StockData
LABNasdaqPharmaceutical PreparationsFiscal year ends December 31

STANDARD BIOTOOLS INC.

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 5, 2026
$0.64+0.01 (+2.27%)

Close on Oct 19, 2026

Market cap
$251.45M
P/E (TTM)
2.9
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
75.4%
296M of 393M shares
Institutional holders
143
42 new, 51 sold out
Net institutional buying
-1M
In Q2 2026
Insider trades, 12 months
15 buys · 0 sales
Net bought $14.41M

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
Eli Casdin93,845,77823.90%13D (active) amendmentJun 6, 2026
Shabet Rose Sharon58,651,17015.00%13D (active)Jun 6, 2026
Viking Global Investors LP58,651,17015.00%13G (passive) amendmentMar 31, 2026
Kaufman Michael A28,813,9047.30%13G (passive) amendmentJun 30, 2026
MAK Capital Fund LP26,172,6266.70%13G (passive) amendmentMar 31, 2026
John Helmers23,500,0006.00%13G (passive)Jun 30, 2026

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of LABValueChange% of portfolio
Casdin Capital, LLC88,783,85622.62%$73.04M–3.66%
Viking Global Investors LP58,651,17014.94%$48.25M–0.14%
Mak Capital One LLC28,813,9047.34%$23.71M+2,641,2783.32%
Long Focus Capital Management, LLC23,500,0005.99%$19.33M+7,484,2790.49%
Vanguard Capital Management LLC12,252,9983.12%$10.08M−563,0720.00%
BlackRock, Inc.8,254,4432.10%$6.79M−16,501,6410.00%
Hollow Brook Wealth Management LLC5,503,3811.40%$4.53M−150,0000.90%
Neuberger Berman Group LLC4,958,6201.26%$4.04M+301,0350.00%
Qube Research & Technologies Ltd4,820,4631.23%$3.97M+4,116,0560.00%
Royce & Associates LP4,525,3331.15%$3.72M+1,519,8040.03%
Geode Capital Management, LLC3,896,5740.99%$3.21M−3,392,7620.00%
Tikvah Management LLC3,551,0580.90%$2.92M−940.89%
Millennium Management LLC3,512,6650.89%$2.89M+1,410,6500.00%
Morgan Stanley2,831,6680.72%$2.33M−55,4780.00%
D. E. Shaw & Co., Inc.2,818,0260.72%$2.32M+2,618,9420.00%
Jane Street Group, LLC2,514,2990.64%$2.07MNew0.00%
Peapod Lane Capital LLC2,411,4740.61%$1.98M+382,9471.34%
Citadel Advisors LLC2,348,5700.60%$1.93M+1,123,2600.00%
Mink Brook Asset Management LLC2,190,9730.56%$1.80MNew0.80%
Sone Capital Management, LLC2,133,6310.54%$1.76M+366,8500.13%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 2026143296M75.4%42 / 4736 / 5140M41M
Q1 2026156297M75.7%26 / 5046 / 2436M24M
Q4 2025159303M77.1%22 / 4652 / 1424M7M
Q3 2025155286M72.8%13 / 5243 / 1717M12M
Q2 2025160281M71.6%29 / 4646 / 1211M15M
Q1 2025145285M72.6%22 / 4042 / 1623M15M
Q4 2024142278M70.9%22 / 4541 / 2114M17M
Q3 2024141281M71.7%21 / 4045 / 2248M16M
Q2 2024145271M69.1%36 / 3836 / 3442M51M
Q1 2024145281M71.6%72 / 4812 / 13239M10M
Q4 20238653M13.4%24 / 2717 / 98M3M
Q3 20237247M12.1%15 / 1619 / 96M4M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of LABValue% of fundAs of
Vanguard Total Stock Market Index Fund8,433,8422.15%$6.94M0.00%Jun 30, 2026
Vanguard Extended Market Index Fund3,420,2850.87%$2.81M0.00%Jun 30, 2026
iShares Biotechnology ETF2,648,8250.67%$2.18M0.02%Jun 30, 2026
Vanguard Russell 2000 Index Fund1,480,0140.38%$1.70M0.01%May 31, 2026
Schwab U.S. Small-Cap ETF1,428,2800.36%$1.64M0.01%May 31, 2026
Fidelity Extended Market Index Fund1,256,1290.32%$1.44M0.00%May 31, 2026
Royce Micro-Cap Fund1,247,9080.32%$1.03M0.24%Jun 30, 2026
Neuberger Intrinsic Value Fund1,036,3440.26%$1.19M0.08%May 31, 2026
Vanguard Health Care Index Fund741,2440.19%$852.43K0.00%May 31, 2026
Inception Portfolio654,8660.17%$538.76K0.19%Jun 30, 2026
Fidelity Total Market Index Fund546,3900.14%$628.35K0.00%May 31, 2026
EQ/Morgan Stanley Small Cap Growth Portfolio503,5090.13%$414.24K0.09%Jun 30, 2026
Fidelity Series Total Market Index Fund460,2150.12%$529.25K0.00%May 31, 2026
Royce Capital Fund - Micro-Cap Portfolio406,3720.10%$334.32K0.24%Jun 30, 2026
iShares Core S&P Total U.S. Stock Market ETF333,9180.09%$274.71K0.00%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Michael EgholmPresident & CEO, Director6,137,7041.56%Aug 24, 2026
Sean MackaySVP & Chief Business Officer1,480,8230.38%Aug 24, 2026
Hanjoon Alex KimChief Financial Officer2,534,8590.65%Aug 24, 2026
Troy CoxDirector475,7020.12%Jun 23, 2026
Kathy L. HibbsDirector236,8360.06%Jun 23, 2026
Frank WitneyDirector314,2030.08%Jun 23, 2026
Eli CasdinDirector, 10% owner91,837,02523.39%Jun 23, 2026
Fenel M. EloiDirector335,2990.09%Jun 23, 2026
Thomas D. CareyDirector344,4560.09%Jun 23, 2026
Casdin Private Growth Equity Fund II GP, LLCDirector11,496,2552.93%Dec 4, 2025
Casdin Partners GP, LLCDirector, 10% owner77,395,28119.71%Dec 4, 2025
Casdin Private Growth Equity Fund, L.P.Director59,551,47215.17%Dec 4, 2025
Casdin Private Growth Equity Fund Gp, LlcDirector77,745,28119.80%Dec 4, 2025
Casdin Private Growth Equity Fund II, L.P.Director57,301,47214.60%Dec 4, 2025
Casdin Partners Master Fund, L.P.Director, 10% owner82,559,91821.03%Dec 4, 2025
Casdin Capital, LLCDirector, 10% owner61,653,25015.70%Dec 4, 2025
Casdin Amplify Fund, LPDirector58,551,47214.91%Mar 4, 2025

