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LAB

STANDARD BIOTOOLS (LAB) stock: insider trades, news & valuation

Strong buying
Close · Oct 9, 2026 $0.69 +3.0% on the day -49.3% over 12 months 52-week range $0.64 – $1.68

Share price and insider trades

LAB closeInsider buyInsider sale
0.501.001.502.00NovDecJan 2026FebMarAprMayJunJulAugSepOctBought $108,000 on 2025-12-03 · Casdin Private Growth Equity Fund Gp, LlcBought $177,500 on 2025-12-02 · Casdin Private Growth Equity Fund Gp, LlcBought $214,500 on 2025-11-24 · Casdin Partners Gp, LlcBought $217,500 on 2025-12-04 · Casdin Private Growth Equity Fund Gp, LlcBought $252,000 on 2025-11-07 · Casdin Partners Gp, LlcBought $274,500 on 2025-11-17 · Casdin Partners Master Fund, L.P.Bought $310,000 on 2025-11-14 · Casdin Partners Master Fund, L.P.Bought $321,750 on 2025-11-10 · Casdin Partners Gp, LlcBought $338,250 on 2025-11-18 · Eli CasdinBought $360,000 on 2025-11-11 · Casdin Partners Gp, LlcBought $446,250 on 2025-11-12 · Casdin Partners Gp, LlcBought $448,000 on 2025-11-19 · Eli CasdinBought $540,000 on 2025-11-13 · Casdin Partners Master Fund, L.P.Bought $585,000 on 2025-11-20 · Eli CasdinBought $9,815,000 on 2025-11-25 · Casdin Partners Gp, Llc
Bought, 12 months$14.4M
Sold, 12 months$0
Insiders buying4
Insiders selling0

STANDARD BIOTOOLS insider trading at a glance (Oct 9, 2026): in the past 12 months, 4 insiders bought $14.4M and 0 sold $0 of LAB stock on the open market, including a cluster buy that began Nov 7, 2025.

LAB insider buying and selling by quarter

Open-market purchases (green, above the line) and sales (red, below), by trade date.

Q4 2025: $14.4M bought (15 trades)$14.4MQ4 2025Q1 2026Q2 2026Q3 2026Q4 2026
QuarterBoughtPurchasesSoldSales
Q4 2026—0—0
Q3 2026—0—0
Q2 2026—0—0
Q1 2026—0—0
Q4 2025$14.4M15—0

Valuation, profit and volume

P/E (trailing)n/aSector median —
Market value— 
Profit margin—Revenue growth —
Volume vs. 50-day0.9×Last 5 sessions
Insiders' paper profit−$6.7MOn all tracked purchases -46.2%

Summary

Over the past 12 months, 4 STANDARD BIOTOOLS INC. insiders reported open-market purchases totaling $14.4M, while 0 insiders reported sales totaling $0. The most recent cluster buy began on Nov 7, 2025, when 3 insiders bought a combined $3.9M. Among insiders with enough purchase history to measure, Casdin Partners Master Fund, L.P. (Director) has the highest Insider Score at 87.

Insider transactions

Open-market purchases and sales.

Filed Insider Type Shares Price Value Since Score
Dec 4SEC Casdin Private Growth Equity Fund Gp, LlcDirector Buy 150,00072,100,000 held (+0%) $1.45 $218K -52.4% —
Dec 4SEC Casdin Private Growth Equity Fund Gp, LlcDirector Buy 125,00071,875,000 held (+0%) $1.42 $178K -51.4% —
Dec 4SEC Casdin Private Growth Equity Fund Gp, LlcDirector Buy 75,00071,950,000 held (+0%) $1.44 $108K -52.1% —
Nov 26SEC Casdin Partners Gp, LlcDirector Buy 7,550,00071,750,000 held (+12%) $1.30 $9.8M -46.9% 36
Nov 26SEC Casdin Partners Gp, LlcDirector Buy 150,00064,200,000 held (+0%) $1.43 $214K -51.7% 36
Nov 20SEC Eli CasdinDirector Buy 450,00064,050,000 held (+1%) $1.30 $585K -46.9% 82
Nov 20SEC Eli CasdinDirector Buy 350,00063,600,000 held (+1%) $1.28 $448K -46.1% 82
Nov 20SEC Eli CasdinDirector Buy 275,00063,250,000 held (+0%) $1.23 $338K -43.9% 82
Nov 17SEC Casdin Partners Master Fund, L.P.Director Buy 450,00062,500,000 held (+1%) $1.20 $540K -42.5% 87
Nov 17SEC Casdin Partners Master Fund, L.P.Director Buy 250,00062,750,000 held (+0%) $1.24 $310K -44.4% 87
Nov 17SEC Casdin Partners Master Fund, L.P.Director Buy 225,00062,975,000 held (+0%) $1.22 $274K -43.4% 87
Nov 12SEC Casdin Partners Gp, LlcDirector Buy 375,00062,050,000 held (+1%) $1.19 $446K -42.0% 36
Nov 12SEC Casdin Partners Gp, LlcDirector Buy 300,00061,675,000 held (+0%) $1.20 $360K -42.5% 36
Nov 12SEC Casdin Partners Gp, LlcDirector Buy 275,00061,375,000 held (+0%) $1.17 $322K -41.0% 36
Nov 12SEC Casdin Partners Gp, LlcDirector Buy 225,00061,100,000 held (+0%) $1.12 $252K -38.4% 36

Insiders at STANDARD BIOTOOLS INC.

InsiderBoughtSoldLast filingScore
Casdin Partners Gp, LlcDirector $11.4M — Nov 26, 2025 36
Eli CasdinDirector $1.4M — Nov 20, 2025 82
Casdin Partners Master Fund, L.P.Director $1.1M — Nov 17, 2025 87
Casdin Private Growth Equity Fund Gp, LlcDirector $503K — Dec 4, 2025 —

LAB stock: common questions

Are STANDARD BIOTOOLS INC. insiders buying LAB stock?

In the past 12 months, 4 insiders reported open-market purchases of LAB worth $14.4M. The latest was Director Casdin Private Growth Equity Fund Gp, Llc bought $218K of LAB at $1.45 — largest purchase by this insider in our records.

Are STANDARD BIOTOOLS INC. insiders selling LAB stock?

0 insiders reported sales worth $0 over the same period.

Where does this data come from?

Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.

What is LAB's 52-week range?

Over the past year LAB has traded between $0.64 and $1.68. It last closed at $0.69 on Oct 9, 2026.