2,075 insider sales worth $7.6B filed in December 2025, on SEC Form 4s. Scores as of Dec 31, 2025's close.

The biggest insider sales

December 2025

Sales2,075filed Sold$7.6Bin all Largest$975MULS

From SEC Form 4s, the newest filed Dec 22, 2025 · Insiders have 2 business days to file a trade

The 10 largest sales

Shares an insider sold on the market, largest first. Sales under a 10b5-1 plan set up in advance are left out, as the Insiders list leaves them out.

Stock	Insider	Quality Score	Trade	Traded
ULSUL Solutions:	ULSE Inc., 10% owner;	Quality Score7, Average;	Sell$975M;	traded Dec 5, 2025, filed Dec 9, 2025
MDLNMedline:	Mozart Aggregator II LP, 10% owner;	Quality Score2, Below Average;	Sell$382M;	traded Dec 18, 2025, filed Dec 22, 2025
KGSKodiak Gas Services:	Frontier TopCo Partnership, L.P., 10% owner;	Quality Score15, Excellent;	Sell$336M;	traded Dec 1, 2025, filed Dec 3, 2025
FANGDiamondback Energy:	SGF Fang Holdings, LP, 10% owner;	Quality Score6, Average;	Sell$305M;	traded Nov 28, 2025, filed Dec 2, 2025
MDLNMedline:	GIC Private Ltd, 10% owner;	Quality Score2, Below Average;	Sell$289M;	traded Dec 18, 2025, filed Dec 22, 2025
LGNLegence:	Blackstone EMA III L.L.C., 10% owner;	Quality Score1, Below Average;	Sell$234M;	traded Dec 16, 2025
RYANRyan Specialty:	Onex Corp, Director;	Quality Score2, Below Average;	Sell$226M;	traded Dec 5, 2025
ALHCAlignment Healthcare:	General Atlantic (ALN Hlth), L.P., 10% owner;	Quality Score15, Excellent;	Sell$206M;	traded Dec 12, 2025
SYMSymbotic:	SVF Sponsor III (DE) LLC, 10% owner;	Quality Score8, Average;	Sell$186M;	traded Dec 8, 2025
ASTSAST SpaceMobile:	American Tower Corp /Ma/, Insider;	Quality Score6, Average;	Sell$160M;	traded Dec 9, 2025, filed Dec 11, 2025

Download the month's trades (CSV)Download the table (PNG)Every insider buy and sale filed that month, each with its Form 4.

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The biggest insider sales, month by month

Show all 13 months

Use this page

Kept by Andrew Gomes, Breakaway's founder, from the SEC's Form 4 filings. Fixed on Jan 1, 2026; its figures no longer change.

Download the month's trades (CSV)Free to reuse with a link to this page.

How to cite

Breakaway, The biggest insider sales, December 2025, Jan 1, 2026, getbreakaway.com/insiders/biggest-sales/2025-12

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