Reporting owner · CIK 0001970151

Birchler Brian

Visual SEC Form 4 history across 1 companies, 13 transactions and 7 filings.

EVP, CDOEVP, Corp and Development OpsIONIS PHARMACEUTICALS INC
Open-market mix
Latest filingSep 03, 2026, 12:22 AM
Filings7Form 4 records
Buying$00 purchases
Selling$176.6K1 sales
Net value−$176.6KBuys minus sells
Companies14 securities
Most recentAug 31, 2026other

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
530-3-5Dec 23Jan 241Jan 25Feb 25Jan 26Aug 26

Net value flow

Buys minus sells

Dec 23
$0
Jan 24
$0
Jan 25
−$176.6K
Feb 25
$0
Jan 26
$0
Aug 26
$0

Transaction texture

Ownership and ticket size

Average P/S size$176.6K
Median P/S size$176.6K
Direct13
Indirect0
Aug 31, 2026other

Filing-only signals

Deterministic matches in this insider's history

Cluster Sellingpattern1Derivative Transactionfiling-context7Direct Ownershipfiling-context12Large Holdings Increaseholdings5Large Holdings Reductionholdings2

Latest Form 4 facts

Quick context from source filings

Latest transaction

sale at IONIS PHARMACEUTICALS INC on Jan 16, 2025 valued at $176,580.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Latest sale

sale at IONIS PHARMACEUTICALS INC on Jan 16, 2025 valued at $176,580.

Review SEC filing

Associated companies

Visual map of known reporting history

IONSIONIS PHARMACEUTICALS INC13 transactions · latest Sep 03, 2026, 12:22 AM
TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date
IONSBirchler Brian
EVPCDO
other58$297kJ
Direct Ownership
0.0%09/0308/31
IONSBirchler Brian
EVPCDO
grant19.3k$0A
Derivative Transaction Direct Ownership Large Holdings Increase
—01/0601/02
IONSBirchler Brian
EVPCDO
other414$1.16MJ
Direct Ownership
—03/04/202502/28/2025
IONSBirchler Brian
EVPCDO
exercise14.2k$0M
Derivative Transaction Direct Ownership
—01/18/202501/15/2025
IONSBirchler Brian
EVPCDO
grant33.0k$0A
Derivative Transaction Direct Ownership Large Holdings Increase
—01/18/202501/15/2025
IONSBirchler Brian
EVPCDO
grant22.0k$0A
Derivative Transaction Direct Ownership Large Holdings Increase
—01/18/202501/15/2025
IONSBirchler Brian
EVPCDO
sale5.40k-$17.6MS
Cluster Selling Direct Ownership
—01/18/202501/16/2025
IONSBirchler Brian
EVPCDO
exercise14.2k$0M
Direct Ownership
—01/18/202501/15/2025
IONSBirchler Brian
EVPCDO
grant22.0k$0A
Derivative Transaction Direct Ownership Large Holdings Increase
—01/06/202501/02/2025
IONSBirchler Brian
EVPCDO
grant27.2k$0A
Derivative Transaction Direct Ownership Large Holdings Increase
—01/04/202401/02/2024

Birchler Brian Insider Activity FAQ

SEC Form 4 context

Who is Birchler Brian?

Birchler Brian is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001970151.

Which companies has Birchler Brian reported transactions for?

IONIS PHARMACEUTICALS INC

When was Birchler Brian's latest insider buy?

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

When was Birchler Brian's latest insider sale?

sale at IONIS PHARMACEUTICALS INC on Jan 16, 2025 valued at $176,580.

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.