풀몽스 주식회사
US ˙ NasdaqGS ˙ US7458481014

SecurityLUNG / Pulmonx Corporation
InstitutionXTX Topco Ltd
Latest Disclosed Ownership80,081 shares
Latest Disclosed Value $ 103,304
XTX Topco Ltd reports 28.02% decrease in ownership of LUNG / Pulmonx Corporation

On May 15, 2026 - XTX Topco Ltd filed a 13F-HR form disclosing ownership of 80,081 shares of Pulmonx Corporation (US:LUNG) valued at $103,304 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 111,247 shares of Pulmonx Corporation. This represents a change in shares of -28.02% during the quarter. The current value of the position is $122,524 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F PULMONX COM 745848101 80,081 -31,166 -28.02 103 -57.96 0.0018
2026-02-17 2025-12-31 13F PULMONX COM 745848101 111,247 -61,933 -35.76 246 -12.50 0.0065
2025-11-14 2025-09-30 13F PULMONX COM 745848101 173,180 115,538 200.44 281 87.92 0.0146
2025-08-12 2025-06-30 13F PULMONX COM 745848101 57,642 57,642 149 0.0062
2025-05-08 2025-03-31 13F PULMONX COM 745848101 0 -21,555 -100.00 0 -100.00
2025-02-13 2024-12-31 13F PULMONX COM 745848101 21,555 21,555 146 0.0120
2024-11-14 2024-09-30 13F PULMONX COM 745848101 0 -34,968 -100.00 0 -100.00
2024-08-12 2024-06-30 13F PULMONX COM 745848101 34,968 34,968 222 0.0190
2024-05-13 2024-03-31 13F PULMONX COM 745848101 0 -23,641 -100.00 0 -100.00
2024-02-13 2023-12-31 13F PULMONX COM 745848101 23,641 23,641 301 0.0660
2021-11-12 2021-09-30 13F PULMONX COM 745848101 0 -6,208 -100.00 0 -100.00
2021-08-12 2021-06-30 13F PULMONX COM 745848101 6,208 6,208 274 0.0923
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.