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Mannkind stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions−31.6% to $3.90
Mannkind (MNKD) stock fell 32% over the last 252 sessions, to $3.90. On the way it reported 4 quarters, its insiders filed 1 open-market trade and 5 Form 144 notices of planned sales, and the company filed 0 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 5, 2026 | Earnings | Earnings: missed the EPS estimate by -33.3% | −4.4% (+0.1% vs SPY) | — | — |
| Sep 25, 2026 | Form 144 | Form 144: Steven Binder plans to sell $128K | +1.5% (+1.0% vs SPY) | +18.3% (+18.7% vs SPY) | −3.1% (−2.2% vs SPY) |
| Sep 10, 2026 | Form 144 | Form 144: Steven Binder plans to sell $132K | −3.9% (−3.3% vs SPY) | −10.4% (−9.3% vs SPY) | −14.2% (−15.9% vs SPY) |
| Aug 7, 2026 | Form 144 | Form 144: Steven Binder plans to sell $152K | +5.5% (+4.9% vs SPY) | −4.2% (−5.4% vs SPY) | +4.3% (+4.1% vs SPY) |
| Aug 5, 2026 | Earnings | Earnings: missed the EPS estimate by -160.0% | +3.5% (+3.7% vs SPY) | −3.1% (−3.0% vs SPY) | +2.0% (+2.8% vs SPY) |
| Jul 17, 2026 | Form 144 | Form 144: Steven Binder plans to sell $212K | −0.2% (+0.7% vs SPY) | −3.8% (−2.1% vs SPY) | −4.9% (−8.2% vs SPY) |
| Jul 17, 2026 | Form 144 | Form 144: David Thomson plans to sell $97K | −0.2% (+0.7% vs SPY) | −3.8% (−2.1% vs SPY) | −4.9% (−8.2% vs SPY) |
| May 6, 2026 | Earnings | Earnings: missed the EPS estimate by -399.9% | +21.9% (+20.5% vs SPY) | +13.7% (+11.7% vs SPY) | +20.8% (+16.2% vs SPY) |
| Mar 10, 2026 | Insider buy | Castagna Michael bought $259K | −2.6% (−2.5% vs SPY) | +3.3% (+4.7% vs SPY) | −2.7% (−2.6% vs SPY) |
| Feb 26, 2026 | Earnings | Earnings: missed the EPS estimate by -66.7% | −7.7% (−7.2% vs SPY) | −17.1% (−15.9% vs SPY) | −42.0% (−35.0% vs SPY) |
Insiders’ record here
In the year on the chart, Mannkind's insiders reported 1 open-market buy ($259K) and 0 sales ($0). Of the 1 old enough to score, 1 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was +27.9% and after a sale —.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
Report card: every quarter against the estimate → Mannkind: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.