Sung Lee

CIK 1793200 · EVP, Chief Financial Officer · last filed 2026-06-08

Sung Lee is an EVP, Chief Financial Officer who has filed 18 SEC Form 4 insider transactions across 4 companies since 2019. The most recent filing, for TNGX, was dated Jun 8, 2026. Across all open-market trades the lifetime net is −$2.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.0M 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

$6.01M

Companies

4

Total Filings

18

Lifetime Open-Market Net

-$2.20M

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
TNGX Director 22,870 $30.94 $707.6K $0 3 2026-06-08
CYTK EVP, Chief Financial Officer 63,221 $70.15 $4.43M -$2.14M 9 2026-05-05
VIR EVP & Chief Financial Officer 100,492 $8.61 $865.2K -$59.4K 3 2024-03-28
SANGAMO THERAPEUTICS, INC (SGMO) Delisted EVP, Chief Financial Officer 88,708 $0.18 $15.8K $0 3 2020-11-30

Recent Filings

18 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-06-08 TNGX Grant (A) +570 $0 EDGAR
2026-05-05 CYTK Sell (S) −23,906 -$1.84M EDGAR
2026-05-01 TNGX Grant (A) +12,300 $0 EDGAR
2026-03-18 CYTK Sell (S) −4,935 -$306.7K EDGAR
2026-03-17 CYTK Grant (A) +20,646 $0 EDGAR
2026-01-06 TNGX Grant (A) +10,000 $0 EDGAR
2025-12-29 CYTK Mixed +3,499 -$50.5K EDGAR
2025-12-05 CYTK Tax (F) −1,560 -$101.4K EDGAR
2025-06-03 CYTK Tax (F) −4,965 -$155.0K EDGAR
2025-03-18 CYTK Grant (A) +32,687 $0 EDGAR
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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.