Insiders Trades
Total declarations
Company
▲ Purchases (6 ops.)
▼ Sales (12 ops.)
Latest filing published 17 Jul 2026 for Mannkind CORP. Read the official filing
Filing timeline
BuySaleMichael Castagna
Insider track record
Disclosed buys
6
Disclosed sells
12
T+90 hit rate
80%
T+90 mean return
+29.1%
Across 5 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Michael Castagna: trading record in brief
Michael Castagna is a declared insider of Mannkind Corp (chief executive), with filings sourced from SEC (Form 4). We count 52 filings; the first trade dates from 18 May 2021 and the latest from 15 July 2026.
The open-market side counts 6 purchases for €323k alongside 12 sales for €464k. Netting one side against the other leaves €140k of net selling. Unlike grants, an open-market purchase is paid for by the insider, at the market price. The rest of the record consists of 28 share grants and 4 option exercises. 2026 to date brings 1 purchase and no sales.
The median purchase comes to €11k. Clusters matter here: 5 out of 6 purchases overlapped with buying by a colleague within 30 days. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase.
Most recently, on 17 July 2026, the filings show an option exercise in Mannkind Corp. The most recent open-market purchase was published on 10 March 2026, 222 days ago. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. For comparison, the SEC allows two business days to file a Form 4. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to Michael Castagna
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations52 total
350,260 shares0Common Stock, $0.01 Par ValueSEC:0001193125-26-308133:0
47,481 shares@ US$4.090.016% mcap2.0% of flowCommon Stock, $0.01 Par ValueSEC:0001193125-26-308133:2
63,996 shares@ US$4.090.022% mcap2.7% of flowCommon Stock, $0.01 Par ValueSEC:0001193125-26-308133:3
192,819 shares@ US$4.090.066% mcap8.0% of flowCommon Stock, $0.01 Par ValueSEC:0001193125-26-308133:1
58,904 shares@ US$4.090.020% mcap2.5% of flowCommon Stock, $0.01 Par ValueSEC:0001193125-26-308133:4
100,000 shares@ US$2.5916.0% of flowCommon Stock, $0.01 Par ValueSEC:0001193125-26-100839:0
Canonical exit: 8 Jun 2026 (T+90)
15,290 shares@ US$3.273.0% of flowCommon Stock, $0.01 Par ValueSEC:0001193125-26-086379:0
44,171 shares0Common Stock, $0.01 Par ValueSEC:0001193125-25-335655:0
65,804 shares@ US$4.5522.6% of flowCommon Stock, $0.01 Par ValueSEC:0001193125-25-327227:0
20,806 shares@ US$4.559.2% of flowCommon Stock, $0.01 Par ValueSEC:0001193125-25-321366:0
107,920 shares@ US$4.5553.4% of flowCommon Stock, $0.01 Par ValueSEC:0001193125-25-308350:0
111,275 shares@ US$3.85100.0% of flowCommon Stock, $0.01 Par ValueSEC:0000950170-25-096740:0
26,114 shares@ US$4.371.4% of flowCommon Stock, $0.01 Par ValueSEC:0000950170-25-075538:0
27,000 shares@ US$4.561.5% of flowCommon Stock, $0.01 Par ValueSEC:0000950170-25-073801:0
298,560 shares0Common Stock, $0.01 Par ValueSEC:0000950170-25-073078:0
39,500 shares0Common Stock, $0.01 Par ValueSEC:0000950170-25-051315:0
56,085 shares@ US$5.383.7% of flowCommon Stock, $0.01 Par ValueSEC:0000950170-24-102043:0
5,000 shares@ US$3.090.2% of flowCommon Stock, $0.01 Par ValueSEC:0000950170-24-084404:0
221,480 shares@ US$4.5912.7% of flowCommon Stock, $0.01 Par ValueSEC:0000950170-24-063261:0
465,000 shares0Common Stock, $.01 Par ValueSEC:0000950170-24-062071:0
34,830 shares@ US$4.321.9% of flowCommon Stock, $.01 Par ValueSEC:0000950170-24-059961:0
4,635 shares@ US$3.460.2% of flowCommon Stock, $0.01 Par ValueSEC:0001209191-24-002738:0
10,000 shares@ US$4.000.5% of flowCommon Stock, $.01 Par ValueSEC:0001209191-23-058899:0
10,000 shares@ US$4.250.5% of flowCommon Stock, $.01 Par ValueSEC:0001209191-23-054255:0
10,000 shares@ US$4.080.5% of flowCommon Stock, $.01 Par ValueSEC:0001209191-23-051766:0
25 of 52 declarations
