Ikarian Capital, LLC QTTB — Q32 BIO INC

Ownership history in Ikarian Capital, LLC  ·  4 quarters on record

AI Ownership Summary

Ikarian Capital, LLC reported Q32 BIO INC (QTTB) in 4 quarterly 13F filings from 2024 Q1 through 2026 Q2. Peak portfolio weight reached 0.59% in 2026 Q2. The latest visible filing shows QTTB at 0.59% 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 Ikarian Capital, 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 Q2

QTTB was reported at 0.59% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.59% in 2026 Q2

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

Time in book
Holding Window
2024 Q1 to 2026 Q2

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 Ikarian Capital, LLC fund profile Ikarian Capital, LLC full holdings
How Ikarian Capital, 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 Q2 ADDED — — — 430,000 +230,000 +115.0% 0.59% $5.5M 2026-08-14 $15.15
2026 Q2 ADDED — — — 200,000 +90,906 +83.3% 0.27% $2.5M 2026-08-14 $15.15
2024 Q2 ADDED — — — 109,094 +86,759 +388.4% 0.34% $2.0M 2024-08-14 $36.33
2024 Q1 INITIATED — — — 22,335 — — 0.04% $381K 2024-05-15 $29.40

🏢 Other funds also holding QTTB

As of 2026 Q2 — sorted by position size

Atlas Venture Life Science Advisors, LLC 3Y 3.93% Boxer Capital Management, LLC 3.02% Opaleye Management Inc. 3Y 7Y 1.07% ORBIMED ADVISORS LLC 3Y 7Y 0.97% BVF INC/IL 3Y 7Y 0.77% ACORN CAPITAL ADVISORS, LLC 0.75% Sanofi 0.58% Logos Global Management LP 3Y 0.44% MONIMUS CAPITAL MANAGEMENT, LP 0.39% RA CAPITAL MANAGEMENT, L.P. 3Y 7Y 0.26%

FAQ About Ikarian Capital, 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 Ikarian Capital, LLC reported owning QTTB?

Ikarian Capital, LLC reported QTTB across 4 quarterly 13F filings, from 2024 Q1 through 2026 Q2.

What was the largest reported QTTB position in Ikarian Capital, LLC's portfolio?

The largest reported portfolio weight for QTTB was 0.59% in 2026 Q2.

What is the latest reported QTTB position on this page?

The most recent filing on this page is 2026 Q2, when Ikarian Capital, LLC reported 430,000 shares, equal to 0.59% of portfolio, with an estimated market value of $5.5M.

What does the chart on this QTTB ownership page compare?

The chart compares Ikarian Capital, 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 Ikarian Capital, LLC time their QTTB position?

Based on 13F filing dates vs. subsequent QTTB price moves, Ikarian Capital, LLC correctly timed 1 out of 3 reported position changes (33%).

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