SBI Securities Co., Ltd. MBIO β€” Mustang Bio Inc

Ownership history in SBI Securities Co., Ltd.  Β·  6 quarters on record

AI Ownership Summary

SBI Securities Co., Ltd. reported Mustang Bio Inc (MBIO) in 6 quarterly 13F filings from 2024 Q4 through 2026 Q1. The latest visible filing shows MBIO 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.

What this MBIO ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was SBI Securities Co., Ltd.'s position in Mustang 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

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

High-water mark
Peak Conviction
0.0% in 2025 Q3

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.

MBIO stock page SBI Securities Co., Ltd. fund profile SBI Securities Co., Ltd. full holdings
How SBI Securities Co., Ltd. held MBIO β€” position size vs. price
% of Fund (quarterly)    MBIO price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
πŸ“‹ Quarterly Holdings History 6 quarters  β–Ύ
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED β€” β€” β€” 509 -1,500 -74.7% 0.00% $371 2026-04-28 $0.75
2025 Q4 ADDED β€” β€” β€” 2,009 +2 +0.1% 0.00% $2K 2026-02-03 $0.78
2025 Q3 ADDED β€” β€” β€” 2,007 +1,505 +299.8% 0.00% $3K 2025-11-05 $1.32
2025 Q2 ADDED β€” β€” β€” 502 +100 +24.9% 0.00% $479 2025-08-08 $1.66
2025 Q1 ADDED β€” β€” β€” 402 +288 +252.6% 0.00% $503 2025-05-02 $1.09
2024 Q4 INITIATED β€” β€” β€” 114 β€” β€” 0.00% $20 2025-02-06 $2.92

🏒 Other funds also holding MBIO

As of 2026 Q1 β€” sorted by position size

NBC SECURITIES, INC. 0.0%

FAQ About SBI Securities Co., Ltd. and MBIO

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

How long has SBI Securities Co., Ltd. reported owning MBIO?

SBI Securities Co., Ltd. reported MBIO across 6 quarterly 13F filings, from 2024 Q4 through 2026 Q1.

What was the largest reported MBIO position in SBI Securities Co., Ltd.'s portfolio?

The largest reported portfolio weight for MBIO was 0.00% in 2025 Q3.

What is the latest reported MBIO position on this page?

The most recent filing on this page is 2026 Q1, when SBI Securities Co., Ltd. reported 509 shares, equal to 0.00% of portfolio, with an estimated market value of $371.

What does the chart on this MBIO ownership page compare?

The chart compares SBI Securities Co., Ltd.'s quarterly MBIO 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 SBI Securities Co., Ltd. time their MBIO position?

Based on 13F filing dates vs. subsequent MBIO price moves, SBI Securities Co., Ltd. correctly timed 1 out of 5 reported position changes (20%). The annualised alpha on MBIO relative to SPY over the holding period was -71.6%.

← Back to SBI Securities Co., Ltd. Holdings