Vinayak Doraiswamy

CIK 1862458 · Chief Scientific Officer · last filed 2026-07-02

Vinayak Doraiswamy is a Chief Scientific Officer who has filed 23 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing, for ATRC, was dated Jul 28, 2026. Across all open-market trades the lifetime net is −$1.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.7M 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.

Disclosed Exposure

$3.72M

Companies

1

Total Filings

23

Lifetime Open-Market Net

-$1.33M

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
ATRC	Chief Scientific Officer	92,511	$40.24	$3.72M	-$1.33M	18	2026-07-02

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
2026-07-28	ATRC	Notice (144)	−6,000	-$233.3K	EDGAR
2026-07-02	ATRC	Grant (A)	+636	$15.1K	EDGAR
2026-05-18	ATRC	Sell (S)	−5,000	-$140.7K	EDGAR
2026-05-15	ATRC	Notice (144)	−5,000	-$140.7K	EDGAR
2026-03-16	ATRC	Sell (S)	−5,000	-$149.2K	EDGAR
2026-03-12	ATRC	Notice (144)	−5,000	-$149.2K	EDGAR
2026-03-03	ATRC	Mixed	+30,003	-$487.2K	EDGAR
2025-08-07	ATRC	Sell (S)	−2,500	-$91.5K	EDGAR
2025-08-05	ATRC	Notice (144)	−2,500	-$91.4K	EDGAR
2025-07-02	ATRC	Grant (A)	+822	$21.2K	EDGAR

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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.