LOUISBOURG INVESTMENTS INC. CNI — CANADIAN NATIONAL RAILWAY COMPANY

Ownership history in LOUISBOURG INVESTMENTS INC.  ·  7 quarters on record

AI Ownership Summary

LOUISBOURG INVESTMENTS INC. reported CANADIAN NATIONAL RAILWAY COMPANY (CNI) in 7 quarterly 13F filings from 2024 Q4 through 2026 Q2. Peak portfolio weight reached 8.79% in 2024 Q4. The latest visible filing shows CNI at 5.53% 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 CNI ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was LOUISBOURG INVESTMENTS INC.'s position in CANADIAN NATIONAL RAILWAY COMPANY, 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 Q2

CNI was reported at 5.53% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
8.79% in 2024 Q4

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

Time in book
Holding Window
2024 Q4 to 2026 Q2

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.

CNI stock page LOUISBOURG INVESTMENTS INC. fund profile LOUISBOURG INVESTMENTS INC. full holdings
How LOUISBOURG INVESTMENTS INC. held CNI — position size vs. price
% of Fund (quarterly)    CNI price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 7 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q2 REDUCED — — — 251,810 -35,585 -12.4% 5.53% $30.0M 2026-07-23 $129.88
2026 Q1 REDUCED — — — 287,395 -2,551 -0.9% 5.58% $29.5M 2026-04-22 $108.23
2025 Q4 REDUCED — — — 289,946 -12,197 -4.0% 5.72% $28.7M 2026-01-16 $98.41
2025 Q3 ADDED — — — 302,143 +9,729 +3.3% 6.22% $28.5M 2025-10-09 $93.86
2025 Q2 ADDED — — — 292,414 +3,295 +1.1% 7.17% $30.4M 2025-07-24 $93.18
2025 Q1 ADDED — — — 289,119 +58,565 +25.4% 7.65% $28.2M 2025-04-17 $96.24
2024 Q4 INITIATED — — — 230,554 — — 8.79% $29.1M 2025-01-29 $101.79

🏢 Other funds also holding CNI

As of 2026 Q2 — sorted by position size

GATES FOUNDATION TRUST 3Y 7Y 17.95% Haven Global Partners, LLC 17.1% Templeton & Phillips Capital Management, LLC 3Y 9.17% Troy Asset Management Ltd 3Y 7Y 8.99% Scheer, Rowlett & Associates Investment Management Ltd. 3Y 7Y 6.24% HARDING LOEVNER LP 3Y 7Y 6.1% Harrison Street Private Wealth LLC 5.76% QV Investors Inc. 3Y 7Y 5.43% MORGUARD LINCLUDEN GLOBAL INVESTMENTS Ltd 3Y 7Y 5.38% Burkett Asset Management Ltd 5.14%

FAQ About LOUISBOURG INVESTMENTS INC. and CNI

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

How long has LOUISBOURG INVESTMENTS INC. reported owning CNI?

LOUISBOURG INVESTMENTS INC. reported CNI across 7 quarterly 13F filings, from 2024 Q4 through 2026 Q2.

What was the largest reported CNI position in LOUISBOURG INVESTMENTS INC.'s portfolio?

The largest reported portfolio weight for CNI was 8.79% in 2024 Q4.

What is the latest reported CNI position on this page?

The most recent filing on this page is 2026 Q2, when LOUISBOURG INVESTMENTS INC. reported 251,810 shares, equal to 5.53% of portfolio, with an estimated market value of $30.0M.

What does the chart on this CNI ownership page compare?

The chart compares LOUISBOURG INVESTMENTS INC.'s quarterly CNI 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 LOUISBOURG INVESTMENTS INC. time their CNI position?

Based on 13F filing dates vs. subsequent CNI price moves, LOUISBOURG INVESTMENTS INC. correctly timed 2 out of 6 reported position changes (33%). The annualised alpha on CNI relative to SPY over the holding period was +1.5%.

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