🕵️ Pulmonx Corp ($LUNG)

SEC insider & ownership activity, last 12 months · CIK 1127537 · every row links its SEC filing

Over the last 12 months insiders sold $548K with no open-market buying against it. Glendon E. French III sold $292K (Dec–Sep). Primecap Management CO/CA/ trimmed 13.6% → 12.2%. No red-flag 8-Ks in the window.

🚨 3 signals active — planned-vs-executed verdicts, pre-event flags, and cluster context live in the API and the alerts bot.
Oct 2025: net +$0 Nov 2025: net +$0 Dec 2025: net -$86K Jan 2026: net +$0 Feb 2026: net +$0 Mar 2026: net -$141K Apr 2026: net +$0 May 2026: net +$0 Jun 2026: net -$144K Jul 2026: net +$0 Aug 2026: net +$0 Sep 2026: net -$177K
Monthly net open-market insider flow, last 12 months (up = net buying)

Insider flow

0 buyers, $0 (0 lots) · 5 sellers, $548K (55 lots)

InsiderBuysBoughtSellsSoldLast
Glendon E. French III0 10$292KSep 1, 2026
Lehman David Aaron0 16$89KSep 1, 2026
Radhakrishnan Srikanth0 12$70KSep 1, 2026
Rose Geoffrey Beran0 16$51KSep 1, 2026
Daniel P. Florin0 1$46KDec 8, 2025

5%+ holders

HolderStakeClassScheduleEvent
Primecap Management CO/CA/ 12.2% 13GNov 13, 2025 filing ↗
Morgan Stanley 6.9% 13GAug 13, 2026 filing ↗
Morgan Stanley Capital Services LLC 6.8% 13GAug 13, 2026 filing ↗
Soleus Capital Master Fund, L.P. 6.5% 13GMar 9, 2026 filing ↗
Soleus Capital, LLC 6.5% 13GMar 9, 2026 filing ↗
Soleus Capital Group, LLC 6.5% 13GMar 9, 2026 filing ↗
Soleus Capital Management, L.P. 6.5% 13GMar 9, 2026 filing ↗
Soleus GP, LLC 6.5% 13GMar 9, 2026 filing ↗
Guy Levy 6.5% 13GMar 9, 2026 filing ↗

Planned insider sales (Form 144)

SellerPlannedApprox. sale date
Steven Williamson$95KJan 22, 2026 filing ↗
Steven Williamson$31KJan 15, 2026 filing ↗
Steven Williamson$62KJan 14, 2026 filing ↗
Daniel P. Florin$46KDec 8, 2025 filing ↗

Material events (8-K)

ItemEvent date
Earnings (2.02)Jul 29, 2026 filing ↗
Shareholder vote (5.07)Jun 4, 2026 filing ↗
Earnings (2.02)Apr 29, 2026 filing ↗
Earnings (2.02)Mar 4, 2026 filing ↗
Material agreement (1.01)Mar 2, 2026 filing ↗
Agreement terminated (1.02)Mar 2, 2026 filing ↗
New financial obligation (2.03)Mar 2, 2026 filing ↗
Unregistered equity sale (3.02)Mar 2, 2026 filing ↗
Financial Statements and Exhibits (9.01)Mar 2, 2026 filing ↗
Earnings (2.02)Nov 12, 2025 filing ↗
Earnings (2.02)Oct 21, 2025 filing ↗
Officer/director changes (5.02)Oct 21, 2025 filing ↗
Financial Statements and Exhibits (9.01)Oct 21, 2025 filing ↗