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Derrick Sung

CIK 1670118 · COO and CFO · last filed 2025-12-03

Derrick Sung is a COO and CFO who has filed 32 SEC Form 4 insider transactions across 3 companies since 2017. The most recent filing, for LUNG, was dated Dec 3, 2025. Across all open-market trades the lifetime net is −$5.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.8M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$4.84M

Companies

3

Total Filings

32

Lifetime Open-Market Net

-$5.33M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
LUNG COO and CFO 1,335,319 $1.25 $1.67M -$1.08M 15 2025-12-03
MINERVA SURGICAL INC (UTRS) Delisted Director 4,348 $0.00 $0 $0 1 2022-08-09
IRTC EVP, Strat Corp Development 26,983 $117.37 $3.17M -$4.25M 15 2019-03-18

Recent Filings

32 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2025-12-03 LUNG Grant (A) +1,200,000 $0 EDGAR
2024-01-31 LUNG Notice (144) −25,000 -$350.0K EDGAR
2023-09-06 LUNG Sell (S) −4,219 -$42.2K EDGAR
2023-06-02 LUNG Sell (S) −4,222 -$48.5K EDGAR
2023-03-03 LUNG Mixed +136,736 -$13.9K EDGAR
2022-12-05 LUNG Sell (S) −1,069 -$6.3K EDGAR
2022-11-14 LUNG Exer (M) +10,000 $22.0K EDGAR
2022-09-06 LUNG Sell (S) −1,082 -$19.3K EDGAR
2022-08-09 MINERVA SURGICAL INC (UTRS) Delisted Grant (A) +86,956 $200.0K EDGAR
2022-06-03 LUNG Sell (S) −1,065 -$19.2K EDGAR
Showing 1–10 of 32
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.