Williamson Steven S.

Director · Officer · LUNG

As of 2026-09-16, Williamson Steven S. has 7 Form 4 transactions on record across 1 company — 0 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $700KIndirect: $0$700Kas of 2026-09-16
  • Direct $700K
  • Indirect $0
LUNGdirect358,967 sh$700K

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

LUNG · 7 trades
2025-09-02: Sale, 5,118 sh ($8K)2025-09-02: Sale, 4,530 sh ($7K)2025-06-02: Sale, 5,262 sh ($16K)2025-06-02: Sale, 4,661 sh ($15K)2025-03-03: Sale, 27,689 sh ($198K)2025-03-03: Award / grant, 181,696 sh ($0)2025-03-03: Award / grant, 128,395 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-09-02LUNGSale5,118 @ $1.60$8K−1.4% of holding363,497Form 4
2025-09-02LUNGSale4,530 @ $1.60$7K−1.2% of holding358,967Form 4
2025-06-02LUNGSale5,262 @ $3.13$16K−1.4% of holding370,776Form 4
2025-06-02LUNGSale4,661 @ $3.13$15K−1.3% of holding366,115Form 4
2025-03-03LUNGSale27,689 @ $7.14$198K−12.5% of holding194,342Form 4
2 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2025-03-03LUNGAward / grant181,696376,038Form 4
2025-03-03LUNGAward / grant128,395128,395Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.