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Winston Kung

CIK 1666963 · Chief Financial Officer · last filed 2026-06-12

Winston Kung is a Chief Financial Officer who has filed 23 SEC Form 4 insider transactions across 4 companies since 2020. The most recent filing, for JANX, was dated Jun 12, 2026. Across all open-market trades the lifetime net is −$623.8K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $298.2K 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

$298.2K

Companies

4

Total Filings

23

Lifetime Open-Market Net

-$623.8K

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
JANX Director 11,750 $15.00 $176.2K $0 5 2026-06-12
CRBP Director 12,140 $9.09 $110.3K -$16.0K 4 2026-06-11
AVBP Chief Financial Officer — $29.98 — $0 2 2026-02-04
PMVP COO, CFO 10,600 $1.10 $11.7K -$607.8K 12 2023-05-15

Recent Filings

23 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
2026-06-12 JANX Grant (A) +5,500 $0 EDGAR
2026-06-11 CRBP Sell (S) −2,026 -$16.0K EDGAR
2026-05-21 CRBP Grant (A) +3,800 $0 EDGAR
2026-02-04 AVBP Grant (A) — $0 EDGAR
2025-06-13 JANX Grant (A) +3,750 $0 EDGAR
2025-06-02 CRBP Grant (A) +4,800 $0 EDGAR
2025-02-14 AVBP Grant (A) — $0 EDGAR
2024-08-20 CRBP Grant (A) +5,566 $0 EDGAR
2024-06-28 JANX Grant (A) +2,500 $0 EDGAR
2023-06-16 JANX Grant (A) — $0 EDGAR
Showing 1–10 of 23
Page 1 of 3
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.