Laboratory Corporation of America Holdings (LH) Ownership

NYSE: LHTop holders, insider trades and short interest.

LH ownership summary

as of October 17, 2026
Institutions
101.6%
of shares outstanding
Insiders
0.35%
of shares outstanding
Shares outstanding
81.1M
Float
80.7M
shares available to trade
Short interest
3.32%
2.7M shares short
Days to cover
3.27
short interest up 27.6% vs prior month
  • Institutions 101.62%
  • Insiders 0.35%

LH top institutional holders

20 largest
Laboratory Corporation of America Holdings top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc8.11%6.6M$2.09B+129,405 (+2.0%)June 30, 2026
2Vanguard Capital Management, LLC6.61%5.4M$1.70B−13,866 (−0.3%)June 30, 2026
3Victory Capital Management Inc.5.96%4.8M$1.54B+210,447 (+4.5%)June 30, 2026
4State Street Corp4.82%3.9M$1.24B+44,485 (+1.2%)June 30, 2026
5Vanguard Portfolio Management, LLC4.54%3.7M$1.17B−1,863 (−0.1%)June 30, 2026
6Boston Partners Global Investors, Inc3.76%3.1M$970.3M+682,894 (+28.8%)June 30, 2026
7Allspring Global Investments Holdings, LLC2.76%2.2M$711.2M+10,511 (+0.5%)June 30, 2026
8Geode Capital Management, LLC2.70%2.2M$696.0M+2,948 (+0.1%)June 30, 2026
9Select Equity Group LP2.44%2.0M$630.2M−192,837 (−8.9%)June 30, 2026
10FMR Inc2.35%1.9M$605.7M+616,459 (+47.8%)June 30, 2026
11Morgan Stanley - Brokerage Accounts1.98%1.6M$511.7M+111,420 (+7.4%)June 30, 2026
12Dimensional Fund Advisors, Inc.1.69%1.4M$434.7M+34,391 (+2.6%)June 30, 2026
13JPMorgan Chase & Co1.56%1.3M$403.3M−264,339 (−17.2%)June 30, 2026
14Amvescap Plc.1.53%1.2M$393.5M−78,521 (−6.0%)June 30, 2026
15Nordea Investment Mgmt Bank Demark A/s1.13%916K$291.2M−129,203 (−12.4%)June 30, 2026
16UBS Asset Mgmt Americas Inc1.09%887K$282.2M−12,771 (−1.4%)June 30, 2026
17Northern Trust Corp1.09%883K$280.8M−114,334 (−11.5%)June 30, 2026
18Wellington Management Company LLP1.05%856K$272.0M−103,543 (−10.8%)June 30, 2026
19American Century Companies Inc1.04%845K$268.7M+34,218 (+4.2%)June 30, 2026
20Bank of America Corp1.00%812K$258.3M+87,459 (+12.1%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 11 holders added 2.0M shares and 9 cut 911K.

LH top mutual fund and ETF holders

20 largest
Laboratory Corporation of America Holdings top fund holders
#Holder% of sharesSharesValueChangeReported
1Vanguard MStar Total Stk Mkt Idx Invest3.21%2.6M$828.6M−5,576 (−0.2%)August 31, 2026
2Vanguard 500 Index Investor2.69%2.2M$692.7M+26,026 (+1.2%)August 31, 2026
3Vanguard MStar Mid Cap Index Instl2.19%1.8M$563.9M−949 (−0.1%)August 31, 2026
4Allspring Special Mid Cap Value Inst1.80%1.5M$465.0M—September 30, 2026
5Victory Sycamore Established Value R1.78%1.4M$459.4M+10,000 (+0.7%)June 30, 2026
6Victory Pioneer A1.36%1.1M$349.9M−54,596 (−4.7%)August 31, 2026
7iShares Core S&P 500 ETF1.33%1.1M$343.6M−1,739 (−0.2%)September 30, 2026
8Fidelity 500 Index1.31%1.1M$338.4M+4,085 (+0.4%)August 31, 2026
9State Street® SPDR® S&P 500® ETF1.22%990K$314.9M—September 30, 2026
10Amundi Fds US Pioneer A USD C1.07%864K$274.9M−36,852 (−4.1%)August 31, 2026
11Vanguard MStar Value Index Investor0.97%783K$249.0M+1,874 (+0.2%)August 31, 2026
12Fidelity Low-Priced Stock0.84%684K$217.6M+51,200 (+8.1%)July 31, 2026
13Vanguard Windsor II Inv0.77%622K$197.9M—June 30, 2026
14Invesco S&P 500® Equal Weight ETF0.75%609K$193.7M−1,235 (−0.2%)September 30, 2026
15Hartford Dividend and Growth Y0.75%607K$192.9M−3,904 (−0.6%)August 31, 2026
16JHancock Disciplined Value Mid Cap I0.72%580K$184.5M−8,906 (−1.5%)August 31, 2026
17State Street®HlthCrSelSectSPDR®ETF0.71%575K$182.9M+1,792 (+0.3%)September 30, 2026
18Strategic Advisers Fidelity US TtlStk0.69%563K$178.9M+67,126 (+13.5%)August 31, 2026
19Vanguard MStar Mid Cap Value ETF0.65%531K$168.8M+2,985 (+0.6%)August 31, 2026
20Robeco BP Global Premium Eqs B EUR0.56%455K$144.7M−48,863 (−9.7%)August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

