Labcorp Holdings Inc.
US ˙ NYSE

SecurityLH / Labcorp Holdings Inc.
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership214 shares
Latest Disclosed Value $ 57,097
Simplex Trading, Llc ownership in LH / Labcorp Holdings Inc.

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 214 shares of Labcorp Holdings Inc. (US:LH) valued at $57,097 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 3,642 shares of Labcorp Holdings Inc.. This represents a change in shares of -94.12% during the quarter. The current value of the position is $55,409 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (LH) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

LH / Labcorp Holdings Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F LABCORP HOLDINGS COM 504922105 214 -3,428 -94.12 57 -93.76 0.0000
2026-02-11 2025-12-31 13F LABCORP HOLDINGS COM 504922105 3,642 714 24.39 914 0.0005
2025-11-12 2025-09-30 13F LABCORP HOLDINGS COM 504922105 2,928 -878 -23.07 1 0.0004
2025-08-05 2025-06-30 13F LABCORP HOLDINGS COM 504922105 3,806 3,806 1 0.0006
2024-11-08 2024-09-30 13F LABCORP HOLDINGS COM 504922105 0 -3,426 -100.00 0 0.0000
2024-07-25 2024-06-30 13F LABCORP HOLDINGS COM 504922105 3,426 3,426 1 0.0004
Disclosed Call Options
File
Date		 Effective
Date		Form Security Class ID Opt Avg Share
Price		 Shares ΔShares
(%)		 Value
(x1000)		 ΔValue
(%)		 Prior Allocation
(%)		 Allocation
(%)		 ΔAllocation
(%)		 Cost Basis
(x1000)		 Profit
(x1000)		 Return
(%)
2024-07-25 2024-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-04-25 2024-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 13,900 -21.02 3 50.00 n/a n/a n/a
2024-02-02 2023-12-31 13F LABORATORY CORP AMER HLDGS CALL Call 17,600 60.00 3 100.00 n/a n/a n/a
2023-11-01 2023-09-30 13F LABORATORY CORP AMER HLDGS CALL Call 11,000 -60.29 1 -83.33 n/a n/a n/a
2023-08-04 2023-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 27,700 -17.80 7 -14.29 n/a n/a n/a
2023-04-27 2023-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 33,700 155.30 8 133.33 n/a n/a n/a
2023-02-02 2022-12-31 13F LABORATORY CORP AMER HLDGS CALL Call 13,200 -9.59 3 -99.90 n/a n/a n/a
2022-11-04 2022-09-30 13F LABORATORY CORP AMER HLDGS CALL Call 14,600 108.57 2,990 82.32 n/a n/a n/a
2022-08-03 2022-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 7,000 -4.11 1,640 -14.76 n/a n/a n/a
2022-05-02 2022-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 7,300 -17.05 1,924 -30.42 n/a n/a n/a
2022-02-23 2021-12-31 13F/A LABORATORY CORP AMER HLDGS CALL Call 8,800 -74.79 2,765 -71.50 n/a n/a n/a
2022-02-04 2021-12-31 13F LABORATORY CORP AMER HLDGS CALL Call 34,900 9,701 n/a n/a n/a
2021-10-28 2021-09-30 13F LABORATORY CORP AMER HLDGS CALL Call 34,900 0.00 9,701 0.77 n/a n/a n/a
2021-08-12 2021-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 34,900 18,663.44 9,627 102.97 n/a n/a n/a
2021-04-26 2021-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 186 -14.29 4,743 7.38 n/a n/a n/a
2021-02-02 2020-12-31 13F LABORATORY CORP AMER HLDGS CALL Call 217 43.71 4,417 55.42 n/a n/a n/a
2020-10-14 2020-09-30 13F LABORATORY CORP AMER HLDGS CALL Call 151 -65.99 2,842 -61.46 n/a n/a n/a
