PTGXProtagonist Therapeutics, Inc.

$151.50

Who owns PTGX

306 institutions reported holding PTGX for 2026Q1, together 112% of the company, more than the 306 a quarter earlier.

306

Institutions reporting a position · as of 2026Q1 · up from 306 the quarter before

Shares held by institutions
78.6M

Shares held by institutions · 112% of the company · long US equity positions only, as reported on Form 13F

Reported value
$8.29B

Reported value · at 2026-03-31 prices, not today's

Opened vs closed
50 / 49

Opened vs closed · new positions against positions exited in the latest quarter

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
39
New positions
50
Positions exited
49
Added to
100
Reduced
95
Institutional ownership by quarter, 2016Q3 to 2026Q1
QuarterFilersSharesReported value
2026Q130678.6M$8.29B
2025Q430670.7M$6.17B
2025Q326870.6M$4.69B
2025Q226770.8M$3.91B
2025Q127065.3M$3.15B
2024Q423963.1M$2.44B
2024Q323761.7M$2.78B
2024Q218759.1M$2.05B
2024Q118559.9M$1.73B
2023Q415657.5M$1.32B
2023Q314456.7M$946M
2023Q216756.7M$1.57B
2023Q113653.2M$1.22B
2022Q413748.9M$533M
2022Q313047.2M$398M
2022Q213053.3M$422M
Largest reported holders, 2026Q1
HolderShares% of companyValue
BlackRock Inc.9.8Mn/a$1.03B
VANGUARD GROUP INC6.8Mn/a$716M
FARALLON CAPITAL MANAGEMENT LLC6.3Mn/a$669M
UBS Group AG5.2Mn/a$546M
RTW INVESTMENTS, LP5.1Mn/a$533M
WELLINGTON MANAGEMENT GROUP LLP3.6Mn/a$379M
STATE STREET CORP3.1Mn/a$329M
HENDERSON GROUP PLC2.9Mn/a$305M
JOHNSON & JOHNSON2.4Mn/a$258M
Invesco Ltd.2.2Mn/a$228M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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