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[Form 4] HECLA MINING CO/DE/ Insider Trading Activity

Filing Impact
(Very High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Hecla Mining senior vice president and general counsel David C. Sienko reported routine equity compensation and related tax withholding transactions in company stock. He received a grant of 22,724 shares of common stock at $15.98 per share and a matching award of 22,724 performance rights tied to future performance.

To cover taxes on previously awarded restricted stock units that vested on June 22, 2026, 23,973 shares were withheld by Hecla at $15.98 per share rather than sold in the open market. A separate non-cash adjustment moved 17,354 shares into his 401(k) plan. After these transactions, disclosures show a mix of directly held shares, 401(k) holdings, performance-based rights, and unvested restricted stock units.

Positive

  • None.

Negative

  • None.
Insider Sienko David C
Role Sr. VP, GC & Secretary
Type Security Shares Price Value
Grant/Award Performance rights 22,724 $0.00 --
Tax Withholding Common Stock 23,973 $15.98 $383K
Grant/Award Common Stock 22,724 $15.98 $363K
Other Common Stock 17,354 $0.00 --
Holdings After Transaction: Performance rights — 934,511 shares (Direct, null); Common Stock — 934,511 shares (Direct, null); Common Stock — 17,354 shares (Indirect, Held in 401(k) Plan)
Footnotes (1)
  1. Mr. Sienko was awarded 35,350 restricted stock units on June 21, 2023, 60,479 restricted stock units on June 21, 2024, 5,902 restricted stock units on August 20, 2024, and 60,137 restricted stock units on June 23, 2025. One-third of those restricted stock units vested on June 22, 2026. To cover his tax liability on those vested units, Hecla Mining Company withheld 23,973 shares. Consists of 684,053 shares held directly, 17,354 shares in 401(k)Plan, 148,432 performance-based rights, and 84,672 unvested restricted stock units. Award of restricted stock units that vest as follows: 7,575 shares on June 21, 2027, 7,575 shares on June 21, 2028, and 7,574 shares on June 21, 2029. See footnote 2. Held as 1,451.345 units in Mr. Sienko's 401(k) account under the Hecla Mining Company Capital Accumulation Plan and estimated to be 17,354 shares. Mr. Sienko was awarded performance rights representing the contingent right to receive between $363,125 and $726,250 worth of Hecla Mining Company common stock based on Hecla Mining Company's total Shareholder Return performance over the 3-year period (January 1, 2026 to December 31, 2028) 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 ($726,250 in stock); 50th percentile rank among peers = target award at grant value ($363,125 in stock), and 0 percentile rank among peers = threshold award below 25% target. See footnote 2.
Stock grant 22,724 shares at $15.98 Common stock award on June 22, 2026
Tax-withheld shares 23,973 shares at $15.98 Shares withheld to cover tax on vested RSUs
401(k) plan shares 17,354 shares Held via 1,451.345 units in 401(k) account
Direct share holdings 684,053 shares Common stock held directly as referenced in footnote
Performance-based rights 148,432 rights Performance-based rights outstanding per footnote
Unvested RSUs 84,672 units Unvested restricted stock units outstanding
Performance rights value range $363,125–$726,250 Value range based on TSR over 2026–2028
New performance rights grant 22,724 underlying shares Performance rights with zero exercise price, expiring 2029
restricted stock units financial
"Mr. Sienko was awarded 35,350 restricted stock units on June 21, 2023..."
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
performance rights financial
"Mr. Sienko was awarded performance rights representing the contingent right to receive..."
Performance rights are conditional awards that give employees or executives the promise of receiving company shares or cash only if the business meets specific targets or survives for a set period. They work like a bonus you only get when certain goals are hit, so they matter to investors because they can increase the number of shares outstanding (dilution), signal management’s incentives and confidence in future results, and affect per-share earnings and valuation.
tax liability financial
"To cover his tax liability on those vested units, Hecla Mining Company withheld 23,973 shares."
401(k) account financial
"Held as 1,451.345 units in Mr. Sienko's 401(k) account under the Hecla Mining Company Capital Accumulation Plan..."
total Shareholder Return financial
"based on Hecla Mining Company's total Shareholder Return performance over the 3-year period..."
Total shareholder return is the overall gain an investor gets from owning a stock, combining changes in the share price plus any cash payouts like dividends, and assuming those payouts are reinvested in more shares. Investors use it like a single score that shows the true return on their investment—similar to checking both the growth of a savings account and the interest earned—to compare how well different companies or investments perform over time.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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 IDAHO 83815
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
HECLA MINING CO/DE/ [ HL ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Sr. VP, GC & Secretary
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/22/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock06/22/2026F23,973(1)D$15.98934,511(2)D
Common Stock06/22/2026A22,724(3)A$15.98934,511(4)D
Common Stock06/22/2026J17,354(5)A$017,354IHeld in 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Performance rights$006/22/2026A22,724(6)01/01/202901/01/2029Common Stock22,724$0934,511(7)D
Explanation of Responses:
1. Mr. Sienko was awarded 35,350 restricted stock units on June 21, 2023, 60,479 restricted stock units on June 21, 2024, 5,902 restricted stock units on August 20, 2024, and 60,137 restricted stock units on June 23, 2025. One-third of those restricted stock units vested on June 22, 2026. To cover his tax liability on those vested units, Hecla Mining Company withheld 23,973 shares.
2. Consists of 684,053 shares held directly, 17,354 shares in 401(k)Plan, 148,432 performance-based rights, and 84,672 unvested restricted stock units.
3. Award of restricted stock units that vest as follows: 7,575 shares on June 21, 2027, 7,575 shares on June 21, 2028, and 7,574 shares on June 21, 2029.
4. See footnote 2.
5. Held as 1,451.345 units in Mr. Sienko's 401(k) account under the Hecla Mining Company Capital Accumulation Plan and estimated to be 17,354 shares.
6. Mr. Sienko was awarded performance rights representing the contingent right to receive between $363,125 and $726,250 worth of Hecla Mining Company common stock based on Hecla Mining Company's total Shareholder Return performance over the 3-year period (January 1, 2026 to December 31, 2028) 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 ($726,250 in stock); 50th percentile rank among peers = target award at grant value ($363,125 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. Sienko06/24/2026
** Signature of Reporting PersonDate
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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did Hecla Mining (HL) executive David Sienko report in this Form 4?