2020-07-13 2020-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 444 138.71 7,375 213.83 n/a n/a n/a
2020-04-29 2020-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 186 -8.82 2,350 -31.90 n/a n/a n/a
2020-02-05 2019-12-31 13F LABORATORY CORP AMER HLDGS CALL Call 204 172.00 3,451 173.89 n/a n/a n/a
2019-10-15 2019-09-30 13F LABORATORY CORP AMER HLDGS CALL Call 75 -68.09 1,260 -68.99 n/a n/a n/a
2019-07-26 2019-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 235 3.07 4,063 16.52 n/a n/a n/a
2019-04-18 2019-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 228 55.10 3,487 87.78 n/a n/a n/a
2019-01-16 2018-12-31 13F LABORATORY CORP AMER HLDGS CALL Call 147 3.52 1,857 -24.70 n/a n/a n/a
2018-10-23 2018-09-30 13F LABORATORY CORP AMER HLDGS CALL Call 142 -20.22 2,466 -22.82 n/a n/a n/a
2018-07-30 2018-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 178 535.71 3,195 15,875.00 n/a n/a n/a
2018-04-26 2018-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 28 -51.72 20 -75.00 n/a n/a n/a
2018-01-10 2017-12-31 13F LABORATORY CORP AMER HLDGS CALL Call 58 -67.78 80 -9.09 n/a n/a n/a
2017-10-25 2017-09-30 13F LABORATORY CORP AMER HLDGS CALL Call 180 38.46 88 69.23 n/a n/a n/a
2017-07-12 2017-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 130 -0.76 52 20.93 n/a n/a n/a
2017-04-21 2017-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 131 52.33 43 86.96 n/a n/a n/a
2017-01-11 2016-12-31 13F LABORATORY CORP AMER HLDGS CALL Call 86 40.98 23 21.05 n/a n/a n/a
2016-10-07 2016-09-30 13F LABORATORY CORP AMER HLDGS CALL Call 61 -58.50 19 -55.81 n/a n/a n/a
2016-07-18 2016-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 147 -16.00 43 79.17 n/a n/a n/a
2016-04-14 2016-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 175 400.00 24 242.86 n/a n/a n/a
2016-01-20 2015-12-31 13F LABORATORY CORP AMER HLDGS CALL Call 35 34.62 7 250.00 n/a n/a n/a
2015-10-08 2015-09-30 13F LABORATORY CORP AMER HLDGS CALL Call 26 2,500.00 2 -71.43 n/a n/a n/a
2015-07-08 2015-06-30 13F LABORATORY CORP AMER HLDGS CALL Call 1 -97.78 0 -100.00 n/a n/a n/a
2015-04-21 2015-03-31 13F LABORATORY CORP AMER HLDGS CALL Call 45 7.14 79 229.17 n/a n/a n/a
2015-03-04 2014-12-31 13F LABORATORY CALL Call 42 24 n/a n/a n/a
Disclosed Put Options
File
Date		 Effective
Date		Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)		 Value
(x1000)		 ΔValue
(%)		 Prior Allocation
(%)		 Allocation
(%)		 ΔAllocation
(%)		 Cost Basis
(x1000)		 Profit
(x1000)		 Return
(%)
2024-07-25 2024-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-04-25 2024-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 29,900 -52.31 7 500.00 n/a n/a n/a
2024-02-02 2023-12-31 13F LABORATORY CORP AMER HLDGS PUT Put 62,700 -39.30 2 0.00 n/a n/a n/a
2023-11-01 2023-09-30 13F LABORATORY CORP AMER HLDGS PUT Put 103,300 5.95 1 -95.65 n/a n/a n/a
2023-08-04 2023-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 97,500 1,134.18 24 2,200.00 n/a n/a n/a
2023-04-27 2023-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 7,900 -15.96 2 -50.00 n/a n/a n/a
2023-02-02 2022-12-31 13F LABORATORY CORP AMER HLDGS PUT Put 9,400 20.51 2 -99.87 n/a n/a n/a
2022-11-04 2022-09-30 13F LABORATORY CORP AMER HLDGS PUT Put 7,800 -73.01 1,597 -76.42 n/a n/a n/a
