Geron Corporation - Equity Warrant
US ˙ OTCPK ˙ US3741631291

Introduction

This page provides a comprehensive analysis of the known insider trading history of Craig C Parker. 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 Craig C Parker has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:SRZN / Surrozen, Inc. Chief Executive Officer, Director 7,024
US:VTVT / vTv Therapeutics Inc. Director 70,000
US:GERN / Geron Corporation EVP, Corp Dev & Sci Affairs 400,000
US:HGSI / Human Genome Sciences Inc Sr VP Strategy and Corporate D 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 Craig C Parker. 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 GERNW / Geron Corporation - Equity Warrant - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in GERNW / Geron Corporation - Equity Warrant. 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.

GERNW / Geron Corporation - Equity Warrant Insider Trades
Insider Sales GERNW / Geron Corporation - Equity Warrant - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in GERNW / Geron Corporation - Equity Warrant. 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.

GERNW / Geron Corporation - Equity Warrant Insider Trades
Insider Purchases SRZNW / Surrozen, Inc. - Equity Warrant - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in GERNW / Geron Corporation - Equity Warrant. 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 (%)
2024-04-04 SRZN Parker Craig C 1,474 1,474 274 17.0200

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

SRZNW / Surrozen, Inc. - Equity Warrant Insider Trades
Insider Sales SRZNW / Surrozen, Inc. - Equity Warrant - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in GERNW / Geron Corporation - Equity Warrant. 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.

SRZNW / Surrozen, Inc. - Equity Warrant Insider Trades
Insider Purchases VTVT / vTv Therapeutics Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in GERNW / Geron Corporation - Equity Warrant. 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.

VTVT / vTv Therapeutics Inc. Insider Trades
Insider Sales VTVT / vTv Therapeutics Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in GERNW / Geron Corporation - Equity Warrant. 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.

VTVT / vTv Therapeutics Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Craig C Parker 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
2025-06-16 2025-06-13 4 SRZN Surrozen, Inc./DE
Common Stock
A - Award 400 7,024 6.04 8.06 3,224 56,613
2024-06-18 2024-06-14 4 SRZN Surrozen, Inc./DE
Common Stock
A - Award 400 5,824 7.37 5.67 2,268 33,022
2024-04-08 2024-04-04 4 SRZN Surrozen, Inc./DE
Common Stock
P - Purchase 1,474 1,474
2023-12-18 2023-12-15 4 SRZN Surrozen, Inc./DE
Common Stock
A - Award 2,046 2,046 5.67 11,601 11,601
2023-06-20 2023-06-15 4 SRZN Surrozen, Inc./DE
Common Stock
A - Award 25,000 34,578 261.01 0.38 9,500 13,140
2022-12-19 2022-12-15 4 SRZN Surrozen, Inc./DE
Common Stock
A - Award 9,578 9,578 0.41 3,927 3,927
2022-03-03 2022-03-01 4 SRZN Surrozen, Inc./DE
Stock Option (right to buy)
A - Award 370,000 370,000
2021-08-16 2021-08-12 4 SRZN Surrozen, Inc./DE
Stock Option (right to buy)
A - Award 183,335 183,335
2018-05-02 2018-04-30 4 VTVT vTv Therapeutics Inc.
Director stock option (right to buy)
A - Award 15,000 70,000 27.27 1.79 26,850 125,300
2017-05-03 2017-05-01 4 VTVT vTv Therapeutics Inc.
Director stock option (right to buy)
A - Award 15,000 55,000 37.50 5.31 79,650 292,050
2016-05-16 2016-05-12 4 VTVT vTv Therapeutics Inc.
Director stock option (right to buy)
A - Award 15,000 40,000 60.00
2015-08-05 2015-08-04 4 VTVT vTv Therapeutics Inc.
Director stock option (right to buy)
A - Award 25,000 25,000
2015-07-30 3 VTVT vTv Therapeutics Inc.
No securities are beneficially owned
0
2014-02-12 2014-02-10 4 GERN GERON CORP
Employee Stock Option (right to buy)
A - Award 400,000 400,000
2013-02-14 2013-02-12 4 GERN GERON CORP
Employee Stock Option (right to buy)
A - Award 400,000 400,000
2012-08-01 2012-07-30 4 HGSI HUMAN GENOME SCIENCES INC
Employee Stock Option - Right to Buy
D - Sale to Issuer -54,000 0 -100.00 14.25 -769,500
2012-03-12 2012-03-10 4 HGSI HUMAN GENOME SCIENCES INC
Employee Stock Option - Right to Buy
A - Award 54,000 54,000
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)