Finn Leo Christian

SEC source: 0001193125-26-359177 · ownership.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,476

F1 · price: This transaction was executed in multiple trades at prices ranging from $11.62 to $11.875. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001193125-26-140311 · ownership.xml · derivative · entry 5

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires not disclosed

F3 · derivative.exercise_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F6 · derivative.exercise_date: On April 1, 2026, the reporting person was granted 50,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F6 · derivative.expiration_date: On April 1, 2026, the reporting person was granted 50,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001193125-26-140311 · ownership.xml · derivative · entry 4

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,999

Underlying: Common Stock · 2,446 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_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F5 · derivative.exercise_date: On April 1, 2025, the reporting person was granted 33,333 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F5 · derivative.expiration_date: On April 1, 2025, the reporting person was granted 33,333 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001193125-26-140311 · ownership.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,001

Underlying: Common Stock · 6,001 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_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On April 1, 2024, the reporting person was granted 24,003 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On April 1, 2024, the reporting person was granted 24,003 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001193125-26-140311 · ownership.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,476

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2026 of the restricted stock units awarded to the reporting person on April 1, 2024 and April 1, 2025. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

SEC source: 0001193125-26-140311 · ownership.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,683

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0001193125-26-088167 · ownership.xml · derivative · entry 4

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,784

Underlying: Common Stock · 3,783 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_price: Each Restricted Stock Unit is the equivalent of one share of Forrester Research, Inc. common stock.

F5 · derivative.exercise_date: On March 1, 2023, the reporting person was granted 15,133 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F5 · derivative.expiration_date: On March 1, 2023, the reporting person was granted 15,133 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001193125-26-088167 · ownership.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,483 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_price: Each Restricted Stock Unit is the equivalent of one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On March 1, 2022, the reporting person was granted 9,934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On March 1, 2022, the reporting person was granted 9,934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001193125-26-088167 · ownership.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,348

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on March 1, 2026 of the restricted stock units awarded to the reporting person on March 1, 2022 and March 1, 2023. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

SEC source: 0001193125-26-088167 · ownership.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,518

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0001193125-25-227693 · ownership.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: common stock · 5,040 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_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On October 1, 2021, the reporting person was granted 20,161 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On October 1, 2021, the reporting person was granted 20,161 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001193125-25-227693 · ownership.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,252

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on October 1, 2025 of the restricted stock units awarded to the reporting person on October 1, 2021. The award includes a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the award.

SEC source: 0001193125-25-227693 · ownership.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,731

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0000950170-25-049969 · ownership.xml · derivative · entry 5

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,666

Underlying: common stock · 66,666 shares

Expires 2035-03-31

F6 · derivative.exercise_date: The Options become exercisable in four equal installments on the first, second, third, and fourth anniversaries of the grant date.

SEC source: 0000950170-25-049969 · ownership.xml · derivative · entry 4

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,333

Underlying: common stock · 33,333 shares

Expires not disclosed

F3 · derivative.exercise_price: Each Restricted Stock Unit is the equivalent of one share of Forrester Research, Inc. common stock.

F5 · derivative.exercise_date: On April 1, 2025, the reporting person was granted 33,333 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F5 · derivative.expiration_date: On April 1, 2025, the reporting person was granted 33,333 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0000950170-25-049969 · ownership.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,002

Underlying: common stock · 6,001 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_price: Each Restricted Stock Unit is the equivalent of one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On April 1, 2024, the reporting person was granted 24,003 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On April 1, 2024, the reporting person was granted 24,003 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0000950170-25-049969 · ownership.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,691

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2025 of the restricted stock units awarded to the reporting person on April 1, 2024. The award includes a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the award.

SEC source: 0000950170-25-049969 · ownership.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,932

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0000950170-25-031690 · ownership.xml · derivative · entry 4

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,567

Underlying: common stock · 3,783 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_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F5 · derivative.exercise_date: On March 1, 2023, the reporting person was granted 15,133 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F5 · derivative.expiration_date: On March 1, 2023, the reporting person was granted 15,133 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0000950170-25-031690 · ownership.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,483

Underlying: common stock · 2,483 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_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On March 1, 2022, the reporting person was granted 9,934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On March 1, 2022, the reporting person was granted 9,934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0000950170-25-031690 · ownership.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,931

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on March 1, 2025 of the restricted stock units awarded to the reporting person on March 1, 2022 and March 1, 2023. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

SEC source: 0000950170-25-031690 · ownership.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,916

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0000950170-24-111345 · ownership.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,040

Underlying: common stock · 5,040 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_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On October 1, 2021, the reporting person was granted 20,161 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On October 1, 2021, the reporting person was granted 20,161 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0000950170-24-111345 · ownership.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,650

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on October 1, 2024 of the restricted stock units awarded to the reporting person on October 1, 2021. The award includes a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the award.

