CONMED Corporation
US ˙ NYSE ˙ US2074101013

Introduction

This page provides a comprehensive analysis of the known insider trading history of Kim Kelderman. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Kim Kelderman has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:CNMD / CONMED Corporation Director 0
US:TECH / Bio-Techne Corporation Chief Executive Officer, Director 50,968
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Kim Kelderman. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases CNMD / CONMED Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in CNMD / CONMED Corporation. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

CNMD / CONMED Corporation Insider Trades
Insider Sales CNMD / CONMED Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in CNMD / CONMED Corporation. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

CNMD / CONMED Corporation Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Kim Kelderman as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2025-09-09 3 CNMD CONMED Corp
Common Stock
0
2025-08-19 2025-08-15 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -4,305 50,968 -7.79 53.60 -230,748 2,731,885
2025-08-19 2025-08-15 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 8,543 55,273 18.28
2025-07-24 2025-07-22 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -43,649 46,730 -48.30 53.12 -2,318,635 2,482,298
2025-07-24 2025-07-22 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 48,176 90,379 114.15 44.33 2,135,642 4,006,501
2025-07-17 2025-07-15 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -32,933 42,203 -43.83 51.42 -1,693,415 2,170,078
2025-07-17 2025-07-15 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 36,132 75,136 92.64 44.33 1,601,732 3,330,779
2025-01-29 2025-01-27 4 TECH BIO-TECHNE Corp
Common Stock
S - Sale -1,661 39,004 -4.08 77.95 -129,480 3,040,479
2025-01-29 2025-01-27 4 TECH BIO-TECHNE Corp
Common Stock
S - Sale -11,731 40,665 -22.39 77.19 -905,533 3,138,992
2025-01-29 2025-01-27 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 13,392 52,396 34.33 37.70 504,878 1,975,329
2024-11-05 2024-11-01 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -2,430 39,004 -5.86 75.31 -183,003 2,937,391
2024-09-03 2024-08-29 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 1,492 41,434 3.74 66.97 99,919 2,774,835
2024-08-02 2024-07-31 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -9,479 39,942 -19.18 81.97 -776,994 3,274,046
2024-08-02 2024-07-31 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 14,000 49,421 39.52 37.70 527,800 1,863,172
2023-11-03 2023-11-01 4 TECH BIO-TECHNE Corp
Common Stock
A - Award 14,196 35,421 66.88
2023-08-28 2023-08-24 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 2,100 21,225 10.98 47.60 99,960 1,010,310
2023-08-08 2023-08-05 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -4,139 19,125 -17.79 82.17 -340,102 1,571,501
2023-08-08 2023-08-05 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 8,060 23,264 53.01
2022-08-25 2022-08-23 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 663 3,801 21.13 150.78 99,967 573,115
2022-08-09 2022-08-07 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -1,214 3,138 -27.90 382.97 -464,926 1,201,760
2022-08-09 2022-08-07 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 2,363 4,352 118.80
2022-02-10 2022-02-08 4 TECH BIO-TECHNE Corp
Stock Option (Right to Buy)
M - Exercise -1,989 7,511 -20.94
2022-02-10 2022-02-08 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 1,989 1,989 150.78 299,901 299,901
2021-11-23 2021-11-19 4 TECH BIO-TECHNE Corp
Stock Option (Right to Buy)
