MITTELSTAEDT RONALD J

SEC source: 0001562180-23-001462 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208,969

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001415889-23-002236 · form4-02092023_110222.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,651

F1 · shares: Shares issued pursuant to the SkyWest, Inc. Long-Term Incentive Plan.

SEC source: 0001562180-22-001777 · primarydocument.xml · derivative · entry 14

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,243

Underlying: Common Shares · 3,621 shares

Expires not disclosed

F8 · derivative.exercise_date: The deferred restricted share unit award was granted on 2/25/2013 and vested 25% per year over the four-year period following the date of grant

F8 · derivative.expiration_date: The deferred restricted share unit award was granted on 2/25/2013 and vested 25% per year over the four-year period following the date of grant

SEC source: 0001562180-22-001777 · primarydocument.xml · derivative · entry 13

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,057

Underlying: Common Shares · 15,528 shares

Expires not disclosed

F7 · derivative.exercise_date: The deferred restricted share unit award was granted on 2/11/2010 and vested 25% per year over the four-year period following the date of grant.

F7 · derivative.expiration_date: The deferred restricted share unit award was granted on 2/11/2010 and vested 25% per year over the four-year period following the date of grant.

SEC source: 0001562180-22-001777 · primarydocument.xml · derivative · entry 12

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 5,234 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

F6 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 8

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 205,497

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 7

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 207,208

F2 · kind: Represents the conversion of restricted share units into common shares of the Issuer. These restricted share units were previously vested and deferred under the Issuer's Deferred Compensation Plan. They are scheduled to be distributed pursuant to a multi-year installment method election as a result of the participant's transition from Chief Executive Officer of the Issuer to its Executive Chairman. The distribution represents the third of five distributions elected by the participant.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 203,587

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 210,921

F2 · kind: Represents the conversion of restricted share units into common shares of the Issuer. These restricted share units were previously vested and deferred under the Issuer's Deferred Compensation Plan. They are scheduled to be distributed pursuant to a multi-year installment method election as a result of the participant's transition from Chief Executive Officer of the Issuer to its Executive Chairman. The distribution represents the third of five distributions elected by the participant.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 195,393

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 197,989

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-22-001777 · primarydocument.xml · derivative · entry 11

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,200

Underlying: Common Stock · 1,067 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The restricted share units were awarded on February 19, 2021 and vest in four equal annual installments. The common shares are reported in Table 1.

F5 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The restricted share units were awarded on February 19, 2021 and vest in four equal annual installments. The common shares are reported in Table 1.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 192,755

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 193,285

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-22-001777 · primarydocument.xml · derivative · entry 10

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,513

Underlying: Common Shares · 3,513 shares

Expires not disclosed

F4 · derivative.exercise_date: Represents an award of restricted share units. The award shall vest 25% per year over a four-year period following the date of grant.

F4 · derivative.expiration_date: Represents an award of restricted share units. The award shall vest 25% per year over a four-year period following the date of grant.

SEC source: 0001562180-22-001777 · primarydocument.xml · derivative · entry 9

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,512

Underlying: Common Shares · 3,512 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents an award of performance-based restricted share units. The target number of units is presented in the table. Subject to certain continued employment conditions and subject to accelerated vesting in certain circumstances, the number of units that actually vest at the end of the three-year performance period will be 0% to 250% of the scheduled amount, depending on the extent to which the Issuer meets or exceeds certain performance goals at the end of each year during the performance period. The maximum number of units that may vest at the end of the three-year performance period is 8,780 (250% of the target number).

F3 · derivative.expiration_date: Represents an award of performance-based restricted share units. The target number of units is presented in the table. Subject to certain continued employment conditions and subject to accelerated vesting in certain circumstances, the number of units that actually vest at the end of the three-year performance period will be 0% to 250% of the scheduled amount, depending on the extent to which the Issuer meets or exceeds certain performance goals at the end of each year during the performance period. The maximum number of units that may vest at the end of the three-year performance period is 8,780 (250% of the target number).

SEC source: 0001562180-22-001523 · primarydocument.xml · derivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,403

Underlying: Common Shares · 3,402 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 15, 2019 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2019. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table 1.

F3 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 15, 2019 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2019. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table 1.

SEC source: 0001562180-22-001523 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 192,218

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001523 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 193,902

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-22-001523 · primarydocument.xml · derivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,325

Underlying: Common Shares · 663 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 14, 2020 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2020. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table 1.

F2 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 14, 2020 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2020. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table 1.

SEC source: 0001562180-22-001523 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 190,500

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001523 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 190,864

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001179110-22-001187 · edgar.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,289

F1 · shares: Shares issued pursuant to the SkyWest, Inc. Long-Term Incentive Plan.

SEC source: 0001562180-21-001628 · primarydocument.xml · derivative · entry 9

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,864

Underlying: Common Shares · 3,622 shares

Expires not disclosed

F5 · derivative.exercise_date: The deferred restricted share unit award was granted on 2/25/2013 and vested 25% per year over the four-year period following the date of grant.

F5 · derivative.expiration_date: The deferred restricted share unit award was granted on 2/25/2013 and vested 25% per year over the four-year period following the date of grant.

F2 · derivative.underlying_shares: Represents the conversion of restricted share units into common shares of the Issuer. These restricted share units were previously vested and deferred under the Issuer's Deferred Compensation Plan. They are scheduled to be distributed pursuant to a multi-year installment method election as a result of the participant's transition from Chief Executive Officer of the Issuer to its Executive Chairman. The distribution represents the first of five distributions elected by the participant.

SEC source: 0001562180-21-001628 · primarydocument.xml · derivative · entry 8

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,585

Underlying: Common Shares · 15,528 shares

Expires not disclosed

F4 · derivative.exercise_date: The deferred restricted share unit award was granted on 2/11/2010 and vested 25% per year over the four-year period following the date of grant.