LH insider transactions

latest 20
Laboratory Corporation of America Holdings insider transactions
DateNameTransactionPriceSharesValue
2026-03-03Adam H SchechterSell$279.968,705$2.4M
2026-02-27Der Vaart Sandra D VanSell$284.91548$156,131
2026-02-24Brian J CaveneySell$286.311,500$429,465
2026-02-12Jonathan C MeltzerSell$290.4287$25,267
2026-02-11Adam H SchechterSell$284.385,273$1.5M
2026-02-11April McClain DelaneyBuy$289.95——
2026-02-04April McClain DelaneyBuy$276.19——
2026-01-29Ro KhannaSell$269.64——
2026-01-28April McClain DelaneyBuy$268.07——
2026-01-12Ro KhannaSell$250.26——
2025-11-17April McClain DelaneyBuy$261.35——
2025-11-11Adam H SchechterSell$262.755,745$1.5M
2025-10-31Richelle P ParhamSell$254.287,009$1.8M
2025-10-31April McClain DelaneyBuy$254.23——
2025-10-29April McClain DelaneyBuy$248.32——
2025-10-27Ro KhannaSell$275.54——
2025-08-13Der Vaart Sandra D VanSell$271.423,903$1.1M
2025-08-11Adam H SchechterSell$266.785,643$1.5M
2025-07-30Dwight Gary GillilandSell$264.952,000$529,900
2025-07-24Kerrii B AndersonSell$280.003,500$980,000

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

LH shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns LH

Institutional investors own 101.6% of Labcorp's shares and insiders 0.35%. The largest holder is BlackRock Inc with 8.11% of the shares (6.6M), as of June 30, 2026. Among the top 20 institutions, 11 added shares and 9 reduced their stake in the latest filings. Short interest is 3.32% of the float, or 3.27 days of average trading volume. The share count fell 3.6% since 2014.

Related: LH analyst forecast, LH key metrics, LH dividend history. See the LH stock overview for the latest quote and news.

LH ownership FAQ

Who owns the most Labcorp stock?

The largest shareholders of Labcorp are BlackRock Inc (8.11%), Vanguard Capital Management, LLC (6.61%), Victory Capital Management Inc. (5.96%), State Street Corp (4.82%), Vanguard Portfolio Management, LLC (4.54%).

What percentage of Labcorp is owned by institutions?

Institutions hold 101.6% of Labcorp's shares outstanding; insiders hold 0.35%.

Which funds own Labcorp?

The largest fund holders of Labcorp are Vanguard MStar Total Stk Mkt Idx Invest (3.21%), Vanguard 500 Index Investor (2.69%), Vanguard MStar Mid Cap Index Instl (2.19%), Allspring Special Mid Cap Value Inst (1.80%), Victory Sycamore Established Value R (1.78%).

What is Labcorp's short interest?

2.7M shares of Labcorp were sold short, 3.32% of the float; at the average daily volume it would take 3.27 days to cover.

Are insiders buying or selling Labcorp?

Of the latest 20 reported insider transactions in Labcorp (since July 24, 2025), 6 were purchases and 14 were sales.

How many shares of Labcorp are outstanding?

Labcorp has 81.1M shares outstanding, of which 80.7M are in the public float.

Diagnostics & Research: ownership