PROLUNG INC
Net SellingLUNG·US·🇺🇸 US
3%buys·97%sales
417 transactions$1.9MTotal buys·8 buys
$200.1MTotal sells·258 sells
1717 insiders
Last: Dec 8, 2025
| Date | Insider | Type | Value | |
|---|---|---|---|---|
| Dec 8, 25 | Florin Daniel P | Sell | $46K | |
| Dec 1, 25 | Sung Derrick | Grant | - | |
| Dec 1, 25 | French Glendon E. III | Grant | - | |
| Dec 1, 25 | Lehman David Aaron | Sell | $5K | |
| Dec 1, 25 | Lehman David Aaron | Sell | $2K | |
| Dec 1, 25 | Lehman David Aaron | Sell | $6K | |
| Dec 1, 25 | Lehman David Aaron | Sell | $3K | |
| Dec 1, 25 | Sung Derrick | Grant | - | |
| Dec 1, 25 | Rose Geoffrey Beran | Sell | $4K | |
| Dec 1, 25 | Rose Geoffrey Beran | Sell | $1K |
PROLUNG INC is seeing coordinated insider selling. 3 insiders sold shares in the last 30 days, with total sell volume of $67K. Overall insider sentiment is bearish (97% sales).
PROLUNG INC (LUNG) has recorded 417 insider operations, including 8 open-market purchases ($1.9M), 258 sales ($200.1M) and 151 other operations (stock option exercises, grants, tax dispositions, donations). The insider sentiment is bearish (97% sales).
PROLUNG INC shows moderate insider activity with 6 active months out of the last 12, typical of a company whose trading windows are concentrated around financial disclosures.
Among the most active insiders are French Glendon E. III (CEO), Williamson Steve S (CEO) & Sung Derrick (CFO), with respectively 96, 62, 58 transactions.
Across all 417 recorded transactions, the breakdown by type is: sales (258, 62%), grant (91, 22%), exercise (58, 14%), buys (8, 2%), other (1, 0%).
Data sourced from regulatory filings (SEC Form 4, AMF, BaFin, FI, and other European authorities).
PROLUNG INC has recorded 417 insider operations in total, including 8 open-market purchases ($1.9M), 258 sales ($200.1M) and 151 other operations (stock option exercises, grants, tax dispositions, donations). The most recent transaction was recorded on December 8, 2025.
Insiders at PROLUNG INC are currently net sellers, with 3% purchases and 97% sales across all reported transactions. Total buy volume is $1.9M versus $200.1M in sales, indicating a bearish insider sentiment.
InsiderLens tracks 17 insiders at PROLUNG INC (LUNG). French Glendon E. III (CEO, 96 tx), Williamson Steve S (CEO, 62 tx), Sung Derrick (CFO, 58 tx). Data is sourced from mandatory regulatory filings for persons with access to privileged information.
The insider signal for LUNG is bearish, based on a 3% buy ratio across 266 buy and sell transactions reported to financial regulators. Transactions from C-suite executives (CEO, CFO) and board members are generally considered the most informative signals.
Insider trading data for PROLUNG INC comes from official regulatory filings: SEC Form 4 (United States), AMF (France), BaFin (Germany), FI (Sweden), and other European financial authorities. These filings are mandatory for directors, officers, and holders of more than 10% of a company's shares. InsiderLens aggregates and normalizes this data for analysis.