Ausbil Investment Management Ltd COLB — Columbia Banking System Inc

Ownership history in Ausbil Investment Management Ltd  ·  8 quarters on record

AI Ownership Summary

Ausbil Investment Management Ltd reported Columbia Banking System Inc (COLB) in 8 quarterly 13F filings from 2024 Q2 through 2026 Q1. Peak portfolio weight reached 0.7% in 2025 Q4. The latest visible filing shows COLB at 0.61% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this COLB ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Ausbil Investment Management Ltd's position in Columbia Banking System Inc, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

COLB was reported at 0.61% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.7% in 2025 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q2 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

COLB stock page Ausbil Investment Management Ltd fund profile Ausbil Investment Management Ltd full holdings
How Ausbil Investment Management Ltd held COLB — position size vs. price
% of Fund (quarterly)    COLB price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 8 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 UNCHANGED — — — 44,001 — 0% 0.61% $1.2M 2026-04-08 $28.52
2025 Q4 ADDED — — — 44,001 +8,491 +23.9% 0.70% $1.2M 2026-01-13 $27.60
2025 Q3 ADDED — — — 35,510 +28,806 +429.7% 0.49% $922K 2025-10-09 $24.71
2025 Q2 UNCHANGED — — — 6,704 — 0% 0.09% $157K 2025-07-17 $23.13
2025 Q1 REDUCED 82.5% -4.8% ✅ 6,704 -31,611 -82.5% 0.10% $167K 2025-04-23 $22.01
2024 Q4 REDUCED 47.1% -6.4% ✅ 38,315 -34,098 -47.1% 0.62% $1.0M 2025-01-23 $25.98
2024 Q3 ADDED — — — 72,413 +59,996 +483.2% 0.65% $1.9M 2024-10-23 $24.71
2024 Q2 INITIATED — — — 12,417 — — 0.11% $247K 2024-07-30 $23.60

🏢 Other funds also holding COLB

As of 2026 Q1 — sorted by position size

HoldCo Asset Management, LP 3Y 11.68% Stieven Capital Advisors, L.P. 3Y 7Y 6.95% PMC FIG Opportunities LLC 4.97% Expect Equity LLC 3.77% LONE PEAK GLOBAL INVESTORS LLC 3Y 7Y 2.45% Channing Capital Management, LLC 3Y 7Y 2.27% Elizabeth Park Capital Advisors, Ltd. 3Y 7Y 2.1% Sippican Capital Advisors 3Y 7Y 1.99% MALTESE CAPITAL MANAGEMENT LLC 3Y 7Y 1.85% Rhino Investment Partners, Inc 3Y 1.83%

FAQ About Ausbil Investment Management Ltd and COLB

These are the practical questions this page is built to answer before you even open the full history table.

How long has Ausbil Investment Management Ltd reported owning COLB?

Ausbil Investment Management Ltd reported COLB across 8 quarterly 13F filings, from 2024 Q2 through 2026 Q1.

What was the largest reported COLB position in Ausbil Investment Management Ltd's portfolio?

The largest reported portfolio weight for COLB was 0.70% in 2025 Q4.

What is the latest reported COLB position on this page?

The most recent filing on this page is 2026 Q1, when Ausbil Investment Management Ltd reported 44,001 shares, equal to 0.61% of portfolio, with an estimated market value of $1.2M.

What does the chart on this COLB ownership page compare?

The chart compares Ausbil Investment Management Ltd's quarterly COLB portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did Ausbil Investment Management Ltd time their COLB position?

Based on 13F filing dates vs. subsequent COLB price moves, Ausbil Investment Management Ltd correctly timed 5 out of 6 reported position changes (83%). The annualised alpha on COLB relative to SPY over the holding period was -3.1%.

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