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Hanjoon Alex Kim
Chief Financial Officer
Aug 20, 2026Tax withholding−28,195$0.67$18.89K2,534,859
Michael Egholm
President & CEO, Director
Aug 20, 2026Tax withholding−97,627$0.67$65.41K6,137,704
Sean Mackay
SVP & Chief Business Officer
Aug 20, 2026Tax withholding−25,729$0.67$17.24K1,480,823
Michael Egholm
President & CEO, Director
Aug 3, 2026Tax withholding−362,625$0.87$315.48K6,235,331
Hanjoon Alex Kim
Chief Financial Officer
Jul 23, 2026Tax withholding−202,476$0.90$182.23K2,563,054
Sean Mackay
SVP & Chief Business Officer
Jun 20, 2026Award+500,000––1,506,552
Eli Casdin
Director, 10% owner
Jun 18, 2026Award+99,116––3,053,169
Troy Cox
Director
Jun 18, 2026Award+99,116––475,702
Thomas D. Carey
Director
Jun 18, 2026Award+99,116––344,456
Fenel M. Eloi
Director
Jun 18, 2026Award+99,116––335,299
Frank Witney
Director
Jun 18, 2026Award+99,116––309,978
Kathy L. Hibbs
Director
Jun 18, 2026Award+99,116––236,836
Michael Egholm
President & CEO, Director
May 20, 2026Tax withholding−97,626$1.00$97.63K6,597,956
Sean Mackay
SVP & Chief Business Officer
May 20, 2026Tax withholding−25,729$1.00$25.73K1,006,552
Hanjoon Alex Kim
Chief Financial Officer
May 20, 2026Tax withholding−18,871$1.00$18.87K2,760,530
Michael Egholm
President & CEO, Director
Apr 6, 2026Tax withholding−95,014$0.91$86.46K6,695,582
Michael Egholm
President & CEO, Director
Apr 6, 2026Option exercise+196,513––6,790,596
Hanjoon Alex Kim
Chief Financial Officer
Apr 6, 2026Option exercise+70,183––2,800,702
Hanjoon Alex Kim
Chief Financial Officer
Apr 6, 2026Tax withholding−21,301$0.91$19.38K2,779,401
Michael Egholm
President & CEO, Director
Mar 20, 2026Award+1,042,373––6,594,083
Hanjoon Alex Kim
Chief Financial Officer
Mar 20, 2026Award+323,173––2,730,519
Sean Mackay
SVP & Chief Business Officer
Mar 20, 2026Award+272,107––1,032,281
Troy Cox
Director
Feb 26, 2026Award+57,264$1.17$67.00K376,586
Eli Casdin
Director, 10% owner
Feb 26, 2026Award+52,991$1.17$62.00K2,954,053
Thomas D. Carey
Director
Feb 26, 2026Award+51,282$1.17$60.00K245,340
Hanjoon Alex Kim
Chief Financial Officer
Feb 23, 2026Tax withholding−12,740$1.15$14.65K2,407,346
Sean Mackay
SVP & Chief Business Officer
Feb 23, 2026Tax withholding−19,661$1.15$22.61K760,174
Michael Egholm
President & CEO, Director
Feb 23, 2026Tax withholding−66,127$1.15$76.05K5,551,710
Casdin Private Growth Equity Fund Gp, Llc
Director
Dec 4, 2025Buy+150,000$1.45$217.50K72,100,000
Casdin Private Growth Equity Fund Gp, Llc
Director
Dec 3, 2025Buy+75,000$1.44$108.00K71,950,000
Casdin Private Growth Equity Fund Gp, Llc
Director
Dec 2, 2025Buy+125,000$1.42$177.50K71,875,000
