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Vladimir Vexler

CIK 1759506 · Chief Scientific Officer · last filed 2023-04-04

Vladimir Vexler is a Chief Scientific Officer who has filed 18 SEC Form 4 insider transactions across 1 company since 2018. The most recent filing shows the insider had shares withheld for taxes covering $111.3K of CHRS on Apr 4, 2023. Across all open-market trades the lifetime net is −$3.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $166.4K 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

$166.4K

Companies

1

Total Filings

18

Lifetime Open-Market Net

-$3.08M

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
CHRS Chief Scientific Officer 116,361 $1.43 $166.4K -$3.08M 18 2023-04-04

Recent Filings

18 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
2023-04-04 CHRS Tax (F) −16,278 -$111.3K EDGAR
2023-01-24 CHRS Grant (A) +40,000 $0 EDGAR
2023-01-12 CHRS Tax (F) −7,204 -$72.4K EDGAR
2023-01-06 CHRS Mixed −5,437 -$53.7K EDGAR
2022-04-05 CHRS Tax (F) −3,458 -$44.4K EDGAR
2022-01-12 CHRS Tax (F) −7,733 -$110.8K EDGAR
2022-01-06 CHRS Grant (A) +40,000 $0 EDGAR
2021-04-30 CHRS Grant (A) +20,000 $0 EDGAR
2021-03-11 CHRS Mixed −11,760 -$1.04M EDGAR
2021-02-03 CHRS Grant (A) — $0 EDGAR
Showing 1–10 of 18
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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.