Stocks
TWST Twist Bioscience Corp

TWST

Twist Bioscience Corp

Company with tickers: TWST

CIK

1581280

CUSIP

90184D100

Shares Outstanding

62,271,314

Price History Institutional Holders Short Volume Short Interest Fails to Deliver SEC Filings Earnings Calls Insider Trades Congressional Trades

Date	Insider	Role	Type	Shares	Price	Value	After
2026-05-12	JOHANNESSEN JAN	Director	Convert	12,000	$14.00	$168,000	29,754
2026-05-12	JOHANNESSEN JAN	Director	Convert	12,000	—	—	10,304
2026-05-12	JOHANNESSEN JAN	Director	Sell	12,000	$56.12	$673,440	17,754
2026-05-08	WERNER ROBERT F.	Chief Accounting Officer	Sell	4,961	$56.88	$282,187	49,674
2026-05-04	Leproust Emily M.	Director	Other	64,950	—	—	64,950
2026-05-04	Cho Dennis	See Remarks	Sell	1,962	$57.15	$112,126	135,941
2026-05-04	Leproust Emily M.	Director	Other	141,208	—	—	141,208
2026-05-04	Leproust Emily M.	Director	Other	0	—	—	0
2026-05-04	Leproust Emily M.	Director	Other	131,290	—	—	131,290
2026-05-04	Leproust Emily M.	Director	Sell	5,127	$57.15	$293,002	853,760
2026-05-04	Leproust Emily M.	Director	Other	266,539	—	—	266,539
2026-05-04	Finn Patrick John	President and COO	Sell	2,844	$57.15	$162,531	278,964
2026-05-04	Green Paula	SVP of Human Resources	Sell	1,116	$57.15	$63,778	122,988
2026-05-04	WERNER ROBERT F.	Chief Accounting Officer	Sell	164	$57.15	$9,372	54,635
2026-04-27	Starovasnik Melissa A.	Director	Sell	500	$61.83	$30,915	25,222
2026-04-23	Finn Patrick John	President and COO	Sell	2,321	$60.76	$141,026	281,808
2026-04-22	Leproust Emily M.	Director	Sell	7,910	$65.28	$516,325	859,038
2026-04-22	Leproust Emily M.	Director	Convert	8,061	—	—	141,208
2026-04-22	Leproust Emily M.	Director	Sell	151	$66.00	$9,966	858,887
2026-04-22	Leproust Emily M.	Director	Convert	8,061	$8.82	$71,098	866,948
2026-04-21	Leproust Emily M.	Director	Other	131,290	—	—	131,290
2026-04-21	Leproust Emily M.	Director	Convert	1,610	—	—	149,269
2026-04-21	Leproust Emily M.	Director	Other	0	—	—	0
2026-04-21	Leproust Emily M.	Director	Other	266,539	—	—	266,539
2026-04-21	Leproust Emily M.	Director	Convert	1,610	$8.82	$14,200	860,497
2026-04-21	Leproust Emily M.	Director	Other	64,950	—	—	64,950
2026-04-21	Leproust Emily M.	Director	Sell	1,610	$65.01	$104,666	858,887
2026-04-17	Laponis Adam	Chief Financial Officer	Sell	4,000	$60.00	$240,000	118,694
2026-04-14	Laponis Adam	Chief Financial Officer	Sell	3,000	$55.00	$165,000	122,694
2026-04-09	Laponis Adam	Chief Financial Officer	Sell	2,597	$49.89	$129,562	125,694
2026-04-01	Starovasnik Melissa A.	Director	Sell	1,000	$51.00	$51,000	25,722
2026-03-20	Cho Dennis	See Remarks	Sell	354	$43.79	$15,500	137,903
2026-03-20	Leproust Emily M.	Director	Sell	1,742	$43.79	$76,276	858,887
2026-03-20	Leproust Emily M.	Director	Other	266,539	—	—	266,539
2026-03-20	Leproust Emily M.	Director	Other	64,950	—	—	64,950
2026-03-20	Leproust Emily M.	Director	Other	131,290	—	—	131,290
2026-03-20	Leproust Emily M.	Director	Other	0	—	—	0
2026-03-20	Leproust Emily M.	Director	Other	150,879	—	—	150,879
2026-03-20	Green Paula	SVP of Human Resources	Sell	297	$43.79	$13,005	124,104
2026-03-17	CHESS ROBERT	Director	Sell	10,000	$47.00	$470,000	21,084
2026-03-17	CHESS ROBERT	Director	Convert	10,000	—	—	18,417
2026-03-17	CHESS ROBERT	Director	Other	42,528	—	—	42,528
2026-03-17	CHESS ROBERT	Director	Convert	10,000	$11.89	$118,900	31,084
2026-03-06	WERNER ROBERT F.	Chief Accounting Officer	Sell	246	$46.43	$11,421	54,799
2026-03-06	Leproust Emily M.	Director	Other	0	—	—	0
2026-03-06	Leproust Emily M.	Director	Other	131,290	—	—	131,290
2026-03-06	Leproust Emily M.	Director	Sell	2,423	$46.43	$112,490	860,629
2026-03-06	Leproust Emily M.	Director	Other	266,539	—	—	266,539
2026-03-06	Leproust Emily M.	Director	Other	64,950	—	—	64,950
