TSEOQ

SEC source: 0001179110-17-009531 · edgar.xml · nonDerivative · entry 1

MARTENS PHILIP R · CIK 0001190851 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,392

F1 · shares: Represents ordinary shares issuable pursuant to a restricted stock unit award that will vest in full on the first anniversary of the grant date.

SEC source: 0001179110-17-009536 · edgar.xml · nonDerivative · entry 2

COTE JEFFREY J · CIK 0001196701 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,229

F2 · shares: Represents ordinary shares issuable pursuant to a restricted stock unit award that will vest in full on the first anniversary of the grant date.

SEC source: 0001179110-17-009536 · edgar.xml · nonDerivative · entry 1

COTE JEFFREY J · CIK 0001196701 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,422

F1 · shares: Shares withheld by the Company to pay taxes due following expiration of the applicable restriction period of previously granted restricted stock units.

SEC source: 0001179110-17-009535 · edgar.xml · nonDerivative · entry 1

Johnson KLynne · CIK 0001532447 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,807

F1 · shares: Represents ordinary shares issuable pursuant to a restricted stock unit award that will vest in full on the first anniversary of the grant date.

SEC source: 0001179110-17-009533 · edgar.xml · nonDerivative · entry 2

Misheff Donald T · CIK 0001538453 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,651

F2 · shares: Represents ordinary shares issuable pursuant to a restricted stock unit award that will vest in full on the first anniversary of the grant date.

SEC source: 0001179110-17-009533 · edgar.xml · nonDerivative · entry 1

Misheff Donald T · CIK 0001538453 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,844

F1 · shares: Shares withheld by the Company to pay taxes due following expiration of the applicable restriction period of previously granted restricted stock units.

SEC source: 0000899243-17-017240 · doc4.xml · nonDerivative · entry 2

ZIDE STEPHEN M · CIK 0001212455 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,737

F2 · shares: Represents ordinary shares issuable pursuant to a restricted stock unit award that will vest in full on the first anniversary of the grant date.

SEC source: 0000899243-17-017240 · doc4.xml · nonDerivative · entry 1

ZIDE STEPHEN M · CIK 0001212455 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,930

F1 · shares: Shares withheld by the Company to pay taxes due following expiration of the applicable restriction period of previously granted restricted stock units.

SEC source: 0001179110-17-009081 · edgar.xml · derivative · entry 4

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 429,479

Underlying: Ordinary Shares · 20,000 shares

Expires 2024-02-27

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-009081 · edgar.xml · nonDerivative · entry 3

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,240

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F3 · price: Represents the weighted average sale price for price increments ranging from $67.60 to $67.85, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.

SEC source: 0001179110-17-009081 · edgar.xml · nonDerivative · entry 2

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 243,252

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F2 · price: Represents the weighted average sale price for price increments ranging from $66.60 to $67.55, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) to this Form 4.

SEC source: 0001179110-17-009081 · edgar.xml · nonDerivative · entry 1

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 260,240

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-008597 · edgar.xml · derivative · entry 4

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 449,479

Underlying: Ordinary Shares · 15,000 shares

Expires 2024-02-27

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-008597 · edgar.xml · nonDerivative · entry 3

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,240

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F3 · price: Represents the weighted average sale price for price increments ranging from $65.25 to $65.85, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.

SEC source: 0001179110-17-008597 · edgar.xml · nonDerivative · entry 2

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 249,153

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F2 · price: Represents the weighted average sale price for price increments ranging from $64.25 to $65.20, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) to this Form 4.

SEC source: 0001179110-17-008597 · edgar.xml · nonDerivative · entry 1

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 255,240

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-007296 · edgar.xml · derivative · entry 3

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 464,479

Underlying: Ordinary Shares · 20,000 shares

Expires 2024-02-27

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-007296 · edgar.xml · nonDerivative · entry 2

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,240

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-007296 · edgar.xml · nonDerivative · entry 1

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 260,240

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-006500 · edgar.xml · derivative · entry 3

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 484,479

Underlying: Ordinary Shares · 15,000 shares

Expires 2024-02-27

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-006500 · edgar.xml · nonDerivative · entry 2

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,240

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F2 · price: Represents the weighted average sale price for price increments ranging from $65.80 to $66.60. The reporting person undertakes to provide to Trinseo S.A., any securityholder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001179110-17-006500 · edgar.xml · nonDerivative · entry 1

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 255,240

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-006190 · edgar.xml · derivative · entry 4

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 499,479

Underlying: Ordinary Shares · 20,000 shares

Expires 2024-02-27

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-006190 · edgar.xml · nonDerivative · entry 3

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,240

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F3 · price: Represents the weighted average sale price for price increments ranging from $65.45 to $65.60, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.

SEC source: 0001179110-17-006190 · edgar.xml · nonDerivative · entry 2

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 245,815

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F2 · price: Represents the weighted average sale price for price increments ranging from $64.45 to $65.43, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) to this Form 4.

