Shattuck Labs, Inc.
US ˙ NasdaqGS ˙ US82024L1035

Introduction

This page provides a comprehensive analysis of the known insider trading history of Andrew R Neill. 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 Andrew R Neill has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:STTK / Shattuck Labs, Inc. Chief Financial Officer 237,473
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Andrew R Neill. 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 STTK / Shattuck Labs, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in STTK / Shattuck Labs, Inc.. 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.

STTK / Shattuck Labs, Inc. Insider Trades
Insider Sales STTK / Shattuck Labs, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in STTK / Shattuck Labs, Inc.. 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 (%)
2024-01-10 STTK Neill Andrew R 25,000 10.0000 25,000 10.0000 250,000 317 1.0050 -224,875 -89.95
2021-07-15 STTK Neill Andrew R 2,000 22.1316 2,000 22.1316 44,263
2021-06-15 STTK Neill Andrew R 2,000 27.5253 2,000 27.5253 55,051
2021-05-17 STTK Neill Andrew R 2,000 26.2712 2,000 26.2712 52,542
2021-04-28 STTK Neill Andrew R 20,000 35.0000 20,000 35.0000 700,000
2021-04-15 STTK Neill Andrew R 24,000 30.7400 24,000 30.7400 737,760

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

STTK / Shattuck Labs, Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Andrew R Neill 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
2025-08-27 2025-08-25 4 STTK Shattuck Labs, Inc.
Common Stock
A - Award 64,027 237,473 36.91 0.87 55,556 206,055
2024-01-16 2024-01-10 4 STTK Shattuck Labs, Inc.
Common Stock
S - Sale -25,000 173,446 -12.60 10.00 -250,000 1,734,460
2024-01-16 2024-01-10 4 STTK Shattuck Labs, Inc.
Common Stock
F - Taxes -2,470 198,446 -1.23 10.09 -24,922 2,002,320
2024-01-16 2024-01-10 4 STTK Shattuck Labs, Inc.
Common Stock
A - Award 56,500 200,916 39.12
2023-01-27 2023-01-25 4 STTK Shattuck Labs, Inc.
Common Stock
A - Award 34,925 144,416 31.90
2022-01-12 2022-01-10 4 STTK Shattuck Labs, Inc.
Stock Option (Right to Buy)
A - Award 66,650 66,650
2022-01-12 2022-01-10 4 STTK Shattuck Labs, Inc.
Common Stock
A - Award 33,325 109,491 43.75
2021-11-12 2021-11-11 4 STTK Shattuck Labs, Inc.
Stock Option (Right to Buy)
M - Exercise -20,000 43,705 -31.39
2021-11-12 2021-11-11 4 STTK Shattuck Labs, Inc.
Common Stock
M - Exercise 20,000 76,166 35.61 2.95 59,000 224,690
2021-08-11 2021-08-10 4 STTK Shattuck Labs, Inc.
Stock Option (Right to Buy)
M - Exercise -2,203 0 -100.00
2021-08-11 2021-08-10 4 STTK Shattuck Labs, Inc.
Common Stock
M - Exercise 2,203 56,166 4.08 0.01 22 562
2021-07-16 2021-07-15 4 STTK Shattuck Labs, Inc.
Common Stock
S - Sale -2,000 53,963 -3.57 22.13 -44,263 1,194,288
2021-06-16 2021-06-15 4 STTK Shattuck Labs, Inc.
Common Stock
S - Sale -2,000 55,963 -3.45 27.53 -55,051 1,540,398
2021-05-17 2021-05-17 4 STTK Shattuck Labs, Inc.
Common Stock
S - Sale -2,000 57,963 -3.34 26.27 -52,542 1,522,758
2021-05-12 2021-05-12 4 STTK Shattuck Labs, Inc.
Stock Option (Right to Buy)
M - Exercise -8,860 2,203 -80.09
2021-05-12 2021-05-12 4 STTK Shattuck Labs, Inc.
Common Stock
M - Exercise 8,860 59,963 17.34 0.01 89 600
2021-04-30 2021-04-28 4 STTK Shattuck Labs, Inc.
Common Stock
S - Sale -20,000 51,103 -28.13 35.00 -700,000 1,788,605
2021-04-19 2021-04-15 4 STTK Shattuck Labs, Inc.
Common Stock
S - Sale -24,000 71,103 -25.24 30.74 -737,760 2,185,706
2020-12-28 2020-12-22 4 STTK Shattuck Labs, Inc.
Stock Option (Right to Buy)
A - Award 14,608 14,608
2020-12-28 2020-12-22 4 STTK Shattuck Labs, Inc.
Stock Option (Right to Buy)
M - Exercise -4,426 11,063 -28.58
2020-12-28 2020-12-22 4 STTK Shattuck Labs, Inc.
Common Stock
M - Exercise 4,426 95,103 4.88 0.01 44 951
2020-11-09 2020-11-05 4 STTK Shattuck Labs, Inc.
Stock Option (Right to Buy)
M - Exercise -2,211 15,489 -12.49
2020-11-09 2020-11-05 4 STTK Shattuck Labs, Inc.
Common Stock
M - Exercise 2,211 90,677 2.50 0.01 22 907
2020-10-08 3 STTK Shattuck Labs, Inc.
Common Stock
88,466
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)