M - Exercise -500 2,152 -18.85
2021-11-23 2021-11-19 4 TECH BIO-TECHNE Corp
Common Stock
S - Sale -400 0 -100.00 505.78 -202,313
2021-11-23 2021-11-19 4 TECH BIO-TECHNE Corp
Common Stock
S - Sale -100 400 -20.00 503.76 -50,376 201,504
2021-11-23 2021-11-19 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 500 500 150.78 75,390 75,390
2021-09-24 2021-09-22 4 TECH BIO-TECHNE Corp
Common Stock
S - Sale X -822 0 -100.00 529.04 -434,871
2021-08-10 2021-08-08 4 TECH BIO-TECHNE Corp
Restricted Stock Units
M - Exercise -1,691 0 -100.00
2021-08-10 2021-08-08 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -869 822 -51.39 481.82 -418,702 396,056
2021-08-10 2021-08-08 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 1,691 1,691
2021-08-10 2021-08-06 4 TECH BIO-TECHNE Corp
Stock Options (Right to Buy)
A - Award 6,486 6,486
2021-08-10 2021-08-06 4 TECH BIO-TECHNE Corp
Stock Options (Right to Buy)
A - Award 4,864 4,864
2021-08-10 2021-08-06 4 TECH BIO-TECHNE Corp
Restricted Stock Units
A - Award 1,245 1,245
2021-06-11 2021-06-09 4 TECH BIO-TECHNE Corp
Common Stock
S - Sale -811 0 -100.00 433.00 -351,163
2021-05-27 2021-05-25 4 TECH BIO-TECHNE Corp
Common Stock
S - Sale -845 811 -51.03 424.00 -358,280 343,864
2021-05-04 2021-05-01 4 TECH BIO-TECHNE Corp
Restricted Stock Units
M - Exercise -1,667 0 -100.00
2021-05-04 2021-05-01 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -856 1,656 -34.08 427.49 -365,931 707,923
2021-05-04 2021-05-01 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 1,667 2,512 197.28
2021-02-09 2021-02-05 4 TECH BIO-TECHNE Corp
Common Stock
S - Sale -823 845 -49.34 388.45 -319,694 328,240
2020-08-07 2020-08-05 4 TECH BIO-TECHNE Corp
Stock Options (Right to Buy)
A - Award 8,325 8,325
2020-08-07 2020-08-05 4 TECH BIO-TECHNE Corp
Stock Options (Right to Buy)
A - Award 8,325 8,325
2020-08-07 2020-08-05 4 TECH BIO-TECHNE Corp
Stock Options (Right to Buy)
A - Award 11,988 11,988
2020-08-07 2020-08-05 4 TECH BIO-TECHNE Corp
Stock Options (Right to Buy)
A - Award 8,991 8,991
2020-08-07 2020-08-05 4 TECH BIO-TECHNE Corp
Restricted Stock Units
A - Award 2,015 2,015
2020-05-05 2020-05-01 4 TECH BIO-TECHNE Corp
Restricted Stock Units
M - Exercise -1,666 1,667 -49.98
2020-05-05 2020-05-01 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -821 1,668 -32.99 227.54 -186,810 379,537
2020-05-05 2020-05-01 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 1,666 2,489 202.43
2019-08-09 2019-08-07 4 TECH BIO-TECHNE Corp
Stock Options (Right to Buy)
A - Award 15,948 15,948
2019-08-09 2019-08-07 4 TECH BIO-TECHNE Corp
Stock Options (Right to Buy)
A - Award 11,961 11,961
2019-08-09 2019-08-07 4 TECH BIO-TECHNE Corp
Restricted Stock Units
A - Award 2,363 2,363
2019-05-02 2019-05-01 4 TECH BIO-TECHNE Corp
Restricted Stock
M - Exercise -1,667 0 -100.00
2019-05-02 2019-05-01 4 TECH BIO-TECHNE Corp
Common Stock
F - Taxes -844 823 -50.63 202.13 -170,598 166,353
2019-05-02 2019-05-01 4 TECH BIO-TECHNE Corp
Common Stock
M - Exercise 1,667 1,667 202.13 336,951 336,951
2018-08-10 2018-08-08 4 TECH BIO-TECHNE Corp
Stock Options (Right to buy)
A - Award 9,033 9,033
2018-08-10 2018-08-08 4 TECH BIO-TECHNE Corp
Stock Options (Right to buy)
A - Award 12,044 12,044
2018-08-10 2018-08-08 4 TECH BIO-TECHNE Corp
Restricted Stock Units
A - Award 1,691 1,691
2018-05-03 2018-05-01 4 TECH BIO-TECHNE Corp
Stock Option (Right to Buy)
A - Award 7,348 10,000 277.07
2018-05-03 2018-05-01 4 TECH BIO-TECHNE Corp
Stock Option (Right to Buy)
A - Award 2,652 2,652
2018-05-03 2018-05-01 4 TECH BIO-TECHNE Corp
Restricted Stock
A - Award 5,000 5,000
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)