JANE STREET GROUP, LLC QTTB — Q32 BIO INC

Ownership history in JANE STREET GROUP, LLC  ·  4 quarters on record

AI Ownership Summary

JANE STREET GROUP, LLC reported Q32 BIO INC (QTTB) in 4 quarterly 13F filings from 2024 Q3 through 2026 Q1. The latest visible filing shows QTTB 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 QTTB ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was JANE STREET GROUP, LLC's position in Q32 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

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

High-water mark
Peak Conviction
0.0% in 2024 Q3

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

Time in book
Holding Window
2024 Q3 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.

QTTB stock page JANE STREET GROUP, LLC fund profile JANE STREET GROUP, LLC full holdings
How JANE STREET GROUP, LLC held QTTB — position size vs. price
% of Fund (quarterly)    QTTB price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 4 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED — — — 65,599 +40,225 +158.5% 0.00% $421K 2026-05-12 $5.81
2025 Q4 REDUCED 45.6% +93.4% ❌ 25,374 -21,261 -45.6% 0.00% $84K 2026-02-12 $3.83
2025 Q2 ADDED — — — 46,635 +30,198 +183.7% 0.00% $69K 2025-08-14 $1.88
2024 Q3 INITIATED — — — 16,437 — — 0.00% $733K 2024-11-15 $32.95

🏢 Other funds also holding QTTB

As of 2026 Q1 — sorted by position size

Atlas Venture Life Science Advisors, LLC 3Y 1.7% Opaleye Management Inc. 3Y 7Y 1.06% ACORN CAPITAL ADVISORS, LLC 0.57% Sanofi 0.47% PFIZER INC 0.31% ARCH Venture Management, LLC 3Y 7Y 0.3% ORBIMED ADVISORS LLC 3Y 7Y 0.29% MONIMUS CAPITAL MANAGEMENT, LP 0.24% Carlyle Group Inc. 3Y 7Y 0.07% Affinity Asset Advisors, LLC 3Y 0.01%

FAQ About JANE STREET GROUP, LLC and QTTB

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

How long has JANE STREET GROUP, LLC reported owning QTTB?

JANE STREET GROUP, LLC reported QTTB across 4 quarterly 13F filings, from 2024 Q3 through 2026 Q1.

What was the largest reported QTTB position in JANE STREET GROUP, LLC's portfolio?

The largest reported portfolio weight for QTTB was 0.00% in 2024 Q3.

What is the latest reported QTTB position on this page?

The most recent filing on this page is 2026 Q1, when JANE STREET GROUP, LLC reported 65,599 shares, equal to 0.00% of portfolio, with an estimated market value of $421K.

What does the chart on this QTTB ownership page compare?

The chart compares JANE STREET GROUP, LLC's quarterly QTTB 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 JANE STREET GROUP, LLC time their QTTB position?

Based on 13F filing dates vs. subsequent QTTB price moves, JANE STREET GROUP, LLC correctly timed 1 out of 3 reported position changes (33%). The annualised alpha on QTTB relative to SPY over the holding period was +342.3%.

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