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Institutional Ownership · SEC Form 13F

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-Q2 13F filings (latest filed 2026-08-17). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

64
Institutional holders
21M
Shares held (tracked funds)
40.6%
Of shares outstanding

How the tape is positioned

16 tracked funds added or opened EPRX while 18 trimmed or exited it between 2026-Q1 and 2026-Q2 — 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

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 2026-Q1 and 2026-Q2, across 64 tracked filers holding EPRX, 40 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 EPRX between the 2026-Q1 and 2026-Q2 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 6

  • Jupiter Topco LLC$7M
  • MILLENNIUM MANAGEMENT LLC$3M
  • PICTON MAHONEY ASSET MANAGEMENT$2M
  • DV EQUITIES, LLC$2M
  • ORBIMED ADVISORS LLC$2M
  • DAFNA Capital Management LLC$1M

Full exits 6

  • Beutel, Goodman & Co Ltd.$26M
  • Squadron Capital Management LLC$5M
  • DV Trading LLC$2M
  • ACADIAN ASSET MANAGEMENT LLC$671K
  • Hudson Bay Capital Management LP$669K
  • INGALLS & SNYDER LLC$548K

Largest adds

  • PFM Health Sciences, LP$4M
  • JANE STREET GROUP, LLC$2M
  • Woodline Partners LP$2M
  • CITADEL ADVISORS LLC$2M
  • SCOTIA CAPITAL INC.$2M
  • TWO SIGMA INVESTMENTS, LP$1M

Largest trims

  • Ikarian Capital, LLC$3M
  • Ally Bridge Group (NY) LLC$3M
  • Point72 Asset Management, L.P.$2M
  • UBS Group AG$2M
  • Seven Fleet Capital Management LP$1M
  • Redmile Group, 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).

