TD Waterhouse Canada Inc. PRM — PERIMETER SOLUTIONS INC

Ownership history in TD Waterhouse Canada Inc.  ·  8 quarters on record

AI Ownership Summary

TD Waterhouse Canada Inc. reported PERIMETER SOLUTIONS INC (PRM) in 8 quarterly 13F filings from 2024 Q4 through 2026 Q3. Peak portfolio weight reached 0.04% in 2025 Q4. The latest visible filing shows PRM at 0.02% 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 PRM ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was TD Waterhouse Canada Inc.'s position in PERIMETER SOLUTIONS 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 Q3

PRM was reported at 0.02% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.04% 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 Q4 to 2026 Q3

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.

How TD Waterhouse Canada Inc. held PRM — position size vs. price
% of Fund (quarterly)    PRM 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 Q3 REDUCED — — — 212,215 -130 -0.1% 0.02% $5.8M 2026-10-16 $26.54
2026 Q2 ADDED — — — 212,345 +151,765 +250.5% 0.02% $7.4M 2026-07-27 $33.32
2026 Q1 REDUCED 71.0% +34.0% ❌ 60,580 -148,549 -71.0% 0.00% $1.6M 2026-05-12 $32.10
2025 Q4 ADDED — — — 209,129 +148,529 +245.1% 0.04% $5.8M 2026-01-27 $26.73
2025 Q3 ADDED — — — 60,600 +7,980 +15.2% 0.01% $1.3M 2025-11-03 $23.71
2025 Q2 UNCHANGED — — — 52,620 — 0% 0.01% $741K 2025-08-11 $17.81
2025 Q1 UNCHANGED — — — 52,620 — 0% 0.00% $537K 2025-05-09 $11.62
2024 Q4 INITIATED — — — 52,620 — — 0.01% $671K 2025-02-13 $11.95

FAQ About TD Waterhouse Canada Inc. and PRM

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

How long has TD Waterhouse Canada Inc. reported owning PRM?

TD Waterhouse Canada Inc. reported PRM across 8 quarterly 13F filings, from 2024 Q4 through 2026 Q3.

What was the largest reported PRM position in TD Waterhouse Canada Inc.'s portfolio?

The largest reported portfolio weight for PRM was 0.04% in 2025 Q4.

What is the latest reported PRM position on this page?

The most recent filing on this page is 2026 Q3, when TD Waterhouse Canada Inc. reported 212,215 shares, equal to 0.02% of portfolio, with an estimated market value of $5.8M.

What does the chart on this PRM ownership page compare?

The chart compares TD Waterhouse Canada Inc.'s quarterly PRM 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 TD Waterhouse Canada Inc. time their PRM position?

Based on 13F filing dates vs. subsequent PRM price moves, TD Waterhouse Canada Inc. correctly timed 2 out of 5 reported position changes (40%). The annualised alpha on PRM relative to SPY over the holding period was +965.8%.

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