Stephen A. Sherwin

CIK: 0001079462

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)7 (38.9%)

Position reduction

Option Exercises (M)4 (22.2%)

Derivative conversions

Awards (A)4 (22.2%)

Compensation grants

Other (G, F, J, C, D, …)3 (16.7%)

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

Companies & Roles (2)

NBIX

NEUROCRINE BIOSCIENCES INC

Director

BIIB

BIOGEN INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (18 total)

NBIX
NEUROCRINE BIOSCIENCES INC
Sep 2, 2026
Gift(G)
Direct
1K shares-
BIIB
BIOGEN INC.
Jun 9, 2026
Award(A)
Direct
1.5K shares-
NBIX
NEUROCRINE BIOSCIENCES INC
Jun 5, 2026
Sale(S)
Direct
5.8K shares at avg. $166.56$971K
NBIX
NEUROCRINE BIOSCIENCES INC
Jun 5, 2026
Sale(S)
Direct
6.9K shares at avg. $165.79$1.1M
NBIX
NEUROCRINE BIOSCIENCES INC
Jun 5, 2026
Sale(S)
Direct
2.5K shares at avg. $164.44$419K
NBIX
NEUROCRINE BIOSCIENCES INC
Jun 5, 2026
Exercise(M)
Direct
15K shares at avg. $53.64$805K
NBIX
NEUROCRINE BIOSCIENCES INC
Jun 5, 2026
Sale(S)
Direct
7.9K shares at avg. $163.81$1.3M
NBIX
NEUROCRINE BIOSCIENCES INC
Jun 5, 2026
Exercise(M)
Direct
10K shares at avg. $79.79$798K
NBIX
NEUROCRINE BIOSCIENCES INC
Jun 5, 2026
Sale(S)
Direct
1.8K shares at avg. $167.31$308K
NBIX
NEUROCRINE BIOSCIENCES INC
May 27, 2026
Award(A)
Restriced Stock Unit
Direct
2.6K shares-
NBIX
NEUROCRINE BIOSCIENCES INC
May 21, 2026
Exercise(M)
Direct
3.3K shares-
NBIX
NEUROCRINE BIOSCIENCES INC
Sep 2, 2025
Gift(G)
Direct
1K shares-
BIIB
BIOGEN INC.
Jun 17, 2025
Award(A)
Direct
2.4K shares-
NBIX
NEUROCRINE BIOSCIENCES INC
May 22, 2025
Exercise(M)
Direct
2.9K shares-
NBIX
NEUROCRINE BIOSCIENCES INC
May 21, 2025
Award(A)
Restricted Stock Unit
Direct
3.3K shares-
BIIB
BIOGEN INC.
Mar 7, 2025
Sale(S)
Direct
8.8K shares at avg. $150.02$1.3M
NBIX
NEUROCRINE BIOSCIENCES INC
Feb 13, 2025
Sale(S)
Direct
13.8K shares at avg. $116.69$1.6M
NBIX
NEUROCRINE BIOSCIENCES INC
Nov 4, 2024
Gift(G)
Direct
2K shares-

		Type	Shares	Price		Ownership
Sep 2, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Gift(G)	1,000	-	$0	Direct
Jun 9, 2026	BIIB BIOGEN INC.	Award(A)	1,505	-	$0	Direct
Jun 5, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Sale(S)	5,829	$166.56	$970,859	Direct
Jun 5, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Sale(S)	6,896	$165.79	$1,143,306	Direct
Jun 5, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Sale(S)	2,549	$164.44	$419,156	Direct
Jun 5, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Exercise(M)	15,000	$53.64	$804,600	Direct
Jun 5, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Sale(S)	7,883	$163.81	$1,291,291	Direct
Jun 5, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Exercise(M)	10,000	$79.79	$797,900	Direct
Jun 5, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Sale(S)	1,843	$167.31	$308,357	Direct
May 27, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Award(A) Restriced Stock Unit	2,567	-	-	Direct
May 21, 2026	NBIX NEUROCRINE BIOSCIENCES INC	Exercise(M)	3,318	-	$0	Direct
Sep 2, 2025	NBIX NEUROCRINE BIOSCIENCES INC	Gift(G)	1,000	-	-	Direct
Jun 17, 2025	BIIB BIOGEN INC.	Award(A)	2,370	-	-	Direct
May 22, 2025	NBIX NEUROCRINE BIOSCIENCES INC	Exercise(M)	2,869	-	-	Direct
May 21, 2025	NBIX NEUROCRINE BIOSCIENCES INC	Award(A) Restricted Stock Unit	3,318	-	-	Direct
Mar 7, 2025	BIIB BIOGEN INC.	Sale(S)	8,760	$150.02	$1,314,142	Direct
Feb 13, 2025	NBIX NEUROCRINE BIOSCIENCES INC	Sale(S)	13,831	$116.69	$1,613,923	Direct
Nov 4, 2024	NBIX NEUROCRINE BIOSCIENCES INC	Gift(G)	2,000	-	$0	Direct

1-18 of 18 transactions

About SHERWIN STEPHEN A

SHERWIN STEPHEN A (SEC CIK 0001079462) files insider reports with the SEC as Director of NEUROCRINE BIOSCIENCES INC (NBIX) and Director of BIOGEN INC. (BIIB).

Signal8 holds 11 ownership filings by SHERWIN STEPHEN A, all Form 4s, filed between Nov 7, 2024 and Sep 3, 2026. Those filings report 18 transactions, from Nov 4, 2024 to Sep 2, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on SHERWIN STEPHEN A's filings is in SAN DIEGO, CA.

Recent filings by SHERWIN STEPHEN A

Sep 2, 2026: Gift of NBIX shares (Form 4, code G).
Jun 9, 2026: Grant or award of BIIB shares (Form 4, code A).
Jun 5, 2026: Open-market sales of NBIX shares (3 lines, Form 4, code S).
Jun 5, 2026: Option exercise of NBIX shares (Form 4, code M).
Jun 5, 2026: Open-market sale of NBIX shares (Form 4, code S).

Other insiders filing for NEUROCRINE BIOSCIENCES INC (NBIX)

ROBERTS EIRY, Chief Medical Officer
Onyia Jude, Chief Scientific Officer
Lippoldt Darin, Chief Legal Officer
Keswani Sanjay Chandru, Chief Medical Officer
GORMAN KEVIN CHARLES, Director
Gano Kyle, Chief Executive Officer

How to read Form 4 transaction codes