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Aaron James Deer

COLB
CHIEF STRATEGY/INNOVATION OFFC · COLUMBIA BANKING SYSTEM, INC. · CIK 0001810107
FILING MIX · LIFETIME67%/33%
BUYS
34
SELLS
17
TOTAL VALUE
$1.79M
COMPANIES
1
ACTIVE SINCE
May 2020
HOLDINGS NOW
42,761
AVG SELL PX
$26.55
TRADE KIND
SHOWING 51 / 51
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
7 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Aaron James Deer, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d7+71.43%+1.32%+0.13%+1.20%+1.25%—
14d7+28.57%+0.13%-0.17%+0.30%-0.14%—
30d7+57.14%+2.75%+3.63%-0.87%-3.90%—
60d7+57.14%-0.17%+2.73%-2.90%-4.88%—
90d7+71.43%+0.13%-0.52%+0.65%-0.22%—
180d7+57.14%+9.23%+5.55%+3.68%+2.94%—
1y7+14.29%-7.85%+9.76%-17.60%-26.41%—
2y7+28.57%-14.49%+27.88%-42.37%-46.81%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
COLB · 42,761 shares · as of Jun 30, 2026
011,14622,29233,43744,583202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 34 buys / 17 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
EVP Chief Strategy/Innov Offcr
886$25.37$22.5K42,761Jun 30, 2026Jul 2, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
EVP Chief Strategy/Innov Offcr
617$26.23$16.2K41,875Mar 13, 2026Mar 17, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
EVP Chief Strategy/Innov Offcr
1,567$26.23$41.1K42,492Mar 13, 2026Mar 17, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
EVP Chief Strategy/Innov Offcr
1,567——7,133Mar 13, 2026Mar 17, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
EVP Chief Strategy/Innov Offcr
918$28.45$26.1K40,925Mar 1, 2026Mar 2, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
4,001$31.24$125.0K8,700Feb 18, 2026Feb 20, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
EVP Chief Strategy/Innov Offcr
531$31.49$16.7K41,843Feb 15, 2026Feb 18, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
2,620$29.69$77.8K43,565Feb 2, 2026Feb 4, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
EVP Chief Strategy/Innov Offcr
1,191$29.69$35.4K42,374Feb 2, 2026Feb 4, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
EVP Chief Strategy/Innov Offcr
776$28.35$22.0K40,945Jan 20, 2026Jan 22, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
EVP Chief Strategy/Innov Offcr
325——41,721Jan 20, 2026Jan 22, 2026 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
918$26.73$24.5K42,046Feb 28, 2025Mar 4, 2025 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
4,699$26.60$125.0K4,699Feb 25, 2025Feb 26, 2025 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
2,349$26.60$62.5K11,692Feb 25, 2025Feb 26, 2025 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
2,349$26.60$62.5K9,343Feb 25, 2025Feb 26, 2025 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
1,304$27.41$35.7K44,003Feb 14, 2025Feb 18, 2025 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
506$27.41$13.9K43,497Feb 14, 2025Feb 18, 2025 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
533$27.41$14.6K42,964Feb 14, 2025Feb 18, 2025 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
995$27.01$26.9K42,699Jan 1, 2025Jan 3, 2025 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
889$27.01$24.0K43,694Jan 1, 2025Jan 3, 2025 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
3,497$17.87$62.5K6,994Mar 1, 2024Mar 4, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
3,497$17.87$62.5K3,497Mar 1, 2024Mar 4, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
6,994$17.87$125.0K44,583Mar 1, 2024Mar 4, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
430$19.01$8.2K37,371Feb 15, 2024Feb 20, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
564$19.01$10.7K38,111Feb 15, 2024Feb 20, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
951$19.01$18.1K37,801Feb 15, 2024Feb 20, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
1,304$19.01$24.8K38,675Feb 15, 2024Feb 20, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
522$19.01$9.9K37,589Feb 15, 2024Feb 20, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
Chief Strategy/Innovation Offc
2,000$19.32$38.6K36,850Feb 1, 2024Feb 1, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
647$26.68$17.3K34,850Jan 1, 2024Jan 3, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
SALE
Chief Strategy/Innovation Offc
647$26.68$17.3K35,497Jan 1, 2024Jan 3, 2024 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
Chief Strategy/Innovation Offc
854$18.25$15.6K36,144Jun 30, 2023Jul 5, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
1,430——31,135Feb 28, 2023Mar 2, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
1,960——35,290Feb 28, 2023Mar 2, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
1,430——29,705Feb 28, 2023Mar 2, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
2,195——33,330Feb 28, 2023Mar 2, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
2,031——28,274Feb 21, 2023Feb 23, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
2,357——22,181Feb 21, 2023Feb 23, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
4,062——26,243Feb 21, 2023Feb 23, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
951$32.05$30.5K18,519Feb 15, 2023Feb 17, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
1,305$32.05$41.8K19,824Feb 15, 2023Feb 17, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
1,393$32.05$44.6K17,568Feb 15, 2023Feb 17, 2023 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
EVP Chief Financial Officer
748$25.79$19.3K16,175Jun 30, 2022Jul 1, 2022 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
EVP Chief Financial Officer
3,000$28.00$84.0K15,427May 2, 2022May 4, 2022 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
EVP Chief Financial Officer
3,000$33.45$100.4K12,427Feb 24, 2022Feb 24, 2022 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
952$36.75$35.0K8,034Feb 15, 2022Feb 17, 2022 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
1,393$36.75$51.2K9,427Feb 15, 2022Feb 17, 2022 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
EVP Chief Financial Officer
711$31.64$22.5K7,082Jul 6, 2021Jul 6, 2021 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASEGRANT
Stock grant
1,436$43.09$61.9K5,436Feb 15, 2021Feb 17, 2021 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
EVP Chief Financial Officer
935$24.06$22.5K6,371Feb 15, 2021Feb 17, 2021 ↗View →
COLB
COLUMBIA BANKING SYSTEM, INC.
PURCHASE
EVP Chief Financial Officer
4,000$22.99$92.0K4,000May 6, 2020May 7, 2020 ↗View →
Other insiders · COLB
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About this filer
CIK 0001810107
ROLE
Chief Strategy/Innovation Offc
PRIMARY
COLB
COMPANIES
1
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001810107DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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