Paul Grinberg insider trades: Mountain Lake Acquisition Corp. II (MLAA) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Paul reports to the SEC






and 2 more companies
Open-market buys and sales
50 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jan 28, 2026 | MLAA | ↑ Buy | 510,000 | $10.00 | $5.1M | Through Mountain Lake Acquisition Sponso | Jan 30, 2026 (2d) |
| May 5, 2025 | AX | ↓ Sell | 30,000 | $68.09 | $2.0M | Direct | May 7, 2025 (2d) |
| Mar 10, 2023 | AX | ↑ Buy | 1,320 | $37.80 | $50K | Direct | Mar 13, 2023 (3d) |
| Aug 31, 2022 | AX | ↓ Sell | 4,977 | $42.47 | $211K | Direct | Sep 2, 2022 (2d) |
| Aug 1, 2022 | AX | ↓ Sell | 2,985 | $41.04 | $123K | Direct | Aug 3, 2022 (2d) |
| Nov 12, 2021 | AX | ↓ Sell | 39,923 | $59.42 | $2.4M | Direct | Nov 12, 2021 (0d) |
| Mar 10, 2020 | AX | ↑ Buy | 12,800 | $20.00 | $256K | Direct | Mar 11, 2020 (1d) |
| Mar 14, 2018 | ECPG | ↓ Sell | 18,775 | $44.16 | $829K | Direct | Mar 16, 2018 (2d) |
| Mar 14, 2018 | ECPG | ↓ Sell | 500 | $44.16 | $22K | PG Mountain Ventures LLC | Mar 16, 2018 (2d) |
| Feb 26, 2018 | ECPG | ↓ Sell | 18,773 | $41.88 | $786K | Direct | Feb 27, 2018 (1d) |
| Feb 26, 2018 | ECPG | ↓ Sell | 500 | $41.88 | $21K | PG Mountain Ventures LLC | Feb 27, 2018 (1d) |
| Jan 17, 2018 | ECPG | ↓ Sell | 18,773 | $40.82 | $766K | Direct | Jan 18, 2018 (1d) |
| Jan 17, 2018 | ECPG | ↓ Sell | 500 | $40.82 | $20K | PG Mountain Ventures LLC | Jan 18, 2018 (1d) |
| Dec 26, 2017 | ECPG | ↓ Sell | 37,546 | $42.43 | $1.6M | Direct | Dec 29, 2017 (3d) |
| Dec 26, 2017 | ECPG | ↓ Sell | 1,000 | $42.43 | $42K | PG Mountain Ventures LLC | Dec 29, 2017 (3d) |
| Aug 10, 2015 | BOFI | ↓ Sell | 12,204 | $129.99 | $1.6M | Direct | Aug 10, 2015 (0d) |
| Jun 8, 2015 | ECPG | ↑ Buy | 2,500 | $39.66 | $99K | PG Mountain Ventures LLC | Jun 9, 2015 (1d) |
| Nov 10, 2014 | ECPG | ↓ Sell10b5-1 | 33,334 | $45.03 | $1.5M | Direct | Nov 12, 2014 (2d) |
| Sep 8, 2014 | ECPG | ↓ Sell10b5-1 | 54,000 | $45.59 | $2.5M | Direct | Sep 10, 2014 (2d) |
| Jun 9, 2014 | ECPG | ↓ Sell10b5-1 | 36,000 | $45.13 | $1.6M | Direct | Jun 11, 2014 (2d) |
| Mar 10, 2014 | ECPG | ↓ Sell10b5-1 | 10,999 | $48.60 | $535K | Direct | Mar 11, 2014 (1d) |
| Feb 10, 2014 | ECPG | ↓ Sell10b5-1 | 11,000 | $48.56 | $534K | Direct | Feb 12, 2014 (2d) |
| Jan 13, 2014 | ECPG | ↓ Sell10b5-1 | 11,000 | $49.12 | $540K | Direct | Jan 15, 2014 (2d) |
| Aug 12, 2013 | BOFI | ↓ Sell | 23,800 | $66.55 | $1.6M | Direct | Aug 14, 2013 (2d) |
| Mar 14, 2013 | BOFI | ↓ Sell | 10,000 | $35.02 | $350K | Direct | Mar 18, 2013 (4d) |
| Dec 10, 2012 | ECPG | ↓ Sell | 11,804 | $26.93 | $318K | Direct | Dec 12, 2012 (2d) |
| Dec 7, 2012 | BOFI | ↓ Sell | 9,821 | $26.47 | $260K | Direct | Dec 11, 2012 (4d) |
