Doraiswamy Vinayak

Officer · ATRC

As of 2026-09-16, Doraiswamy Vinayak has 13 Form 4 transactions on record across 1 company — 7 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Pattern in the record: open-market sales filed in May in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $4.9MIndirect: $0$4.9Mas of 2026-09-16
  • Direct $4.9M
  • Indirect $0
ATRCdirect86,511 sh$4.9M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

ATRC · 13 trades
2026-07-28: Sale, 6,000 sh ($233K)2026-06-30: Award / grant, 636 sh ($15K)2026-05-15: Sale, 5,000 sh ($141K)2026-03-12: Sale, 5,000 sh ($149K)2026-03-01: Withheld for tax, 15,585 sh ($487K)2026-03-01: Award / grant, 30,390 sh ($0)2026-03-01: Award / grant, 15,198 sh ($0)2025-08-05: Sale, 2,500 sh ($91K)2025-06-30: Award / grant, 822 sh ($21K)2025-05-28: Sale, 2,500 sh ($84K)2025-03-01: Withheld for tax, 9,672 sh ($375K)2025-03-01: Award / grant, 19,359 sh ($0)2025-03-01: Award / grant, 6,579 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-07-28ATRCSale6,000 @ $38.88$233K−6.5% of holding86,511Form 4
2026-05-15ATRCSale5,000 @ $28.13$141K−5.2% of holding91,875Form 4
2026-03-12ATRCSale5,000 @ $29.83$149K−4.9% of holding96,875Form 4
2025-08-05ATRCSale2,500 @ $36.58$91K−3.4% of holding71,872Form 4
2025-05-28ATRCSale2,500 @ $33.44$84K−3.3% of holding73,550Form 4
8 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-30ATRCAward / grant63692,511Form 4
2026-03-01ATRCWithheld for tax15,585101,875Form 4
2026-03-01ATRCAward / grant30,390102,262Form 4
2026-03-01ATRCAward / grant15,198117,460Form 4
2025-06-30ATRCAward / grant82274,372Form 4
2025-03-01ATRCWithheld for tax9,67276,050Form 4
2025-03-01ATRCAward / grant19,35979,143Form 4
2025-03-01ATRCAward / grant6,57985,722Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.