CERN Insider Trading
CERN | Market Equity
Comprehensive Trading Performance Summary
The investment history of corporate insiders at CERN provides a unique lens into the internal conviction of the company's leadership. By analyzing SEC Form 4 filings, investors can track how directors and officers are allocating their own capital. High-conviction buying often signals that management believes the current market price significantly undervalues future growth prospects, while strategic selling might occur for personal liquidity or portfolio diversification. Monitoring these shifts in ownership is essential for understanding the alignment between management and shareholders in the Market Equity sector.
Transactions on Chart
Open Full Chart| Filing Date | Trade Date | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|
| 2022-05-07 00:01 | 2022-05-04 | Battaglioli Michael R. | Officer - SVP & Chief Accounting Officer | SELL | $94.09 | 5,288 | $497,548 | 3,412 | -60.8% |
| 2022-03-12 00:44 | 2022-03-11 | Platt Tracy L | Officer - Chief Human Resources Officer | SELL | $93.40 | 7,769 | $725,625 | 0 | -100.0% |
| 2022-03-09 00:06 | 2022-03-04 | Devers Daniel | Officer - EVP & Chief Legal Officer | SELL | $93.29 | 51,174 | $4,774,022 | 8,910 | -85.2% |
| 2021-08-25 23:02 | 2021-08-24 | Devers Daniel | Officer - EVP & Chief Legal Officer | SELL | $77.45 | 9,000 | $697,050 | 2,723 | -76.8% |
| 2021-08-10 16:05 | 2021-08-06 | Battaglioli Michael R. | Officer - SVP & Chief Accounting Officer | SELL | $80.02 | 9,750 | $780,225 | 2,402 | -80.2% |
| 2021-08-03 16:14 | 2021-08-02 | Platt Tracy L | Officer - Chief Human Resources Officer | SELL | $79.70 | 9,989 | $796,123 | 0 | -100.0% |
| 2021-06-04 23:01 | 2021-06-04 | Dalton Travis | Officer - EVP & Chief Client & Serv. Off | SELL | $81.17 | 23,603 | $1,915,856 | 2,695 | -89.8% |
| 2021-05-15 00:11 | 2021-05-14 | Battaglioli Michael R. | Officer - VP & Chief Accounting Officer | SELL | $77.06 | 5,480 | $422,289 | 2,402 | -69.5% |
| 2021-05-08 01:02 | 2021-05-07 | Shafer David Brent | Director, Officer - Chairman and CEO | SELL | $76.36 | 88,729 | $6,775,346 | 0 | -100.0% |
| 2021-03-11 00:01 | 2021-03-08 | Erceg Mark J | Officer - Exec. VP & CFO | BUY | $71.13 | 10,547 | $750,241 | 31,963 | +49.2% |
| 2021-03-04 00:33 | 2021-03-01 | Erceg Mark J | Officer - Exec. VP & CFO | BUY | $69.66 | 10,761 | $749,596 | 21,416 | +101.0% |
| 2021-02-25 00:02 | 2021-02-22 | Erceg Mark J | Officer - Exec. VP & CFO | BUY | $70.43 | 10,655 | $750,422 | 10,655 | +100.0% |
| 2021-02-19 00:05 | 2021-02-17 | ZOLLARS WILLIAM D | Director | SELL | $72.63 | 6,256 | $454,373 | 19,316 | -24.5% |
| 2020-12-16 00:08 | 2020-12-11 | Battaglioli Michael R. | Officer - VP & Chief Accounting Officer | SELL | $74.95 | 2,960 | $221,852 | 712 | -80.6% |
| 2020-12-04 00:34 | 2020-12-01 | PETERZALEK JOHN | Officer - EVP & Chief Client & Serv. Off | SELL | $76.00 | 100 | $7,600 | 16,107 | -0.6% |