| Dec 6, 2012 | BOFI | ↓ Sell | 2,695 | $26.51 | $71K | Direct | Dec 10, 2012 (4d) |
| Nov 5, 2012 | ECPG | ↓ Sell | 11,794 | $26.03 | $307K | Direct | Nov 7, 2012 (2d) |
| Oct 9, 2012 | ECPG | ↓ Sell | 11,799 | $27.73 | $327K | Direct | Oct 10, 2012 (1d) |
| Sep 10, 2012 | ECPG | ↓ Sell | 11,794 | $28.51 | $336K | Direct | Sep 12, 2012 (2d) |
| Aug 6, 2012 | ECPG | ↓ Sell | 11,794 | $29.98 | $354K | Direct | Aug 8, 2012 (2d) |
| Jul 9, 2012 | ECPG | ↓ Sell | 11,794 | $29.98 | $354K | Direct | Jul 11, 2012 (2d) |
| Oct 24, 2011 | ECPG | ↓ Sell | 10,644 | $27.00 | $287K | Direct | Oct 26, 2011 (2d) |
| Oct 12, 2011 | ECPG | ↓ Sell | 1,669 | $27.00 | $45K | Direct | Oct 14, 2011 (2d) |
| Aug 2, 2011 | ECPG | ↓ Sell | 6,156 | $24.26 | $149K | Direct | Aug 4, 2011 (2d) |
| Jul 5, 2011 | ECPG | ↓ Sell | 6,210 | $31.36 | $195K | Direct | Jul 7, 2011 (2d) |
| Jun 2, 2011 | ECPG | ↓ Sell | 6,156 | $32.73 | $201K | Direct | Jun 6, 2011 (4d) |
| May 2, 2011 | ECPG | ↓ Sell | 6,156 | $29.38 | $181K | Direct | May 4, 2011 (2d) |
| Apr 4, 2011 | ECPG | ↓ Sell | 6,156 | $25.43 | $157K | Direct | Apr 6, 2011 (2d) |
| Mar 2, 2011 | ECPG | ↓ Sell | 6,156 | $25.65 | $158K | Direct | Mar 4, 2011 (2d) |
| Feb 2, 2011 | ECPG | ↓ Sell | 6,098 | $23.55 | $144K | Direct | Feb 4, 2011 (2d) |
| Jan 4, 2011 | ECPG | ↓ Sell | 6,156 | $23.60 | $145K | Direct | Jan 5, 2011 (1d) |
| Dec 2, 2010 | ECPG | ↓ Sell | 6,156 | $20.00 | $123K | Direct | Dec 6, 2010 (4d) |
| Nov 2, 2010 | ECPG | ↓ Sell | 6,156 | $20.38 | $125K | Direct | Nov 3, 2010 (1d) |
| Mar 4, 2010 | BOFI | ↓ Sell | 4,000 | $13.70 | $55K | Direct | Mar 8, 2010 (4d) |
| Mar 13, 2009 | ECPG | ↑ Buy | 7,500 | $2.79 | $21K | Direct | Mar 17, 2009 (4d) |
| Aug 21, 2008 | BOFI | ↑ Buy | 4,600 | $6.02 | $28K | Direct | Aug 25, 2008 (4d) |
| Mar 31, 2008 | ECPG | ↑ Buy | 3,500 | $6.98 | $24K | Direct | Apr 1, 2008 (1d) |
| Mar 28, 2008 | BOFI | ↑ Buy | 4,000 | $6.15 | $25K | Direct | Mar 31, 2008 (3d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MLAA insiders
Open-market trades in the last 12 months
About Paul Grinberg's insider trades
Paul Grinberg is Chief Executive Officer at Mountain Lake Acquisition Corp. II (MLAA). Since Mar 28, 2008, Paul has reported 8 open-market purchases worth $5.6M and 42 sales worth $23.8M on SEC Form 4. In the last 12 months: 1 buy ($5.1M).
6 sales (30% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include option exercises (63 filings), shares withheld for taxes (42 filings), grants and awards (39 filings), shares returned to the company (8 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MLAA insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.