MITTELSTAEDT RONALD J

SEC source: 0001562180-20-005503 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 142,811

SEC source: 0001562180-20-001757 · primarydocument.xml · derivative · entry 12

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,486

Underlying: Common Shares · 3,622 shares

Expires not disclosed

F6 · 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

F6 · 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: 0001562180-20-001757 · primarydocument.xml · derivative · entry 11

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,113

Underlying: Common Shares · 15,528 shares

Expires not disclosed

F5 · 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

F5 · 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: 0001562180-20-001757 · primarydocument.xml · derivative · entry 10

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 23,982 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 a performance-based restricted share unit award into common shares of the Issuer. The award was granted on February 24, 2017 and contained performance goals that the Issuer achieved over the three-year performance period from January 1, 2017 to December 31, 2019. 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 179% of the target number of shares subject to the award. The common shares are reported on Table 1.

F4 · 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 24, 2017 and contained performance goals that the Issuer achieved over the three-year performance period from January 1, 2017 to December 31, 2019. 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 179% of the target number of shares subject to the award. The common shares are reported on Table 1.

SEC source: 0001562180-20-001757 · primarydocument.xml · derivative · entry 9

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,220

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: 0001562180-20-001757 · primarydocument.xml · nonDerivative · entry 8

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 191,625

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: 0001562180-20-001757 · primarydocument.xml · nonDerivative · entry 7

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 197,371

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: 0001562180-20-001757 · primarydocument.xml · nonDerivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,843

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: 0001562180-20-001757 · primarydocument.xml · nonDerivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 183,184

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: 0001562180-20-001757 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 179,562

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: 0001562180-20-001757 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,999

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: 0001562180-20-001757 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 165,017

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: 0001562180-20-001757 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 167,465

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: 0001562180-20-001559 · primarydocument.xml · derivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,469

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.

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 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.

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 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: 0001562180-20-001559 · primarydocument.xml · derivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,571

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.

F2 · 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.

F2 · 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: 0001562180-20-001559 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,245

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: 0001562180-20-001559 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 176,900

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: 0001562180-20-001559 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,329

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: 0001562180-20-001559 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,389

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: 0001562180-20-001357 · primarydocument.xml · derivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,208

Underlying: Common Stock · 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.

F4 · 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.

F4 · 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: 0001562180-20-001357 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,155

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: 0001562180-20-001357 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,984

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: 0001562180-20-001357 · primarydocument.xml · derivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,650

Underlying: Common Shares · 2,650 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 over the four-year vesting period will be either 0% or 100% of the scheduled amount, depending on whether the Issuer meets certain performance goals at the end of the first year of the vesting period. If the Issuer meets its performance goals at the end of the first year vesting period, then the units shall vest in four equal annual installments.

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 over the four-year vesting period will be either 0% or 100% of the scheduled amount, depending on whether the Issuer meets certain performance goals at the end of the first year of the vesting period. If the Issuer meets its performance goals at the end of the first year vesting period, then the units shall vest in four equal annual installments.

SEC source: 0001562180-20-001357 · primarydocument.xml · derivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,650

Underlying: Common Shares · 2,650 shares

Expires not disclosed

F2 · 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 6,625 (250% of the target number).

F2 · 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 6,625 (250% of the target number).

SEC source: 0001562180-20-001166 · primarydocument.xml · derivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 13,183 shares

Expires 2046-02-11

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 restricted share units were awarded on February 11, 2016 and have a vesting schedule of 25% per year over a four-year period. The common shares are reported on Table I.

F2 · 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 11, 2016 and have a vesting schedule of 25% per year over a four-year period. The common shares are reported on Table I.

SEC source: 0001562180-20-001166 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,582

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: 0001562180-20-001166 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,303

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: 0001179110-20-001266 · edgar.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,007

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

SEC source: 0001562180-20-001166 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,120

SEC source: 0001562180-19-001412 · primarydocument.xml · derivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,440

Underlying: Common Shares · 6,221 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 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 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 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 1.

SEC source: 0001562180-19-001412 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 139,120

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: 0001562180-19-001412 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 141,568

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: 0001562180-19-001264 · primarydocument.xml · derivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,703

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.

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 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 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 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 1.

SEC source: 0001562180-19-001264 · primarydocument.xml · derivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,142

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.

F2 · 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 1.

F2 · 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 1.

