Over 12 months, Mannkind Corp saw more selling than buying from its insiders — purchases of about $259,000 against sales of $3.3 million.
Biggest single buyer: Castagna Michael, CEO, with roughly $259,000. C-suite participation is part of the picture here.
On the institutional side, 259 funds reported holding MNKD at the end of Q2 2026, and more funds bought than sold. Zooming out by quarter: 6 quarters in a row of net selling by insiders. Insiders bought in 1 of the last 7 full quarters.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Sep 28, 2026 | Binder Steven B. | Director | Sell | 39,051 | $3.29 | $128K | SEC |
| Sep 14, 2026 | Binder Steven B. | Director | Sell | 33,558 | $3.81 | $128K | SEC |
| Aug 10, 2026 | Binder Steven B. | Director | Sell | 39,051 | $4.06 | $159K | SEC |
| Jul 17, 2026 | Thomson David | Executive Officer | Sell | 24,109 | $4.05 | $98K | SEC |
| Jul 17, 2026 | Binder Steven B. | Director | Sell | 52,485 | $4.06 | $213K | SEC |
| May 13, 2026 | Binder Steven B. | Director | Sell | 16,940 | $3.29 | $56K | SEC |
| May 13, 2026 | Thomson David | Executive Officer | Sell | 3,033 | $3.29 | $10K | SEC |
| Mar 10, 2026 | Castagna Michael | CEO | Buy | 100,000 | $2.59 | $259K | SEC |
| Jan 9, 2026 | Tross Stuart A | Executive Officer | Sell | 47,006 | $6.33 | $298K | SEC |
| Dec 19, 2025 | Castagna Michael | CEO | Sell | 65,804 | $6.01 | $395K | SEC |
| Dec 16, 2025 | Castagna Michael | CEO | Sell | 20,806 | $6.00 | $125K | SEC |
| Dec 16, 2025 | Castagna Michael | CEO | Sell | 21,310 | $6.00 | $128K | SEC |
| Dec 4, 2025 | Castagna Michael | CEO | Sell | 107,920 | $5.57 | $601K | SEC |
| Dec 4, 2025 | Thomson David | Executive Officer | Sell | 147,780 | $5.57 | $823K | SEC |
| Nov 14, 2025 | Singh Sanjay R | Executive Officer | Sell | 18,777 | $5.03 | $94K | SEC |
In the last 12 months Mannkind Corp insiders made open-market purchases worth about $259,000 and sales worth about $3.3 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in MNKD was filed on 2026-09-28.
259 investment managers reported holding MNKD in SEC Form 13F filings for Q2 2026.
No congressional trades in MNKD were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).