TWST insider transactions

Chief Financial Officer Laponis Adam sold $280,000 worth of shares (4,000 units at $70.00) as part of a pre-agreed trading plan, decreasing direct ownership by 3% to 112,675 units (SEC Form 4)

Officer Cho Dennis sold $990,799 worth of shares (14,205 units at $69.75) as part of a pre-agreed trading plan, decreasing direct ownership by 11% to 120,094 units (SEC Form 4)

Director Starovasnik Melissa A. sold $170,000 worth of shares (2,500 units at $68.00) as part of a pre-agreed trading plan, decreasing direct ownership by 10% to 22,222 units (SEC Form 4)

Chief Executive Officer Leproust Emily M. exercised 16,470 shares at a strike of $8.82 and sold $1,118,555 worth of shares (16,470 units at $67.91) as part of a pre-agreed trading plan (SEC Form 4)

Chief Accounting Officer Werner Robert F. sold $49,987 worth of shares (800 units at $62.48), decreasing direct ownership by 2% to 48,186 units (SEC Form 4) (tax liability)

Chief Executive Officer Leproust Emily M. exercised 49,299 shares at a strike of $8.82 and sold $3,213,653 worth of shares (49,299 units at $65.19) as part of a pre-agreed trading plan (SEC Form 4)

Director Starovasnik Melissa A. sold $30,520 worth of shares (500 units at $61.04) as part of a pre-agreed trading plan, decreasing direct ownership by 2% to 24,722 units (SEC Form 4)

SVP of Human Resources Green Paula sold $74,507 worth of shares (1,399 units at $53.26), decreasing direct ownership by 1% to 121,589 units (SEC Form 4) (for tax liability)

President and COO Finn Patrick John sold $221,549 worth of shares (4,160 units at $53.26), decreasing direct ownership by 1% to 274,804 units (SEC Form 4) (withholding obligation)

Officer Cho Dennis sold $87,448 worth of shares (1,642 units at $53.26), decreasing direct ownership by 1% to 134,299 units (SEC Form 4) (withholding tax)

Chief Financial Officer Laponis Adam sold $107,526 worth of shares (2,019 units at $53.26), decreasing direct ownership by 2% to 116,675 units (SEC Form 4) to satisfy withholding tax

Chief Accounting Officer Werner Robert F. sold $36,641 worth of shares (688 units at $53.26), decreasing direct ownership by 1% to 48,986 units (SEC Form 4) (for withholding tax)

Chief Executive Officer Leproust Emily M. sold $366,834 worth of shares (6,888 units at $53.26), decreasing direct ownership by 0.81% to 846,872 units (SEC Form 4) (tax liability)

Director Johannessen Jan exercised 12,000 shares at a strike of $14.00 and sold $673,440 worth of shares (12,000 units at $56.12) (SEC Form 4)

Chief Accounting Officer Werner Robert F. sold $282,187 worth of shares (4,961 units at $56.88), decreasing direct ownership by 9% to 49,674 units (SEC Form 4)

Officer Cho Dennis sold $112,126 worth of shares (1,962 units at $57.15), decreasing direct ownership by 1% to 135,941 units (SEC Form 4) to satisfy tax liability

Chief Executive Officer Leproust Emily M. sold $293,002 worth of shares (5,127 units at $57.15), decreasing direct ownership by 0.60% to 853,760 units (SEC Form 4) (for tax liability)

Chief Accounting Officer Werner Robert F. sold $9,372 worth of shares (164 units at $57.15), decreasing direct ownership by 0.30% to 54,635 units (SEC Form 4) to cover taxes

President and COO Finn Patrick John sold $162,531 worth of shares (2,844 units at $57.15), decreasing direct ownership by 1% to 278,964 units (SEC Form 4) to satisfy tax liability

SVP of Human Resources Green Paula sold $63,778 worth of shares (1,116 units at $57.15), decreasing direct ownership by 0.90% to 122,988 units (SEC Form 4) (withholding obligation)

Director Starovasnik Melissa A. sold $30,915 worth of shares (500 units at $61.83) as part of a pre-agreed trading plan, decreasing direct ownership by 2% to 25,222 units (SEC Form 4)

President and COO Finn Patrick John sold $141,026 worth of shares (2,321 units at $60.76), decreasing direct ownership by 0.82% to 281,808 units (SEC Form 4) to cover withholding tax

Chief Executive Officer Leproust Emily M. exercised 9,671 shares at a strike of $8.82 and sold $630,957 worth of shares (9,671 units at $65.24) as part of a pre-agreed trading plan (SEC Form 4)

SEC Form 4 filed by Laponis Adam

SEC Form 4 filed by Laponis Adam

SEC Form 4 filed by Laponis Adam

SEC Form 4 filed by Starovasnik Melissa A.

SEC Form 4 filed by Leproust Emily M.