Casdin Partners GP, LLC
Director, 10% owner
Nov 25, 2025Buy+7,550,000$1.30$9.82M71,750,000
Casdin Partners GP, LLC
Director, 10% owner
Nov 24, 2025Buy+150,000$1.43$214.50K64,200,000
Hanjoon Alex Kim
Chief Financial Officer
Nov 20, 2025Tax withholding−12,739$1.28$16.31K2,415,086
Sean Mackay
SVP & Chief Business Officer
Nov 20, 2025Tax withholding−19,661$1.28$25.17K779,835
Michael Egholm
President & CEO, Director
Nov 20, 2025Tax withholding−63,529$1.28$81.32K5,617,837
Eli Casdin
Director, 10% owner
Nov 20, 2025Buy+450,000$1.30$585.00K64,050,000
Eli Casdin
Director, 10% owner
Nov 19, 2025Buy+350,000$1.28$448.00K63,600,000
Eli Casdin
Director, 10% owner
Nov 18, 2025Buy+275,000$1.23$338.25K63,250,000
Casdin Partners Master Fund, L.P.
Director, 10% owner
Nov 17, 2025Buy+225,000$1.22$274.50K62,975,000
Casdin Partners Master Fund, L.P.
Director, 10% owner
Nov 14, 2025Buy+250,000$1.24$310.00K62,750,000
Casdin Partners Master Fund, L.P.
Director, 10% owner
Nov 13, 2025Buy+450,000$1.20$540.00K62,500,000
Casdin Partners GP, LLC
Director, 10% owner
Nov 12, 2025Buy+375,000$1.19$446.25K62,050,000
Casdin Partners GP, LLC
Director, 10% owner
Nov 11, 2025Buy+300,000$1.20$360.00K61,675,000
Casdin Partners GP, LLC
Director, 10% owner
Nov 10, 2025Buy+275,000$1.17$321.75K61,375,000
Casdin Partners GP, LLC
Director, 10% owner
Nov 7, 2025Buy+225,000$1.12$252.00K61,100,000
Casdin Partners Master Fund, L.P.
Director, 10% owner
Sep 9, 2025Buy+100,000$1.29$129.00K60,875,000
Eli Casdin
Director, 10% owner
Sep 4, 2025Buy+250,000$1.28$320.00K60,775,000
Eli Casdin
Director, 10% owner
Sep 3, 2025Buy+250,000$1.27$317.50K60,525,000
Casdin Partners Master Fund, L.P.
Director, 10% owner
Aug 26, 2025Buy+125,000$1.26$157.50K60,275,000
Casdin Partners Master Fund, L.P.
Director, 10% owner
Aug 25, 2025Buy+200,000$1.24$248.00K60,150,000
Casdin Partners Master Fund, L.P.
Director, 10% owner
Aug 22, 2025Buy+200,000$1.26$252.00K59,950,000
Sean Mackay
SVP & Chief Business Officer
Aug 20, 2025Tax withholding−19,661$1.27$24.97K799,496
Hanjoon Alex Kim
Chief Financial Officer
Aug 20, 2025Tax withholding−12,739$1.27$16.18K2,427,825
Michael Egholm
President & CEO, Director
Aug 20, 2025Tax withholding−54,919$1.27$69.75K5,681,366
Eli Casdin
Director, 10% owner
Aug 15, 2025Buy+150,000$1.22$183.00K59,750,000
Eli Casdin
Director, 10% owner
Aug 14, 2025Buy+133,220$1.21$161.20K59,600,000
Eli Casdin
Director, 10% owner
Aug 13, 2025Buy+75,000$1.31$98.25K59,466,780
Hanjoon Alex Kim
Chief Financial Officer
Aug 1, 2025Award+1,500,000––2,440,564
Michael Egholm
President & CEO, Director
Aug 1, 2025Award+3,000,000––5,736,285

