Harold H. Shlevin - 08 Dec 2025 Form 4 Insider Report for GALECTIN THERAPEUTICS INC (GALT)

Role
Director
Signature
Jack W. Callicutt, by power of attorney
Issuer symbol
GALT
Transactions as of
08 Dec 2025
Net transactions value
-$664,515
Form type
4
Filing time
10 Dec 2025, 08:15:55 UTC
Previous filing
30 Jan 2025
Next filing
16 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Shlevin Harold H. Director C/O GALECTIN THERAPEUTICS INC., 4960 PEACHTREE INDUSTRIAL BLVD., STE 240, NORCROSS Jack W. Callicutt, by power of attorney 10 Dec 2025 0001557082

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GALT Common Stock Sale $24,020 -4,000 -26% $6.00 11,206 08 Dec 2025 Direct F1, F7
transaction GALT Common Stock Options Exercise $100,100 +35,000 +312% $2.86 46,206 08 Dec 2025 Direct F1
transaction GALT Common Stock Sale $208,250 -35,000 -76% $5.95 11,206 08 Dec 2025 Direct F1, F8
transaction GALT Common Stock Options Exercise $42,200 +20,000 +178% $2.11 31,206 08 Dec 2025 Direct F1
transaction GALT Common Stock Sale $119,240 -20,000 -64% $5.96 11,206 08 Dec 2025 Direct F1, F9
transaction GALT Common stock Options Exercise $39,600 +20,000 +178% $1.98 31,206 08 Dec 2025 Direct F1
transaction GALT Common stock Sale $119,240 -20,000 -64% $5.96 11,206 08 Dec 2025 Direct F1, F9
transaction GALT Common Stock Options Exercise $43,000 +25,000 +223% $1.72 36,206 08 Dec 2025 Direct F1
transaction GALT Common Stock Sale $148,650 -25,000 -69% $5.95 11,206 08 Dec 2025 Direct F1, F8
transaction GALT Common Stock Options Exercise $73,850 +35,000 +312% $2.11 46,206 08 Dec 2025 Direct F1
transaction GALT Common Stock Sale $210,665 -35,000 -76% $6.02 11,206 08 Dec 2025 Direct F1, F10
transaction GALT Common Stock Options Exercise $22,200 +20,000 +178% $1.11 31,206 08 Dec 2025 Direct F1
transaction GALT Common Stock Sale $120,040 -20,000 -64% $6.00 11,206 08 Dec 2025 Direct F1, F7
transaction GALT Common Stock Options Exercise $69,846 +16,790 +150% $4.16 27,996 09 Dec 2025 Direct F1
transaction GALT Common Stock Sale $105,206 -16,790 -60% $6.27 11,206 09 Dec 2025 Direct F1, F12

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction GALT Stock option (right to buy) Options Exercise $0 -35,000 -50% $0.000000 35,000 08 Dec 2025 Common Stock 35,000 $2.86 Direct F1, F2
transaction GALT Stock option (right to buy) Options Exercise $0 -20,000 -50% $0.000000 20,000 08 Dec 2025 Common Stock 20,000 $2.11 Direct F1, F3
transaction GALT Stock option (right to buy) Options Exercise $0 -20,000 -50% $0.000000 20,000 08 Dec 2025 Common stock 20,000 $1.98 Direct F1, F4
transaction GALT Stock Option (right to buy) Options Exercise $0 -25,000 -50% $0.000000 25,000 08 Dec 2025 Common Stock 25,000 $1.72 Direct F1, F5
transaction GALT Stock Option (right to buy) Options Exercise $0 -35,000 -50% $0.000000 35,000 08 Dec 2025 Common Stock 35,000 $2.11 Direct F1, F5
transaction GALT Stock Option (right to buy) Options Exercise $0 -20,000 -50% $0.000000 20,000 08 Dec 2025 Common Stock 20,000 $1.11 Direct F1, F6
transaction GALT Stock Option (right to buy) Options Exercise $0 -16,790 -19% $0.000000 73,210 09 Dec 2025 Common Stock 16,790 $4.16 Direct F1, F11
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The reported transaction was made pursuant to a Rule 10b5-1 plan adopted by the reporting person on August 29, 2025, as disclosed in the Issuer?s Quarterly Report on Form 10-Q, filed with the SEC on November 14, 2025.
F2 The options vested as follows: 25% on each of June 30, 2021, December 31, 2021, June 30, 2022, and December 31, 2022.
F3 The options vested 100% on December 31, 2021.
F4 The options vested 100% on December 31, 2022.
F5 The options vested 100% on December 31, 2024.
F6 The options vested 100% on December 31, 2023.
F7 The shares were sold in multiple transactions at prices ranging from $6.00 to $6.05. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request by the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.
F8 The shares were sold in multiple transactions at prices ranging from $5.69 to $6.05. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request by the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.
F9 The shares were sold in multiple transactions at prices ranging from $5.69 to $6.034. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request by the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.
F10 The shares were sold in multiple transactions at prices ranging from $6.00 to $6.08. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request by the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.
F11 The options vested as follows: 25% on each of June 30, 2018 and September 30, 2018, and 50% on December 31, 2018.
F12 The shares were sold in multiple transactions at prices ranging from $6.25 to $6.31. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request by the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.