Form
SCHEDULE 13G/A
Passive or exempt beneficial ownership filing.
VIKING GLOBAL INVESTORS LP - 31 Mar 2026 SCHEDULE 13G/A Report for STANDARD BIOTOOLS INC. Common Stock, $0.001 par value per share (LAB)
- Filing manager
- VIKING GLOBAL INVESTORS LP
- Reporting owner
- VIKING GLOBAL INVESTORS LP
- Beneficially owned shares
- 58,651,170 shares
- Large-stake signal
-
Ownership
15%Beneficial ownership of this reported class.
Shares
58,651,170 sharesShares beneficially owned as disclosed.
Event date
31 Mar 2026Date tied to the ownership event or amendment.
Accepted by SEC
15 May 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 15%
- Symbol
- LAB
- Shares outstanding
- 391,007,800 shares
- SEC form
- SCHEDULE 13G/A
- Accepted by SEC
- 15 May 2026, 17:48:36 UTC
- Event date
- 31 Mar 2026
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
4 source fields
Key filing fact
VIKING GLOBAL INVESTORS LP disclosed 15% ownership in STANDARD BIOTOOLS INC. Common Stock, $0.001 par value per share (LAB) on 31 Mar 2026.
Key facts
- VIKING GLOBAL INVESTORS LP filed SCHEDULE 13G/A for STANDARD BIOTOOLS INC. Common Stock, $0.001 par value per share (LAB).
- Disclosed ownership: 15%.
- Date of event: 31 Mar 2026.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 15 May 2026, 17:48.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (10)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| VIKING GLOBAL INVESTORS LP | 15% | 58,651,170 | 0 | 58,651,170 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of VIKING GLOBAL INVESTORS LP (1)(2) | |
| Viking Global Opportunities Parent GP LLC | 15% | 58,651,170 | 0 | 58,651,170 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Parent GP LLC (1)(2) | |
| Viking Global Opportunities GP LLC | 10% | 39,296,310 | 0 | 39,296,310 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities GP LLC (1)(2) | |
| Viking Global Opportunities Portfolio GP LLC | 10% | 39,296,310 | 0 | 39,296,310 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Portfolio GP LLC (1)(2) | |
| Viking Global Opportunities Illiquid Investments Sub-Master LP | 10% | 39,296,310 | 0 | 39,296,310 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Illiquid Investments Sub-Master LP (1)(2) | |
| Viking Global Opportunities Drawdown GP LLC | 5% | 19,354,860 | 0 | 19,354,860 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Drawdown GP LLC (1)(2) | |
| Viking Global Opportunities Drawdown Portfolio GP LLC | 5% | 19,354,860 | 0 | 19,354,860 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Drawdown Portfolio GP LLC (1)(2) | |
| Viking Global Opportunities Drawdown (Aggregator) LP | 5% | 19,354,860 | 0 | 19,354,860 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Drawdown (Aggregator) LP (1)(2) | |
| HALVORSEN OLE ANDREAS | 15% | 58,651,170 | 0 | 58,651,170 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of O. Andreas Halvorsen (1) | |
| Shabet Rose Sharon | 15% | 58,651,170 | 0 | 58,651,170 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Rose S. Shabet (2) |
CIK / CUSIP context first