Prelude Therapeutics Incorporated
US ˙ NasdaqGS ˙ US74065P1012

Introduction

This page provides a comprehensive analysis of the known insider trading history of Bryant David Lim. 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 Bryant David Lim has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:PRLD / Prelude Therapeutics Incorporated CLO, Interim CFO, Corp Sec. 27,400
US:IDRA / Idera Pharmaceuticals, Inc. SVP AND GENERAL COUNSEL 309,695
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Bryant David Lim. 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 PRLD / Prelude Therapeutics Incorporated - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in PRLD / Prelude Therapeutics Incorporated. 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 (%)
2024-12-19 PRLD Lim Bryant David 25,000 0.9055 25,000 0.9055 22,638 7 1.4000 12,363 54.61
2023-05-24 PRLD Lim Bryant David 2,400 5.3900 2,400 5.3900 12,936

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

PRLD / Prelude Therapeutics Incorporated Insider Trades
Insider Sales PRLD / Prelude Therapeutics Incorporated - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in PRLD / Prelude Therapeutics Incorporated. 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.

PRLD / Prelude Therapeutics Incorporated Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Bryant David Lim 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
2024-12-20 2024-12-19 4 PRLD Prelude Therapeutics Inc
Common Stock
P - Purchase 25,000 27,400 1,041.67 0.91 22,638 24,811
2023-05-25 2023-05-24 4 PRLD Prelude Therapeutics Inc
Common Stock
P - Purchase 2,400 2,400 5.39 12,936 12,936
2023-01-10 2023-01-06 4 IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
F - Taxes -119,957 309,695 -27.92 0.71 -85,157 219,852
2023-01-10 2023-01-06 4 IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
A - Award 399,218 429,652 1,311.75
2022-04-04 2022-04-01 4 IDRA IDERA PHARMACEUTICALS, INC.
Stock Option (Right to Buy)
A - Award 41,500 41,500
2022-01-26 2022-01-24 4 IDRA IDERA PHARMACEUTICALS, INC.
Stock Option (Right to Buy)
A - Award 25,000 25,000
2021-07-12 2021-07-08 4 IDRA IDERA PHARMACEUTICALS, INC.
Stock Option (Right to Buy)
A - Award 66,500 66,500
2021-03-29 2021-03-25 4 IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
S - Sale -7,630 30,434 -20.05 1.36 -10,378 41,393
2021-01-12 2021-01-12 4 IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
S - Sale -1,711 38,064 -4.30 4.21 -7,202 160,215
2021-01-12 2021-01-08 4 IDRA IDERA PHARMACEUTICALS, INC.
Stock Option (Right to Buy)
A - Award 51,000 51,000
2021-01-11 2021-01-05 4 IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
S - Sale -1,465 39,775 -3.55 3.91 -5,722 155,353
2020-07-23 2020-07-21 4 IDRA IDERA PHARMACEUTICALS, INC.
Stock Option (Right to Buy)
A - Award 50,000 50,000
2020-01-14 2020-01-10 4 IDRA IDERA PHARMACEUTICALS, INC.
Stock Option (Right to Buy)
A - Award 50,000 50,000
2020-01-14 2020-01-10 4 IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
A - Award 20,000 41,240 94.16
2020-01-14 2020-01-07 4/A IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
S - Sale X -1,603 21,240 -7.02 1.78 -2,854 37,816
2020-01-10 2020-01-07 4 IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
S - Sale -1,603 21,240 -7.02 1.78 -2,854 37,816
2019-07-11 2019-07-09 4 IDRA IDERA PHARMACEUTICALS, INC.
Stock Option (Right to Buy)
A - Award 45,500 45,500
2019-01-07 2019-01-03 4 IDRA IDERA PHARMACEUTICALS, INC.
Stock Option (Right to Buy)
A - Award 45,500 45,500
2019-01-07 2019-01-03 4 IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
A - Award 18,100 22,843 381.62
2018-12-26 2018-12-21 4 IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
P - Purchase 4,000 4,743 538.36 3.05 12,200 14,466
2018-11-02 3/A IDRA IDERA PHARMACEUTICALS, INC.
Common Stock
743
2018-09-13 2018-09-10 4 IDRA IDERA PHARMACEUTICALS, INC.
Stock Option (Right to Buy)
A - Award 130,000 130,000
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)