VIVS
VivoSim Labs, Inc.Marquee-fund ownership over time
This quarter's activity
New positions opened
None.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Citadel Advisors 2× in & out | Q1 2026 | Q2 2026 | — | +0% |
| Two Sigma Investments | Q4 2025 | Q2 2026 | — | +0% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at VivoSim Labs, INC.. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Jan 29, 2026 — the most recent Form 4 on file — not from today.
- Form 40001193125-26-029889Jan 29, 2026
- Form 40001193125-26-029888Jan 29, 2026
- Form 40001193125-26-029881Jan 29, 2026
- Form 40001193125-26-029879Jan 29, 2026
- Form 40001193125-26-029875Jan 29, 2026
- Form 40001193125-25-300907Nov 26, 2025
- Form 40001193125-25-288076Nov 19, 2025
- Form 40000950170-25-110771Aug 21, 2025
- Form 40000950170-24-094726Aug 9, 2024
- Form 40000950170-24-094725Aug 9, 2024
- Form 40000950170-24-094724Aug 9, 2024
- Form 40000950170-24-094723Aug 9, 2024
- Form 40000950170-24-094722Aug 9, 2024
- Form 40000950170-24-092719Aug 7, 2024
- Form 40000950170-23-064956Nov 17, 2023
Fundamentals
XBRL · VivoSim Labs, Inc.Annual figures sourced directly from VivoSim Labs, Inc.'s 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for VivoSim Labs, INC. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KMaterial eventApr 3, 2026
- S-1/AAMENDMENT NO. 1 TO FORM S-1Mar 31, 2026
- S-1REGISTRATION STATEMENTMar 27, 2026
- 10-QQuarterly reportFeb 11, 2026
- 8-KMaterial eventDec 18, 2025
- 10-QQuarterly reportNov 6, 2025
- DEF 14AProxy statementNov 3, 2025
- 8-KMaterial eventAug 14, 2025
- 10-QQuarterly reportAug 12, 2025
- 10-K/AAnnual report (amended)Jul 29, 2025
- 10-KAnnual reportJun 5, 2025
- 8-KMaterial eventMay 6, 2025
- 8-KMaterial eventApr 24, 2025
- 8-KMaterial eventApr 23, 2025
- 8-KMaterial eventApr 2, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Citadel Advisors | Q1 2026 | Q2 2026 | $0.00 | — | +0% |
| Two Sigma Investments | Q4 2025 | Q2 2026 | $0.00 | — | +0% |
| Citadel Advisors | Q3 2025 | Q4 2025 | $0.00 | — | +0% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.