Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in LAB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Casdin Capital, LLC | 88.8M | $81.6M | 0.0% | 22.744% | 6.18% |
| 2 | VIKING GLOBAL INVESTORS LP | 58.7M | $53.9M | 0.0% | 15.025% | 0.15% |
| 3 | MAK CAPITAL ONE LLC | 26.2M | $24.1M | +35.7% | 6.705% | 3.55% |
| 4 | BlackRock, Inc. | 24.8M | $22.8M | -3.0% | 6.342% | 0.00% |
| 5 | Long Focus Capital Management, LLC | 16.0M | $14.7M | +26.3% | 4.103% | 0.41% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 12.8M | $11.8M | β | 3.283% | 0.00% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 7.3M | $6.7M | -1.8% | 1.867% | 0.00% |
| 8 | STATE STREET CORP | 6.6M | $6.0M | +1.1% | 1.680% | 0.00% |
| 9 | Hollow Brook Wealth Management LLC | 5.7M | $5.2M | +1.8% | 1.448% | 1.33% |
| 10 | Neuberger Berman Group LLC | 4.7M | $4.3M | +0.7% | 1.193% | 0.00% |
| 11 | Tikvah Management LLC | 3.6M | $3.3M | 0.0% | 0.910% | 1.01% |
| 12 | ROYCE & ASSOCIATES LP | 3.0M | $2.8M | +4.2% | 0.770% | 0.03% |
| 13 | MORGAN STANLEY | 2.9M | $2.7M | -62.5% | 0.740% | 0.00% |
| 14 | BARCLAYS PLC | 2.6M | $2.4M | -15.0% | 0.671% | 0.00% |
| 15 | NORTHERN TRUST CORP | 2.5M | $2.3M | +2.7% | 0.629% | 0.00% |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.4M | $2.2M | -3.7% | 0.619% | 0.00% |
| 17 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.4M | $2.2M | β | 0.613% | 0.00% |
| 18 | MILLENNIUM MANAGEMENT LLC | 2.1M | $1.9M | -38.0% | 0.538% | 0.00% |
| 19 | Peapod Lane Capital LLC | 2.0M | $1.9M | β | 0.520% | 1.53% |
| 20 | VANGUARD FIDUCIARY TRUST CO | 1.9M | $1.8M | β | 0.491% | 0.00% |
| 21 | Sone Capital Management, LLC | 1.8M | $1.6M | β | 0.453% | 0.14% |
| 22 | Slate Path Capital LP | 1.6M | $1.5M | 0.0% | 0.414% | 0.02% |
| 23 | CITADEL ADVISORS LLC | 1.3M | $1.2M | +15.9% | 0.325% | 0.00% |
| 24 | GOLDMAN SACHS GROUP INC | 943K | $867K | +79.3% | 0.242% | 0.00% |
| 25 | AQR CAPITAL MANAGEMENT LLC | 933K | $858K | +122.4% | 0.239% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in LAB β a direct measure of their conviction.
Filings activity in LAB during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new LAB position in Q1 2026
Institutions that fully closed their LAB position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 152 | 3.2% | 78.65% | 32.89 pp | $273M | 29% |
| Q4 2025 | 157 | +2.6% | 111.54% | +4.51 pp | $387M | +4.2% |
| Q3 2025 | 153 | 3.8% | 107.03% | +13.18 pp | $371M | +14% |
| Q2 2025 | 159 | +7.4% | 93.85% | +7.49 pp | $325M | +8.7% |
| Q1 2025 | 148 | +5.7% | 86.36% | 110.34 pp | $299M | 56% |
| Q4 2024 | 140 | +2.2% | 196.70% | +43.11 pp | $682M | +28% |
| Q3 2024 | 137 | 2.8% | 153.59% | +17.91 pp | $532M | +13% |
| Q2 2024 | 141 | β | 135.68% | β | $470M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying LAB stock.
Based on Q1 2026 13F filings, institutional ownership of Standard BioTools Inc. stands at 78.6%, held across 152 reporting institutions.
Casdin Capital, LLC is the largest reported institutional holder of LAB, with approximately 88,783,856 shares worth $0.08B as of Q1 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of LAB, including VIKING GLOBAL INVESTORS LP, MILLENNIUM MANAGEMENT LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for LAB is 46 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
26 institutions opened new positions in LAB during Q1 2026, while 31 fully exited. 27 added to existing positions and 97 trimmed.
LAB institutional ownership fell by 32.89 percentage points quarter-over-quarter, with a net change of -5 holders.
The top 10 institutions account for 84.8% of all reported 13F value in LAB, and the top 25 account for 95.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Standard BioTools Inc. (LAB) Institutional Ownership