2026-03-06	Leproust Emily M.	Director	Other	150,879	—	—	150,879
2026-03-06	Cho Dennis	See Remarks	Sell	425	$46.43	$19,731	138,257
2026-03-06	Green Paula	SVP of Human Resources	Sell	935	$46.43	$43,408	124,401
2026-02-23	WERNER ROBERT F.	Chief Accounting Officer	Sell	1,693	$46.71	$79,080	55,045
2026-02-23	Laponis Adam	Chief Financial Officer	Sell	2,085	$46.71	$97,390	128,291
2026-02-23	Leproust Emily M.	Director	Other	64,950	—	—	64,950
2026-02-23	Leproust Emily M.	Director	Sell	7,205	$46.71	$336,544	863,052
2026-02-23	Leproust Emily M.	Director	Other	131,290	—	—	131,290
2026-02-23	Leproust Emily M.	Director	Other	266,539	—	—	266,539
2026-02-23	Leproust Emily M.	Director	Other	0	—	—	0
2026-02-23	Leproust Emily M.	Director	Other	150,879	—	—	150,879
2026-02-23	Finn Patrick John	President and COO	Sell	4,294	$46.71	$200,572	284,129
2026-02-23	Green Paula	SVP of Human Resources	Sell	1,465	$46.71	$68,430	125,336
2026-02-23	Cho Dennis	See Remarks	Sell	844	$46.71	$39,423	138,682
2026-02-17	Green Paula	SVP of Human Resources	Sell	39,404	$52.40	$2,064,770	126,041
2026-02-17	Finn Patrick John	President and COO	Sell	26,952	$52.69	$1,419,993	291,329
2026-02-17	Finn Patrick John	President and COO	Sell	16,616	$51.42	$854,445	318,281
2026-02-17	Finn Patrick John	President and COO	Convert	32,300	—	—	0
2026-02-17	Finn Patrick John	President and COO	Convert	18,205	—	—	0
2026-02-17	Finn Patrick John	President and COO	Convert	32,300	$26.66	$861,118	356,755
2026-02-17	Finn Patrick John	President and COO	Sell	3,541	$53.11	$188,063	287,788
2026-02-17	Finn Patrick John	President and COO	Convert	18,205	$23.33	$424,723	324,455
2026-02-17	Finn Patrick John	President and COO	Sell	21,858	$50.32	$1,099,916	334,897
2026-02-13	CHESS ROBERT	Director	Sell	2,184	$48.26	$105,402	21,084
2026-02-13	CHESS ROBERT	Director	Other	42,528	—	—	42,528
2026-02-13	Finn Patrick John	President and COO	Convert	500	—	—	18,052
2026-02-13	Finn Patrick John	President and COO	Convert	712	—	—	32,300
2026-02-13	Finn Patrick John	President and COO	Convert	500	$23.33	$11,665	307,288
2026-02-13	Finn Patrick John	President and COO	Convert	712	$26.66	$18,982	308,000
2026-02-13	Finn Patrick John	President and COO	Sell	1,750	$50.04	$87,572	306,250
2026-02-12	Finn Patrick John	President and COO	Convert	1,000	$23.33	$23,330	308,788
2026-02-12	Finn Patrick John	President and COO	Convert	1,500	$26.66	$39,990	310,288
2026-02-12	Finn Patrick John	President and COO	Convert	1,000	—	—	18,705
2026-02-12	Finn Patrick John	President and COO	Sell	3,500	$50.23	$175,788	306,788
2026-02-12	Finn Patrick John	President and COO	Convert	1,500	—	—	33,012
2026-02-12	Laponis Adam	Chief Financial Officer	Sell	7,000	$50.00	$350,000	130,031
2026-02-11	Cho Dennis	See Remarks	Sell	5,000	$49.93	$249,650	138,581
2026-02-09	WERNER ROBERT F.	Chief Accounting Officer	Gift	2,000	—	—	56,738
2026-02-06	JOHANNESSEN JAN	Director	Sell	2,200	$47.91	$105,395	17,754
2026-02-05	CRANDELL KEITH	10% Owner	Award	5,095	—	—	27,571
2026-02-05	CRANDELL KEITH	10% Owner	Other	76,047	—	—	76,047
2026-02-05	Starovasnik Melissa A.	Director	Award	5,095	—	—	26,722
2026-02-05	RAGUSA ROBERT P	Director, Chief Executive Officer	Award	5,095	—	—	28,983
2026-02-05	BLAKE KATRYN	Director	Award	5,095	—	—	19,448
2026-02-05	JOHANNESSEN JAN	Director	Award	5,095	—	—	19,954
2026-02-05	CHESS ROBERT	Director	Other	42,528	—	—	42,528
2026-02-05	CHESS ROBERT	Director	Award	5,095	—	—	23,268
2026-02-05	Chan Nelson	Director	Award	5,095	—	—	33,251
2026-02-04	WERNER ROBERT F.	Chief Accounting Officer	Sell	7,000	$45.65	$319,536	58,738
2026-02-03	Green Paula	SVP of Human Resources	Sell	1,194	$46.58	$55,612	165,445
2026-02-03	Finn Patrick John	President and COO	Sell	2,705	$46.58	$125,988	307,788