ACADIAN ASSET MANAGEMENT LLC PASG — PASSAGE BIO INC

Ownership history in ACADIAN ASSET MANAGEMENT LLC  ·  17 quarters on record

AI Ownership Summary

ACADIAN ASSET MANAGEMENT LLC reported PASSAGE BIO INC (PASG) in 17 quarterly 13F filings from 2023 Q4 through 2026 Q1. The latest visible filing shows PASG at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this PASG ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was ACADIAN ASSET MANAGEMENT LLC's position in PASSAGE BIO INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

PASG was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2024 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

PASG stock page ACADIAN ASSET MANAGEMENT LLC fund profile ACADIAN ASSET MANAGEMENT LLC full holdings
How ACADIAN ASSET MANAGEMENT LLC held PASG — position size vs. price
% of Fund (quarterly)    PASG price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 UNCHANGED — — — 24,196 — 0% 0.00% $189 2026-05-13 $5.52
2025 Q4 REDUCED 5.4% -33.5% ✅ 24,196 -1,372 -5.4% 0.00% $284K 2026-02-10 $9.32
2025 Q3 REDUCED 97.3% +38.0% ❌ 25,568 -908,196 -97.3% 0.00% $204K 2025-11-14 (Est.) $8.85
2025 Q2 UNCHANGED — — — 933,764 — 0% 0.00% $372K 2025-08-14 (Est.) $7.59
2025 Q1 REDUCED — — — 933,764 -9,136 -1.0% 0.00% $328K 2025-05-21 $6.02
2024 Q4 REDUCED — — — 942,900 -18,371 -1.9% 0.00% $533K 2025-02-11 $10.58
2024 Q3 UNCHANGED — — — 961,271 — 0% 0.00% $671K 2024-11-12 $13.36
2024 Q2 UNCHANGED — — — 961,271 — 0% 0.00% $762K 2024-08-06 $16.60
2024 Q1 ADDED — — — 961,271 +356,593 +59.0% 0.00% $1.3M 2024-05-10 $29.40
2023 Q4 UNCHANGED — — — 604,678 — 0% 0.00% $610K 2024-02-13 $19.80
7 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding PASG

As of 2026 Q1 — sorted by position size

Lynx1 Capital Management LP 3Y 0.77% Yiheng Capital Management, L.P. 3Y 7Y 0.29% Verdad Advisers, LP 3Y 0.2% Vestal Point Capital, LP 0.07% Eversept Partners, LP 3Y 7Y 0.05% Ikarian Capital, LLC 3Y 0.04% DIADEMA PARTNERS LP 0.03% Persistent Asset Partners Ltd 0.01% Erste Asset Management GmbH 0.0% BOOTHBAY FUND MANAGEMENT, LLC 3Y 7Y 0.0%

FAQ About ACADIAN ASSET MANAGEMENT LLC and PASG

These are the practical questions this page is built to answer before you even open the full history table.

How long has ACADIAN ASSET MANAGEMENT LLC reported owning PASG?

ACADIAN ASSET MANAGEMENT LLC reported PASG across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported PASG position in ACADIAN ASSET MANAGEMENT LLC's portfolio?

The largest reported portfolio weight for PASG was 0.00% in 2024 Q1.

What is the latest reported PASG position on this page?

The most recent filing on this page is 2026 Q1, when ACADIAN ASSET MANAGEMENT LLC reported 24,196 shares, equal to 0.00% of portfolio, with an estimated market value of $189.

What does the chart on this PASG ownership page compare?

The chart compares ACADIAN ASSET MANAGEMENT LLC's quarterly PASG portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did ACADIAN ASSET MANAGEMENT LLC time their PASG position?

Based on 13F filing dates vs. subsequent PASG price moves, ACADIAN ASSET MANAGEMENT LLC correctly timed 4 out of 10 reported position changes (40%). The annualised alpha on PASG relative to SPY over the holding period was -46.9%.

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