Who owns Profound Medical Corp. (PROF)
Which tracked institutional funds hold PROF, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See PROF company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-20). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
8 tracked funds added or opened PROF while 21 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
PROF’s largest tracked holder by dollar value, FIL Ltd, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in PROF divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 57 tracked filers holding PROF, 31 increased or opened the position and 23 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in PROF between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 2
- Lagoda Investment Management, L.P.$3M
- PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE$2M
Full exits 6
- Alyeska Investment Group, L.P.$5M
- ESSEX INVESTMENT MANAGEMENT CO LLC$2M
- Empery Asset Management, LP$1M
- Zweig-DiMenna Associates LLC$1M
- Connective Capital Management, LLC$787K
- Legato Capital Management LLC$784K
Largest adds
- Dauntless Investment Group, LLC$965K
- MMCAP International Inc. SPC$647K
- CM Management, LLC$504K
- UBS Group AG$482K
- T3 Companies, LLC$324K
- TD Waterhouse Canada Inc.$320K
Largest trims
- Rosalind Advisors, Inc.$3M
- GAGNON SECURITIES LLC$3M
- FIL Ltd$2M
- LETKO, BROSSEAU & ASSOCIATES INC$2M
- Gagnon Advisors, LLC$1M
- Z3 Capital Partners, LLC$1M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| FIL Ltd added | 2,340,000 | $15M | 12.2% | 2026-Q1 |
| GAGNON SECURITIES LLC added | 1,944,324 | $13M | 10.1% | 2026-Q1 |
| Timelo Investment Management Inc. added | 1,114,967 | $7M | 5.8% | 2026-Q1 |
| ROYCE & ASSOCIATES LP added | 1,116,348 | $7M | 5.7% | 2026-Q1 |
| Gagnon Advisors, LLC | 962,186 | $6M | 5.0% | 2026-Q1 |
| LETKO, BROSSEAU & ASSOCIATES INC trimmed | 953,175 | $6M | 4.9% | 2026-Q1 |
| Rosalind Advisors, Inc. trimmed | 828,118 | $5M | 4.3% | 2026-Q1 |
| Z3 Capital Partners, LLC trimmed | 817,991 | $5M | 4.3% | 2026-Q1 |
| MMCAP International Inc. SPC added | 745,152 | $5M | 3.9% | 2026-Q1 |
| ARDSLEY ADVISORY PARTNERS LP added | 575,000 | $4M | 3.0% | 2026-Q1 |
| Ring Mountain Capital, LLC added | 511,105 | $3M | 2.7% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 493,060 | $3M | 2.6% | 2026-Q1 |
| Lagoda Investment Management, L.P. new | 441,015 | $3M | 2.3% | 2026-Q1 |
| First Eagle Investment Management, LLC added | 322,707 | $2M | 1.7% | 2026-Q1 |
| Velan Capital Investment Management LP | 285,710 | $2M | 1.5% | 2026-Q1 |
| PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE new | 276,001 | $2M | 1.4% | 2026-Q1 |
| DAFNA Capital Management LLC trimmed | 263,005 | $2M | 1.4% | 2026-Q1 |
| Bleichroeder LP | 254,753 | $2M | 1.3% | 2026-Q1 |
| FORMULA GROWTH LTD added | 241,138 | $2M | 1.3% | 2026-Q1 |
| Dauntless Investment Group, LLC added | 240,739 | $2M | 1.3% | 2026-Q1 |
| THOMPSON DAVIS & CO., INC. trimmed | 215,785 | $1M | 1.1% | 2026-Q1 |
| NATIONAL BANK OF CANADA /FI/ added | 217,175 | $1M | 1.1% | 2026-Q1 |
| CM Management, LLC added | 175,000 | $1M | 0.9% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 150,157 | $973K | 0.8% | 2026-Q1 |
| TD Waterhouse Canada Inc. added | 143,041 | $902K | 0.7% | 2026-Q1 |
| PERKINS CAPITAL MANAGEMENT INC | 114,280 | $741K | 0.6% | 2026-Q1 |
| T3 Companies, LLC added | 108,340 | $702K | 0.6% | 2026-Q1 |
| UBS Group AG added | 81,108 | $526K | 0.4% | 2026-Q1 |
| TRUIST FINANCIAL CORP | 50,000 | $324K | 0.3% | 2026-Q1 |
| Annis Gardner Whiting Capital Advisors, LLC new | 40,000 | $259K | 0.2% | 2026-Q1 |
| Northwest & Ethical Investments L.P. | 38,200 | $244K | 0.2% | 2026-Q1 |
| SIMPLEX TRADING, LLC added | 36,718 | $238K | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 36,687 | $238K | 0.2% | 2026-Q1 |
| HB Wealth Management, LLC new | 30,000 | $194K | 0.2% | 2026-Q1 |
| Centiva Capital, LP new | 29,280 | $190K | 0.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 21,346 | $138K | 0.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 18,707 | $121K | 0.1% | 2026-Q1 |