| 2020-11-18 00:26 | 2020-11-16 | RIEDEL GEORGE ANDREW | Director | SELL | $75.69 | 1,750 | $132,458 | 9,637 | -15.4% |
| 2020-11-18 00:25 | 2020-11-13 | PETERZALEK JOHN | Officer - EVP & Chief Client & Serv. Off | SELL | $75.25 | 16,100 | $1,211,494 | 16,107 | -50.0% |
| 2020-11-13 01:14 | 2020-11-09 | PETERZALEK JOHN | Officer - EVP & Chief Client & Serv. Off | SELL | $76.05 | 53,148 | $4,041,927 | 16,107 | -76.7% |
| 2020-08-07 00:13 | 2020-08-06 | BISBEE GERALD E JR | Director | SELL | $69.86 | 7,456 | $520,876 | 54,716 | -12.0% |
| 2020-07-31 23:28 | 2020-07-31 | Platt Tracy L | Officer - Chief Human Resources Officer | SELL | $71.38 | 6,948 | $495,948 | 0 | -100.0% |
| 2020-06-12 01:01 | 2020-06-09 | Dillman Linda M | Director | SELL | $72.32 | 3,556 | $257,170 | 25,845 | -12.1% |
| 2020-06-12 01:00 | 2020-06-09 | Shafer David Brent | Director, Officer - Chairman and CEO | SELL | $72.42 | 12,000 | $869,040 | 0 | -100.0% |
| 2020-06-04 23:11 | 2020-06-03 | Trigg Donald | Officer - President | SELL | $73.31 | 36,574 | $2,681,240 | 866 | -97.7% |
| 2020-05-29 23:05 | 2020-05-28 | Shafer David Brent | Director, Officer - Chairman and CEO | SELL | $71.30 | 45,000 | $3,208,329 | 0 | -100.0% |
| 2020-05-29 23:04 | 2020-05-28 | PETERZALEK JOHN | Officer - EVP & Chief Client & Serv. Off | SELL | $70.89 | 53,177 | $3,769,718 | 7,505 | -87.6% |
| 2020-05-29 23:03 | 2020-05-28 | Battaglioli Michael R. | Officer - VP & Chief Accounting Officer | SELL | $71.31 | 4,000 | $285,240 | 712 | -84.9% |
| 2020-05-13 23:13 | 2020-05-11 | Shafer David Brent | Director, Officer - Chairman and CEO | SELL | $68.52 | 14,282 | $978,603 | 0 | -100.0% |
| 2020-05-02 00:26 | 2020-04-30 | Shafer David Brent | Director, Officer - Chairman and CEO | OPT+S | $69.73 | 11,907 | $830,275 | 14,282 | 0.0% |
| 2020-02-14 04:02 | 2020-02-11 | SIMS RANDY D | Officer - EVP, CLO & Secretary | SELL | $80.00 | 188,780 | $15,102,400 | 52,967 | -78.1% |
| 2020-02-12 02:00 | 2020-02-07 | Trigg Donald | Officer - Exec. VP, Strategic Growth | SELL | $78.94 | 17,400 | $1,373,556 | 7,116 | -71.0% |
| 2020-02-08 03:48 | 2020-02-06 | Battaglioli Michael R. | Officer - VP & Chief Accounting Officer | SELL | $79.40 | 10,000 | $794,000 | 226 | -97.8% |
| 2020-02-08 03:46 | 2020-02-06 | NAUGHTON MARC G | Officer - Exec. VP & CFO | SELL | $79.15 | 176,000 | $13,930,400 | 84,898 | -67.5% |
| 2019-11-28 00:01 | 2019-11-25 | Battaglioli Michael R. | Officer - VP & Chief Accounting Officer | SELL | $70.48 | 10,000 | $704,800 | 226 | -97.8% |
| 2019-11-21 00:02 | 2019-11-19 | Nill Michael | Officer - Exec VP & COO | SELL | $68.15 | 81,772 | $5,572,762 | 37,707 | -68.4% |
| 2019-11-21 00:01 | 2019-11-18 | PETERZALEK JOHN | Officer - EVP and Chief Client Officer | SELL | $68.21 | 29,665 | $2,023,426 | 1 | -100.0% |
