OCONNOR SEAN MICHAEL

PrivateCIK: 1208362
Location

ALTEMONTE SPRINGS, FL

OCONNOR SEAN MICHAEL (CEO/President) sold 19.5% of their position (300K shares) of STONEX GROUP INC. on the open market

Open‑market sale worth $33.17M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales
InsiderOCONNOR SEAN MICHAELCIK 1208362
IssuerSTONEX GROUP INC.CIK 913760
DirectorOfficer· CEO/President
Since Dec 2018
-300K
Net shares
Net seller
$33.17M
Total sold
3
Open market trades
0B · 3S
9
Total transactions
300K acquired · 600K disposed
Non-Derivative Transactions6

Common Stock

Direct
M · Option Exercise

Shares

+140.07K

Price / share

$13.34

Trade value

$1.87M

% of position

11.3%
5/15/2026
1.24M1.38M

Common Stock

Direct
S · Sale

Shares

140.07K

Price / share

$110.31

Trade value

$15.45M

% of position

10.2%
5/15/2026
1.38M1.24M

Common Stock

Direct
M · Option Exercise

Shares

+87.79K

Price / share

$13.34

Trade value

$1.17M

% of position

7.1%
5/18/2026
1.24M1.32M

Common Stock

Direct
S · Sale

Shares

87.79K

Price / share

$111.46

Trade value

$9.79M

% of position

6.6%
5/18/2026
1.32M1.24M

Common Stock

Direct
M · Option Exercise

Shares

+72.14K

Price / share

$13.34

Trade value

$962.35K

% of position

5.8%
5/19/2026
1.24M1.31M

Common Stock

Direct
S · Sale

Shares

72.14K

Price / share

$109.94

Trade value

$7.93M

% of position

5.5%
5/19/2026
1.31M1.24M
Total

Net shares

+0.00

Net value

-$29.16M

Derivative Transactions3

Stock Options

Direct
M · Option Exercise
Converts to

Common Stock

140.07K shares

Shares

140.07K

Strike price

13.34

Held after

1.43M

Exercisable

5/15/2026

Stock Options

Direct
M · Option Exercise
Converts to

Common Stock

87.79K shares

Shares

87.79K

Strike price

13.34

Held after

1.34M

Exercisable

5/18/2026

Stock Options

Direct
M · Option Exercise
Converts to

Common Stock

72.14K shares

Shares

72.14K

Strike price

13.34

Held after

1.27M

Exercisable

5/19/2026
Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect
Shares owned2.54M

Common Stock

Indirect
Shares owned424.35K
Total
2.97M indirect2.97M
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
OCONNOR SEAN MICHAEL — Insider Transaction (Form 4) Filed May 19, 2026 | Finecho