FundSharesReported value% of valueQuarter
Affinity Asset Advisors, LLC added1,650,000$11M6.0%2026-Q2
BALYASNY ASSET MANAGEMENT L.P. added1,350,015$9M4.9%2026-Q2
Vivo Capital, LLC1,350,000$9M4.9%2026-Q2
SCOTIA CAPITAL INC. added1,343,726$9M4.8%2026-Q2
PFM Health Sciences, LP added1,210,661$8M4.4%2026-Q2
GREAT POINT PARTNERS LLC1,200,000$8M4.3%2026-Q2
Jupiter Topco LLC new1,046,000$7M3.7%2026-Q2
Rubric Capital Management LP added867,424$6M3.1%2026-Q2
Ikarian Capital, LLC trimmed809,741$5M2.9%2026-Q2
Woodline Partners LP added746,864$5M2.7%2026-Q2
Point72 Asset Management, L.P. trimmed730,284$5M2.6%2026-Q2
AMERIPRISE FINANCIAL INC added711,024$5M2.6%2026-Q2
Redmile Group, LLC trimmed611,400$4M2.2%2026-Q2
Seven Fleet Capital Management LP added610,785$4M2.2%2026-Q2
UBS Group AG trimmed519,211$3M1.9%2026-Q2
CITADEL ADVISORS LLC added502,011$3M1.8%2026-Q2
MILLENNIUM MANAGEMENT LLC added441,586$3M1.6%2026-Q2
Alyeska Investment Group, L.P.375,000$2M1.4%2026-Q2
PICTON MAHONEY ASSET MANAGEMENT new360,878$2M1.3%2026-Q2
Velan Capital Investment Management LP352,000$2M1.3%2026-Q2
JANE STREET GROUP, LLC added329,053$2M1.2%2026-Q2
Aisling Capital Management LP325,000$2M1.2%2026-Q2
SummitTX Capital, L.P. trimmed318,784$2M1.2%2026-Q2
ROYAL BANK OF CANADA added311,435$2M1.1%2026-Q2
DV EQUITIES, LLC new276,000$2M1.0%2026-Q2
ORBIMED ADVISORS LLC new269,000$2M1.0%2026-Q2
BANK OF AMERICA CORP /DE/ trimmed264,721$2M1.0%2026-Q2
Ally Bridge Group (NY) LLC trimmed252,175$2M0.9%2026-Q2
CIBC WORLD MARKET INC. added234,673$2M0.8%2026-Q2
DAFNA Capital Management LLC new225,600$1M0.8%2026-Q2
TWO SIGMA INVESTMENTS, LP added221,084$1M0.8%2026-Q2
BOOTHBAY FUND MANAGEMENT, LLC trimmed212,653$1M0.8%2026-Q2
MARSHALL WACE, LLP added158,133$1M0.6%2026-Q2
Delaney Capital Management Ltd. trimmed117,200$768K0.4%2026-Q2
TD Waterhouse Canada Inc. trimmed79,607$535K0.3%2026-Q2
XTX Topco Ltd added70,265$464K0.3%2026-Q2
Annis Gardner Whiting Capital Advisors, LLC new60,000$397K0.2%2026-Q2
GOLDMAN SACHS GROUP INC added58,058$384K0.2%2026-Q2
RAYMOND JAMES FINANCIAL INC added53,503$354K0.2%2026-Q2
1832 Asset Management L.P. trimmed50,432$333K0.2%2026-Q2
BNP PARIBAS FINANCIAL MARKETS added46,145$305K0.2%2026-Q2
Stonepine Capital Management, LLC new43,491$287K0.2%2026-Q2
BANK OF MONTREAL /CAN/ added38,457$252K0.1%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC added36,211$239K0.1%2026-Q2
Brevan Howard Capital Management LP new34,767$230K0.1%2026-Q2
Qube Research & Technologies Ltd new34,237$226K0.1%2026-Q2
TORONTO DOMINION BANK trimmed30,920$203K0.1%2026-Q2
AXQ CAPITAL, LP added21,150$140K0.1%2026-Q2
Jump Financial, LLC new19,800$131K0.1%2026-Q2
NATIXIS new17,644$115K0.1%2026-Q2
JPMORGAN CHASE & CO added14,186$93K0.1%2026-Q2
China Universal Asset Management Co., Ltd. added12,500$83K0.0%2026-Q2
TCI Wealth Advisors, Inc.11,000$73K0.0%2026-Q2
Aptus Capital Advisors, LLC10,500$69K0.0%2026-Q2
GUARDIAN WEALTH ADVISORS, LLC / NC10,500$69K0.0%2026-Q2
Lynx1 Capital Management LP new10,000$66K0.0%2026-Q2
Shay Capital LLC new10,000$66K0.0%2026-Q2
Federation des caisses Desjardins du Quebec9,091$59K0.0%2026-Q2
Northwest & Ethical Investments L.P. new6,237$41K0.0%2026-Q2
Persistent Asset Partners Ltd trimmed3,791$25K0.0%2026-Q2
MORGAN STANLEY trimmed2,200$15K0.0%2026-Q2
Caitong International Asset Management Co., Ltd added52$3440.0%2026-Q2
Quarry LP new49$3240.0%2026-Q2
NATIONAL BANK OF CANADA /FI/ trimmed8$360.0%2026-Q2
Beutel, Goodman & Co Ltd. trimmed3,666,465$26M14.4%2026-Q1 stale (1 quarter behind)
Squadron Capital Management LLC added680,000$5M2.7%2026-Q1 stale (1 quarter behind)
DV Trading LLC new276,000$2M1.1%2026-Q1 stale (1 quarter behind)
ACADIAN ASSET MANAGEMENT LLC trimmed93,600$671K0.4%2026-Q1 stale (1 quarter behind)
Hudson Bay Capital Management LP new92,347$669K0.4%2026-Q1 stale (1 quarter behind)
INGALLS & SNYDER LLC trimmed75,650$548K0.3%2026-Q1 stale (1 quarter behind)
DIADEMA PARTNERS LP new40,000$290K0.2%2026-Q1 stale (1 quarter behind)
Integrated Wealth Concepts LLC12,000$87K0.0%2026-Q1 stale (1 quarter behind)
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP new278,064$2M1.1%2025-Q4 stale (2 quarters behind)
Quadrature Capital Ltd added43,186$326K0.2%2025-Q4 stale (2 quarters behind)
Logos Global Management LP new900,000$5M2.9%2025-Q3 stale (3 quarters behind)
Guardian Partners Inc. new24,130$147K0.1%2025-Q3 stale (3 quarters behind)
Tower Research Capital LLC (TRC) new9$530.0%2025-Q3 stale (3 quarters behind)
CONCOURSE FINANCIAL GROUP SECURITIES, INC.0—0.0%2025-Q2 stale (4 quarters behind)

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.

HoldersTotal shares

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.

Learn how to read institutional ownership