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PASG · Passage Bio, Inc.

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TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475

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PASG

Name: Passage BIO, Inc. (PASG) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

Passage BIO, Inc.

PHARMA & BIOTECH · BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES) · CIK 0001787297

ACTIVIST 13D☆ WATCH

INSIDER NET · 180D

$206.2K

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

13F, latest reported quarter

REVENUE GROWTH

XBRL, annual

NET MARGIN

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net +$206.2K over 180 days

+$206.2K over 90 days · +$206.2K of it by a 10%+ holder

more than 80% of Pharma & Biotech

CONGRESS

no member of Congress has reported trading it

FUNDS

9 funds added or opened last quarter

below 86% of Pharma & Biotech

REVENUE

no revenue reported in any filing

MARGIN

no margin: this company reports no revenue to divide by

BUYBACKS

no share repurchases reported

SHORT

4.8% of shares outstanding short · 4.5 days to cover · settled 2026-07-31

more than 53% of Pharma & Biotech

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Lynx1 Capital Management LP disclosed a 5%+ stake (21.0%) in the last six months.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN -35.2%

-35.2%12M

INSIDER BUYINSIDER SELL13D/G STAKE

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

An activist crossed the 5% line with declared intent.

The record shows a net $206.2K bought by insiders over 180 days, 9 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

UTHR CPIX MRNA REGN LLY ALNY ELF CITR MDGL DNA VRTX NUVL

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, Passage BIO, Inc. insiders bought a net $206.2K of stock across 63 Form 4 purchases and sales, with 1 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-04.

INSIDER

FILED

VALUE

Nichols Weston

—

BUY

2026-06-25

50,055.0

$206.2K

Chou William

PRESIDENT AND CEO

SELL

2026-01-08

4,076.0

$75.2K

Borthwick Kathleen

CFO

SELL

2026-01-08

2,062.0

$38.0K

Nichols Weston

—

BUY

2025-09-15

11,900.0

$83.2K

Nichols Weston

—

BUY

2025-09-12

19,783.0

$138.3K

63 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 58 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

Lynx1 Capital Management LP

1,347,518.0 sh

$6.6M

VANGUARD CAPITAL MANAGEMENT LLC

113,964.0 sh

$556.1K

Balyasny Asset Management L.P.

107,025.0 sh

$522.3K

Ikarian Capital, LLC

99,517.0 sh

$485.6K

Yiheng Capital Management, L.P.

86,097.0 sh

$420.2K

5%+ owners

13D = intent to influence · 13G = passive

Lynx1 Capital Management LP

ACTIVIST 13D · 2026-07-02

21.0%

Weston Nichols

ACTIVIST 13D · 2026-07-02

21.0%

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

TIFF MULTI-ASSET FUND

$21.3K POSITION · AS OF 2026-03-31

0.0%

VANGUARD EXTENDED MARKET INDEX FUND

$276.3K POSITION · AS OF 2026-03-31

0.0%

U.S. Social Core Equity 2 Portfolio

$5.5K POSITION · AS OF 2026-04-30

0.0%

Dimensional US Core Equity 1 ETF

$6.5K POSITION · AS OF 2026-04-30

0.0%

Fidelity Extended Market Index Fund

$72.5K POSITION · AS OF 2026-02-28

0.0%

Diversified Equity Master Portfolio

$4.0K POSITION · AS OF 2026-03-31

0.0%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Clinical pipeline

ClinicalTrials.gov · 1 registered trials, 1 still enrolling or running — a status change here is dated weeks before the press release

Multi-phase

1 ACTIVE

TRIALS MATCHED TO THIS TICKER BY SPONSOR NAME · STUDIES RUN UNDER A SUBSIDIARY'S OWN NAME ARE NOT INCLUDED

Executive pay vs shareholder return · William Chou

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2025

$1.5M

$722.6K

-42%

—

2024

$1.6M

$902.5K

$871.8K

-44%

—

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
OPERATING INCOME	$-49.3M	$-70.4M	$-108.4M	$-138.4M
NET INCOME	$-45.5M	$-64.8M	$-102.1M	$-136.1M
EPS (DILUTED)	-14.35	-21.04	-1.86	-2.50
OPERATING CASH FLOW	$-31.5M	$-48.0M	$-78.3M	$-118.2M
CASH	$46.3M	$37.6M	$21.7M	$34.6M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-04 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE