Central Securities Corporation
US ˙ NYSEAM ˙ US1551231020

Introduction

This page provides a comprehensive analysis of the known insider trading history of John C Hill. 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

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Companies with Reported Insider Positions

The SEC filings indicate John C Hill has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:CET / Central Securities Corporation CEO & President, Director 72,992
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by John C Hill. 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 CET / Central Securities Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in CET / Central Securities 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 (%)
2025-01-06 CET Hill John C 700 45.8700 700 45.8700 32,109 241 50.5700 3,290 10.25
2024-10-30 CET Hill John C 600 46.7100 600 46.7100 28,026
2024-10-30 CET Hill John C 200 47.1300 200 47.1300 9,426
2024-05-02 CET Hill John C 300 40.7700 300 40.7700 12,231
2024-05-02 CET Hill John C 200 40.8200 200 40.8200 8,164
2024-04-18 CET Hill John C 200 40.4300 200 40.4300 8,086
2024-04-18 CET Hill John C 200 40.3900 200 40.3900 8,078
2024-03-14 CET Hill John C 300 39.9400 300 39.9400 11,982
2023-10-25 CET Hill John C 260 35.1500 260 35.1500 9,139
2023-10-25 CET Hill John C 40 35.1500 40 35.1500 1,406
2023-10-20 CET Hill John C 200 35.5100 200 35.5100 7,102
2021-08-17 CET Hill John C 100 42.3000 100 42.3000 4,230
2020-10-28 CET Hill John C 100 28.2700 100 28.2700 2,827
2020-10-28 CET Hill John C 10 28.2200 10 28.2200 282
2020-09-08 CET Hill John C 400 28.8200 400 28.8200 11,528
2020-09-04 CET Hill John C 400 29.1800 400 29.1800 11,672
2020-03-18 CET Hill John C 1,000 20.2800 1,000 20.2800 20,280
2020-03-12 CET Hill John C 930 25.2900 930 25.2900 23,520
2020-03-12 CET Hill John C 70 25.3000 70 25.3000 1,771
2020-03-11 CET Hill John C 700 27.9000 700 27.9000 19,530
2020-02-28 CET Hill John C 700 29.8400 700 29.8400 20,888
2020-02-27 CET Hill John C 700 30.5400 700 30.5400 21,378
2018-12-28 CET Hill John C 325 24.5900 325 24.5900 7,992
2018-12-21 CET Hill John C 550 24.5400 550 24.5400 13,497
2018-12-20 CET Hill John C 1,200 24.6800 1,200 24.6800 29,616
2016-04-15 CET Hill John C 1,000 19.3800 1,000 19.3800 19,380
2016-03-15 CET Hill John C 1,000 18.8300 1,000 18.8300 18,830
2016-03-07 CET Hill John C 1,000 18.7400 1,000 18.7400 18,740
2016-02-29 CET Hill John C 1,200 18.1500 1,200 18.1500 21,780
2016-02-08 CET Hill John C 2,000 17.2700 2,000 17.2700 34,540
2016-02-03 CET Hill John C 2,000 17.7600 2,000 17.7600 35,520

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

CET / Central Securities Corporation Insider Trades
Insider Sales CET / Central Securities Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in CET / Central Securities 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.