SEC Form 4 filed by Cho Dennis

SEC Form 4 filed by Green Paula

SEC Form 4 filed by Chess Robert

Chief Accounting Officer Werner Robert F. sold $11,421 worth of shares (246 units at $46.43), decreasing direct ownership by 0.45% to 54,799 units (SEC Form 4)

SVP of Human Resources Green Paula sold $43,408 worth of shares (935 units at $46.43), decreasing direct ownership by 0.75% to 124,401 units (SEC Form 4)

Officer Cho Dennis sold $19,731 worth of shares (425 units at $46.43), decreasing direct ownership by 0.31% to 138,257 units (SEC Form 4)

Chief Executive Officer Leproust Emily M. sold $112,490 worth of shares (2,423 units at $46.43), decreasing direct ownership by 0.28% to 860,629 units (SEC Form 4)

Chief Accounting Officer Werner Robert F. sold $79,080 worth of shares (1,693 units at $46.71), decreasing direct ownership by 3% to 55,045 units (SEC Form 4)

Chief Financial Officer Laponis Adam sold $97,390 worth of shares (2,085 units at $46.71), decreasing direct ownership by 2% to 128,291 units (SEC Form 4)

President and COO Finn Patrick John sold $200,572 worth of shares (4,294 units at $46.71), decreasing direct ownership by 1% to 284,129 units (SEC Form 4)

Chief Executive Officer Leproust Emily M. sold $336,544 worth of shares (7,205 units at $46.71), decreasing direct ownership by 0.83% to 863,052 units (SEC Form 4)

Officer Cho Dennis sold $39,423 worth of shares (844 units at $46.71), decreasing direct ownership by 0.60% to 138,682 units (SEC Form 4)

SVP of Human Resources Green Paula sold $68,430 worth of shares (1,465 units at $46.71), decreasing direct ownership by 1% to 125,336 units (SEC Form 4)

SVP of Human Resources Green Paula sold $2,064,770 worth of shares (39,404 units at $52.40), decreasing direct ownership by 24% to 126,041 units (SEC Form 4)

President and COO Finn Patrick John sold $3,562,417 worth of shares (68,967 units at $51.65) and exercised 50,505 shares at a strike of $25.46, decreasing direct ownership by 6% to 287,788 units (SEC Form 4)

Director Chess Robert sold $105,402 worth of shares (2,184 units at $48.26), decreasing direct ownership by 9% to 21,084 units (SEC Form 4)

President and COO Finn Patrick John exercised 3,712 shares at a strike of $25.31 and sold $263,359 worth of shares (5,250 units at $50.16), decreasing direct ownership by 0.50% to 306,250 units (SEC Form 4)

Chief Financial Officer Laponis Adam sold $350,000 worth of shares (7,000 units at $50.00), decreasing direct ownership by 5% to 130,031 units (SEC Form 4)

Officer Cho Dennis sold $249,650 worth of shares (5,000 units at $49.93), decreasing direct ownership by 3% to 138,581 units (SEC Form 4)

Chief Accounting Officer Werner Robert F. gifted 2,000 shares, decreasing direct ownership by 3% to 56,738 units (SEC Form 4)

Director Crandell Keith was granted 5,095 shares, increasing direct ownership by 23% to 27,571 units (SEC Form 4)

Director Starovasnik Melissa A. was granted 5,095 shares, increasing direct ownership by 24% to 26,722 units (SEC Form 4)

Director Ragusa Robert P was granted 5,095 shares, increasing direct ownership by 21% to 28,983 units (SEC Form 4)

Director Chess Robert was granted 5,095 shares, increasing direct ownership by 28% to 23,268 units (SEC Form 4)

Director Chan Nelson was granted 5,095 shares, increasing direct ownership by 18% to 33,251 units (SEC Form 4)

Director Blake Katryn was granted 5,095 shares, increasing direct ownership by 35% to 19,448 units (SEC Form 4)

Director Johannessen Jan was granted 5,095 shares and sold $105,395 worth of shares (2,200 units at $47.91), increasing direct ownership by 19% to 17,754 units (SEC Form 4)

Officer Cho Dennis sold $51,187 worth of shares (1,099 units at $46.58), decreasing direct ownership by 0.76% to 143,581 units (SEC Form 4)

President and COO Finn Patrick John sold $125,988 worth of shares (2,705 units at $46.58), decreasing direct ownership by 0.87% to 307,788 units (SEC Form 4)

Chief Executive Officer Leproust Emily M. sold $232,927 worth of shares (5,001 units at $46.58), decreasing direct ownership by 0.57% to 869,312 units (SEC Form 4)

SVP of Human Resources Green Paula sold $55,612 worth of shares (1,194 units at $46.58), decreasing direct ownership by 0.72% to 165,445 units (SEC Form 4)

Chief Accounting Officer Werner Robert F. sold $327,687 worth of shares (7,175 units at $45.67), decreasing direct ownership by 11% to 58,738 units (SEC Form 4)