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IPO filing research

Sunshine Silver Mining & Refining Co

Gold and Silver Ores · SSMR

ipo trading trading NYSE 424B4

Sunshine Silver Mining & Refining Co IPO research page with SEC filing history, offering status, deal terms, structured filing extracts, company news, and comparable IPO context. Latest filing: 424B4 on 2026-06-05. Current deal snapshot: exchange NYSE.

Filing Timeline

SEC EDGAR
424B4 priced
Final prospectus
Final prospectus filed after pricing with final deal terms.
First tracked pre-IPO filing for this issuer.
Price $13.50 · 20,000,000 shares · Gross proceeds $270,000,000
common stock · Exchange NYSE · Ticker SSMR · Over-allotment 3,000,000 · Underwriters Morgan Stanley, Scotiabank, BMO Capital Markets
Sunshine Silver Mining & Refining Co. has filed a 424B4 prospectus for its IPO, detailing underwriting terms, lock-up agreements, and registration rights. The offering includes 20 million shares at $13.50 per share, with underwriters Morgan Stanley, Scotia Capital, and BMO leading the syndicate. A 180-day lock-up period restricts sales of shares, and registration rights are outlined for major stockholders. The company plans to list on NYSE under 'SSMR'.
2026-06-05 · 0001140361-26-024037
EFFECT effective
SEC effectiveness notice
SEC declared the registration statement effective, allowing the offering to proceed.
First tracked pre-IPO filing for this issuer.
2026-06-03 · 9999999995-26-001869
8-A12B effective
Exchange Act registration
Registration filed to list the securities under the Exchange Act ahead of trading.
Follows DRS and registers the class of securities for exchange listing.
2026-06-03 · 0001140361-26-023826
CERT inactive
CERT
Pre-IPO filing captured from the SEC submission timeline.
First tracked pre-IPO filing for this issuer.
2026-06-03 · 0000876661-26-000498
S-1/A amended
Amended registration statement
Updated registration statement filed after SEC comments or deal changes.
First tracked pre-IPO filing for this issuer.
Range $13.50 to $16.50 · 20,000,000 shares
Common Stock · Exchange NYSE · Ticker SSMR · Over-allotment 3,000,000 · Underwriters Morgan Stanley, Scotiabank, BMO Capital Markets
Sunshine Silver Mining & Refining Co. has amended its S-1 filing (S-1/A) to detail the terms of its upcoming IPO, including underwriting agreements, share allocations, and resale restrictions. The offering involves 20,000,000 shares of common stock with an option for underwriters to purchase an additional 3,000,000 shares. Lock-up agreements restrict insiders and major shareholders from selling shares for 180 days, with specific exceptions. The company also outlines registration rights for major stockholders and underwriter-led price stabilization activities.
2026-05-26 · 0001140361-26-022717
S-1 filed
Initial registration statement
Initial public filing submitted to start the SEC review process.
Follows DRS/A in the pre-IPO sequence.
Common Stock · Exchange NYSE · Ticker SSMR · Underwriters Morgan Stanley, Scotiabank, BMO Capital Markets
Sunshine Silver Mining & Refining Co. is conducting an IPO with underwriters including Morgan Stanley, Scotia Capital, and BMO Capital Markets. The offering includes lock-up agreements for 180 days, restrictions on share sales, and a detailed allocation of proceeds for project development, exploration, and general corporate purposes. The company plans to list on the NYSE under 'SSMR'.
2026-05-11 · 0001140361-26-020608
DRS/A amended
Amended draft registration statement
Updated draft registration filed before the public launch.
Updates the prior DRS filing.
Sunshine Silver Mining & Refining Co. is offering shares to raise capital, with net proceeds intended for feasibility studies, mining equipment, infrastructure, and other operational needs. The company emphasizes that the Board of Directors and management will have broad discretion in allocating funds, with no guarantees of effective use. Risks include reliance on the Sunshine Mine, uncertain mineral resource estimates, and potential delays in project development.
2026-04-03 · 0001140361-26-013160
DRS filed
Draft registration statement
Draft registration filed confidentially before the public launch.
First tracked pre-IPO filing for this issuer.
Sunshine Silver Mining & Refining Co. is registering 100 million shares of common stock for an IPO under Form S-1, with an estimated price range of $15-$20 per share. The company, an emerging growth company, plans to list on the NYSE under the symbol SSMR. Electrum Group LLC will hold approximately 40% of voting power post-offering, making it a controlled company under NYSE rules. The offering includes a 15% underwriter over-allotment option. No prior public market exists for the stock, and the filing includes a cautionary note about risks outlined in the 'Risk Factors' section.
2025-12-18 · 0001140361-25-045901
Comparable Deals

3 comparable deals

Energy & Mining$100-300MMorgan StanleyLast 18 months
Only 0 strict matches; expanded to 3 using nearest neighbors.
-6.5%
Median day-1
0%
Above issue
-10.4%
Median week-1
-38.6%
Downside (p10)