Bank of Marin Bancorp
US ˙ NasdaqCM ˙ US0634251021

Introduction

This page provides a comprehensive analysis of the known insider trading history of Nicolas C Anderson. 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.

See Highest Ranking Insiders
Companies with Reported Insider Positions

The SEC filings indicate Nicolas C Anderson has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:BMRC / Bank of Marin Bancorp Director 11,637
US:MGRC / McGrath RentCorp Director 3,500
Director 0
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Nicolas C Anderson. 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 BMRC / Bank of Marin Bancorp - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in BMRC / Bank of Marin Bancorp. 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.

BMRC / Bank of Marin Bancorp Insider Trades
Insider Sales BMRC / Bank of Marin Bancorp - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in BMRC / Bank of Marin Bancorp. 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.

BMRC / Bank of Marin Bancorp Insider Trades
Insider Purchases MGRC / McGrath RentCorp - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in BMRC / Bank of Marin Bancorp. 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.

MGRC / McGrath RentCorp Insider Trades
Insider Sales MGRC / McGrath RentCorp - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in BMRC / Bank of Marin Bancorp. 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.

MGRC / McGrath RentCorp Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Nicolas C Anderson 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
2025-07-02 2025-07-01 4 BMRC Bank of Marin Bancorp
Common Stock 		J - Other 992 11,637 9.32 24.05 23,858 279,870
2025-04-03 2025-04-01 4 MGRC MCGRATH RENTCORP
Common Stock 		M - Exercise 1,000 3,500 40.00
2025-02-25 2025-02-21 4 MGRC MCGRATH RENTCORP
Common Stock 		A - Award 1,000 2,500 66.67
2025-01-02 2025-01-02 4 BMRC Bank of Marin Bancorp
Common Stock 		J - Other 985 10,645 10.20 23.51 23,157 250,264
2024-07-02 2024-07-01 4 BMRC Bank of Marin Bancorp
Common Stock 		J - Other 1,407 9,660 17.05 16.46 23,159 159,004
2024-04-04 2024-04-01 4 MGRC MCGRATH RENTCORP
Common Stock 		M - Exercise 1,200 1,500 400.00
2024-01-03 2024-01-02 4 BMRC Bank of Marin Bancorp
Common Stock 		J - Other 1,027 8,253 14.21 21.90 22,491 180,741
2023-07-03 2023-07-03 4 BMRC Bank of Marin Bancorp
Common Stock 		J - Other 1,250 7,226 20.92 18.00 22,500 130,068
2023-04-05 2023-04-03 4 MGRC MCGRATH RENTCORP
Common Stock 		M - Exercise 300 300
2023-01-04 2023-01-03 4 BMRC Bank of Marin Bancorp
Common Stock 		J - Other 629 5,976 11.76 32.54 20,468 194,459
2022-07-06 2022-07-05 4 BMRC Bank of Marin Bancorp
Common Stock 		J - Other 629 5,347 13.33 32.55 20,474 174,045
2022-01-05 2022-01-03 4 BMRC Bank of Marin Bancorp
Common Stock 		J - Other 429 4,718 10.00 37.35 16,023 176,217
2021-08-10 2021-08-06 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		D - Sale to Issuer -7,461 0 -100.00
2021-08-10 3 BMRC Bank of Marin Bancorp
Common Stock 		4,290
2021-05-21 2021-05-20 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		A - Award 1,126 7,461 17.77
2020-10-30 2020-10-30 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		A - Award 500 6,335 8.57 10.55 5,275 66,834
2020-07-30 2020-07-30 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		A - Award 500 5,835 9.37 10.10 5,049 58,917
2020-06-18 2020-06-17 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		A - Award 2,140 5,335 66.98
2020-04-28 2020-04-27 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		P - Purchase 500 3,195 18.55 10.00 5,000 31,950
2019-11-12 2019-11-11 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		P - Purchase 675 2,695 33.42 14.59 9,847 39,315
2019-05-17 2019-05-16 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		A - Award 1,020 2,020 102.00
2019-05-08 2019-05-08 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		P - Purchase 375 1,000 60.00 12.81 4,804 12,810
2019-02-13 2019-02-12 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		P - Purchase 325 625 108.33 14.48 4,706 9,050
2018-11-13 2018-11-09 4 AMRB AMERICAN RIVER BANKSHARES
Common Stock 		P - Purchase -300 300 -50.00 15.02 -4,506 4,506
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)