United States Investment Banking & Investment Services

Andersen Group Inc (ANDG)

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Over the last 90 days, Andersen Group Inc. has seen a net insider buy of $84,785.94 from one insider. This follows a period of significant buying activity in December 2025, totaling over $3.1 million across multiple transactions. The stock has experienced substantial growth, up over 60% in the past 90 days and trading near its 52-week high.

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Ticker: ANDG Exchange: NYS

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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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Trades

Gunderson Robert V JR

1 purchase — total 100,000 USD

Buy 20 May 2026

Value US$1,488,961.25 | Price 459.56 | Shares 62,494

Nicolai John

1 purchase — total 151,600 USD

Buy 18 Dec 2025

Value US$943,200.25 | Price 202.89 | Shares 32,430

JOYCE JOHN R

1 purchase — total 166,752 USD

Buy 18 Dec 2025

Value US$166,752.00 | Price 16.00 | Shares 10,422

OLSON RONALD L

1 purchase — total 126,336 USD

Buy 18 Dec 2025

Value US$126,336.00 | Price 16.00 | Shares 7,896

Gunderson Robert V JR

1 purchase — total 202,128 USD

Buy 18 Dec 2025

Value US$202,128.00 | Price 16.00 | Shares 12,633

Durable Capital Partners LP

2 purchases — total 7,454,060 USD

Buy 17 Dec 2025

Value US$2,306,559.60 | Price 21.36 | Shares 107,985

Buy 17 Dec 2025

Value US$5,147,500.00 | Price 20.59 | Shares 250,000

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	B/S Transaction type	Insider and/or position	Nb. shares Price Value	Number of shares	Price	Value
2026-05-22	2026-05-20	B Purchase	Gunderson Robert V JR Non-Executive Director	62,494 -39.9% 459.56 US$1,488,961	62,494 -39.9%	459.56	US$1,488,961
2025-12-22	2025-12-18	B Purchase	Nicolai John Non-Executive Director	32,430 -42.6% 202.89 US$943,200	32,430 -42.6%	202.89	US$943,200
2025-12-22	2025-12-18	B Purchase	JOYCE JOHN R Non-Executive Director	64,737 -2.9% 231.52 US$674,759	64,737 -2.9%	231.52	US$674,759
2025-12-22	2025-12-18	B Purchase	3.3 OLSON RONALD L Non-Executive Director	7,896 +inf% 16.00 US$126,336	7,896 +inf%	16.00	US$126,336
2025-12-22	2025-12-18	B Purchase	Gunderson Robert V JR Non-Executive Director	12,633 +inf% 16.00 US$202,128	12,633 +inf%	16.00	US$202,128
2025-12-19	2025-12-17	B Purchase	2.6 Durable Capital Partners LP Large shareholder	107,985 +6.9% 21.36 US$2,306,560	107,985 +6.9%	21.36	US$2,306,560
2025-12-19	2025-12-17	B Purchase	2.6 Durable Capital Partners LP Large shareholder	250,000 +19.0% 20.59 US$5,147,500	250,000 +19.0%	20.59	US$5,147,500