Filed Oct 23, 2025Period of report Oct 21, 20250001032235-25-000014
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
Sale
P and S transaction codes only. Grants, gifts, option exercises, tax withholding, and Form 144 notices are not counted as purchases or sales. A row whose filed price fails a plausibility check, or that is not common stock, is listed but left out of the values; a trade reported by several filers is counted once.
Sep 15, 2026
Common stockF1
1,000
$38.00
$38.00K
39,280
IndirectDianne Ledingham Family Legacy Trust
Filing footnotes · 1
F1Sold pursuant to a pre-arranged trading plan adopted by the Dianne Ledingham Family Legacy Trust on June 15, 2026 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F1Represents the weighted average of sale prices, ranging from $35.7400 to $35.8350. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F1Options will vest in equal quarterly amounts over a four year period with the first vest occurring on February 2, 2023.
F2Each restricted stock unit represents the right to receive, following vesting, one share of common stock.
F320% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 80% vest in equal quarterly installments over the following four years.
F1Each restricted stock unit represents the right to receive, following vesting, one share of common stock.
F220% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 80% vest in equal quarterly installments over the following four years.
F1Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 12, 2025 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F1Represents the weighted average of sale prices, ranging from $44.52 to $45.42 . The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F1Represents the weighted average of sale prices, ranging from $43.84 to $43.86. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F2Each restricted stock unit represents the right to receive, following vesting, one share of common stock.
F320% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 80% vest in equal quarterly installments over the following four years.
F1Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 12, 2025 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F2Each restricted stock unit represents the right to receive, following vesting, one share of common stock.
F320% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 80% vest in equal quarterly installments over the following four years.
F1Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 11, 2025 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F2Represents the weighted average of sale prices, ranging from $45.00 to $45.37. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F3Represents the weighted average of sale prices, ranging from $45.00 to $45.26. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F1Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 29, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F1Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F2Represents the weighted average of sale prices, ranging from $47.28 to $48.27. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F3Represents the weighted average of sale prices, ranging from $48.28 to $49.27. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F4Represents the weighted average of sale prices, ranging from $49.28 to $50.27. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F5Represents the weighted average of sale prices, ranging from $50.28 to $51.27. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F6Represents the weighted average of sale prices, ranging from $48.14 to $49.10. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F7Represents the weighted average of sale prices, ranging from $49.17 to $50.11. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F1Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 29, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F2Represents the weighted average of sale prices, ranging from $59.98 to $60.00. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F1Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F2Represents the weighted average of sale prices, ranging from $57.27 to $58.26. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F3Represents the weighted average of sale prices, ranging from $58.27 to $59.26. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F4Represents the weighted average of sale prices, ranging from $59.27 to $59.49. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F5Represents the weighted average of sale prices, ranging from $57.73 to $58.72. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F6Represents the weighted average of sale prices, ranging from $58.73 to $59.00. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F1Each restricted stock unit represents the right to receive, following vesting, one share of the issuer's common stock.
F2Sold pursuant to a pre-arranged trading plan under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F3Represents the weighted average of sale prices, ranging from $59.61 to $60.50. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F4This restricted stock unit award vested 25% on the Date Exercisable in Table II, with the remaining 75% vesting in equal quarterly amounts over the remaining 3 years.
F1Each restricted stock unit represents the right to receive, following vesting, one share of the issuer's common stock.
F2Represents the weighted average of sale prices, ranging from $57.86 to $57.89. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F3Represents the weighted average of sale prices, ranging from $57.70 to $57.80. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F4This restricted stock unit award vested 25% on the Date Exercisable in Table II, with the remaining 75% vesting in equal quarterly amounts over the remaining 3 years.
F5This stock option is fully vested.
F6On March 5, 2024, the reporting person was granted an option to purchase 80,000 shares of common stock. The option vests in two installments, with up to 25% to vest on the Date Exercisable in Table II based on Pegasystems' satisfaction of certain performance criteria for the fiscal year ended December 31, 2024, and with up to 75% to vest on the second anniversary of the date of grant based on Pegasystems' satisfaction of certain performance criteria for the fiscal year ended December 31, 2025. The performance criteria for the fiscal year ended December 31, 2024 were met in full, resulting in vesting of the option as to 20,000 shares.
F1Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F2Represents the weighted average of sale prices, ranging from $59.53 to $60.52. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F3Represents the weighted average of sale prices, ranging from $60.53 to $61.52. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F4Represents the weighted average of sale prices, ranging from $57.91 to $58.90. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F5Represents the weighted average of sale prices, ranging from $58.91 to $59.90. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F1Represents the weighted average of sale prices, ranging from $62.07 to $62.31. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F2This option vests in equal quarterly installments over a four-year period, with the first installment vesting on the Date Exercisable set forth in Table II.
F1This option vested in two instalments: 25% on the Date Exercisable in Table II, based on Pegasystems' satisfaction of certain performance criteria for the fiscal year ended December 31, 2023, and 75% on the first anniversary of the Date Exercisable, based on Pegasystems' satisfaction of certain performance criteria for the fiscal year ended December 31, 2024.
F1Represents the weighted average of sale prices, ranging from $66.37 to $66.60 . The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F2Option vested 25% on the Date Exercisable in Table II, with the remaining 75% vesting in equal quarterly installments over the following three years.
F1Represents the weighted average of sale prices, ranging from $63.40 to $63.46. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F2The share amounts and price data in this Form 4 have been restated to reflect a 2-for-1 forward stock split of Pegasystems Inc.'s common stock effectuated on June 20, 2025.
F3This option vested as to 20% of the shares subject to the option on the Date Exercisable set forth in Table II and as to the remaining 80% of shares in equal quarterly installments over the following four years.
F1The share amounts and price data in this Form 4 have been restated to reflect a 2-for-1 forward stock split of Pegasystems Inc.'s common stock effectuated on June 20, 2025.
F220% of the shares subject to this option vested on the Date Exercisable set forth in Table II, and the remaining 80% of the shares vested in equal quarterly installments over the following four years.
F1Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F10Represents the weighted average of sale prices, ranging from $66.23 to $66.27. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F2Represents the weighted average of sale prices, ranging from $54.18 to $55.15. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F3Represents the weighted average of sale prices, ranging from $55.23 to $56.22. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F4Represents the weighted average of sale prices, ranging from $56.24 to $57.24 . The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F5Represents the weighted average of sale prices, ranging from $57.25 to $57.62. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F6Represents the weighted average of sale prices, ranging from $62.16 to $63.16. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F7Represents the weighted average of sale prices, ranging from $63.16 to $64.16. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F8Represents the weighted average of sale prices, ranging from $64.17 to $65.17. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
F9Represents the weighted average of sale prices, ranging from $65.18 to $66.04. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.