| Focus Partners Wealth | 16,722 | $108K | 0.1% | 2026-Q1 |
| MTM Investment Management, LLC trimmed | 16,275 | $105K | 0.1% | 2026-Q1 |
| Penbrook Management LLC new | 12,300 | $80K | 0.1% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ | 11,742 | $75K | 0.1% | 2026-Q1 |
| CAPTRUST FINANCIAL ADVISORS added | 10,398 | $67K | 0.1% | 2026-Q1 |
| PenderFund Capital Management Ltd. | 9,400 | $60K | 0.0% | 2026-Q1 |
| Rockefeller Capital Management L.P. | 6,654 | $43K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 5,592 | $36K | 0.0% | 2026-Q1 |
| BlackRock, Inc. | 4,670 | $30K | 0.0% | 2026-Q1 |
| OSAIC HOLDINGS, INC. added | 3,075 | $20K | 0.0% | 2026-Q1 |
| SOA Wealth Advisors, LLC. | 2,000 | $13K | 0.0% | 2026-Q1 |
| MCF Advisors LLC | 2,000 | $13K | 0.0% | 2026-Q1 |
| MORGAN STANLEY | 1,929 | $12K | 0.0% | 2026-Q1 |
| IFP Advisors, Inc | 1,200 | $8K | 0.0% | 2026-Q1 |
| JONES FINANCIAL COMPANIES LLLP | 1,000 | $6K | 0.0% | 2026-Q1 |
| Rachor Investment Advisory Services, LLC | 297 | $2K | 0.0% | 2026-Q1 |
| Caitong International Asset Management Co., Ltd new | 96 | $622 | 0.0% | 2026-Q1 |
| North Star Investment Management Corp. new | 58 | $376 | 0.0% | 2026-Q1 |
| Allworth Financial LP | 48 | $312 | 0.0% | 2026-Q1 |
| Parallel Advisors, LLC | 30 | $194 | 0.0% | 2026-Q1 |
| Alyeska Investment Group, L.P. added | 678,570 | $5M | 4.3% | 2025-Q4 stale |
| ESSEX INVESTMENT MANAGEMENT CO LLC new | 309,604 | $2M | 2.0% | 2025-Q4 stale |
| Altium Capital Management LLC trimmed | 360,589 | $2M | 1.7% | 2025-Q1 stale |
| PICTON MAHONEY ASSET MANAGEMENT added | 254,329 | $2M | 1.2% | 2025-Q2 stale |
| Empery Asset Management, LP new | 143,532 | $1M | 0.9% | 2025-Q4 stale |
| Zweig-DiMenna Associates LLC added | 130,000 | $1M | 0.8% | 2025-Q4 stale |
| Stonepine Capital Management, LLC trimmed | 139,942 | $814K | 0.7% | 2025-Q1 stale |
| Connective Capital Management, LLC new | 100,000 | $787K | 0.6% | 2025-Q4 stale |
| Legato Capital Management LLC new | 99,668 | $784K | 0.6% | 2025-Q4 stale |
| HOHIMER WEALTH MANAGEMENT, LLC new | 50,000 | $394K | 0.3% | 2025-Q4 stale |
| SEI INVESTMENTS CO new | 49,463 | $389K | 0.3% | 2025-Q4 stale |
| CHILTON INVESTMENT CO INC. trimmed | 65,000 | $378K | 0.3% | 2025-Q1 stale |
| Quadrature Capital Ltd new | 32,574 | $256K | 0.2% | 2025-Q4 stale |
| AYAL Capital Advisors Ltd trimmed | 41,308 | $244K | 0.2% | 2025-Q2 stale |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 28,853 | $227K | 0.2% | 2025-Q4 stale |
| MILLENNIUM MANAGEMENT LLC added | 26,824 | $211K | 0.2% | 2025-Q4 stale |
| CORSAIR CAPITAL MANAGEMENT, L.P. new | 26,420 | $208K | 0.2% | 2025-Q4 stale |
| Evernest Financial Advisors, LLC new | 31,500 | $205K | 0.2% | 2025-Q4 stale |
| Warberg Asset Management LLC new | 21,000 | $165K | 0.1% | 2025-Q4 stale |
| MARSHALL WACE, LLP trimmed | 20,801 | $121K | 0.1% | 2025-Q1 stale |
| Diametric Capital, LP new | 14,205 | $83K | 0.1% | 2025-Q1 stale |
| Kovitz Investment Group Partners, LLC | 16,722 | $82K | 0.1% | 2025-Q3 stale |
| NEUBERGER BERMAN GROUP LLC trimmed | 12,300 | $73K | 0.1% | 2025-Q2 stale |
| PNC Financial Services Group, Inc. new | 11,000 | $64K | 0.1% | 2025-Q1 stale |
| CITADEL ADVISORS LLC trimmed | 10,073 | $50K | 0.0% | 2025-Q3 stale |
| Carolina Wealth Advisors, LLC new | 2,000 | $12K | 0.0% | 2025-Q2 stale |
| FIFTH THIRD BANCORP new | 1,100 | $6K | 0.0% | 2025-Q1 stale |
| SIGNATUREFD, LLC trimmed | 400 | $2K | 0.0% | 2025-Q1 stale |
| Tower Research Capital LLC (TRC) added | 365 | $2K | 0.0% | 2025-Q3 stale |
| CWM, LLC added | 129 | $1K | 0.0% | 2025-Q3 stale |
| BANK OF AMERICA CORP /DE/ trimmed | 96 | $756 | 0.0% | 2025-Q4 stale |
| Federation des caisses Desjardins du Quebec trimmed | 30 | $178 | 0.0% | 2025-Q2 stale |
| CITIGROUP INC new | 1 | $8 | 0.0% | 2025-Q4 stale |
| SBI Securities Co., Ltd. new | 1 | $5 | 0.0% | 2025-Q3 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.