CET / Central Securities Corporation Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by John C Hill 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
2025-01-08 2025-01-06 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 700 72,992 0.97 45.87 32,109 3,348,143
2024-11-01 2024-10-30 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 200 819 32.31 47.13 9,426 38,599
2024-11-01 2024-10-30 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 600 69,296 0.87 46.71 28,026 3,236,816
2024-11-01 2024-06-26 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 3 619 0.49 43.87 132 27,156
2024-11-01 2024-06-26 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 149 68,696 0.22 43.87 6,537 3,013,694
2024-05-02 2024-05-02 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 200 616 48.08 40.82 8,164 25,145
2024-05-02 2024-05-02 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 300 68,547 0.44 40.77 12,231 2,794,661
2024-04-19 2024-04-18 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 200 416 92.59 40.39 8,078 16,802
2024-04-19 2024-04-18 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 200 68,247 0.29 40.43 8,086 2,759,226
2024-03-14 2024-03-14 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 300 68,047 0.44 39.94 11,982 2,717,797
2023-10-26 2023-10-25 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 40 206 24.10 35.15 1,406 7,241
2023-10-26 2023-10-25 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 260 64,841 0.40 35.15 9,139 2,279,161
2023-10-24 2023-10-20 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 200 64,581 0.31 35.51 7,102 2,293,271
2023-10-24 2023-06-28 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 151 64,381 0.24 35.79 5,404 2,304,196
2023-02-06 2022-12-22 5 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 20 166 13.70 33.73 675 5,599
2023-02-06 2022-12-22 5 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 10 64,230 0.02 33.74 337 2,167,120
2023-02-06 2022-06-27 5 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 1 137 0.74 35.87 36 4,914
2023-02-06 2022-06-27 5 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 141 60,545 0.23 35.87 5,058 2,171,749
2021-12-16 2021-12-14 4 CET CENTRAL SECURITIES CORP
Common Stock 		F - Taxes -4,527 56,214 -7.45 41.31 -187,010 2,322,200
2021-12-16 2021-12-14 4 CET CENTRAL SECURITIES CORP
Common Stock 		A - Award 10,682 60,741 21.34 41.31 441,273 2,509,211
2021-08-18 2021-08-17 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 100 50,059 0.20 42.30 4,230 2,117,496
2021-08-18 2021-06-28 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 1 125 0.81 42.18 42 5,272
2021-08-18 2021-06-28 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 122 49,959 0.24 42.18 5,146 2,107,271
2020-12-18 2020-12-16 4 CET CENTRAL SECURITIES CORP
Common Stock 		F - Taxes -3,398 47,788 -6.64 31.68 -107,649 1,513,924
2020-12-18 2020-12-16 4 CET CENTRAL SECURITIES CORP
Common Stock 		A - Award 8,891 51,186 21.02 31.68 281,667 1,621,572
2020-10-29 2020-10-28 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 10 119 9.17 28.22 282 3,358
2020-10-29 2020-10-28 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 100 42,295 0.24 28.27 2,827 1,195,680
2020-10-29 2020-09-25 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 14 109 14.74 28.54 400 3,111
2020-10-29 2020-09-25 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 273 42,195 0.65 28.48 7,775 1,201,714
2020-09-09 2020-09-08 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 400 41,922 0.96 28.82 11,528 1,208,192
2020-09-09 2020-09-04 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 400 41,522 0.97 29.18 11,672 1,211,612
2020-09-09 2020-06-29 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 1 95 1.06 28.37 28 2,695
2020-09-09 2020-06-29 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 164 41,122 0.40 28.37 4,653 1,166,631
2020-03-20 2020-03-18 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 1,000 40,958 2.50 20.28 20,280 830,628
2020-03-13 2020-03-12 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 70 94 291.67 25.30 1,771 2,378
2020-03-13 2020-03-12 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 930 39,958 2.38 25.29 23,520 1,010,538
2020-03-13 2020-03-11 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 700 39,028 1.83 27.90 19,530 1,088,881
2020-03-02 2020-02-28 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 700 38,328 1.86 29.84 20,888 1,143,708
2020-02-28 2020-02-27 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 700 37,628 1.90 30.54 21,378 1,149,159
2020-02-28 2020-01-23 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 18 24 300.00 33.58 604 806
2019-12-13 2019-12-11 4 CET CENTRAL SECURITIES CORP
Common Stock 		F - Taxes -2,772 35,801 -7.19 31.98 -88,649 1,144,916
2019-12-13 2019-12-11 4 CET CENTRAL SECURITIES CORP
Common Stock 		A - Award 7,253 38,573 23.16 31.98 231,951 1,233,565
2019-12-13 2019-08-27 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 6 6 30.02 180 180
2019-12-13 2019-06-26 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 123 31,320 0.39 30.22 3,717 946,490
2019-12-13 2019-06-03 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 45 31,197 0.14 28.66 1,290 894,106
2019-01-02 2018-12-28 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 325 31,152 1.05 24.59 7,992 766,028
2018-12-26 2018-12-21 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 550 29,803 1.88 24.54 13,497 731,366
2018-12-21 2018-12-20 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 1,200 29,253 4.28 24.68 29,616 721,964
2018-12-14 2018-12-12 4 CET CENTRAL SECURITIES CORP
Common Stock 		F - Taxes -3,031 28,053 -9.75 25.96 -78,685 728,256
2018-12-14 2018-12-12 4 CET CENTRAL SECURITIES CORP
Common Stock 		A - Award 7,933 31,084 34.27 25.96 205,941 806,941
2018-12-14 2018-12-07 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 11 23,151 0.05 25.87 285 598,919
2018-12-14 2018-06-27 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 139 23,140 0.60 27.92 3,881 646,141
2017-12-15 2017-12-13 4 CET CENTRAL SECURITIES CORP
Common Stock 		F - Taxes -1,943 22,412 -7.98 26.92 -52,301 603,275
2017-12-15 2017-12-13 4 CET CENTRAL SECURITIES CORP
Common Stock 		A - Award 4,715 24,355 24.01 26.92 126,916 655,576
2017-12-15 2017-06-28 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 119 19,640 0.61 25.08 2,985 492,571
2017-01-27 2016-12-28 5 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 66 19,521 0.34 21.84 1,441 426,339
2016-12-16 2016-12-14 4 CET CENTRAL SECURITIES CORP
Common Stock 		A - Award 4,595 18,979 31.95 21.76 99,987 412,983
2016-12-16 2016-06-29 4 CET CENTRAL SECURITIES CORP
Common Stock 		L - Other 134 14,384 0.94 19.37 2,596 278,618
2016-04-18 2016-04-15 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 1,000 14,250 7.55 19.38 19,380 276,165
2016-03-17 2016-03-15 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 1,000 13,250 8.16 18.83 18,830 249,498
2016-03-09 2016-03-07 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 1,000 12,250 8.89 18.74 18,740 229,565
2016-03-02 2016-02-29 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 1,200 11,250 11.94 18.15 21,780 204,188
2016-02-10 2016-02-08 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 2,000 10,050 24.84 17.27 34,540 173,564
2016-02-04 2016-02-03 4 CET CENTRAL SECURITIES CORP
Common Stock 		P - Purchase 2,000 8,050 33.06 17.76 35,520 142,968
2016-02-01 3 CET CENTRAL SECURITIES CORP
Common Stock 		12,100
2016-02-01 3 CET CENTRAL SECURITIES CORP
Common Stock 		12,100
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)