MannKind Corporation

Healthcare

NASDAQ:MNKD · NASDAQ Global Market

Market Cap $1.13B Beta 1.11 P/E (TTM) -47.2

$3.66 -2.40%

-$0.09 today

52W Low $2.23High $6.51

Vol 3.84M · Avg 5.83M

EPS (TTM)-$0.08

Biotechnology

Management

Put operating results in leadership context

Review returns on capital, executive background, insider transactions, and growth quality to judge whether management is compounding value well.

Return Metrics

ROE, ROIC & ROA over time

Management

ROE

-11.5%

avg 21.1%

ROIC

5.8%

avg -6.8%

ROA

0.7%

avg -50.1%

Analysis

ROIC is currently the strongest return metric at 5.8% versus its period average of -6.8%. 0 of 3 return metrics are above their quality threshold, which helps indicate how efficiently the company turns capital and assets into profit.

Management

Key executives, compensation & ownership

Management

Name	Title	Compensation	Tenure	Age	Shares Owned	Ownership %
Michael E. Castagna	Chief Executive Officer & Director	$1.61M	—	50	$82,781.00	0.03%
David Thomson	Executive Vice President, General Counsel & Secretary	$1.02M	—	59	$826,299.00	0.27%
Stuart A. Tross	Chief People & Workplace Officer	$812,215.00	—	59	$1.03M	0.33%
Christopher Prentiss	Chief Financial Officer	$753,319.00	—	51	$338,924.00	0.11%
Dominic Marasco	President of Endocrine Business Unit	$717,723.00	—	54	$344,246.00	0.11%
Sanjay Singh	Executive Vice President of Technical Operations	$364,529.00	—	60	$221,000.00	0.07%
Ajay Ahuja	Executive VP & Chief Medical Officer	—	—	56	$221,000.00	0.07%

Insider Trading

SEC Form 4 transactions — last 12 months

Management

Buys

$259,000.00

Sells

$2.98M

Net Sentiment

$2.72M

Net selling

Most Active

Castagna Michael

4 transactions

Date	Insider	Type	Shares	Price	Value
May 12, 2026	Thomson David Direct	Sell	3.0K	$3.29	$9,978.57
May 12, 2026	Binder Steven B. Direct	Sell	16.9K	$3.29	$55,732.60
Mar 10, 2026	Castagna Michael Direct	Buy	100.0K	$2.59	$259,000.00
Jan 8, 2026	Tross Stuart A Direct	Sell	47.0K	$6.33	$297,547.98
Dec 17, 2025	Castagna Michael Direct	Sell	65.8K	$6.01	$395,482.04
Dec 16, 2025	Castagna Michael Direct	Sell	21.3K	$6.00	$127,860.00
Dec 2, 2025	Castagna Michael Direct	Sell	107.9K	$5.57	$601,114.40
Dec 2, 2025	Thomson David Direct	Sell	147.8K	$5.57	$823,134.60
Nov 14, 2025	Singh Sanjay R Direct	Sell	18.8K	$5.03	$94,448.31
Sep 16, 2025	Tross Stuart A Direct	Sell	47.0K	$5.34	$250,980.00

1–10 of 12

Analysis

Insiders reported 1 buys worth $259,000.00 and 11 sells worth $2.98M over the last 12 months. That adds up to net selling of $2.72M. Castagna Michael was the most active insider with 4 transactions.