VIECELI JOHN S.

PrivateCIK: 2032947
Location

BRANFORD, CT

VIECELI JOHN S. (Chief Product Officer) sold 2.6% of their position (30.22K shares) of QUANTUM-SI INC on the open market

Open‑market sale worth $28.1K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderVIECELI JOHN S.CIK 2032947
IssuerQUANTUM-SI INCCIK 1816431
Officer· Chief Product Officer
Since Mar 2026
-30.22K
Net shares
Net seller
$28.1K
Total sold
2
Open market trades
0B · 2S
2
Total transactions
30.22K disposed
Non-Derivative Transactions2

Class A Common Stock

Direct
S · Sale

Shares

15.11K

Price / share

$0.96

Trade value

$14.47K

% of position

1.3%
6/22/2026
1.17M1.16M

Class A Common Stock

Direct
S · Sale

Shares

15.11K

Price / share

$0.90

Trade value

$13.59K

% of position

1.3%
6/23/2026
1.16M1.14M
Total

Net shares

30.22K

Net value

-$28.05K

Derivative Transactions0
No derivative transactions reported