F4 · derivative.expiration_date: The deferred restricted share unit award was granted on 2/11/2010 and vested 25% per year over the four-year period following the date of grant.

F2 · derivative.underlying_shares: Represents the conversion of restricted share units into common shares of the Issuer. These restricted share units were previously vested and deferred under the Issuer's Deferred Compensation Plan. They are scheduled to be distributed pursuant to a multi-year installment method election as a result of the participant's transition from Chief Executive Officer of the Issuer to its Executive Chairman. The distribution represents the first of five distributions elected by the participant.

SEC source: 0001562180-21-001628 · primarydocument.xml · derivative · entry 7

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 6,220 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 24, 2017 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2017. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

F3 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 24, 2017 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2017. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

SEC source: 0001562180-21-001628 · primarydocument.xml · nonDerivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 190,201

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-21-001628 · primarydocument.xml · nonDerivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 191,912

F2 · kind: Represents the conversion of restricted share units into common shares of the Issuer. These restricted share units were previously vested and deferred under the Issuer's Deferred Compensation Plan. They are scheduled to be distributed pursuant to a multi-year installment method election as a result of the participant's transition from Chief Executive Officer of the Issuer to its Executive Chairman. The distribution represents the first of five distributions elected by the participant.

SEC source: 0001562180-21-001628 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,290

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-21-001628 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 195,624

F2 · kind: Represents the conversion of restricted share units into common shares of the Issuer. These restricted share units were previously vested and deferred under the Issuer's Deferred Compensation Plan. They are scheduled to be distributed pursuant to a multi-year installment method election as a result of the participant's transition from Chief Executive Officer of the Issuer to its Executive Chairman. The distribution represents the first of five distributions elected by the participant.

SEC source: 0001562180-21-001628 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 180,096

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-21-001628 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182,247

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-21-001451 · primarydocument.xml · derivative · entry 11

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 10,484 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: Represents the conversion upon vesting of a performance-based restricted share unit award into common shares of the Issuer. The award was granted on February 20, 2018 and contained performance goals that the Issuer achieved over the three-year performance period from January 1, 2018 to December 31, 2020. The number of earned award units that vested at the end of the three-year performance period, as determined by the Compensation Committee of the Issuer's Board of Directors, was 93% of the target number of shares subject to the award. The common shares are reported on Table 1.

F6 · derivative.expiration_date: Represents the conversion upon vesting of a performance-based restricted share unit award into common shares of the Issuer. The award was granted on February 20, 2018 and contained performance goals that the Issuer achieved over the three-year performance period from January 1, 2018 to December 31, 2020. The number of earned award units that vested at the end of the three-year performance period, as determined by the Compensation Committee of the Issuer's Board of Directors, was 93% of the target number of shares subject to the award. The common shares are reported on Table 1.

SEC source: 0001562180-21-001451 · primarydocument.xml · derivative · entry 10

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,234

Underlying: Common Shares · 5,235 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

F5 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

SEC source: 0001562180-21-001451 · primarydocument.xml · derivative · entry 9

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 42,571 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The restricted share units were awarded on February 20, 2018 and vest in three equal annual installments. The common shares are reported in Table I.

F4 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The restricted share units were awarded on February 20, 2018 and vest in three equal annual installments. The common shares are reported in Table I.

SEC source: 0001562180-21-001451 · primarydocument.xml · nonDerivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 176,027

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-21-001451 · primarydocument.xml · nonDerivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 196,007

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-21-001451 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 153,436

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-21-001451 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,634

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-21-001451 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,150

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-21-001451 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,746

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-21-001451 · primarydocument.xml · derivative · entry 8

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,267

Underlying: Common Shares · 4,267 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents an award of performance-based restricted share units. The target number of units is presented in the table. Subject to certain continued employment conditions and subject to accelerated vesting in certain circumstances, the number of units that actually vest at the end of the three-year performance period will be 0% to 250% of the scheduled amount, depending on the extent to which the Issuer meets or exceeds certain performance goals during the performance period. The maximum number of units that may vest at the end of the three-year performance period is 10,667 (250% of the target number).

F3 · derivative.expiration_date: Represents an award of performance-based restricted share units. The target number of units is presented in the table. Subject to certain continued employment conditions and subject to accelerated vesting in certain circumstances, the number of units that actually vest at the end of the three-year performance period will be 0% to 250% of the scheduled amount, depending on the extent to which the Issuer meets or exceeds certain performance goals during the performance period. The maximum number of units that may vest at the end of the three-year performance period is 10,667 (250% of the target number).

SEC source: 0001562180-21-001451 · primarydocument.xml · derivative · entry 7

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,267

Underlying: Common Shares · 4,267 shares

Expires not disclosed

F2 · derivative.exercise_date: Represents an award of restricted share units. The award shall vest 25% per year over a four-year period following the date of grant.

F2 · derivative.expiration_date: Represents an award of restricted share units. The award shall vest 25% per year over a four-year period following the date of grant.

SEC source: 0001562180-21-001212 · primarydocument.xml · derivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,805

Underlying: Common Shares · 3,403 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 15, 2019 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2019. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table 1.

F3 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 15, 2019 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2019. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table 1.

SEC source: 0001562180-21-001212 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 145,511

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-21-001212 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146,621

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-21-001212 · primarydocument.xml · derivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,988

Underlying: Common Shares · 662 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 14, 2020 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2020. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table 1.

F2 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 14, 2020 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2020. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table 1.

SEC source: 0001562180-21-001212 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 143,218

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-21-001212 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 143,473

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001179110-21-001750 · edgar.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,236

F1 · shares: Shares issued pursuant to the SkyWest, Inc. Long-Term Incentive Plan.