Security key
746964105
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 336
- Total 13F value
- $4,281
- Share change
- -4,410
- SEC-reported price per share
- $12.74
- Number of holders
- 3
- Value change
- -$56,190
- Number of sells
- 2
- Shares outstanding
- 29,697,748
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
3
Top holders
3
QTTB full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q1 2026
Q32 Bio Inc. SEC filings
Q32 Bio Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 746964105
Recent filing periods:
Ownership snapshot
Top reported holders of QTTB - Q32 Bio Inc. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Boxer Capital Management,...
Disclosed value leader
Boxer Capital Management,...
Comparable rows
15/15
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 13%
13D/G row: Boxer Capital Management, LLC
Showing 1-6 of 15 holder rows.
Quick read
Boxer Capital Management, LLC leads the comparable SEC ownership view at 13%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Boxer Capital Management, LLC's linked filing trail.
Comparable ownership
Top 5
Boxer Capital Management, LLC
13%
BIOTECHNOLOGY VALUE FUND L P
10%
Sirenia Capital Management LP
9.9%
RA CAPITAL MANAGEMENT, L.P.
9.8%
Opaleye Management Inc.
8.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Boxer Capital Management, LLC |
13D/G
|
13%
|
$37,886,199
3,149,310 shares
|
$0 | 30 Jun 2026 |
| BIOTECHNOLOGY VALUE FUND L P |
13D/G
BVF PARTNERS L P/IL
|
10%
|
$13,021,382
2,367,524 shares
|
$0 | 28 May 2026 |
| Sirenia Capital Management LP |
13D/G
|
9.9%
|
$12,138,117
2,057,308 shares
|
$0 | 31 Mar 2026 |
| RA CAPITAL MANAGEMENT, L.P. |
13D/G
|
9.8%
|
$12,828,514
2,332,457 shares
|
$0 | 28 May 2026 |
| Opaleye Management Inc. |
13F
13D/G
Company
|
8.6%
from 13D/G
|
$8,064,984
1,256,228 shares
|
— | 31 Mar 2026 |
| Point72 Asset Management, L.P. |
13D/G
|
5.7%
|
$5,656,731
958,768 shares
|
-$6,481,386 | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
3
Shares
336
Rows available
3
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
53
Q2 2026 holders
3
Holder diff
-50
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend