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MNKD Insider Trading & Form 4 Activity

MANNKIND CORP
Last filing: Jul 17, 2026·3 days ago
NEUTRAL · LAST 90 DAYS
0%
buyers
$0
0 buys
$0
0 sells
$0
net buying
0
insiders
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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Binder Steven B.
Director
$269K
-$269K
Thomson David
EVP Genl Counsel & Secretary
$108K
-$108K
Prentiss Christopher B
Chief Financial Officer
$0
Tross Stuart A
Chief People & Workpl Officer
$0
Castagna Michael
Chief Executive Officer
$0
Singh Sanjay R
EVP Technical Operations
$0
Marasco Dominic
Pres, Endocrine Business Unit
$0
Consiglio Ronald J
Director
$0

Recent transactions

Every Form 4 transaction for MNKD, newest first.

SELL10b5-1
Thomson David · EVP Genl Counsel & Secretary
Tx Jul 17·Filed Jul 17·EDGAR ↗
24,109 sh @ $4.05
$98K
SELL10b5-1
Binder Steven B. · Director
Tx Jul 17·Filed Jul 17·EDGAR ↗
52,485 sh @ $4.06
$213K
TAX
Prentiss Christopher B · Chief Financial Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
11,572 sh @ $4.09
$47K
EXERCISE
Tross Stuart A · Chief People & Workpl Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
93,790 sh
TAX
Tross Stuart A · Chief People & Workpl Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
33,652 sh @ $4.09
$138K
TAX
Tross Stuart A · Chief People & Workpl Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
8,253 sh @ $4.09
$34K
TAX
Tross Stuart A · Chief People & Workpl Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
11,572 sh @ $4.09
$47K
TAX
Tross Stuart A · Chief People & Workpl Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
12,331 sh @ $4.09
$50K
EXERCISE10b5-1
Binder Steven B. · Director
Tx Jul 15·Filed Jul 17·EDGAR ↗
93,790 sh
TAX10b5-1
Binder Steven B. · Director
Tx Jul 15·Filed Jul 17·EDGAR ↗
15,688 sh @ $4.09
$64K
TAX10b5-1
Binder Steven B. · Director
Tx Jul 15·Filed Jul 17·EDGAR ↗
4,073 sh @ $4.09
$17K
TAX10b5-1
Binder Steven B. · Director
Tx Jul 15·Filed Jul 17·EDGAR ↗
4,634 sh @ $4.09
$19K
EXERCISE
Castagna Michael · Chief Executive Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
350,260 sh
TAX
Castagna Michael · Chief Executive Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
192,819 sh @ $4.09
$789K
TAX
Castagna Michael · Chief Executive Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
47,481 sh @ $4.09
$194K
TAX
Castagna Michael · Chief Executive Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
63,996 sh @ $4.09
$262K
TAX
Castagna Michael · Chief Executive Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
58,904 sh @ $4.09
$241K
EXERCISE
Singh Sanjay R · EVP Technical Operations
Tx Jul 15·Filed Jul 17·EDGAR ↗
70,550 sh
TAX
Singh Sanjay R · EVP Technical Operations
Tx Jul 15·Filed Jul 17·EDGAR ↗
22,047 sh @ $4.09
$90K
TAX
Singh Sanjay R · EVP Technical Operations
Tx Jul 15·Filed Jul 17·EDGAR ↗
5,372 sh @ $4.09
$22K
TAX
Singh Sanjay R · EVP Technical Operations
Tx Jul 15·Filed Jul 17·EDGAR ↗
10,079 sh @ $4.09
$41K
TAX
Singh Sanjay R · EVP Technical Operations
Tx Jul 15·Filed Jul 17·EDGAR ↗
9,297 sh @ $4.09
$38K
TAX
Prentiss Christopher B · Chief Financial Officer
Tx Jul 15·Filed Jul 17·EDGAR ↗
10,675 sh @ $4.09
$44K
EXERCISE10b5-1
Thomson David · EVP Genl Counsel & Secretary
Tx Jul 15·Filed Jul 17·EDGAR ↗
93,790 sh
TAX10b5-1
Thomson David · EVP Genl Counsel & Secretary
Tx Jul 15·Filed Jul 17·EDGAR ↗
51,632 sh @ $4.09
$211K
TAX10b5-1
Thomson David · EVP Genl Counsel & Secretary
Tx Jul 15·Filed Jul 17·EDGAR ↗
12,662 sh @ $4.09
$52K
TAX10b5-1
Thomson David · EVP Genl Counsel & Secretary
Tx Jul 15·Filed Jul 17·EDGAR ↗
17,754 sh @ $4.09
$73K
TAX10b5-1
Thomson David · EVP Genl Counsel & Secretary
Tx Jul 15·Filed Jul 17·EDGAR ↗
16,378 sh @ $4.09
$67K
TAX
Marasco Dominic · Pres, Endocrine Business Unit
Tx Jul 15·Filed Jul 17·EDGAR ↗
3,623 sh @ $4.09
$15K
AWARD
Consiglio Ronald J · Director
Tx May 20·Filed May 22·EDGAR ↗
10,000 sh @ $2.95
$30K
AWARD
Tross Stuart A · Chief People & Workpl Officer
Tx May 20·Filed May 22·EDGAR ↗
33,898 sh @ $2.95
$100K
AWARD
Marasco Dominic · Pres, Endocrine Business Unit
Tx May 20·Filed May 22·EDGAR ↗
8,474 sh @ $2.95
$25K
SELL10b5-1
Binder Steven B. · Director
Tx May 12·Filed May 13·EDGAR ↗
16,940 sh @ $3.29
$56K
SELL10b5-1
Thomson David · EVP Genl Counsel & Secretary
Tx May 12·Filed May 13·EDGAR ↗
3,033 sh @ $3.29
$10K
TAX10b5-1
Thomson David · EVP Genl Counsel & Secretary
Tx May 11·Filed May 13·EDGAR ↗
12,387 sh @ $3.52
$44K
TAX10b5-1
Binder Steven B. · Director
Tx May 11·Filed May 13·EDGAR ↗
5,560 sh @ $3.52
$20K
TAX
Tross Stuart A · Chief People & Workpl Officer
Tx May 11·Filed May 13·EDGAR ↗
8,073 sh @ $3.52
$28K
TAX
Castagna Michael · Chief Executive Officer
Tx May 11·Filed May 13·EDGAR ↗
34,957 sh @ $3.52
$123K

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About MNKD insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for MNKD from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying MNKD always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on MANNKIND CORP (MNKD) when they form.

Where does MNKD insider trading data come from?

Every Form 4 filing for MNKD is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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