SG
Steven R Gardner
Director

Steven R Gardner insider trades: Columbia Banking System (COLB) stock buys and sales

Director, Columbia Banking System Last trade Oct 29, 2026 71 Form 4 filings
$733K
Sold, last 12 months
2 sales
$0
Bought, last 12 months
0 buys
36
Open-market trades
since 2005
2
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Steven reports to the SEC

Open-market buys and sales

36 trades reported on SEC Form 4, newest first

DateStockTypeValue
Oct 29, 2026COLB↓ Sell$329K
Jan 30, 2026COLB↓ Sell$404K
Dec 19, 2022PPBI↓ Sell$3.2M
Mar 15, 2021PPBI↓ Sell$1.1M
Nov 21, 2019PPBI↓ Sell$582K
Nov 20, 2019PPBI↓ Sell$1.7M
Nov 15, 2019PPBI↓ Sell$1.6M
Feb 28, 2019PPBI↓ Sell$1.3M
May 24, 2018PPBI↓ Sell$1.6M
Feb 27, 2018PPBI↓ Sell$2.4M
Oct 27, 2017PPBI↓ Sell$513K
Sep 12, 2017PPBI↓ Sell$691K
Aug 22, 2017PPBI↓ Sell$593K
Mar 3, 2017PPBI↓ Sell$200K
Dec 15, 2016PPBI↓ Sell$418K
Nov 30, 2015PPBI↓ Sell$199K
Aug 11, 2015PPBI↓ Sell$194K
Oct 29, 2014PPBI↓ Sell$476K
Apr 25, 2014PPBI↑ Buy$142K
Nov 21, 2013PPBI↑ Buy$71K
Feb 22, 2012PPBI↑ Buy$7K
Feb 14, 2012PPBI↑ Buy$7K
Aug 4, 2011PPBI↑ Buy$12K
Aug 1, 2011PPBI↑ Buy$1K
Sep 1, 2010PPBI↑ Buy$10K
Jul 28, 2010PPBI↑ Buy$23K
Nov 9, 2009PPBI↑ Buy$75K
Nov 4, 2008PPBI↑ Buy$958
Nov 3, 2008PPBI↑ Buy$8K
Aug 6, 2008PPBI↑ Buy$22K
Aug 8, 2007PPBI↑ Buy$10K
May 23, 2007PPBI↑ Buy$20K
Aug 3, 2006PPBI↑ Buy$29K
Oct 26, 2005PPBI↑ Buy$12K
Oct 24, 2005PPBI↑ Buy$6K
Aug 12, 2005PPBI↑ Buy$22K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other COLB insiders

Open-market trades in the last 12 months

About Steven R Gardner's insider trades

Steven R Gardner is a director at Columbia Banking System (COLB). Since Aug 12, 2005, Steven has reported 18 open-market purchases worth $480K and 18 sales worth $17.5M on SEC Form 4. In the last 12 months: 2 sales ($733K).

Their filings also include grants and awards (21 filings), shares withheld for taxes (20 filings), option exercises (19 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every COLB insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.