MLAC
insider transactionsMountain Lake Acquisition Corp. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
+510.0K
510.0K buy · 0 sell
Net value · 365d
$5.1M
$5.1M in · $0 out
Sentiment · 365d
Net buying
100% buying · 0% selling
Open-market trades · 365d
1
510.0K buy · 0 sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Other·D
Mountain Lake Acquisition Sponsor LLC
10% Owner
—
4.4M sh
Own -100%
-
Other·D
Mountain Lake Acquisition Sponsor LLC
10% Owner
—
495.0K sh
Own -100%
-
Exercise·M
Director
—
478.0K sh
Own New
-
Other·D
Director
—
478.0K sh
Own -100%
-
Exercise·M
Director
—
9.1K sh
Own New
-
Other·D
Director
—
15.9K sh
Own -64%
-
Other·D
Director
—
9.1K sh
Own -100%
-
Exercise·M
Director
—
9.1K sh
Own New
-
Exercise·M
Director
—
9.1K sh
Own New
-
Other·D
Director
—
15.9K sh
Own -64%
-
Other·D
Director
—
9.1K sh
Own -100%
-
Exercise·M
Director
—
9.1K sh
Own New
-
Exercise·M
Douglas Horlick KEY
CFO and President
—
478.0K sh
Own New
-
Other·D
Douglas Horlick KEY
CFO and President
—
478.0K sh
Own -100%
-
Exercise·M
Paul Grinberg KEY
Chief Executive Officer
—
478.0K sh
Own New
-
Other·D
Paul Grinberg KEY
Chief Executive Officer
—
478.0K sh
Own -100%
-
Other·J
Director
—
478.0K sh
-
Other·J
Douglas Horlick KEY
CFO and President
—
478.0K sh
-
Other·J
Paul Grinberg KEY
Chief Executive Officer
—
478.0K sh
-
Other·J
Mountain Lake Acquisition Sponsor LLC
10% Owner
—
2.8M sh
-
Other·J
$0
6.0K sh
-
Buy·P
Paul Grinberg / MOUNTAIN LAKE ACQUISITION SPONSOR II LLC / Douglas Horlick KEY
Chief Executive Officer
$5.1M
510.0K sh · $10.00
Own New
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 11, 2026 | Mountain Lake Acquisition Sponsor LLC | Other D | 4.4M | — |
| Jun 11, 2026 | Mountain Lake Acquisition Sponsor LLC | Other D | 495.0K | — |
| Jun 11, 2026 | Jaime Vieser | Exercise M | 478.0K | — |
| Jun 11, 2026 | Jaime Vieser | Other D | 478.0K | — |
| Jun 11, 2026 | Michael J. Marquez | Exercise M | 9.1K | — |
| Jun 11, 2026 | Michael J. Marquez | Other D | 15.9K | — |
| Jun 11, 2026 | Michael J. Marquez | Other D | 9.1K | — |
| Jun 11, 2026 | Michael J. Marquez | Exercise M | 9.1K | — |
| Jun 11, 2026 | Jeffrey Todd Lager | Exercise M | 9.1K | — |
| Jun 11, 2026 | Jeffrey Todd Lager | Other D | 15.9K | — |
| Jun 11, 2026 | Jeffrey Todd Lager | Other D | 9.1K | — |
| Jun 11, 2026 | Jeffrey Todd Lager | Exercise M | 9.1K | — |
| Jun 11, 2026 | Douglas Horlick KEY | Exercise M | 478.0K | — |
| Jun 11, 2026 | Douglas Horlick KEY | Other D | 478.0K | — |
| Jun 11, 2026 | Paul Grinberg KEY | Exercise M | 478.0K | — |
| Jun 11, 2026 | Paul Grinberg KEY | Other D | 478.0K | — |
| Jun 1, 2026 | Jaime Vieser | Other J | 478.0K | — |
| Jun 1, 2026 | Douglas Horlick KEY | Other J | 478.0K | — |
| Jun 1, 2026 | Paul Grinberg KEY | Other J | 478.0K | — |
| Jun 1, 2026 | Mountain Lake Acquisition Sponsor LLC | Other J | 2.8M | — |
| Mar 16, 2026 | Paul Grinberg / MOUNTAIN LAKE ACQUISITION SPONSOR II LLC / Douglas Horlick KEY | Other J | 6.0K | $0 |
| Jan 28, 2026 | Paul Grinberg / MOUNTAIN LAKE ACQUISITION SPONSOR II LLC / Douglas Horlick KEY | Buy P | 510.0K | $5.1M |
About MLAC insider trading
This page tracks insider transactions for Mountain Lake Acquisition Corp. (MLAC) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.