Profound Medical Corp.
US ˙ NasdaqCM ˙ CA74319B5027

SecurityPROF / Profound Medical Corp.
InstitutionArdsley Advisory Partners Lp
Latest Disclosed Ownership575,000 shares
Latest Disclosed Value $ 3,726,000
Ardsley Advisory Partners Lp reports 27.78% increase in ownership of PROF / Profound Medical Corp.

On May 15, 2026 - Ardsley Advisory Partners Lp filed a 13F-HR form disclosing ownership of 575,000 shares of Profound Medical Corp. (US:PROF) valued at $3,726,000 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 450,000 shares of Profound Medical Corp.. This represents a change in shares of 27.78% during the quarter. The current value of the position is $3,766,250 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F PROFOUND MED COM NEW 74319B502 575,000 125,000 27.78 3,726 5.22 0.4750
2026-02-17 2025-12-31 13F PROFOUND MED COM NEW 74319B502 450,000 120,000 36.36 3,542 119.53 0.3887
2025-11-14 2025-09-30 13F PROFOUND MED COM NEW 74319B502 330,000 0 0.00 1,614 -17.15 0.1996
2025-08-14 2025-06-30 13F PROFOUND MED COM NEW 74319B502 330,000 35,000 11.86 1,947 13.46 0.2560
2025-05-15 2025-03-31 13F PROFOUND MED COM NEW 74319B502 295,000 0 0.00 1,717 -22.53 0.3286
2025-02-14 2024-12-31 13F PROFOUND MED COM NEW 74319B502 295,000 20,000 7.27 2,215 1.19 0.3513
2024-11-14 2024-09-30 13F PROFOUND MED COM NEW 74319B502 275,000 60,000 27.91 2,189 21.41 0.3601
2024-08-14 2024-06-30 13F PROFOUND MED COM NEW 74319B502 215,000 70,000 48.28 1,804 45.87 0.2650
2024-05-15 2024-03-31 13F PROFOUND MED COM NEW 74319B502 145,000 145,000 1,237 0.1777
2020-05-15 2020-03-31 13F PROFOUND MED COM NEW 74319B502 0 -10,000 -100.00 0 -100.00
2020-02-14 2019-12-31 13F PROFOUND MED COM NEW 74319B502 10,000 10,000 114 0.0182
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.