SEC source: 0001562180-19-001264 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,347

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: 0001562180-19-001264 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,407

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: 0001562180-19-001264 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,173

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: 0001562180-19-001264 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,925

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: 0001562180-19-001055 · primarydocument.xml · derivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,610

Underlying: Common Shares · 13,610 shares

Expires not disclosed

F2 · 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 34,025 (250% of the target number).

F2 · 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 34,025 (250% of the target number).

SEC source: 0001562180-19-001055 · primarydocument.xml · derivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,610

Underlying: Common Shares · 13,610 shares

Expires not disclosed

F1 · 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 over the four-year vesting period will be either 0% or 100% of the scheduled amount, depending on whether the Issuer meets certain performance goals at the end of the first year of the vesting period. If the Issuer meets its performance goals at the end of the first year vesting period, then the units shall vest in four equal annual installments.

F1 · 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 over the four-year vesting period will be either 0% or 100% of the scheduled amount, depending on whether the Issuer meets certain performance goals at the end of the first year of the vesting period. If the Issuer meets its performance goals at the end of the first year vesting period, then the units shall vest in four equal annual installments.

SEC source: 0001562180-19-000921 · primarydocument.xml · derivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 16,672 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 restricted share units were awarded on February 12, 2015 and have a vesting schedule of 25% per year over a four-year period. The common shares are reported in Table 1.

F3 · 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 12, 2015 and have a vesting schedule of 25% per year over a four-year period. The common shares are reported in Table 1.

SEC source: 0001562180-19-000921 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 106,354

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: 0001562180-19-000921 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,915

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: 0001562180-19-000921 · primarydocument.xml · derivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,183

Underlying: Common Shares · 13,182 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 restricted share units were awarded on February 11, 2016 and have a vesting schedule of 25% per year over a four-year period. 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 restricted share units were awarded on February 11, 2016 and have a vesting schedule of 25% per year over a four-year period. The common shares are reported on Table 1.

SEC source: 0001562180-19-000921 · primarydocument.xml · nonDerivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,243

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: 0001562180-19-000921 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,644

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: 0001179110-19-001588 · edgar.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,380

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

SEC source: 0001562180-19-000236 · primarydocument.xml · nonDerivative · entry 1

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,462

SEC source: 0001562180-18-003801 · primarydocument.xml · derivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,108

Underlying: Common Shares · 18,109 shares

Expires not disclosed

F4 · 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.

F4 · 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: Reflects the number of restricted share units ("RSUs") no longer deemed to be invested in Issuer's nonqualified deferred compensation plan ("Plan") based on an investment election by Reporting Person on August 29, 2018 to credit value of such RSUs into a measurement fund under the Plan. The value of such RSUs is based on the market value of Issuer's common shares on the election date. Such elections are available during Issuer's open trading windows to participants under the Plan who have attained age 55; and for RSU deferrals such participants have made that (i) are scheduled to be distributed pursuant to a multi-year annual installment method election following participant's separation from service and (ii) have been vested for at least three years prior to the election date, as provided for in Amendment No. 2 to the Plan, dated October 25, 2017. The investment election made by Reporting Person does not alter any distribution dates previously selected under the Plan.

SEC source: 0001562180-18-003801 · primarydocument.xml · derivative · entry 2

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 66,450 shares

Expires not disclosed

F3 · derivative.exercise_date: The deferred restricted share unit award was granted on 2/11/2011 and vested 25% per year over the four-year period following the date of grant.

F3 · derivative.expiration_date: The deferred restricted share unit award was granted on 2/11/2011 and vested 25% per year over the four-year period following the date of grant.

F2 · derivative.underlying_shares: Reflects the number of restricted share units ("RSUs") no longer deemed to be invested in Issuer's nonqualified deferred compensation plan ("Plan") based on an investment election by Reporting Person on August 29, 2018 to credit value of such RSUs into a measurement fund under the Plan. The value of such RSUs is based on the market value of Issuer's common shares on the election date. Such elections are available during Issuer's open trading windows to participants under the Plan who have attained age 55; and for RSU deferrals such participants have made that (i) are scheduled to be distributed pursuant to a multi-year annual installment method election following participant's separation from service and (ii) have been vested for at least three years prior to the election date, as provided for in Amendment No. 2 to the Plan, dated October 25, 2017. The investment election made by Reporting Person does not alter any distribution dates previously selected under the Plan.