2022-08-03 2022-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 28,900 36.32 6,773 21.18 n/a n/a n/a
2022-05-02 2022-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 21,200 182.67 5,589 137.22 n/a n/a n/a
2022-02-23 2021-12-31 13F/A LABORATORY CORP AMER HLDGS PUT Put 7,500 -43.61 2,356 -36.27 n/a n/a n/a
2022-02-04 2021-12-31 13F LABORATORY CORP AMER HLDGS PUT Put 13,300 3,697 n/a n/a n/a
2021-10-28 2021-09-30 13F LABORATORY CORP AMER HLDGS PUT Put 13,300 0.00 3,697 0.79 n/a n/a n/a
2021-08-12 2021-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 13,300 5,115.69 3,668 -43.60 n/a n/a n/a
2021-04-26 2021-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 255 810.71 6,503 1,042.88 n/a n/a n/a
2021-02-02 2020-12-31 13F LABORATORY CORP AMER HLDGS PUT Put 28 -56.92 569 -53.48 n/a n/a n/a
2020-10-14 2020-09-30 13F LABORATORY CORP AMER HLDGS PUT Put 65 -13.33 1,223 -1.77 n/a n/a n/a
2020-07-13 2020-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 75 -77.20 1,245 -70.06 n/a n/a n/a
2020-04-29 2020-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 329 2.49 4,158 -23.43 n/a n/a n/a
2020-02-05 2019-12-31 13F LABORATORY CORP AMER HLDGS PUT Put 321 3,912.50 5,430 3,952.24 n/a n/a n/a
2019-10-15 2019-09-30 13F LABORATORY CORP AMER HLDGS PUT Put 8 -96.02 134 -96.14 n/a n/a n/a
2019-07-26 2019-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 201 -48.98 3,475 -42.34 n/a n/a n/a
2019-04-18 2019-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 394 6,466.67 6,027 7,936.00 n/a n/a n/a
2019-01-16 2018-12-31 13F LABORATORY CORP AMER HLDGS PUT Put 6 -88.89 75 -92.00 n/a n/a n/a
2018-10-23 2018-09-30 13F LABORATORY CORP AMER HLDGS PUT Put 54 -25.00 937 -27.48 n/a n/a n/a
2018-07-30 2018-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 72 35.85 1,292 9,838.46 n/a n/a n/a
2018-04-26 2018-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 53 -71.20 13 -48.00 n/a n/a n/a
2018-01-10 2017-12-31 13F LABORATORY CORP AMER HLDGS PUT Put 184 178.79 25 -21.87 n/a n/a n/a
2017-10-25 2017-09-30 13F LABORATORY CORP AMER HLDGS PUT Put 66 6,500.00 32 28.00 n/a n/a n/a
2017-07-12 2017-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 1 -99.19 0 -100.00 n/a n/a n/a
2017-04-21 2017-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 124 313.33 18 157.14 n/a n/a n/a
2017-01-11 2016-12-31 13F LABORATORY CORP AMER HLDGS PUT Put 30 -56.52 7 -58.82 n/a n/a n/a
2016-10-07 2016-09-30 13F LABORATORY CORP AMER HLDGS PUT Put 69 6.15 17 325.00 n/a n/a n/a
2016-07-18 2016-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 65 -20.73 4 -88.57 n/a n/a n/a
2016-04-14 2016-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 82 10.81 35 150.00 n/a n/a n/a
2016-01-20 2015-12-31 13F LABORATORY CORP AMER HLDGS PUT Put 74 362.50 14 133.33 n/a n/a n/a
2015-10-08 2015-09-30 13F LABORATORY CORP AMER HLDGS PUT Put 16 -56.76 6 -45.45 n/a n/a n/a
2015-07-08 2015-06-30 13F LABORATORY CORP AMER HLDGS PUT Put 37 12.12 11 83.33 n/a n/a n/a
2015-04-21 2015-03-31 13F LABORATORY CORP AMER HLDGS PUT Put 33 -54.79 0 -100.00 n/a n/a n/a
2015-03-04 2014-12-31 13F LABORATORY PUT Put 73 9 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.