Q32 Bio QTTB Insider Ownership

NASDAQ QTTB
$11.14 -0.55 (-4.71%)
As of: Sep 9, 2026 · 3:59 PM EDT

Insider Holdings by Owner

1.57Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2024
Insider Ownership
share count not reported for this filer set
Shares Held by Insiders
4.09Mn
filed for Sep 2024
0.00% QoQ
Shares Outstanding
12.24Mn
12,240,542 shares
Direct Holdings
0
Indirect: 4.09Mn
Net Shares Traded (QoQ)
0
no net change in Sep 2024
Insiders Holding Shares
14
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, 2024

QTTB's three largest insider shareholders as of September 09, 2026 are Diyong Xu (Director, 625.00K shares), Jodie Pope Morrison (Ceo, 343.26K shares), Albert Seymour (Chief Scientific Officer, 150.87K shares).

Form 4 Holdings

Insiders Holding QTTB

Insiders 14
Shares held 1.57Mn
Of outstanding 12.82%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Diyong Xu Director, TenPercentOwner 0 625,000 625,000 39.8% 01 Jun, 2026
2 Jodie Pope Morrison Ceo 343,259 0 343,259 21.9% 27 Aug, 2026
3 Albert Seymour Chief Scientific Officer 150,874 0 150,874 9.6% 08 Sep, 2023
4 Lee Kalowski Cfo And President 138,471 0 138,471 8.8% 27 Aug, 2026
5 Arthur Tzianabos President Ceo 128,778 0 128,778 8.2% 15 Feb, 2024
6 Shelia M. Violette Chief Scientific Officer 127,771 0 127,771 8.1% 27 Aug, 2026
7 Jason Campagna Chief Medical Officer 37,500 0 37,500 2.4% 26 Feb, 2025
8 W Bradford Smith Cfo Treasurer 14,219 0 14,219 0.9% 11 Jan, 2023
9 Timothy P Kelly Chief Operating Officer 2,224 0 2,224 0.1% 12 Jan, 2022
10 Michael Lee Blum Chief Commercial Officer 752 0 752 0.0% 11 Jan, 2023
11 Julie Jordan Chief Medical Officer 416 0 416 0.0% 07 Aug, 2023
12 Gabriel Cohn Chief Medical Officer 146 0 146 0.0% 12 Jan, 2022
13 Paul Alloway Officer 144 0 144 0.0% 23 Apr, 2024
14 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

1,569 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2024
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
25 Aug, 2026 Shelia M. Violette Chief Scientific Officer Disposed S 2,798 $16.56 $46.33K 127,771 Direct
25 Aug, 2026 Lee Kalowski Cfo And President Disposed S 3,972 $16.56 $65.78K 138,471 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 Mary Thistle 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 Sven Ante Lundberg 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
12 Jun, 2026 Arthur Tzianabos 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
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
16 Jul, 2026 Jodie Pope Morrison Ceo Acquired A 132,000 $0.00 $0 353,104 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 Mary Thistle Director Acquired A 9,810 $0.00 $0 9,810 Direct
12 Jun, 2026 Arthur Tzianabos Director Acquired A 9,810 $0.00 $0 9,810 Direct