Q32 Bio QTTB Insider Ownership

NASDAQ QTTB
$9.54 +0.31 (+3.36%)
As of: Sep 29, 2026 · 3:59 PM EDT

Insider Holdings by Owner

1.97Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
9.68%
▲+2.11% pp QoQ
Shares Held by Insiders
1.97Mn
filed for Sep 2026
▲+27.86% QoQ
Shares Outstanding
20.34Mn
20,342,345 shares
Direct Holdings
718.48K
Indirect: 1.25Mn
Net Shares Traded (QoQ)
+428.89K
net buying in Sep 2026
Insiders Holding Shares
16
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

As of September 29, 2026, Q32 Bio's top three insider holders are Advisors Llc Orbimed (Director, 625.00K shares), Diyong Xu (Director, 625.00K shares), Jodie Pope Morrison (Ceo, 343.26K shares).

Form 4 Holdings

Insiders Holding QTTB

Insiders 16
Shares held 1.97Mn
Of outstanding 9.68%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Advisors Llc Orbimed Director, TenPercentOwner 0 625,000 625,000 31.8% 01 Jun, 2026
2 Diyong Xu Director, TenPercentOwner 0 625,000 625,000 31.8% 01 Jun, 2026
3 Jodie Pope Morrison Ceo 343,259 0 343,259 17.4% 27 Aug, 2026
4 Lee Kalowski Cfo And President 138,471 0 138,471 7.0% 27 Aug, 2026
5 Shelia M. Violette Chief Scientific Officer 127,771 0 127,771 6.5% 27 Aug, 2026
6 Isaac Manke Director 53,521 0 53,521 2.7% 02 Jul, 2026
7 Jason Campagna Chief Medical Officer 37,500 0 37,500 1.9% 26 Feb, 2025
8 Albert Seymour Chief Scientific Officer 8,383 0 8,383 0.4% 08 Sep, 2023
9 Arthur Tzianabos President Ceo 7,155 0 7,155 0.4% 15 Feb, 2024
10 W Bradford Smith Cfo Treasurer 790 0 790 0.0% 11 Jan, 2023
11 Michael Lee Blum Chief Commercial Officer 752 0 752 0.0% 11 Jan, 2023
12 Julie Jordan Chief Medical Officer 416 0 416 0.0% 07 Aug, 2023
13 Gabriel Cohn Chief Medical Officer 146 0 146 0.0% 12 Jan, 2022
14 Paul Alloway Officer 144 0 144 0.0% 23 Apr, 2024
15 Timothy P Kelly Chief Operating Officer 124 0 124 0.0% 12 Jan, 2022
16 Charles Jr Michaud Officer 52 0 52 0.0% 23 Apr, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

483 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
25 Aug, 2026 Lee Kalowski Cfo And President Disposed S 3,972 $16.56 $65.78K 138,471 Direct
25 Aug, 2026 Shelia M. Violette Chief Scientific Officer Disposed S 2,798 $16.56 $46.33K 127,771 Direct
25 Aug, 2026 Jodie Pope Morrison Ceo Disposed S 9,845 $16.56 $163.03K 343,259 Direct
12 Jun, 2026 Diyong Xu Director, TenPercentOwner Acquired A 10,826 $0.00 $0 10,826 Direct
12 Jun, 2026 Kathleen Laporte Director Acquired A 10,826 $0.00 $0 10,826 Direct
12 Jun, 2026 Isaac Manke Director Acquired A 10,826 $0.00 $0 10,826 Direct
12 Jun, 2026 Sven Ante Lundberg Director Acquired A 10,826 $0.00 $0 10,826 Direct
12 Jun, 2026 Mark T Iwicki Director Acquired A 10,826 $0.00 $0 10,826 Direct
12 Jun, 2026 Mary Thistle Director Acquired A 10,826 $0.00 $0 10,826 Direct
12 Jun, 2026 David S. Grayzel Director Acquired A 10,826 $0.00 $0 10,826 Direct
12 Jun, 2026 Arthur Tzianabos Director Acquired A 10,826 $0.00 $0 10,826 Direct
16 Jul, 2026 Jodie Pope Morrison Ceo Acquired A 132,000 $0.00 $0 353,104 Direct
16 Jul, 2026 Lee Kalowski Cfo And President Acquired A 53,250 $0.00 $0 142,443 Direct
16 Jul, 2026 Shelia M. Violette Chief Scientific Officer Acquired A 37,500 $0.00 $0 130,569 Direct
30 Jun, 2026 Isaac Manke Director Acquired M 53,521 $2.80 $149.86K 53,521 Direct
30 Jun, 2026 Isaac Manke Director Disposed M 53,521 $0.00 $0 0 Direct
12 Jun, 2026 Kathleen Laporte Director Acquired A 9,810 $0.00 $0 9,810 Direct
12 Jun, 2026 Mark T Iwicki Director Acquired A 9,810 $0.00 $0 9,810 Direct
12 Jun, 2026 Sven Ante Lundberg Director Acquired A 9,810 $0.00 $0 9,810 Direct
12 Jun, 2026 Isaac Manke Director Acquired A 9,810 $0.00 $0 9,810 Direct