Robert F. Werner

CIK: 0001590947

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)38 (86.4%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (9.1%)

Compensation grants

Other (G, F, J, C, D, …)2 (4.5%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

TWST

Twist Bioscience Corp

Officer

Discretionary Trading P&L

Holdings

Transaction History (44 total)

TWST
Twist Bioscience Corp
Oct 2, 2026
Sale(S)
Direct
1.5K shares at avg. $188.88$280K
TWST
Twist Bioscience Corp
Sep 8, 2026
Sale(S)
Direct
238 shares at avg. $122.62$29K
TWST
Twist Bioscience Corp
Aug 24, 2026
Sale(S)
Direct
854 shares at avg. $140.77$120K
TWST
Twist Bioscience Corp
Aug 21, 2026
Sale(S)
Direct
669 shares at avg. $139.07$93K
TWST
Twist Bioscience Corp
Aug 3, 2026
Sale(S)
Direct
167 shares at avg. $85.32$14K
TWST
Twist Bioscience Corp
Jun 8, 2026
Gift(G)
Direct
500 shares-
TWST
Twist Bioscience Corp
Jun 8, 2026
Sale(S)
Direct
232 shares at avg. $69.84$16K
TWST
Twist Bioscience Corp
Jun 8, 2026
Sale(S)
Direct
1.1K shares at avg. $69.07$78K
TWST
Twist Bioscience Corp
May 26, 2026
Sale(S)
Direct
800 shares at avg. $62.48$50K
TWST
Twist Bioscience Corp
May 21, 2026
Sale(S)
Direct
688 shares at avg. $53.26$37K
TWST
Twist Bioscience Corp
May 8, 2026
Sale(S)
Direct
5K shares at avg. $56.88$282K
TWST
Twist Bioscience Corp
May 4, 2026
Sale(S)
Direct
164 shares at avg. $57.15$9K
TWST
Twist Bioscience Corp
Mar 6, 2026
Sale(S)
Direct
246 shares at avg. $46.43$11K
TWST
Twist Bioscience Corp
Feb 23, 2026
Sale(S)
Direct
1.7K shares at avg. $46.71$79K
TWST
Twist Bioscience Corp
Feb 9, 2026
Gift(G)
Direct
2K shares-
TWST
Twist Bioscience Corp
Feb 4, 2026
Sale(S)
Direct
7K shares at avg. $45.65$320K
TWST
Twist Bioscience Corp
Feb 3, 2026
Sale(S)
Direct
175 shares at avg. $46.58$8K
TWST
Twist Bioscience Corp
Dec 8, 2025
Sale(S)
Direct
230 shares at avg. $32.88$8K
TWST
Twist Bioscience Corp
Nov 24, 2025
Sale(S)
Direct
822 shares at avg. $28.71$24K
TWST
Twist Bioscience Corp
Nov 21, 2025
Sale(S)
Direct
229 shares at avg. $26.50$6K
TWST
Twist Bioscience Corp
Nov 18, 2025
Award(A)
Direct
16.3K shares-
TWST
Twist Bioscience Corp
Nov 3, 2025
Sale(S)
Direct
160 shares at avg. $32.08$5K
TWST
Twist Bioscience Corp
Oct 30, 2025
Sale(S)
Direct
1K shares at avg. $31.44$32K
TWST
Twist Bioscience Corp
Oct 28, 2025
Award(A)
Direct
5.6K shares-
TWST
Twist Bioscience Corp
Oct 6, 2025
Sale(S)
Direct
2K shares at avg. $32.19$66K

		Type	Shares	Price		Ownership
Oct 2, 2026	TWST Twist Bioscience Corp	Sale(S)	1,482	$188.88	$279,926	Direct
Sep 8, 2026	TWST Twist Bioscience Corp	Sale(S)	238	$122.62	$29,185	Direct
Aug 24, 2026	TWST Twist Bioscience Corp	Sale(S)	854	$140.77	$120,220	Direct
Aug 21, 2026	TWST Twist Bioscience Corp	Sale(S)	669	$139.07	$93,035	Direct
Aug 3, 2026	TWST Twist Bioscience Corp	Sale(S)	167	$85.32	$14,249	Direct
Jun 8, 2026	TWST Twist Bioscience Corp	Gift(G)	500	-	$0	Direct
Jun 8, 2026	TWST Twist Bioscience Corp	Sale(S)	232	$69.84	$16,204	Direct
Jun 8, 2026	TWST Twist Bioscience Corp	Sale(S)	1,127	$69.07	$77,842	Direct
May 26, 2026	TWST Twist Bioscience Corp	Sale(S)	800	$62.48	$49,987	Direct
May 21, 2026	TWST Twist Bioscience Corp	Sale(S)	688	$53.26	$36,641	Direct
May 8, 2026	TWST Twist Bioscience Corp	Sale(S)	4,961	$56.88	$282,187	Direct
May 4, 2026	TWST Twist Bioscience Corp	Sale(S)	164	$57.15	$9,372	Direct
Mar 6, 2026	TWST Twist Bioscience Corp	Sale(S)	246	$46.43	$11,421	Direct
Feb 23, 2026	TWST Twist Bioscience Corp	Sale(S)	1,693	$46.71	$79,080	Direct
Feb 9, 2026	TWST Twist Bioscience Corp	Gift(G)	2,000	-	$0	Direct
Feb 4, 2026	TWST Twist Bioscience Corp	Sale(S)	7,000	$45.65	$319,536	Direct
Feb 3, 2026	TWST Twist Bioscience Corp	Sale(S)	175	$46.58	$8,151	Direct
Dec 8, 2025	TWST Twist Bioscience Corp	Sale(S)	230	$32.88	$7,562	Direct
Nov 24, 2025	TWST Twist Bioscience Corp	Sale(S)	822	$28.71	$23,599	Direct
Nov 21, 2025	TWST Twist Bioscience Corp	Sale(S)	229	$26.50	$6,069	Direct
Nov 18, 2025	TWST Twist Bioscience Corp	Award(A)	16,324	-	-	Direct
Nov 3, 2025	TWST Twist Bioscience Corp	Sale(S)	160	$32.08	$5,133	Direct
Oct 30, 2025	TWST Twist Bioscience Corp	Sale(S)	1,016	$31.44	$31,947	Direct
Oct 28, 2025	TWST Twist Bioscience Corp	Award(A)	5,633	-	-	Direct
Oct 6, 2025	TWST Twist Bioscience Corp	Sale(S)	2,041	$32.19	$65,694	Direct

1-25 of 44 transactions

About WERNER ROBERT F.

WERNER ROBERT F. (SEC CIK 0001590947) files insider reports with the SEC as Chief Accounting Officer of Twist Bioscience Corp (TWST).

Signal8 holds 38 ownership filings by WERNER ROBERT F., all Form 4s, filed between Sep 10, 2024 and Oct 5, 2026. Those filings report 44 transactions, from Sep 6, 2024 to Oct 2, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on WERNER ROBERT F.'s filings is in SOUTH SAN FRANCISCO, CA.

Recent filings by WERNER ROBERT F.

Oct 2, 2026: Open-market sale of TWST shares (Form 4, code S).
Sep 8, 2026: Open-market sale of TWST shares (Form 4, code S).
Aug 24, 2026: Open-market sale of TWST shares (Form 4, code S).
Aug 21, 2026: Open-market sale of TWST shares (Form 4, code S).
Aug 3, 2026: Open-market sale of TWST shares (Form 4, code S).

Other insiders filing for Twist Bioscience Corp (TWST)

Finn Patrick John, President and COO
Laponis Adam, Chief Financial Officer
Leproust Emily M., Chief Executive Officer
Green Paula, SVP of Human Resources
Cho Dennis
BLAKE KATRYN, Director

How to read Form 4 transaction codes