Stock ownership · SEC 13F · Q3 2025

PULMONX CORP

Who owns PULMONX CORP (CUSIP 745848101)? A look at the institutions behind it, how tightly they hold it, and the latest quarter's moves.

$665K
Reported value
2
Institutions
100%
Top-5 share

The verdict

As of Q3 2025, 2 institutions report $665K in PULMONX CORP positions, ownership that is dominated by its top few institutional owners.

2
institutions hold it
$665K
reported 13F value
100%
held by top 5

Based on long positions reported to the SEC as of Q3 2025; 13F omits shorts, options and non-US holdings.

How 13F ownership is computed · All tracked stocks · Concentration rankings

SEC Form 13F-HR ownership desk

CUSIP 745848101 · Q3 2025 $1M reported

VALUE-TRACE · HOLDERS-FOCUS · CONC-DOM · PHOTO-UNK · ACTIVITY-LIGHT · BOOK-MID

  • VALUE-TRACE $0.7M
  • HOLDERS-FOCUS 2 filers
  • CONC-DOM 100% top-5
  • PHOTO-UNK No peer
  • ACTIVITY-LIGHT 2 new
  • BOOK-MID 5Q history

Read with: Ownership concentration guide - PULMONX CORP's top-five holders account for 100% of reported value — read concentration before treating any single filer as a signal.

Institutional ownership over time

The number of institutions reporting a PULMONX CORP position has held steady from 2 to 2 over the last 5 quarters of 13F filings.

0.511.522.5 Q3'24Q4'24Q1'25Q2'25Q3'25 2
Distinct 13F filers holding PULMONX CORP, by quarter

Top Institutional Holders

# Institution Shares Value Share of reported
1 JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) 405,400 $657K 98.8%
2 CIBC Private Wealth Group LLC 5,000 $8K 1.2%

Investment Discretion

SEC Form 13F requires each institutional filer to report whether it exercises sole or shared discretion over a position. Among PULMONX CORP's reported holders for Q3 2025, by reported value:

Shared-defined discretion (DFND)
98.8%
Sole discretion (SOLE)
1.2%

Latest Quarter Activity · Q3 2025

New positions (2)

JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) $657K
CIBC Private Wealth Group LLC $8K

Complete exits (1)

Squarepoint Ops LLC exited

Frequently Asked Questions

How many institutions hold PULMONX CORP?▼
PULMONX CORP is held by 2 institutional investors per the latest SEC Form 13F filings as of Q3 2025.
What is the total institutional value of PULMONX CORP?▼
Institutions report $665K of PULMONX CORP as of Q3 2025.
How concentrated is ownership of PULMONX CORP?▼
The top five institutional holders account for 100% of the reported institutional value in PULMONX CORP, making ownership dominated by its top few institutional owners.
Who is the largest institutional holder of PULMONX CORP?▼
JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) is the largest reported holder of PULMONX CORP with $657K across 405,400 shares as of Q3 2025.

Source: U.S. Securities and Exchange Commission (SEC) - EDGAR Form 13F-HR institutional holdings filings · Q3 2025 13F-HR discloses long US-listed equity positions of managers with $100M+ qualifying assets, filed within 45 days of period end. Short positions and most derivatives are not disclosed.

PlainFundData is rendered directly from SEC EDGAR Form 13F-HR institutional holdings filings, no number is typed in by an editor. Holder lists, concentration, and reported value on this page are aggregated live from those 13F-HR extracts. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-16.