Transaction · 0001628280-26-061581
MDGLMADRIGAL PHARMACEUTICALS, INC.
Sibold William John
Sibold William John, PRES, reported an open-market or private sale at MADRIGAL PHARMACEUTICALS, INC. involving 1202.000000 shares for an estimated $652209.05. Reported holdings after the transaction were 200166.000000 shares. The stored filing text includes a detected 10b5-1 reference.
Open-market sellSEC transaction code SPRES
- Trade date
- Sep 11, 2026
- Filing date
- Sep 11, 2026
How reported position traded is calculated
Shares sold ÷ (holdings after + shares sold). Estimated position before: 201,368 shares.
Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.
MDGL price since this filing
Daily closing prices, with the filing date and available return windowsMDGL · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago +0.3%1w ago +1.2%1d ago -0.3%
Returns since7d -0.6%30d -11.7%90d180d1y
Transaction facts
Stored Form 4 columns with their raw values
- Type
- Sell Code S
- Identifier
- 0001628280-26-061581 Common Stock
- Transaction date
- Sep 11, 2026 Filed Sep 11, 2026, 08:57 PM · 0d delay
- Shares
- 1,202 sh $542.60 per share
- Estimated value
- -$652k Computed from shares × price
- Holdings after
- 200,166 sh Direct
Filing signal explanations
Badges describe filing facts only — not predictions.
Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership Large Sale Repeat Seller 10b5-1 Detected
Filing-only score
0 points
Compact filing score computed from stored Form 4 facts. Version v1.
Neutral filing signal
This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.
How this score is calculated
- direct_ownership+6 points
direct_or_indirect_ownership = D
Direct ownership reports the insider's personal stake. - timely_filing+4 points
reporting_delay_days = 0
Filing reported within two business days of the transaction. - tenb5_1_detected-10 points
is_10b5_1 = true
Stored filing content includes detected 10b5-1 language.
Signed filing-only points, not a probability or expected return. Version v1.
Reported relationships & other filings
Form 4 relationship flags and nearby filing context
Reported roles
President and CEO
Officer YesDirector Yes10% NoOther No
Footnotes & amended
- F1
This sale represents the number of shares sold by the Issuer on behalf of the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. This sale…
- F2
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $527.49 to $528.27, inclusive. The reporting person undertakes to pro…
- F3
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $528.54 to $529.51, inclusive.
- F4
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $529.64 to $530.48, inclusive.
- F5
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $531.57 to $532.28, inclusive.
- F6
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $532.57 to $533.29, inclusive.
- F7
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $533.58 to $534.57, inclusive.
- F8
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $534.63 to $535.62, inclusive.
- F9
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $535.64 to $536.45, inclusive.
- F10
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $536.64 to $537.56, inclusive.
- F11
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $537.70 to $538.65, inclusive.
- F12
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $538.86 to $539.83, inclusive.
- F13
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $539.86 to $540.47, inclusive.
- F14
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $541.29 to $542.27, inclusive.
- F15
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $542.42 to $542.68, inclusive.
- F16
These sales were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 5, 2026.
- F17
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $532.76 to $533.64, inclusive.
- F18
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $533.76 to $534.48, inclusive.
- F19
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $535.52 to $536.02, inclusive.
- F20
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $537.235 to $538.00, inclusive.
- F21
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $539.97 to $540.90, inclusive.
- F22
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $541.00 to $541.73, inclusive.
- F23
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $542.11 to $543.02, inclusive.
- F24
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $543.27 to $544.20, inclusive.
- F25
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $544.38 to $545.32, inclusive.
- F26
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $546.28 to $546.56, inclusive.
Related transactions
Same SEC filing0 other transactions
Recent company activity
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