AI Holders Summary · Q2 2026

165 institutions reported PSNL in Q2 2026. Merck & Co., Inc. leads at 19.9% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

Hide index funds / market makers / custodians(3 on this page)

#HolderValueShares% port.Quarter

Merck & Co., Inc.

CIK 0000310158

$188M14.0M35.75%Q2 2026 02

ARK Investment Management LLC

CIK 0001697748

$111M8.3M0.72%Q2 2026 03

BlackRock, Inc.

CIK 0002012383

$95M7.1M0.00%Q2 2026 04

AMERIPRISE FINANCIAL INC

CIK 0000820027

$82M6.1M0.02%Q2 2026 05

Deep Track Capital, LP

CIK 0001856083

$54M4.0M0.78%Q2 2026 06

Lightspeed Management Company, L.L.C.

CIK 0001702122

$52M8.2M5.26%Q1 2026 07

Aberdeen Group plc

CIK 0001716774

$50M3.7M0.07%Q2 2026 08

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$40M3.0M0.00%Q2 2026 09

Casdin Capital, LLC

CIK 0001534261

$34M2.5M1.71%Q2 2026 10

KENNEDY CAPITAL MANAGEMENT LLC

CIK 0000884589

$32M2.4M0.56%Q2 2026 11

T. Rowe Price Investment Management, Inc.

CIK 0001897612

$30M4.8M0.02%Q1 2026 12

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$24M1.8M0.00%Q2 2026 13

BANK OF AMERICA CORP /DE/

CIK 0000070858

$24M1.8M0.00%Q2 2026 14

AIGH Capital Management LLC

CIK 0001835943

$23M1.7M1.45%Q2 2026 15

Blue Water Life Science Advisors, LP

CIK 0001789778

$22M1.7M14.15%Q2 2026 16

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$20M1.5M0.00%Q2 2026 17

STATE STREET CORP

CIK 0000093751

$20M1.5M0.00%Q2 2026 18

MORGAN STANLEY

CIK 0000895421

$17M1.3M0.00%Q2 2026 19

GOLDMAN SACHS GROUP INC

CIK 0000886982

$16M1.2M0.00%Q2 2026 20

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$11M1.7M0.00%Q1 2026

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