How many insider purchases were disclosed in January 2026?

23 open-market insider purchases of $50K or more were disclosed across 13 companies by 13 distinct insiders in SEC Form 4 filings during January 2026, totaling $155.2M.

What was the biggest insider buy in January 2026?

The largest open-market insider purchase disclosed in January 2026 was $24.8M by MITSUI SUMITOMO INSURANCE CO LTD at BERKLEY W R CORP (WRB), filed with the SEC on Form 4.

Biggest Insider Buys: January 2026

The largest open-market insider purchases disclosed in SEC Form 4 filings, ranked by dollar value.

In January 2026, 23 open-market insider purchases of $50K or more were disclosed across 13 companies in SEC Form 4 filings, totaling $155.2M. The largest single purchase was $24.8M by MITSUI SUMITOMO INSURANCE CO LTD at BERKLEY W R CORP (WRB).

← All monthly rankings

Largest purchases · January 2026

							Source
WRB	MITSUI SUMITOMO INSURANCE CO LTD	10% Owner	Purchase	370,000	$24.8M	Jan 28	SEC ↗
WRB	MITSUI SUMITOMO INSURANCE CO LTD	10% Owner	Purchase	350,000	$23.6M	Jan 28	SEC ↗
THM	PAULSON & CO. INC.	10% Owner	Purchase	9,813,650	$21.8M	Jan 30	SEC ↗
WRB	MITSUI SUMITOMO INSURANCE CO LTD	10% Owner	Purchase	308,931	$20.9M	Jan 28	SEC ↗
WRB	MITSUI SUMITOMO INSURANCE CO LTD	10% Owner	Purchase	290,000	$19.8M	Jan 30	SEC ↗
WRB	MITSUI SUMITOMO INSURANCE CO LTD	10% Owner	Purchase	195,000	$13.3M	Jan 30	SEC ↗
UA	WATSA V PREM ET AL	10% Owner	Purchase	1,528,986	$9.5M	Jan 29	SEC ↗
HLXC	Chen Bihua	Chairperson and CEO	Purchase	800,000	$8.0M	Jan 28	SEC ↗
UA	WATSA V PREM ET AL	10% Owner	Purchase	1,112,119	$6.9M	Jan 29	SEC ↗
THM	PAULSON & CO. INC.	10% Owner	Purchase	1,501,982	$3.3M	Jan 30	SEC ↗
EMPD	ATG Capital Opportunities Fund LP	10% Owner	Purchase	190,971	$937K	Jan 30	SEC ↗
EMPD	ATG Capital Opportunities Fund LP	10% Owner	Purchase	123,208	$627K	Jan 30	SEC ↗
EMPD	ATG Capital Opportunities Fund LP	10% Owner	Purchase	114,447	$552K	Jan 30	SEC ↗
WS	Kelly Scott J	Director	Purchase	7,000	$274K	Jan 29	SEC ↗
NBBK	Elliott Mary Susan	Director	Purchase	10,000	$187K	Jan 30	SEC ↗
NWFL	Carroll Joseph W	Director	Purchase	4,000	$113K	Jan 29	SEC ↗
CDTX	Stein Jeffrey	President & CEO	Purchase	2,500	$100K	Jan 7	SEC ↗
LOB	Stasiowska Ewa Maria	Chief Risk Officer	Purchase	2,595.231	$100K	Jan 28	SEC ↗
CDTX	Stein Jeffrey	President & CEO	Purchase	645	$100K	Jan 7	SEC ↗
CDTX	Stein Jeffrey	President & CEO	Purchase	750	$89K	Jan 7	SEC ↗
Q	Green Byron	Director	Purchase	1,000	$79K	Jan 28	SEC ↗
OTF	Bissonnette Erik	President	Purchase	5,000	$74K	Jan 30	SEC ↗
AGL	Wulf John William	Director	Purchase	81,000	$51K	Jan 30	SEC ↗