Columbia Banking System COLB Insider Ownership

NASDAQ COLB
$29.84 -0.43 (-1.42%)
As of: Sep 9, 2026 · 3:59 PM EDT

Insider Holdings by Owner

2.17Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
1.05%
▼-0.100% pp QoQ
Shares Held by Insiders
2.52Mn
filed for Sep 2026
▼-8.67% QoQ
Shares Outstanding
238.93Mn
238,925,000 shares
Direct Holdings
2.17Mn
Indirect: 342.06K
Net Shares Traded (QoQ)
-238.88K
net selling in Sep 2026
Insiders Holding Shares
41
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

Columbia Banking System's three largest insider shareholders as of September 09, 2026 are Steven R Gardner (Director, 584.10K shares), Steven R Gardner (Director, 584.10K shares), Cort L O'Haver (Executive Chairman, 390.82K shares).

Form 4 Holdings

Insiders Holding COLB

Insiders 41
Shares held 2.17Mn
Of outstanding 0.910%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Cort L O'Haver Executive Chairman 390,824 0 390,824 18.0% 04 Mar, 2025
2 Clint Stein Chair, Ceo, President 151,584 0 151,584 7.0% 17 Mar, 2026
3 Ron L Farnsworth Chief Financial Officer 141,162 0 141,162 6.5% 04 Mar, 2025
4 Torran B Nixon Senior Executive Vp 101,240 0 101,240 4.7% 17 Mar, 2026
5 Kumi Yamamoto Baruffi Evp General Counsel, Corp Sec 96,879 0 96,879 4.5% 20 Mar, 2026
6 Christopher Merrywell Senior Executive Vp 91,991 0 91,991 4.2% 17 Mar, 2026
7 Aaron James Deer Evp Chief Strategy/Innov Offcr 78,051 0 78,051 3.6% 02 Jul, 2026
8 Andrew H Ognall Evp Chief Risk Officer 74,132 0 74,132 3.4% 17 Mar, 2026
9 Tom Hulbert Director 69,990 0 69,990 3.2% 29 Nov, 2021
10 Lisa Dow Chief Risk Officer 64,381 0 64,381 3.0% 04 Mar, 2025
11 Craig D Eerkes Director 57,311 0 57,311 2.6% 14 May, 2024
12 Hilliard C. Iii Terry Director 55,514 0 55,514 2.6% 18 May, 2026
13 Mark A Finkelstein Director 51,194 0 51,194 2.4% 18 May, 2026
14 John F Schultz Director 50,384 0 50,384 2.3% 18 May, 2026
15 Andy Mcdonald Evp Chief Credit Officer 49,686 0 49,686 2.3% 02 Mar, 2023
16 Maria M Pope Director 47,569 0 47,569 2.2% 16 May, 2025
17 Ford Elsaesser Director 46,586 0 46,586 2.1% 23 Feb, 2023
18 Sheri Burns Chief Human Resources Officer 42,488 0 42,488 2.0% 12 Mar, 2024
19 M Christian Mitchell Director 41,909 0 41,909 1.9% 18 May, 2026
20 Randal Lee Lund Director 39,136 0 39,136 1.8% 18 May, 2026
21 S Mae Fujita Numata Director 38,338 0 38,338 1.8% 16 May, 2025
22 Devine David Moore Evp Chief Marketing Officer 38,222 0 38,222 1.8% 10 Jun, 2026
23 Eric Forrest Director 36,351 0 36,351 1.7% 18 May, 2026
24 Frank Namdar Evp Chief Credit Officer 31,923 0 31,923 1.5% 17 Mar, 2026
25 Anddria Varnado Director 30,894 0 30,894 1.4% 18 May, 2026
26 Luis Machuca Director 29,953 0 29,953 1.4% 18 May, 2026
27 Eric J Eid Evp Chief Digital Tech Off 29,243 0 29,243 1.3% 02 Mar, 2023
28 Lisa M White Pao Corporate Controller 29,045 0 29,045 1.3% 04 Mar, 2025
29 David C Lawson Evp Chief H.R. Officer 28,152 0 28,152 1.3% 02 Mar, 2023
30 Michelle Lantow Director 23,140 0 23,140 1.1% 23 Feb, 2023
31 Drew K Anderson Evp Chief Admin Officer 21,969 0 21,969 1.0% 17 Mar, 2026
32 Jaynie M Studenmund Director 21,807 0 21,807 1.0% 18 May, 2026
33 Elizabeth Whitehead Seaton Director 21,589 0 21,589 1.0% 18 May, 2026
34 Brock Lakely Evp, Chief Accounting Officer 16,902 0 16,902 0.8% 16 Apr, 2026
35 Janine Terrano Director 10,474 0 10,474 0.5% 23 Feb, 2023
36 Peggy Y Fowler Director 8,211 0 8,211 0.4% 14 May, 2024
37 Laura Alvarez Schrag Director 4,236 0 4,236 0.2% 23 Feb, 2023
38 Tracy Mack-Askew Director 4,236 0 4,236 0.2% 23 Feb, 2023
39 Simone Lagomarsino Director 2,670 0 2,670 0.1% 04 Sep, 2026
40 Steven R Gardner Director 2,577 0 2,577 0.1% 08 Sep, 2026
41 Judi Giem Evp Chro 1,750 0 1,750 0.1% 18 Aug, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

