing direct ownership by 4% to 8,182 units (SEC Form 4)

Erickson John D was granted 1,500 shares, increasing direct ownership by 92% to 3,132 units (SEC Form 4)

Partain Nathan I was granted 2,000 shares, increasing direct ownership by 46% to 6,389 units (SEC Form 4)

Lebeau Michael E was granted 1,700 shares, increasing direct ownership by 39% to 6,100 units (SEC Form 4)

Fritze Steven L was granted 1,700 shares, increasing direct ownership by 6% to 28,833 units (SEC Form 4)

Johnson Kathryn O was granted 1,700 shares, increasing direct ownership by 7% to 26,253 units (SEC Form 4)

Webb Thomas J was granted 1,700 shares, increasing direct ownership by 13% to 14,400 units (SEC Form 4)

Crain Jeanne H was granted 1,700 shares, increasing direct ownership by 87% to 3,643 units (SEC Form 4)