Reporting owner · CIK 0001079462

Sherwin Stephen A

Visual SEC Form 4 history across 2 companies, 4 transactions and 4 filings.

DIRNEUROCRINE BIOSCIENCES INC
Open-market mix
Latest filingSep 04, 2026, 01:39 AM
Filings4Form 4 records
Buying$00 purchases
Selling$2.9M2 sales
Net value−$2.9MBuys minus sells
Companies22 securities
Most recentSep 02, 2026gift

Open-market buy performance

90-day forward return on this insider's open-market purchases

90d forward
Forward return is not available yet

We compute this from each buy's stock performance 90 days after the transaction. The price history is still being populated for this insider's their open-market buys, so the average and median will appear here once the daily price refresh has covered the relevant trading days.

Monthly open-market activity

Reported purchase and sale transaction counts

Buys Sells
530-3-51Feb 251Mar 25May 26Sep 26

Net value flow

Buys minus sells

Feb 25
−$1.6M
Mar 25
−$1.3M
May 26
$0
Sep 26
$0

Transaction texture

Ownership and ticket size

Average P/S size$1.5M
Median P/S size$1.5M
Direct4
Indirect0
Sep 02, 2026gift

Filing-only signals

Deterministic matches in this insider's history

Cluster Sellingpattern1Derivative Transactionfiling-context1Direct Ownershipfiling-context3Large Holdings Increaseholdings1Large Holdings Reductionholdings2Large Salesize210b5-1 Detectedfiling-context1

Latest Form 4 facts

Quick context from source filings

Latest transaction

sale at BIOGEN INC. on Mar 07, 2025 valued at $1,314,142.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Associated companies

Visual map of known reporting history

NBIXNEUROCRINE BIOSCIENCES INC3 transactions · latest Sep 04, 2026, 01:39 AMBIIBBIOGEN INC.1 transactions · latest Mar 10, 2025, 08:09 PM
TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date
NBIXSHERWIN STEPHEN A
DIR
gift1.00k$0G
Direct Ownership
0.0%09/0409/02
NBIXSHERWIN STEPHEN A
DIR
grant2.56k$0A
Derivative Transaction Direct Ownership Large Holdings Increase
−3.8%05/2905/27
BIIBSHERWIN STEPHEN A
DIR
sale8.76k-$131MS
Direct Ownership Large Holdings Reduction Large Sale
—03/10/202503/07/2025
NBIXSHERWIN STEPHEN A
DIR
sale10b5-113.8k-$161MS
Cluster Selling Direct Ownership Large Holdings Reduction+2
—02/14/202502/13/2025

Sherwin Stephen A Insider Activity FAQ

SEC Form 4 context

Who is Sherwin Stephen A?

Sherwin Stephen A is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001079462.

Which companies has Sherwin Stephen A reported transactions for?

NEUROCRINE BIOSCIENCES INC, BIOGEN INC.

When was Sherwin Stephen A's latest insider buy?

No open-market insider purchase is available for this period.

When was Sherwin Stephen A's latest insider sale?

sale at BIOGEN INC. on Mar 07, 2025 valued at $1,314,142.

Where can I see the original SEC filings?

Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.

Are performance metrics included?

This version does not calculate win rates, forward returns, benchmark-adjusted returns, or high-conviction scores.