4,950 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
04 Sep, 2026 Steven R Gardner Director Acquired A 2,577 $0.00 $0 2,577 Direct
02 Sep, 2026 Simone Lagomarsino Director Acquired A 2,670 $0.00 $0 2,670 Direct
14 Aug, 2026 Judi Giem Evp Chro Acquired M 2,393 $32.69 $78.23K 2,393 Direct
14 Aug, 2026 Judi Giem Evp Chro Disposed F 643 $32.69 $21.02K 1,750 Direct
14 Aug, 2026 Judi Giem Evp Chro Disposed M 2,393 — — 13,108 Direct
30 Jun, 2026 Aaron James Deer Evp Chief Strategy/Innov Offcr Acquired P 886 $25.37 $22.48K 42,761 Direct
15 Jun, 2026 Luis Machuca Director Acquired A 563 $31.78 $17.89K 48,966 Indirect
08 Jun, 2026 Devine David Moore Evp Chief Marketing Officer Disposed S 60 $29.77 $1.79K 22,448 Direct
08 Jun, 2026 Devine David Moore Evp Chief Marketing Officer Disposed S 3,812 $29.78 $113.50K 18,636 Direct
14 May, 2026 Mark A Finkelstein Director Acquired A 3,949 $0.00 $0 35,554 Direct
14 May, 2026 Randal Lee Lund Director Acquired A 3,949 $0.00 $0 27,663 Direct
14 May, 2026 Anddria Varnado Director Acquired A 3,949 $0.00 $0 30,894 Direct
14 May, 2026 Eric Forrest Director Acquired A 3,949 $0.00 $0 36,351 Direct
14 May, 2026 Jaynie M Studenmund Director Acquired A 3,949 $0.00 $0 21,807 Direct
14 May, 2026 Elizabeth Whitehead Seaton Director Acquired A 3,949 $0.00 $0 3,949 Direct
14 May, 2026 John F Schultz Director Acquired A 3,949 $0.00 $0 50,384 Direct
14 May, 2026 Luis Machuca Director Acquired A 3,949 $0.00 $0 29,953 Direct
14 May, 2026 M Christian Mitchell Director Acquired A 3,949 $0.00 $0 41,909 Direct
15 Apr, 2026 Brock Lakely Evp, Chief Accounting Officer Disposed F 396 $29.10 $11.52K 10,708 Direct
13 Mar, 2026 Brock Lakely Evp, Chief Accounting Officer Disposed F 211 $26.23 $5.53K 11,104 Direct