SEC source: 0001179110-17-006190 · edgar.xml · nonDerivative · entry 1

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 260,240

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-006035 · edgar.xml · derivative · entry 3

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 519,479

Underlying: Ordinary Shares · 15,000 shares

Expires 2024-02-27

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-006035 · edgar.xml · nonDerivative · entry 2

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,240

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F2 · price: Represents the weighted average sale price for price increments ranging from $64.00 to $64.95, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) to this Form 4.

SEC source: 0001179110-17-006035 · edgar.xml · nonDerivative · entry 1

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 255,240

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-004555 · edgar.xml · derivative · entry 4

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 534,479

Underlying: Ordinary Shares · 20,000 shares

Expires 2024-02-27

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-004555 · edgar.xml · nonDerivative · entry 3

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,240

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F3 · price: Represents the weighted average sale price for price increments ranging from $68.55 to $68.95, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.

SEC source: 0001179110-17-004555 · edgar.xml · nonDerivative · entry 2

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 241,240

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

F2 · price: Represents the weighted average sale price for price increments ranging from $69.25 to $70.15, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) to this Form 4.

SEC source: 0001179110-17-004555 · edgar.xml · nonDerivative · entry 1

Pappas Christopher D · CIK 0001428312 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 260,240

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.

F1 · kind: This Form 4 reflects the exercise of stock options and the sale of underlying shares pursuant to a duly adopted 10b5-1 trading plan entered into in accordance with the Issuer's insider trading policy, which provides for periodic stock option exercises as part of a personal liquidity and diversification strategy.

SEC source: 0001179110-17-004267 · edgar.xml · nonDerivative · entry 1

De Leener Pierre-Marie · CIK 0001423137 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By family company

Disclosed balance after: 0

F1 · price: Represents the weighted average sale price for price increments ranging from $70.75 to $70.825, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

SEC source: 0001179110-17-004099 · edgar.xml · derivative · entry 3

Denton E. Jeffery · CIK 0001608369 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,403

Underlying: Ordinary Shares · 15,348 shares

Expires 2024-02-27

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: 0001179110-17-004099 · edgar.xml · nonDerivative · entry 2

Denton E. Jeffery · CIK 0001608369 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,441

F1 · price: Represents the weighted average sale price for price increments ranging from $70.80 to $71.50, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

SEC source: 0001179110-17-004099 · edgar.xml · nonDerivative · entry 1

Denton E. Jeffery · CIK 0001608369 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,789

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: 0001179110-17-004028 · edgar.xml · derivative · entry 5

Chaclas Angelo N. · CIK 0001629821 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,128

Underlying: Ordinary Shares · 7,991 shares

Expires 2025-02-22

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: 0001179110-17-004028 · edgar.xml · derivative · entry 4

Chaclas Angelo N. · CIK 0001629821 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,119

Underlying: Ordinary Shares · 15,780 shares

Expires 2024-02-27

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: 0001179110-17-004028 · edgar.xml · nonDerivative · entry 3

Chaclas Angelo N. · CIK 0001629821 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,480

F1 · price: Represents the weighted average sale price for price increments ranging from $70.80 to $72.00, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

SEC source: 0001179110-17-004028 · edgar.xml · nonDerivative · entry 2

Chaclas Angelo N. · CIK 0001629821 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,251

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: 0001179110-17-004028 · edgar.xml · nonDerivative · entry 1

Chaclas Angelo N. · CIK 0001629821 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,260

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: 0001179110-17-004025 · edgar.xml · nonDerivative · entry 1

Stasse David Phillip · CIK 0001441657 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,678

SEC source: 0001179110-17-004026 · edgar.xml · derivative · entry 5

Leib Ryan J · CIK 0001659260 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,009

Underlying: Ordinary Shares · 810 shares

Expires 2025-02-22

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: 0001179110-17-004026 · edgar.xml · derivative · entry 4

Leib Ryan J · CIK 0001659260 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,819

Underlying: Ordinary Shares · 2,074 shares

Expires 2024-02-27

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: 0001179110-17-004026 · edgar.xml · nonDerivative · entry 3

Leib Ryan J · CIK 0001659260 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,134

SEC source: 0001179110-17-004026 · edgar.xml · nonDerivative · entry 2

Leib Ryan J · CIK 0001659260 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,018

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: 0001179110-17-004026 · edgar.xml · nonDerivative · entry 1

Leib Ryan J · CIK 0001659260 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,208

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: 0001179110-17-004027 · edgar.xml · derivative · entry 5

Horner Marilyn N · CIK 0001608265 · SVP - Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,624

Underlying: Ordinary Shares · 10,671 shares

Expires 2025-02-22

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: 0001179110-17-004027 · edgar.xml · derivative · entry 4

Horner Marilyn N · CIK 0001608265 · SVP - Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,295

Underlying: Ordinary Shares · 23,606 shares

Expires 2024-02-27

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.