Hecla executive exercises 23,881 performance rights

Hecla Mining Company executive David C. Sienko exercised performance-based equity awards and had shares withheld for taxes.

Rhea-AI Filing Summary

Hecla Mining Company executive David C. Sienko exercised performance-based equity awards and had shares withheld for taxes. On March 2, 2026, he exercised 23,881 performance rights into 23,881 shares of common stock at a stated price of $0.00 per share.

A separate transaction withheld 7,294 common shares at $24.63 per share to cover tax liabilities tied to the vesting of those performance rights. After these transactions, he held 654,340 shares of common stock directly and 115,634 unvested restricted stock units, for a total equity interest of 769,974 common share equivalents.

Insider Trade Summary

23,881 shares exercised/converted

Exercise 3 txns

Insider Sienko David C

Role S. Vice President, GC & Secy.

Type	Security	Shares	Price	Value
Exercise	Performance rights	23,881	$0.00	$0.00
Exercise	Common Stock	23,881	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	7,294	$24.63	$180K

Holdings After Transaction: Performance rights — 115,634 contracts (Direct); Common Stock — 769,974 shares (Direct)

Footnotes (7)

1. F1. In June 2023, Mr. Sienko was awarded performance rights representing the contingent right to receive between $60,300 and $241,200 worth of Hecla Mining Company common stock based on Hecla Mining Company's Total shareholder Return p4erformanc over the 3-year period (January 1, 2023 to December 31, 2025) based on the following p4ercentile rank within Hecla's pe4er group companies: 100th percentile rank among peers = maximum award at 200% of target ($241,200 in stock); 40th to 60th percentile rank among peers = target at grant value ($120,600 in stock); and 25th percentile rank among peers = threshold award at 50% of target ($60,300 in stock).
2. F2. In reporting the number of performance rights at the time of the award, Mr. Sienko assumed a target (i.e., $120,600 in stock), with the common stock valued at the closing price on the day of the award ($5.05), and therefore reported an award of 23,881 performance rights. Based on Hecla Mining Company's total shareholder return ranking, Mr. Sienko's award value was 100% and he therefore received 23,881 shares in settlement of the award (with the shares valued at the $5.05 closing price on June 21, 2023).
3. F3. Consists of outstanding performance rights.
4. F4. See footnotes (1) and (2). Shares received upon settlement of performance rights awarded in June 2023.
5. F5. Consists of 661,634 shares held directly, and 115,634 unvested restricted stock units.
6. F6. Shares withheld for tax liability on 23,881 performance rights that vested.
7. F7. Consists of 654,340 shares held directly, and 115,634 unvested restricted stock units.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did Hecla Mining (HL) report for David C. Sienko?

Hecla Mining reported that executive David C. Sienko exercised 23,881 performance rights into 23,881 common shares and had 7,294 shares withheld. The withheld shares covered tax obligations related to the vesting of those performance-based awards.

How many performance rights did David C. Sienko exercise at Hecla Mining (HL)?

David C. Sienko exercised 23,881 performance rights into 23,881 shares of Hecla Mining common stock. These rights were granted in June 2023 and settled based on the company’s total shareholder return performance over a defined three-year period.

Were any Hecla Mining (HL) shares sold by David C. Sienko in the open market?

The filing shows no open-market sale by David C. Sienko. Instead, 7,294 shares of common stock were withheld at $24.63 per share to satisfy tax liabilities associated with the vesting and settlement of his performance rights.

What is David C. Sienko’s Hecla Mining (HL) ownership after these Form 4 transactions?

After the reported transactions, David C. Sienko directly owned 654,340 shares of Hecla Mining common stock. He also held 115,634 unvested restricted stock units, giving him exposure to a total of 769,974 common share equivalents.

How were David C. Sienko’s Hecla Mining (HL) performance rights originally valued?

At grant, David C. Sienko assumed a target value of $120,600 in stock, using a $5.05 closing price to calculate 23,881 performance rights. Based on total shareholder return ranking, the award ultimately settled at 100% of the target value.

What determined the payout level on David C. Sienko’s Hecla Mining (HL) performance rights?

The payout on David C. Sienko’s performance rights depended on Hecla Mining’s total shareholder return percentile versus a peer group. Outcomes ranged from 50% of target at the 25th percentile to 200% of target at the 100th percentile, with 100% ultimately achieved.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/04/2026 - 06:58 PM EST Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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)
	S. Vice President, GC & Secy.

3. Date of Earliest Transaction (Month/Day/Year)
03/02/2026

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

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	03/02/2026		M		23,881(4)	A	$0	777,268(5)	D
Common Stock	03/02/2026		F		7,294(6)	D	$24.63	769,974(7)	D

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	03/02/2026		M		23,881(1)(2)		12/31/2025	12/31/2025	Common Stock	23,881	$0	115,634(3)	D

Explanation of Responses:

1. In June 2023, Mr. Sienko was awarded performance rights representing the contingent right to receive between $60,300 and $241,200 worth of Hecla Mining Company common stock based on Hecla Mining Company's Total shareholder Return p4erformanc over the 3-year period (January 1, 2023 to December 31, 2025) based on the following p4ercentile rank within Hecla's pe4er group companies: 100th percentile rank among peers = maximum award at 200% of target ($241,200 in stock); 40th to 60th percentile rank among peers = target at grant value ($120,600 in stock); and 25th percentile rank among peers = threshold award at 50% of target ($60,300 in stock).

2. In reporting the number of performance rights at the time of the award, Mr. Sienko assumed a target (i.e., $120,600 in stock), with the common stock valued at the closing price on the day of the award ($5.05), and therefore reported an award of 23,881 performance rights. Based on Hecla Mining Company's total shareholder return ranking, Mr. Sienko's award value was 100% and he therefore received 23,881 shares in settlement of the award (with the shares valued at the $5.05 closing price on June 21, 2023).

3. Consists of outstanding performance rights.

4. See footnotes (1) and (2). Shares received upon settlement of performance rights awarded in June 2023.

5. Consists of 661,634 shares held directly, and 115,634 unvested restricted stock units.

6. Shares withheld for tax liability on 23,881 performance rights that vested.

7. Consists of 654,340 shares held directly, and 115,634 unvested restricted stock units.

	Tami D. Whitman, Attorney-in-Fact for David C. Sienko	03/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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