CASTAGNA MICHAEL

PrivateCIK: 1674282
Location

VALENCIA, CA

CASTAGNA MICHAEL (Chief Executive Officer) sold 1.7% of their position (42.12K shares) of MANNKIND CORP on the open market

Open‑market sale worth $252.7K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderCASTAGNA MICHAELCIK 1674282
IssuerMANNKIND CORPCIK 899460
DirectorOfficer· Chief Executive Officer
Since Feb 2026
-42.12K
Net shares
Net seller
$252.7K
Total sold
2
Open market trades
0B · 2S
7
Total transactions
42.12K acquired · 84.23K disposed
Non-Derivative Transactions4

Common Stock, $0.01 Par Value

Direct
M · Option Exercise

Shares

+20.81K

Price / share

$4.55

Trade value

$94.67K

% of position

0.8%
12/12/2025
2.50M2.53M

Common Stock, $0.01 Par Value

Direct
S · Sale

Shares

20.81K

Price / share

$6.00

Trade value

$124.84K

% of position

0.8%
12/12/2025
2.53M2.50M

Common Stock, $0.01 Par Value

Direct
M · Option Exercise

Shares

+21.31K

Price / share

$4.55

Trade value

$96.96K

% of position

0.9%
12/16/2025
2.50M2.53M

Common Stock, $0.01 Par Value

Direct
S · Sale

Shares

21.31K

Price / share

$6.00

Trade value

$127.86K

% of position

0.8%
12/16/2025
2.53M2.50M
Total

Net shares

+0.00

Net value

-$61.07K

Derivative Transactions3

Employee Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock, $0.01 Par Value

7.92K shares

Shares

7.92K

Strike price

4.55

Held after

0.00

Exercisable

12/12/2025

Employee Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock, $0.01 Par Value

12.89K shares

Shares

12.89K

Strike price

4.55

Held after

37.11K

Exercisable

12/12/2025

Employee Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock, $0.01 Par Value

21.31K shares

Shares

21.31K

Strike price

4.55

Held after

15.80K

Exercisable

12/16/2025
CASTAGNA MICHAEL — Insider Transaction (Form 4) Filed Dec 16, 2025 | Finecho