Christopher B. Prentiss

CIK: 0001717583

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)5 (55.6%)

Compensation grants

Other (G, F, J, C, D, …)4 (44.4%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MNKD

MANNKIND CORP

Officer

Discretionary Trading P&L

Holdings

Transaction History (9 total)

MNKD
MANNKIND CORP
Jul 15, 2026
Tax Payment(F)
Direct
10.7K shares at avg. $4.09$44K
MNKD
MANNKIND CORP
Jul 15, 2026
Tax Payment(F)
Direct
11.6K shares at avg. $4.09$47K
MNKD
MANNKIND CORP
Apr 22, 2026
Tax Payment(F)
Direct
12.3K shares at avg. $2.74$34K
MNKD
MANNKIND CORP
Mar 23, 2026
Award(A)
Employee Stock Option (right to buy)
Direct
217K shares-
MNKD
MANNKIND CORP
Mar 23, 2026
Award(A)
Performance Restricted Stock Unit
Direct
221K shares-
MNKD
MANNKIND CORP
Mar 1, 2026
Award(A)
Direct
5K shares at avg. $3.27$16K
MNKD
MANNKIND CORP
Jul 15, 2025
Tax Payment(F)
Direct
11.5K shares at avg. $3.85$44K
MNKD
MANNKIND CORP
May 13, 2025
Award(A)
Direct
119K shares-
MNKD
MANNKIND CORP
May 15, 2024
Award(A)
Direct
103.6K shares-

		Type	Shares	Price		Ownership
Jul 15, 2026	MNKD MANNKIND CORP	Tax Payment(F)	10,675	$4.09	$43,661	Direct
Jul 15, 2026	MNKD MANNKIND CORP	Tax Payment(F)	11,572	$4.09	$47,329	Direct
Apr 22, 2026	MNKD MANNKIND CORP	Tax Payment(F)	12,267	$2.74	$33,612	Direct
Mar 23, 2026	MNKD MANNKIND CORP	Award(A) Employee Stock Option (right to buy)	217,000	-	-	Direct
Mar 23, 2026	MNKD MANNKIND CORP	Award(A) Performance Restricted Stock Unit	221,000	-	-	Direct
Mar 1, 2026	MNKD MANNKIND CORP	Award(A)	5,000	$3.27	$16,350	Direct
Jul 15, 2025	MNKD MANNKIND CORP	Tax Payment(F)	11,540	$3.85	$44,429	Direct
May 13, 2025	MNKD MANNKIND CORP	Award(A)	119,000	-	-	Direct
May 15, 2024	MNKD MANNKIND CORP	Award(A)	103,600	-	-	Direct

1-9 of 9 transactions

About Prentiss Christopher B

Prentiss Christopher B (SEC CIK 0001717583) files insider reports with the SEC as Chief Financial Officer of MANNKIND CORP (MNKD).

Signal8 holds 7 ownership filings by Prentiss Christopher B, all Form 4s, filed between Mar 28, 2025 and Jul 17, 2026. Those filings report 9 transactions, from May 15, 2024 to Jul 15, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Prentiss Christopher B's filings is in DANBURY, CT.

Recent filings by Prentiss Christopher B

Jul 15, 2026: Tax withholdings of MNKD shares (2 lines, Form 4, code F).
Apr 22, 2026: Tax withholding of MNKD shares (Form 4, code F).
Mar 23, 2026: Grants or awards of MNKD derivative securities (2 lines, Form 4, code A).
Mar 1, 2026: Grant or award of MNKD shares (Form 4, code A).
Jul 15, 2025: Tax withholding of MNKD shares (Form 4, code F).

Other insiders filing for MANNKIND CORP (MNKD)

Binder Steven B., Director
Marasco Dominic, Pres, Endocrine Business Unit
Tross Stuart A, Chief People & Workpl Officer
Castagna Michael, Chief Executive Officer
Singh Sanjay R, EVP Technical Operations
Thomson David, EVP Genl Counsel & Secretary

How to read Form 4 transaction codes