Mountain Lake Acquisition Corp. (MLAC) Insider Ownership

Historic Insider Ownership Trends

Mountain Lake Acquisition's three largest insider shareholders as of May 30, 2026 are Lake Acquisition Sponsor Llc Mountain (TenPercentOwner, 495.00K shares), Jaime Vieser (Director, 25.00K shares), Douglas Horlick (Cfo, 12.50K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Paul Grinberg Chief Executive Officer 0 12,500 16 Dec, 2024
Douglas Horlick Cfo 0 12,500 16 Dec, 2024
Jaime Vieser - 0 25,000 16 Dec, 2024
Lake Acquisition Sponsor Llc Mountain - 495,000 0 16 Dec, 2024

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
16 Dec, 2024 Douglas Horlick Class A Ordinary Share, par value $0.0001 per share A 12,500 - 12,500 I P
16 Dec, 2024 Paul Grinberg Class A Ordinary Share, par value $0.0001 per share A 12,500 - 12,500 I P
16 Dec, 2024 Jaime Vieser Class A Ordinary Share, par value $0.0001 per share A 25,000 - 25,000 I P
16 Dec, 2024 Lake Acquisition Sponsor Llc Mountain Class A Ordinary Share, par value $0.0001 per share A 495,000 - 495,000 D P
16 Dec, 2024 Lake Acquisition Sponsor Llc Mountain Class A Ordinary Share, par value $0.0001 per share A 495,000 - 495,000 D P
12 Dec, 2024 Lake Acquisition Sponsor Llc Mountain Class B ordinary shares, par value $0.0001 per share A 359,375 - 7,546,875 D A
12 Dec, 2024 Douglas Horlick Class B ordinary shares, par value $0.0001 per share A 65,968 - 1,365,009 I A
12 Dec, 2024 Lake Acquisition Sponsor Llc Mountain Class B ordinary shares, par value $0.0001 per share A 359,375 - 7,546,875 D A
12 Dec, 2024 Jaime Vieser Class B ordinary shares, par value $0.0001 per share A 65,242 - 1,351,783 I A
12 Dec, 2024 Paul Grinberg Class B ordinary shares, par value $0.0001 per share A 65,968 - 1,365,009 I A
16 Dec, 2024 Lake Acquisition Sponsor Llc Mountain Class B ordinary shares, par value $0.0001 per share D 359,375 - 7,187,500 D D
16 Dec, 2024 Paul Grinberg Class B ordinary shares, par value $0.0001 per share D 65,968 - 1,299,041 I D
16 Dec, 2024 Douglas Horlick Class B ordinary shares, par value $0.0001 per share D 65,968 - 1,299,041 I D
16 Dec, 2024 Jaime Vieser Class B ordinary shares, par value $0.0001 per share D 65,242 - 1,286,541 I D
16 Dec, 2024 Lake Acquisition Sponsor Llc Mountain Class B ordinary shares, par value $0.0001 per share D 359,375 - 7,187,500 D D
16 Dec, 2024 Lake Acquisition Sponsor Llc Mountain Rights to receive Class A Ordinary Shares A 495,000 - 495,000 D P
16 Dec, 2024 Paul Grinberg Rights to receive Class A Ordinary Shares A 12,500 - 12,500 I P
16 Dec, 2024 Jaime Vieser Rights to receive Class A Ordinary Shares A 25,000 - 25,000 I P
16 Dec, 2024 Douglas Horlick Rights to receive Class A Ordinary Shares A 12,500 - 12,500 I P
16 Dec, 2024 Lake Acquisition Sponsor Llc Mountain Rights to receive Class A Ordinary Shares A 495,000 - 495,000 D P