CONMED Corporation
US ˙ NYSE ˙ US2074101013

SecurityCNMD / CONMED Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership981,035 shares
Latest Disclosed Value $ 39,829,903
Sei Investments Co ownership in CNMD / CONMED Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 981,035 shares of CONMED Corporation (US:CNMD) valued at $39,830,021 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 963,789 shares of CONMED Corporation. This represents a change in shares of 1.79% during the quarter. The current value of the position is $32,433,017 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (CNMD) in the form of stock options.

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.

CNMD / CONMED Corporation 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)
2026-02-13 2025-12-31 13F CONMED COM 207410101 981,035 17,246 1.79 39,830 -12.13 0.0393
2025-11-13 2025-09-30 13F CONMED COM 207410101 963,789 8,044 0.84 45,327 -8.94 0.0487
2025-08-14 2025-06-30 13F CONMED COM 207410101 955,745 23,782 2.55 49,775 -11.56 0.0577
2025-05-14 2025-03-31 13F/A-1 CONMED COM 207410101 931,963 1,537 0.17 56,281 -11.62 0.0724
2025-05-13 2025-03-31 13F CONMED COM 207410101 931,898 1,472 63,724 0.0693
2025-02-11 2024-12-31 13F CONMED COM 207410101 930,426 59,703 6.86 63,678 1.69 0.0818
2024-11-12 2024-09-30 13F CONMED COM 207410101 870,723 -17,328 -1.95 62,622 1.73 0.0813
2024-08-13 2024-06-30 13F CONMED COM 207410101 888,051 269,853 43.65 61,560 24.35 0.0872
2024-05-07 2024-03-31 13F CONMED COM 207410101 618,198 7,521 1.23 49,505 -25.97 0.0725
2024-02-14 2023-12-31 13F CONMED COM 207410101 610,677 139,903 29.72 66,876 40.86 0.1074
2023-11-14 2023-09-30 13F CONMED COM 207410101 470,774 63,835 15.69 47,478 -14.14 0.0853
2023-08-11 2023-06-30 13F CONMED COM 207410101 406,939 -39,566 -8.86 55,299 19.24 0.0965
2023-05-12 2023-03-31 13F CONMED COM 207410101 446,505 38,002 9.30 46,374 28.07 0.0861
2023-02-10 2022-12-31 13F CONMED COM 207410101 408,503 69,793 20.61 36,210 33.35 0.0805
2022-11-14 2022-09-30 13F CONMED COM 207410101 338,710 170,104 100.89 27,154 68.23 0.0606
2022-08-15 2022-06-30 13F CONMED COM 207410101 168,606 140,153 492.58 16,141 280.33 0.0349
2022-05-13 2022-03-31 13F CONMED COM 207410101 28,453 6,530 29.79 4,244 36.55 0.0085
2022-02-14 2021-12-31 13F CONMED COM 207410101 21,923 1,867 9.31 3,108 18.67 0.0058
2021-11-12 2021-09-30 13F CONMED COM 207410101 20,056 -5,142 -20.41 2,619 -24.37 0.0055
2021-08-06 2021-06-30 13F CONMED COM 207410101 25,198 -2,383 -8.64 3,463 -3.86 0.0077
2021-05-12 2021-03-31 13F CONMED COM 207410101 27,581 3,995 16.94 3,602 36.34 0.0091
2021-02-08 2020-12-31 13F CONMED COM 207410101 23,586 20,501 664.54 2,642 987.24 0.0068
2020-12-04 2020-09-30 13F/A-1 CONMED COM 207410101 3,085 -16,577 -84.31 243 -88.94 0.0007
2020-11-06 2020-09-30 13F CONMED COM 207410101 3,085 -16,577 243 585.0900
2020-08-11 2020-06-30 13F CONMED COM 207410101 19,662 19,662 2,198 0.0069
2020-05-14 2020-03-31 13F CONMED COM 207410101 0 -27,653 -100.00 0 -100.00
2020-02-06 2019-12-31 13F CONMED COM 207410101 27,653 -3,888 -12.33 3,093 2.01 0.0092
2019-11-12 2019-09-30 13F CONMED COM 207410101 31,541 14,220 82.10 3,032 104.18 0.0078
2019-08-14 2019-06-30 13F CONMED COM 207410101 17,321 -779 -4.30 1,485 -1.39 0.0049
2019-05-15 2019-03-31 13F CONMED COM 207410101 18,100 4,293 31.09 1,506 37.66 0.0051
2019-02-13 2018-12-31 13F CONMED COM 207410101 13,807 0 0.00 1,094 0.00 0.0039
2018-11-08 2018-09-30 13F CONMED COM 207410101 13,807 -2,199 -13.74 1,094 -6.66 0.0040
2018-08-03 2018-06-30 13F CONMED COM 207410101 16,006 15,872 11,844.78 1,172 14,550.00 0.0040
2018-05-11 2018-03-31 13F CONMED COM 207410101 134 134 8 0.0000
2017-11-06 2017-09-30 13F CONMED COM 207410101 0 -1 -100.00 0 0.0000
2017-07-31 2017-06-30 13F CONMED COM 207410101 1 1 0 0.0000
2016-05-10 2016-03-31 13F/A-1 CONMED COM 207410101 0 -53,686 -100.00 0 -100.00
2016-02-03 2015-12-31 13F CONMED COM 207410101 53,686 3,734 7.48 2,365 -0.84 0.0144
2015-11-02 2015-09-30 13F/A-1 CONMED COM 207410101 49,952 2,952 6.28 2,385 -12.92 0.0219
2015-10-30 2015-09-30 13F CONMED COM 207410101 49,952 2,385
2015-08-07 2015-06-30 13F/A-1 CONMED COM 207410101 47,000 -32,000 -40.51 2,739 -31.34 0.0248
2015-08-04 2015-06-30 13F CONMED COM 207410101 47,000 -32,000 2,739 0.0248
2015-05-14 2015-03-31 13F/A-1 CONMED COM 207410101 79,000 56,700 254.26 3,989 297.71 0.0346
2015-05-01 2015-03-31 13F CONCHO RES PUT 207410101 79,000 79,000 3,989 0.0346
2015-02-10 2014-12-31 13F CONMED COM 207410101 22,300 22,300 1,003 0.0089
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
(%)
2015-05-01 2015-03-31 13F CONCHO RES PUT 79,000 3,989 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.