| 2019-09-16 23:02 | 2019-09-13 | PETERZALEK JOHN | Officer - EVP and Chief Client Officer | SELL | $68.33 | 42,767 | $2,922,269 | 9,212 | -82.3% |
| 2019-09-16 23:02 | 2019-09-13 | Nill Michael | Officer - Exec VP & COO | SELL | $68.07 | 13,124 | $893,351 | 63,479 | -17.1% |
| 2019-09-12 01:01 | 2019-09-09 | TOWNSEND JEFFREY A | Officer - Exec. VP & Chief of Innovation | SELL | $66.46 | 199,432 | $13,254,251 | 0 | -100.0% |
| 2019-09-11 01:01 | 2019-09-06 | TOWNSEND JEFFREY A | Officer - Exec. VP & Chief of Innovation | SELL | $67.59 | 349,922 | $23,651,228 | 0 | -100.0% |
| 2019-09-07 01:16 | 2019-09-06 | Trigg Donald | Officer - Exec. VP, Strategic Growth | SELL | $67.72 | 29,423 | $1,992,526 | 7,116 | -80.5% |
| 2019-09-07 01:01 | 2019-09-06 | NAUGHTON MARC G | Officer - Exec. VP & CFO | SELL | $67.58 | 24,110 | $1,629,354 | 84,898 | -22.1% |
| 2019-08-23 23:12 | 2019-08-21 | PETERZALEK JOHN | Officer - EVP and Chief Client Officer | SELL | $72.11 | 27,484 | $1,981,786 | 9,212 | -74.9% |
| 2019-08-23 23:11 | 2019-08-22 | Gerberding Julie L. | Director | SELL | $71.82 | 7,928 | $569,389 | 8,128 | -49.4% |
| 2019-06-14 23:02 | 2019-06-13 | SIMS RANDY D | Officer - EVP, CLO & Secretary | SELL | $72.45 | 40,000 | $2,898,000 | 34,286 | -53.8% |
| 2019-06-13 23:03 | 2019-06-12 | ZOLLARS WILLIAM D | Director | SELL | $72.11 | 1,400 | $100,954 | 25,572 | -5.2% |
| 2019-06-03 23:09 | 2019-05-30 | Dillman Linda M | Director | SELL | $70.14 | 4,100 | $287,574 | 22,778 | -15.3% |
| 2019-05-31 23:01 | 2019-05-29 | Nill Michael | Officer - Exec VP & COO | SELL | $69.42 | 244,000 | $16,938,480 | 37,707 | -86.6% |
| 2019-05-21 23:02 | 2019-05-20 | WILSON JULIE M | Officer - EVP & Chief People Officer | SELL | $69.57 | 93,500 | $6,504,795 | 10 | -100.0% |
| 2019-05-17 23:04 | 2019-05-16 | Battaglioli Michael R. | Officer - VP & Chief Accounting Officer | SELL | $69.13 | 18,000 | $1,244,299 | 226 | -98.8% |
| 2019-05-17 23:03 | 2019-05-16 | SIMS RANDY D | Officer - EVP, CLO & Secretary | SELL | $69.27 | 48,000 | $3,324,960 | 34,286 | -58.3% |
How to Interpret $CERN Trades
Not every insider transaction in CERN is a signal for immediate action. Professional investors look for "cluster buying"—when multiple executives simultaneously purchase $CERN shares on the open market. It is crucial to distinguish between scheduled sales (under Rule 10b5-1) and voluntary increases in ownership, which demonstrate management’s true conviction that the stock is undervalued.
Data Source & Accuracy for CERN
Insider activity data for CERN is streamed in real-time directly from the SEC EDGAR system. We analyze raw Form 4 filings, filtering out technical adjustments and complex derivative transactions. This provides a transparent view of how ownership structure is evolving in $CERN, allowing you to follow the capital of those with the most intimate knowledge of the company.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.