Who owns EPRX
Which tracked institutional funds hold EPRX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See EPRX company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 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
The tracked-fund tape on EPRX is one-sided between 2025-Q4 and 2026-Q1: 22 added or opened and 7 trimmed or exited — on balance accumulating.
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
EPRX’s largest tracked holder by dollar value, Beutel, Goodman & Co Ltd., sizes it at 0.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in EPRX 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 54 tracked filers holding EPRX, 41 increased or opened the position and 10 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 EPRX 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 11
- Seven Fleet Capital Management LP$5M
- Redmile Group, LLC$5M
- Rubric Capital Management LP$5M
- PFM Health Sciences, LP$4M
- AMERIPRISE FINANCIAL INC$4M
- Woodline Partners LP$3M
Full exits 1
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$2M
Largest adds
- Affinity Asset Advisors, LLC$9M
- Ikarian Capital, LLC$4M
- UBS Group AG$4M
- Ally Bridge Group (NY) LLC$2M
- Point72 Asset Management, L.P.$2M
- BOOTHBAY FUND MANAGEMENT, LLC$1M
Largest trims
- SCOTIA CAPITAL INC.$2M
- Beutel, Goodman & Co Ltd.$2M
- ACADIAN ASSET MANAGEMENT LLC$497K
- BALYASNY ASSET MANAGEMENT L.P.$418K
- Vivo Capital, LLC$418K
- GREAT POINT PARTNERS LLC$372K
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 |
|---|---|---|---|---|
| Beutel, Goodman & Co Ltd. trimmed | 3,666,465 | $26M | 16.2% | 2026-Q1 |
| Affinity Asset Advisors, LLC added | 1,589,005 | $12M | 7.0% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. | 1,350,000 | $10M | 6.0% | 2026-Q1 |
| Vivo Capital, LLC | 1,350,000 | $10M | 6.0% | 2026-Q1 |
| Ikarian Capital, LLC added | 1,214,741 | $9M | 5.4% | 2026-Q1 |
| GREAT POINT PARTNERS LLC | 1,200,000 | $9M | 5.3% | 2026-Q1 |
| SCOTIA CAPITAL INC. added | 1,342,178 | $7M | 4.4% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 967,575 | $7M | 4.3% | 2026-Q1 |
| UBS Group AG added | 762,635 | $6M | 3.4% | 2026-Q1 |
| Redmile Group, LLC new | 700,000 | $5M | 3.1% | 2026-Q1 |
| Rubric Capital Management LP new | 691,170 | $5M | 3.1% | 2026-Q1 |
| Squadron Capital Management LLC added | 680,000 | $5M | 3.0% | 2026-Q1 |
| Ally Bridge Group (NY) LLC added | 660,375 | $5M | 2.9% | 2026-Q1 |
| PFM Health Sciences, LP new | 540,871 | $4M | 2.4% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC new | 524,257 | $4M | 2.3% | 2026-Q1 |
| Woodline Partners LP new | 440,551 | $3M | 2.0% | 2026-Q1 |
| Alyeska Investment Group, L.P. added | 375,000 | $3M | 1.7% | 2026-Q1 |
| Velan Capital Investment Management LP | 352,000 | $3M | 1.6% | 2026-Q1 |
| SummitTX Capital, L.P. added | 327,997 | $2M | 1.5% | 2026-Q1 |
| Aisling Capital Management LP new | 325,000 | $2M | 1.4% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 323,843 | $2M | 1.4% | 2026-Q1 |
| Seven Fleet Capital Management LP new | 276,000 | $2M | 1.2% | 2026-Q1 |
| DV Trading LLC new | 276,000 | $2M | 1.2% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 268,221 | $2M | 1.2% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 261,376 | $2M | 1.2% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 230,176 | $2M | 1.0% | 2026-Q1 |
| CIBC WORLD MARKET INC. added | 150,950 | $1M | 0.7% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 135,152 | $979K | 0.6% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 93,600 | $671K | 0.4% | 2026-Q1 |
| Hudson Bay Capital Management LP new | 92,347 | $669K | 0.4% | 2026-Q1 |
| TD Waterhouse Canada Inc. added | 81,725 | $590K | 0.4% | 2026-Q1 |
| INGALLS & SNYDER LLC trimmed | 75,650 | $548K | 0.3% | 2026-Q1 |
| 1832 Asset Management L.P. added | 60,000 | $434K | 0.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 53,080 | $384K | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 50,560 | $366K | 0.2% | 2026-Q1 |
| DIADEMA PARTNERS LP new | 40,000 | $290K | 0.2% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ added | 38,250 | $276K | 0.2% | 2026-Q1 |
| Persistent Asset Partners Ltd new | 37,926 | $275K | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 35,210 | $254K | 0.2% | 2026-Q1 |
| TORONTO DOMINION BANK added | 32,898 | $237K | 0.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 25,613 | $185K | 0.1% | 2026-Q1 |
| AXQ CAPITAL, LP new | 15,760 | $114K | 0.1% | 2026-Q1 |
| Integrated Wealth Concepts LLC | 12,000 | $87K | 0.1% | 2026-Q1 |
| TCI Wealth Advisors, Inc. | 11,000 | $80K | 0.0% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP new | 10,800 | $78K | 0.0% | 2026-Q1 |
| Aptus Capital Advisors, LLC added | 10,500 | $76K | 0.0% | 2026-Q1 |
| GUARDIAN WEALTH ADVISORS, LLC / NC added | 10,500 | $76K | 0.0% | 2026-Q1 |
| China Universal Asset Management Co., Ltd. new | 10,000 | $72K | 0.0% | 2026-Q1 |
| MORGAN STANLEY new | 8,820 | $64K | 0.0% | 2026-Q1 |
| Federation des caisses Desjardins du Quebec | 9,091 | $49K | 0.0% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS new | 6,429 | $47K | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 573 | $4K | 0.0% | 2026-Q1 |
| NATIONAL BANK OF CANADA /FI/ trimmed | 359 | $812 | 0.0% | 2026-Q1 |
| Caitong International Asset Management Co., Ltd new | 1 | $7 | 0.0% | 2026-Q1 |
| Logos Global Management LP new | 900,000 | $5M | 3.3% | 2025-Q3 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP new | 278,064 | $2M | 1.3% | 2025-Q4 stale |
| Quadrature Capital Ltd added | 43,186 | $326K | 0.2% | 2025-Q4 stale |
| Guardian Partners Inc. new | 24,130 | $147K | 0.1% | 2025-Q3 stale |
| XTX Topco Ltd new | 16,180 | $122K | 0.1% | 2025-Q4 stale |
| Tower Research Capital LLC (TRC) new | 9 | $53 | 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.