Hecla Mining executive David C. Sienko reported routine equity compensation changes, including new stock and performance-right grants plus share withholding for taxes. These transactions adjust his compensation-related holdings but do not involve open-market buying or selling of company stock.

How many Hecla Mining (HL) shares were granted to David Sienko?

David Sienko received a grant of 22,724 shares of Hecla Mining common stock at $15.98 per share. This award reflects stock-based compensation and increases his direct equity position without representing an open-market purchase of shares.

Why were 23,973 Hecla Mining (HL) shares withheld from David Sienko?

Hecla Mining withheld 23,973 shares to cover David Sienko’s tax liability on previously granted restricted stock units that vested on June 22, 2026. This tax-withholding disposition is not an open-market sale but a standard mechanism to satisfy tax obligations.

What performance rights did David Sienko receive from Hecla Mining (HL)?

David Sienko was granted performance rights covering 22,724 underlying shares of Hecla Mining common stock. These rights have a zero exercise price and are tied to future vesting dates and performance conditions, rather than immediate ownership of unrestricted shares.

How large is David Sienko’s overall Hecla Mining (HL) equity position?

Footnotes state David Sienko holds 684,053 shares directly, 17,354 estimated shares in a 401(k) plan, 148,432 performance-based rights, and 84,672 unvested restricted stock units. Together, these components show a substantial, compensation-driven equity stake in Hecla Mining.

What is the value range of the new Hecla Mining (HL) performance rights?

The performance rights awarded to David Sienko represent a contingent value between $363,125 and $726,250 in Hecla Mining stock. The final amount depends on total shareholder return performance from January 1, 2026, to December 31, 2028, relative to selected peer companies.