B Group, Inc. ASMB — ASSEMBLY BIOSCIENCES INC

Ownership history in B Group, Inc.  ·  6 quarters on record

AI Ownership Summary

B Group, Inc. reported ASSEMBLY BIOSCIENCES INC (ASMB) in 6 quarterly 13F filings from 2024 Q4 through 2026 Q1. Peak portfolio weight reached 4.41% in 2025 Q4. The latest visible filing shows ASMB at 3.61% 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.

What this ASMB ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was B Group, Inc.'s position in ASSEMBLY BIOSCIENCES 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

ASMB was reported at 3.61% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
4.41% in 2025 Q4

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

Time in book
Holding Window
2024 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.

ASMB stock page B Group, Inc. fund profile B Group, Inc. full holdings
How B Group, Inc. held ASMB — position size vs. price
% of Fund (quarterly)    ASMB price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 6 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 UNCHANGED — — — 175,706 — 0% 3.61% $4.9M 2026-05-15 $28.65
2025 Q4 UNCHANGED — — — 175,706 — 0% 4.41% $6.0M 2026-02-17 $27.82
2025 Q3 REDUCED 7.2% +30.2% ❌ 175,706 -13,644 -7.2% 3.31% $4.5M 2025-11-14 $36.71
2025 Q2 REDUCED 5.3% +35.9% ❌ 189,350 -10,650 -5.3% 2.64% $3.4M 2025-08-14 $24.96
2025 Q1 ADDED — — — 200,000 +149,349 +294.9% 1.64% $1.9M 2025-05-15 $12.50
2024 Q4 INITIATED — — — 50,651 — — 0.49% $799K 2025-02-14 $13.02

🏢 Other funds also holding ASMB

As of 2026 Q1 — sorted by position size

GILEAD SCIENCES, INC. 5.9% Commodore Capital LP 3Y 1.61% Parkman Healthcare Partners LLC 3Y 1.18% STEMPOINT CAPITAL LP 1.0% Patient Square Capital LP 3Y 0.67% HighVista Strategies LLC 3Y 7Y 0.57% Seven Fleet Capital Management LP 0.49% Paradigm Biocapital Advisors LP 3Y 0.38% MONIMUS CAPITAL MANAGEMENT, LP 0.37% RA CAPITAL MANAGEMENT, L.P. 3Y 7Y 0.3%

FAQ About B Group, Inc. and ASMB

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

How long has B Group, Inc. reported owning ASMB?

B Group, Inc. reported ASMB across 6 quarterly 13F filings, from 2024 Q4 through 2026 Q1.

What was the largest reported ASMB position in B Group, Inc.'s portfolio?

The largest reported portfolio weight for ASMB was 4.41% in 2025 Q4.

What is the latest reported ASMB position on this page?

The most recent filing on this page is 2026 Q1, when B Group, Inc. reported 175,706 shares, equal to 3.61% of portfolio, with an estimated market value of $4.9M.

What does the chart on this ASMB ownership page compare?

The chart compares B Group, Inc.'s quarterly ASMB 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 B Group, Inc. time their ASMB position?

Based on 13F filing dates vs. subsequent ASMB price moves, B Group, Inc. correctly timed 2 out of 4 reported position changes (50%). The annualised alpha on ASMB relative to SPY over the holding period was +59.5%.

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