COLB
COLUMBIA BANKING SYSTEM, INC. · Finance & Insurance · Market cap $8.5B
Insiders bought $22K net in the last 90 days ·0 sellers, 1 buyer· latest Form 4 filed Jul 2, 2026
Insider Buying
$22K
reported purchases (SEC code P)
Insider Selling
$677K
reported sales (SEC code S)
Unique Insiders
6
in the rolling window
Latest filing
Sep 8, 2026
Deer Aaron James
COLUMBIA BANKING SYSTEM, INC. (COLB) has 67 SEC Form 4 filings (102 transaction rows) in the rolling window, disclosed by 6 distinct insiders. Most recent filing: Sep 8, 2026.
Inside the rolling window, 6 insiders at COLUMBIA BANKING SYSTEM, INC. reported 1 open-market purchase totaling $22K and 6 open-market sales totaling $677K. Insiders have net sold $123K over the trailing 6 months. The most recent open-market filing is a purchase of 886 shares by EVP Chief Strategy/Innov Offcr Deer Aaron James, dated Jun 30, 2026, worth $22K.
- Industry:Banks - Regional
- CEO:Clint Stein
- Employees:6,005
- HQ:Tacoma, WA, US
- IPO:1992-06-16
| Source | |||||||
|---|---|---|---|---|---|---|---|
Deer Aaron JamesFirst filing | EVP Chief Strategy/Innov Offcr | Purchase | 886 | $22K | Jul 2 | -5.1% | SEC ↗ |
Moore Devine DavidFirst filing | EVP Chief Marketing Officer | Sale | 3,872 | $115K | Jun 10 | -0.7% | SEC ↗ |
Lakely BrockFirst filing | EVP, Chief Accounting Officer | Sale | 211 | $6K | Mar 17 | +13.8% | SEC ↗ |
BARUFFI KUMI YAMAMOTOFirst filing | EVP General Counsel, Corp Sec | Sale | 937 | $25K | Mar 17 | +13.8% | SEC ↗ |
Nixon Torran BFirst filing | Senior Executive VP | Sale | 2,241 | $63K | Mar 5 | +7.5% | SEC ↗ |
Nixon Torran BFirst filing | Senior Executive VP | Sale | 2,240 | $65K | Mar 5 | +7.5% | SEC ↗ |
GARDNER STEVEN RFirst filing | Director | Sale | 13,725 | $404K | Feb 3 | -1.1% | SEC ↗ |
Congress trading COLB 6 all-time
- DRep. Josh S. GottheimerSale$1,001 - $15,0002026-03-05
- DRep. Josh S. GottheimerSale$1,001 - $15,0002026-03-05
- DRep. Gilbert Ray CisnerosOther$15,001 - $50,0002026-01-15
- DRep. Gilbert Ray CisnerosPurchase$1,001 - $15,0002025-10-03
- DRep. Daniel GoldmanPurchase$15,001 - $50,0002023-04-10
- DRep. Daniel GoldmanPurchase$15,001 - $50,0002023-04-10
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does COLB have?
COLUMBIA BANKING SYSTEM, INC. (COLB) has 67 SEC Form 4 filings (102 transaction rows) in the rolling 365-day window, disclosed by 6 distinct insiders. Most recent filing: Sep 8, 2026.
When was the most recent SEC Form 4 filing for COLB?
The most recent Form 4 filing for COLB on Tracefour is dated Sep 8, 2026.
What is the net insider flow at COLB over the last 6 months?
Over the trailing 180 days, insiders at COLB have net sold $123K based on SEC Form 4 disclosures.
What is the total insider buy and sell value at COLB in the current window?
Inside the rolling window, insiders at COLB bought $22K and sold $677K based on SEC Form 4 filings.
Can I get alerts for COLB insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at COLUMBIA BANKING SYSTEM, INC. (COLB). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
COLUMBIA BANKING SYSTEM, INC. is in the Finance & Insurance sector.