[Form 4/A] Hecla Mining Company Amended Insider Trading Activity

Rhea-AI Filing Summary

Hecla Mining Company (HL) filed an amended Form 4 reporting multiple transactions by David C. Sienko, Senior VP, General Counsel & Secretary, on June 23, 2025. Key transactions include:

• Disposition of 13,768 shares at $5.82 per share for tax withholding on vested restricted stock units
• Acquisition of 60,137 new restricted stock units vesting in three equal tranches from 2026-2028
• Receipt of 15,258 shares in 401(k) plan
• Grant of performance rights worth $350,000-$700,000 based on Total Shareholder Return performance over 2025-2027

Following these transactions, Sienko beneficially owns 1,115,621 shares directly, comprising 847,004 shares, 149,589 performance units, and 119,028 unvested RSUs, plus indirect ownership through the 401(k) plan. This amendment was filed to correct the original Form 4 submitted on June 25, 2025.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Sienko David C

(Last) (First) (Middle)

6500 N. MINERAL DRIVE, SUITE 200

(Street)

COEUR D'ALENE ID 83815

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
HECLA MINING CO/DE/ [ HL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Sr. VP, GC & Secretary

3. Date of Earliest Transaction (Month/Day/Year)
06/23/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)
06/25/2025

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/23/2025		F		13,768(1)	D	$5.82	1,115,621(2)	D
Common Stock	06/23/2025		A		60,137(3)	A	$5.82	1,115,621(4)	D
Common Stock	06/23/2025		J		15,258(5)	A	$0	15,258	I	401(k) Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance rights	$0	06/23/2025		A		60,137(6)		01/01/2028	01/01/2028	Common Stock	60,137	$0	1,115,621(7)	D

Explanation of Responses:

1. Mr. Sienko was awarded (i) 38,374 restricted stock units on June 21, 2022; 35,350 restricted stock units on June 21, 2023, 60,479 restricted stock units on June 21, 2024, and 5,902 restricted stock units on August 20, 2024. One-third of those restricted stock units vested on June 23, 2025. To cover his tax liability on those vested units, Hecla Mining Company withheld 13,768 shares.

2. Consists of 847,004 shares held directly,149,589 performance-based units, and 119,028 unvested restricted stock units.

3. Award of restricted stock units that vest as follows: 20,046 shares on June 21, 2026; 20,046 shares on June 21, 2027; and 20,045 shares on June 21, 2028.

4. See footnote 2.

5. Held as 1,365.777 units in Mr. Sienko's 401(k) account under the Hecla Mining Company Capital Accumulation Plan and estimated to be 15,258 shares.

6. Mr. Sienko was awarded performance rights representing the contingent right to receive between $350,000 and $700,000 worth of Hecla Mining Company common stock based on Hecla Mining Company's Total Shareholder Return performance over the 3-year period (January 1, 2025 to December 31, 2027) relative to our peers. Examples of the potential grant of shares to Mr. Sienko under this plan are as follows: 100th percentile rank among peers = maximum award at 200% of target ($700,000 in stock); 50th percentile rank among peers = target award at grant value ($350,000 in stock), and 0 percentile rank among peers = threshold award below 25% target.

7. See footnote 2.

	Tami D. Whitman, Attorney-in-Fact for David C. Sienko	06/26/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What insider transactions did David Sienko (HL's Senior VP & General Counsel) report on June 23, 2025?

On June 23, 2025, David Sienko reported multiple transactions: 1) Disposition of 13,768 shares at $5.82 per share for tax withholding, 2) Acquisition of 60,137 new restricted stock units, and 3) Addition of 15,258 shares in his 401(k) plan. He also received performance rights for potential awards worth between $350,000 and $700,000 based on shareholder return performance.

How many shares of HL stock does David Sienko own after these transactions?

Following the reported transactions, David Sienko beneficially owns 1,115,621 shares, consisting of 847,004 shares held directly, 149,589 performance-based units, and 119,028 unvested restricted stock units. Additionally, he holds 15,258 shares indirectly through his 401(k) plan.

What are the vesting terms for HL's new restricted stock units granted to Sienko?

The 60,137 restricted stock units granted will vest in three approximately equal installments: 20,046 shares on June 21, 2026, 20,046 shares on June 21, 2027, and 20,045 shares on June 21, 2028.

What performance conditions are attached to HL's new performance rights granted to Sienko?

The performance rights are tied to Hecla Mining Company's Total Shareholder Return performance from January 1, 2025 to December 31, 2027 relative to peers. The award ranges from $350,000 to $700,000 in stock value, with 200% of target awarded at 100th percentile rank, 100% at 50th percentile, and below 25% target at 0 percentile.