The filing is an advance notice of intent to sell, not a completed transaction. Monitor for the actual sale on Form 4 and any subsequent insider selling patterns. The director's sale is small relative to market cap and may be for personal liquidity or diversification.
How the stock moved after the report
NEUTRAL VIEWSTOCK BELOW ENTRY AT T+5- T+0 · Oct 29 $31.01entry
- T+1 · 7d ago −1.00%α +0.77% · $30.70
- T+5 · 15h ago −1.89%α +2.84% · $30.43
- T+20 · in 21d Pending
- T+60 · in 3mo Pending
Price Chart
REPLAYWatch the reaction play outHow similar events traded
Executive Summary
Director Steven R. Gardner filed a Form 144 notice of intent to sell 10,522 shares of Columbia Banking System, Inc. (COLB), with an approximate market value of $328,616.53 based on the filing date. The shares were acquired through open market purchases between 2011 and 2024, and the sale is planned for execution on or after October 29, 2026. As a director, this sale is notable but not necessarily indicative of a change in company fundamentals.
Key Facts
- Insider: Steven R. Gardner, Director of Columbia Banking System, Inc.
- Proposed sale of 10,522 shares of common stock
- Approximate market value: $328,616.53
- Shares acquired via open market purchases on 08/01/2011 (180 shares), 08/04/2011 (1,650 shares), and 10/03/2024 (8,692 shares)
- Proposed sale date: October 29, 2026
- Broker: Fidelity Brokerage Services LLC
Financial Impact
Proposed sale of 10,522 shares valued at approximately $328,617, representing roughly 0.0037% of the company's $8.8B market cap.
Risk Factors
- Form 144 is only an intent to sell; the sale may not be executed.
- Insider selling by a director could be perceived negatively by the market, though the amount is small.
- No context on Gardner's total holdings is provided, so the proportion of his stake being sold is unknown.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001959173-26-007540 |
| Document: 0001959173-26-007540-index.html | 0001959173-26-007540 |
| Document: 0001959173-26-007540.txt | 0001959173-26-007540 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 29, 2026 7d ago | 144 | $31.01 $30.70 | ▼ −1.00% | ▲ +0.77% | $30.43 (−1.87%) |
Oct 27, 2026 9d ago | 8-K | $30.72 $31.01 | ▲ +0.94% | ▲ +1.33% | $30.43 (−0.94%) |
Oct 22, 2026 14d ago | 8-K | $30.86 $31.06 | ▲ +0.66% | ▼ −0.05% | $30.43 (−1.38%) |
Oct 21, 2026 15d ago | Institutional Cluster | $29.89 $30.86 | ▲ +3.23% | ▲ +3.75% | $30.43 (+1.81%) |
Sep 30, 2026 5w ago | 8-K | $28.73 $28.92 | ▲ +0.66% | ▼ −0.08% | $30.43 (+5.92%) |
Aug 21, 2026 10w ago | Institutional Cluster | $30.81 $30.64 | ▼ −0.55% | ▼ −0.26% | $30.43 (−1.23%) |
Jul 30, 2026 14w ago | 8-K | $31.27 $31.50 | ▲ +0.74% | ▼ −0.69% | $30.43 (−2.69%) |
Jun 24, 2026 19w ago | Institutional Cluster | $31.53 $32.07 | ▲ +1.71% | ▲ +1.57% | $30.43 (−3.49%) |
Jun 11, 2026 21w ago | Institutional Cluster | $30.82 $31.31 | ▲ +1.59% | ▲ +1.05% | $30.43 (−1.27%) |
May 15, 2026 24w ago | 8-K | $28.77 $29.01 | ▲ +0.83% | ▲ +0.90% | $30.43 (+5.77%) |
US Market Status
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