HolderBook

PASSAGE BIO INC (PASG)

Institutional ownership reported to the SEC as of Q2 2026, across 26 quarters.

30
Reporting holders
$14.4M
Reported value
154.1%
Of shares outstanding
0.0%
Calls
0.0%
Puts
-3
Holder change

Institutions report 4,958,063 shares against 3,217,810 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
Lynx1 Capital Management LP$6.6M1,347,5180.48%4q+116.1%+$3.5M
CITADEL ADVISORS LLC$4.3M2,886,1250.00%newNEW
VANGUARD CAPITAL MANAGEMENT LLC$556.1K113,9640.00%2qHELD
Balyasny Asset Management L.P.$522.3K107,0250.00%newNEW
Ikarian Capital, LLC$485.6K99,5170.05%2q+46.1%+$153.2K
Yiheng Capital Management, L.P.$420.2K86,0970.14%3qHELD
RENAISSANCE TECHNOLOGIES LLC$233.7K47,8920.00%4q-64.2%-$418.3K
Erste Asset Management GmbH$197.2K40,6650.00%4q-52.3%-$216.3K
GEODE CAPITAL MANAGEMENT, LLC$180.7K37,0260.00%4q-10.5%-$21.3K
Verdad Advisers, LP$150.0K30,7280.14%2q+38.9%+$42.0K
BOOTHBAY FUND MANAGEMENT, LLC$138.8K28,4390.00%2q+50.7%+$46.7K
BlackRock, Inc.$136.2K27,9100.00%4q-2.4%-$3.3K
ACADIAN ASSET MANAGEMENT LLC$109.0K22,4960.00%4q-7.0%-$8.2K
VANGUARD FIDUCIARY TRUST CO$83.2K17,0490.00%2qHELD
DELTEC ASSET MANAGEMENT LLC$73.2K15,0000.01%newNEW
UBS Group AG$66.2K13,5650.00%4q-50.7%-$68.0K
HRT FINANCIAL LP$62.0K12,7120.00%newNEW
Fiduciary Trust Co$52.5K10,7500.00%4qHELD
GTS SECURITIES LLC$48.8K10,0000.00%newNEW
MORGAN STANLEY$11.7K2,3890.00%4q-9.8%-$1.3K
Vanguard Global Advisers, LLC$3.1K6380.00%2qHELD
BARCLAYS PLC$1.0K2120.00%4qHELD
SBI Securities Co., Ltd.$8251690.00%5q+36.3%
WELLS FARGO & COMPANY/MN$5611150.00%2q-50.0%
JPMORGAN CHASE & CO$73150.00%4qHELD
OSAIC HOLDINGS, INC.$73150.00%4qHELD
BNP PARIBAS FINANCIAL MARKETS$59120.00%4qHELD
LRI Investments, LLC$59120.00%5qHELD
HARBOUR INVESTMENTS, INC.$1530.00%4qHELD
TSFG, LLC$050.00%newNEW

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-08-1413G/AVestal Point Capital, LPwith 1 co-filers0.0%
2026-07-0213DLynx1 Capital Management LPwith 1 co-filers21.0%

What the insiders did

Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.

Ten percent owners and entities

Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.

DateInsiderRoleSideSharesValue
2026-06-25Lynx1 Capital Management LP10% ownerBought50,055$206.1K

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 202630$14.4M4,958,0636580.0%
Q1 202633$13.8M1,780,1569640.0%
Q4 202528$18.6M1,577,4085560.0%
Q3 202531$13.3M1,648,92728030.1%
Q2 202539$13.0M32,558,6168690.2%
Q1 202541$12.8M36,319,53239110.2%
Q4 202444$21.6M37,629,72199100.0%
Q3 202443$27.1M38,667,42510870.0%
Q2 202443$32.0M40,277,73438100.0%
Q1 202449$54.5M40,331,008712130.1%
Q4 202349$33.1M32,773,33371390.0%
Q3 202348$21.3M32,389,381212100.0%
Q2 202354$31.4M33,367,51096180.0%
Q1 202355$34.1M35,605,023415150.0%
Q4 202265$51.6M37,377,0081013230.1%
Q3 202269$49.3M39,414,659914280.1%
Q2 202279$99.6M42,213,6801620340.0%
Q1 2022102$133.3M42,975,3462232290.0%
Q4 202199$278.0M43,737,9541540210.1%
Q3 2021101$419.6M42,080,9781628310.1%
Q2 2021101$557.6M42,094,6302242170.0%
Q1 202189$786.5M44,993,5422340130.0%
Q4 202071$817.8M31,980,4561530100.0%
Q3 202067$403.5M30,774,5911315200.0%
Q2 202066$862.7M31,599,0233210130.0%
Q1 202045$461.5M29,361,26844000.0%