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.

Planned insider sales

Notices of proposed sale filed on Form 144 before shares are sold

SellerFiledSharesMarket valuePlanned saleAcquired through
Hanjoon Alex Kim
Officer
May 23, 20251,428$1.34KMay 23, 2025Restricted Stock Vesting
Michael Egholm
Officer, Director
May 23, 20255,473$5.15KMay 23, 2025Restricted Stock Vesting
Sean Mackay
Officer
May 23, 202513,217$12.44KMay 23, 2025Restricted Stock Vesting
Michael Egholm
Officer, Director
May 22, 20255,116$5.13KMay 22, 2025Restricted Stock Vesting
Hanjoon Alex Kim
Officer
May 22, 20251,355$1.36KMay 22, 2025Restricted Stock Vesting
Sean Mackay
Officer
May 22, 202512,536$12.56KMay 22, 2025Restricted Stock Vesting
Sean Mackay
Officer
May 21, 202512,838$13.24KMay 21, 2025Restricted Stock Vesting
Michael Egholm
Officer, Director
May 21, 20254,719$4.87KMay 21, 2025Restricted Stock Vesting
Hanjoon Alex Kim
Officer
May 21, 20251,407$1.45KMay 21, 2025Restricted Stock Vesting
Jeffrey G. Black
Former Officer
Nov 12, 202457,971$123.10KNov 12, 2024Restricted Stock Vesting
Adam Taich
Former Officer
Sep 9, 202445,851$91.72KSep 9, 2024Restricted Stock Vesting
Alison Marie Roelke
Officer
Jun 24, 202464,158$121.57KJun 24, 2024Restricted Stock Vesting
Ruben Gutierrez
Officer
Jun 24, 202455,918$105.95KJun 24, 2024Restricted Stock Vesting
Alison Marie Roelke
Officer
Jun 24, 2024146$263Jun 24, 2024Restricted Stock Vesting
Ruben Gutierrez
Officer
Apr 4, 20242,388$6.63KApr 4, 2024Restricted Stock Vesting