Feeds › Ownership stakes (13D / 13G)
Ownership stakes (13D / 13G)
Investors who own more than 5% of a company, from activists (13D) to passive holders (13G).
About this data
- What it is
- An investor who owns more than 5% of a public company must say so. Investors who may try to influence the company, such as activists, file the longer Schedule 13D; passive holders file the shorter Schedule 13G.
- Who files it
- The investor, within days of crossing 5%, and again whenever the stake changes materially.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- 13G filings are far more common than 13D. A 13D usually means the investor intends to push for changes, so it tends to get more attention.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Filings per day, last 30 days
13D (activist) 13G (passive)
Latest ownership filings
Showing: ticker LAB
| Filed | ScheduleBoth report a stake of more than 5%. A 13D is filed by investors who may try to influence the company, such as activists; a 13G by passive holders. | Company | Investor | Shares | % of shares | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Michael A. Kaufman | 28.81M | 7.3% | SCHEDULE 13G/A ↗ |
| Aug 14, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | MAK Capital Fund LP | 28.81M | 7.3% | SCHEDULE 13G/A ↗ |
| Aug 14, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Mak Capital One LLC | 28.81M | 7.3% | SCHEDULE 13G/A ↗ |
| Aug 14, 2026 | SCHEDULE 13G | LAB Standard BioTools Inc. | John Helmers | 23.50M | 6.0% | SCHEDULE 13G ↗ |
| Aug 14, 2026 | SCHEDULE 13G | LAB Standard BioTools Inc. | Long Focus Capital Management, LLC | 23.50M | 6.0% | SCHEDULE 13G ↗ |
| Jul 30, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | BlackRock, Inc. | 7.91M | 2.0% | SCHEDULE 13G/A ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Rose Sharon Shabet | 58.65M | 15.0% | SCHEDULE 13D ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Halvorsen Ole Andreas | 58.65M | 15.0% | SCHEDULE 13D ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Viking Global Opportunities Drawdown (Aggregator) LP | 19.35M | 5.0% | SCHEDULE 13D ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Viking Global Opportunities Drawdown Portfolio GP LLC | 19.35M | 5.0% | SCHEDULE 13D ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Viking Global Opportunities Drawdown GP LLC | 19.35M | 5.0% | SCHEDULE 13D ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Viking Global Opportunities Illiquid Investments Sub-Master LP | 39.30M | 10.1% | SCHEDULE 13D ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Viking Global Opportunities Portfolio GP LLC | 39.30M | 10.1% | SCHEDULE 13D ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Viking Global Opportunities GP LLC | 39.30M | 10.1% | SCHEDULE 13D ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Viking Global Opportunities Parent GP LLC | 58.65M | 15.0% | SCHEDULE 13D ↗ |
| Jun 12, 2026 | SCHEDULE 13D | LAB Standard BioTools Inc. | Viking Global Investors LP | 58.65M | 15.0% | SCHEDULE 13D ↗ |
| Jun 9, 2026 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Eli Casdin | 93.85M | 23.9% | SCHEDULE 13D/A ↗ |
| Jun 9, 2026 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Partners GP, LLC | 72.10M | 18.5% | SCHEDULE 13D/A ↗ |
| Jun 9, 2026 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Partners Master Fund, L.P. | 72.10M | 18.5% | SCHEDULE 13D/A ↗ |
| Jun 9, 2026 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Private Growth Equity Fund II GP, LLC | 13.94M | 3.6% | SCHEDULE 13D/A ↗ |
| Jun 9, 2026 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Private Growth Equity Fund II, L.P. | 13.94M | 3.6% | SCHEDULE 13D/A ↗ |
| Jun 9, 2026 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Capital, LLC | 88.78M | 22.7% | SCHEDULE 13D/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Michael A. Kaufman | 26.17M | 6.7% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | MAK Capital One L.L.C. | 26.17M | 6.7% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | MAK Capital Fund LP | 26.17M | 6.7% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Rose Sharon Shabet | 58.65M | 15.0% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Halvorsen Ole Andreas | 58.65M | 15.0% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Viking Global Opportunities Drawdown (Aggregator) LP | 19.35M | 5.0% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Viking Global Opportunities Drawdown Portfolio GP LLC | 19.35M | 5.0% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Viking Global Opportunities Drawdown GP LLC | 19.35M | 5.0% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Viking Global Opportunities Illiquid Investments Sub-Master LP | 39.30M | 10.1% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Viking Global Opportunities Portfolio GP LLC | 39.30M | 10.1% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Viking Global Opportunities GP LLC | 39.30M | 10.1% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Viking Global Opportunities Parent GP LLC | 58.65M | 15.0% | SCHEDULE 13G/A ↗ |
| May 15, 2026 | SCHEDULE 13G/A (amended) | LAB Standard BioTools Inc. | Viking Global Investors LP | 58.65M | 15.0% | SCHEDULE 13G/A ↗ |
| Jan 7, 2026 | SCHEDULE 13G | LAB Standard BioTools Inc. | Michael A. Kaufman | 19.97M | 5.2% | SCHEDULE 13G ↗ |
| Jan 7, 2026 | SCHEDULE 13G | LAB Standard BioTools Inc. | MAK Capital One L.L.C. | 19.97M | 5.2% | SCHEDULE 13G ↗ |
| Jan 7, 2026 | SCHEDULE 13G | LAB Standard BioTools Inc. | MAK Capital Fund LP | 19.97M | 5.2% | SCHEDULE 13G ↗ |
| Nov 28, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Eli Casdin | 93.44M | 24.2% | SCHEDULE 13D/A ↗ |
| Nov 28, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Partners GP, LLC | 71.75M | 18.7% | SCHEDULE 13D/A ↗ |
| Nov 28, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Partners Master Fund, L.P. | 71.75M | 18.7% | SCHEDULE 13D/A ↗ |
| Nov 28, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Private Growth Equity Fund II GP, LLC | 13.94M | 3.6% | SCHEDULE 13D/A ↗ |
| Nov 28, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Private Growth Equity Fund II, L.P. | 13.94M | 3.6% | SCHEDULE 13D/A ↗ |
| Nov 28, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Capital, LLC | 88.43M | 22.9% | SCHEDULE 13D/A ↗ |
| Mar 4, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Eli Casdin | 80.86M | 21.6% | SCHEDULE 13D/A ↗ |
| Mar 4, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Partners GP, LLC | 59.39M | 15.9% | SCHEDULE 13D/A ↗ |
| Mar 4, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Partners Master Fund, L.P. | 59.39M | 15.9% | SCHEDULE 13D/A ↗ |
| Mar 4, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Private Growth Equity Fund II GP, LLC | 13.94M | 3.7% | SCHEDULE 13D/A ↗ |
| Mar 4, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Private Growth Equity Fund II, L.P. | 13.94M | 3.7% | SCHEDULE 13D/A ↗ |
| Mar 4, 2025 | SCHEDULE 13D/A (amended) | LAB Standard BioTools Inc. | Casdin Capital, LLC | 76.08M | 20.4% | SCHEDULE 13D/A ↗ |
50 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 4:34 PM EST.
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