SEC source: 0000950170-24-111345 · ownership.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,129

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0000950170-24-040890 · ownership.xml · derivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,003

Underlying: Common Stock · 24,003 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F2 · derivative.exercise_date: On April 1, 2024, the reporting person was granted 24,003 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F2 · derivative.expiration_date: On April 1, 2024, the reporting person was granted 24,003 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0000950170-24-025727 · ownership.xml · derivative · entry 4

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,350

Underlying: Common Stock · 3,783 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_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F5 · price: Each Restricted Stock Unit is the equivalent of one share of Forrester Research, Inc. common stock.

F6 · derivative.exercise_date: On March 1, 2023, the reporting person was granted 15,133 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F6 · derivative.expiration_date: On March 1, 2023, the reporting person was granted 15,133 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0000950170-24-025727 · ownership.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,966

Underlying: Common Stock · 2,484 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.

F3 · derivative.exercise_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F5 · price: Each Restricted Stock Unit is the equivalent of one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On March 1, 2022, the reporting person was granted 9934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On March 1, 2022, the reporting person was granted 9934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0000950170-24-025727 · ownership.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,089

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on March 1, 2024 of the restricted stock units awarded to the reporting person on March 1, 2022 and March 1, 2023. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

SEC source: 0000950170-24-025727 · ownership.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,145

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0001209191-23-050992 · doc4.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,080

Underlying: common stock · 5,040 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_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On October 1, 2021, the reporting person was granted 20,161 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On October 1, 2021, the reporting person was granted 20,161 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001209191-23-050992 · doc4.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,878

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on October 1, 2023 of the restricted stock units awarded to the reporting person on October 1, 2021. The award includes a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the award.

SEC source: 0001209191-23-050992 · doc4.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,357

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0001209191-23-015657 · doc4.xml · derivative · entry 5

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,266

Underlying: common stock · 30,266 shares

Expires 2033-02-28

F6 · derivative.exercise_date: The Options become exercisable in four equal installments on the first, second, third, and fourth anniversaries of the grant date.

SEC source: 0001209191-23-015657 · doc4.xml · derivative · entry 4

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,133

Underlying: common stock · 15,133 shares

Expires not disclosed

F3 · derivative.exercise_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F5 · derivative.exercise_date: On March 1, 2023, the reporting person was granted 15,133 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F5 · derivative.expiration_date: On March 1, 2023, the reporting person was granted 15,133 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001209191-23-015657 · doc4.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,450

Underlying: common stock · 2,484 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.

F3 · derivative.exercise_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On March 1, 2022, the reporting person was granted 9,934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On March 1, 2022, the reporting person was granted 9,934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001209191-23-015657 · doc4.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,317

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on March 1, 2023 of the restricted stock units awarded to the reporting person on March 1, 2022. The award includes a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the award.

SEC source: 0001209191-23-015657 · doc4.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,046

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0001209191-22-051887 · doc4.xml · derivative · entry 3

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,120

Underlying: common stock · 5,041 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_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F5 · price: Each Restricted Stock Unit is the equivalent of one share of Forrester Research, Inc. common stock.

F4 · derivative.exercise_date: On October 1, 2021, the reporting person was granted 20,161 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On October 1, 2021, the reporting person was granted 20,161 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001209191-22-051887 · doc4.xml · nonDerivative · entry 2

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,562

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on October 1, 2022 of the restricted stock units awarded to the reporting person on October 1, 2021. The award includes a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the award.

SEC source: 0001209191-22-051887 · doc4.xml · nonDerivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,041

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: Represents the conversion, upon vesting, of restricted stock units into common stock.

SEC source: 0001209191-22-014718 · doc4.xml · derivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,934

Underlying: common stock · 9,934 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F3 · price: Each Restricted Stock Unit is the equivalent of one share of Forrester Research, Inc. common stock.

F2 · derivative.exercise_date: On March 1, 2022, the reporting person was granted 9934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F2 · derivative.expiration_date: On March 1, 2022, the reporting person was granted 9934 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

SEC source: 0001209191-21-058710 · doc4.xml · derivative · entry 1

Finn Leo Christian · CIK 0001882029 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,161

Underlying: common stock · 20,161 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

F2 · derivative.exercise_date: Unless earlier forfeited under the terms of the RSU, the award vests and converts into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

F2 · derivative.expiration_date: Unless earlier forfeited under the terms of the RSU, the award vests and converts into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.