Wednesday, October 28, 2026
Data from SEC filings, checked daily
Public filings, plainly told
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StockCIK 1497253

VivoSim Labs, INC. (VIVS): Insider Trades and Fund Holdings

In the past 12 months, VivoSim Labs, INC. insiders reported 1 open-market purchase worth $3K and 0 sales worth $0.

1Insider buys, 12 months
$3KBought by insiders, 12 months
$0Sold by insiders, 12 months
1Tracked funds holding

Timeline: news and trades

Company filings (8-K), insider trades, notices of planned sales (Form 144) and fund moves in the past year, newest first.

  1. Oct 16, 2026NewsCompany reported: Signed a material agreement
  2. Oct 6, 2026NewsCompany reported: Executive or director change
  3. Aug 31, 2026Insider buyChief Commercial Officer Tony Serge Lialin bought $2,804 (10 days after: delisting notice or listing rule issue)
  4. Aug 21, 2026NewsCompany reported: Delisting notice or listing rule issue
  5. Jun 30, 2026FundRenaissance Technologies opened a position in Q2 2026 (13F filed Aug 13, 2026)

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 1, 2026.

Recent VIVS insider trades
FiledTradedInsiderRoleTypeSharesPrice ($)ValueHoldingFiling
Sep 1Aug 31Tony Serge LialinChief Commercial OfficerChief Commercial Officer▲ BUY10,0000.2804$3KNewForm 4 ↗
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

InsiderRoleBuysBoughtSellsSoldLatest
Tony Serge LialinChief Commercial Officer1$3K0$0Sep 1, 2026

Buybacks and executive pay

YearCEO pay reportedCEO pay "actually paid"Value of $100 invested
2025$866K$780Kn/a
2024$1.17M$888Kn/a
2023$681K$596Kn/a

From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.

Tracked funds that report VIVS

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

FundQuarterSharesValue% of portfolioChange
Renaissance TechnologiesQ2 202618,500$20K0.00%▲ New
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →