Listed

Sanofi

An insider at 4 companies in coverage, as reported on Form 4. SEC CIK 1121404. Latest Form 4 filed Aug 12, 2026.

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Roles

As stated on the filings: the relationship to the company and any officer title.

CompanyRoleTransactionsFirstLatest
Latigo Biotherapeutics, Inc.LTGO10% owner42026-08-102026-08-10
Regeneron Pharmaceuticals, Inc.REGN10% owner5512010-10-132020-06-09
Fulcrum Therapeutics, Inc.FULC10% owner32019-07-222019-07-22
Alnylam Pharmaceuticals, Inc.ALNY10% owner62015-01-222017-05-31

Transactions: 564

Every transaction reported, newest first, including grants, exercises and derivative securities. Purchases and sales (codes P and S) are open-market trades. The reported price is as stated on the form.

What these mean: insiders, Form 4, transaction codes, Rule 10b5-1 plans.

DateCompanyTransactionSharesReported priceValueFiling
2026-08-10Latigo Biotherapeutics, Inc.10% ownerConversionConvertible Promissory Note177,978not reportednot reportedForm 4
2026-08-10Latigo Biotherapeutics, Inc.10% ownerConversionSeries B Preferred Stock494,800not reportednot reportedForm 4
2026-08-10Latigo Biotherapeutics, Inc.10% ownerConversion177,978not reportednot reportedForm 4
2026-08-10Latigo Biotherapeutics, Inc.10% ownerConversion494,800not reportednot reportedForm 4
2020-06-09Regeneron Pharmaceuticals, Inc.10% owner Sale120,234$597.48$71.8mForm 4
2020-05-29Regeneron Pharmaceuticals, Inc.10% owner Sale2,399,552$509.85$1.22bnForm 4
2020-05-29Regeneron Pharmaceuticals, Inc.10% owner Sale20,421,899$509.85$10.41bnForm 4
2020-03-09Regeneron Pharmaceuticals, Inc.10% owner Sale128,914$489.6532$63.1mForm 4
2019-09-10Regeneron Pharmaceuticals, Inc.10% owner Sale172,904$281.1491$48.6mForm 4
2019-07-22Fulcrum Therapeutics, Inc.10% ownerConversionSeries B Preferred Stock (par value $0.001)3,250,000$0.00$0Form 4
2019-07-22Fulcrum Therapeutics, Inc.10% owner Purchase93,750$16.00$1.5mForm 4
2019-07-22Fulcrum Therapeutics, Inc.10% ownerConversion464,285$0.00$0Form 4
2019-03-08Regeneron Pharmaceuticals, Inc.10% owner Sale131,115$412.1673$54.0mForm 4
2018-09-06Regeneron Pharmaceuticals, Inc.10% owner Sale104,552$406.6804$42.5mForm 4
2018-06-08Regeneron Pharmaceuticals, Inc.10% owner Sale121,601$309.3057$37.6mForm 4
2017-08-25Regeneron Pharmaceuticals, Inc.10% owner Purchase2,557$487.0108$1.2mForm 4
2017-08-25Regeneron Pharmaceuticals, Inc.10% owner Purchase2,681$485.9939$1.3mForm 4
2017-08-25Regeneron Pharmaceuticals, Inc.10% owner Purchase5,723$485.2798$2.8mForm 4
2017-08-25Regeneron Pharmaceuticals, Inc.10% owner Purchase2,000$484.21$968.4kForm 4
2017-08-25Regeneron Pharmaceuticals, Inc.10% owner Purchase4,485$482.8734$2.2mForm 4
2017-08-25Regeneron Pharmaceuticals, Inc.10% owner Purchase1,302$481.6284$627.1kForm 4
2017-08-25Regeneron Pharmaceuticals, Inc.10% owner Purchase21,360$480.7489$10.3mForm 4
2017-08-25Regeneron Pharmaceuticals, Inc.10% owner Purchase28,586$479.9313$13.7mForm 4
2017-08-25Regeneron Pharmaceuticals, Inc.10% owner Purchase3,684$479.1912$1.8mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase6,960$488.574$3.4mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase8,860$487.5532$4.3mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase6,920$486.6264$3.4mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase5,724$485.5536$2.8mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase8,982$484.2671$4.3mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase5,016$483.3125$2.4mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase1,700$481.9565$819.3kForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase17,756$481.3267$8.5mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase13,638$480.3643$6.6mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase8,273$479.2349$4.0mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase3,326$478.1171$1.6mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase10,929$477.4224$5.2mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase5,103$475.9319$2.4mForm 4
2017-08-24Regeneron Pharmaceuticals, Inc.10% owner Purchase2,633$474.8578$1.3mForm 4
2017-08-23Regeneron Pharmaceuticals, Inc.10% owner Purchase13,037$480.3731$6.3mForm 4
2017-08-23Regeneron Pharmaceuticals, Inc.10% owner Purchase23,872$479.451$11.4mForm 4
2017-08-23Regeneron Pharmaceuticals, Inc.10% owner Purchase12,186$478.3422$5.8mForm 4
2017-08-23Regeneron Pharmaceuticals, Inc.10% owner Purchase9,600$477.3484$4.6mForm 4
2017-08-23Regeneron Pharmaceuticals, Inc.10% owner Purchase1,900$475.9732$904.3kForm 4
2017-06-02Regeneron Pharmaceuticals, Inc.10% owner Purchase4,708$484.0367$2.3mForm 4
2017-06-02Regeneron Pharmaceuticals, Inc.10% owner Purchase18,311$483.0403$8.8mForm 4
2017-06-02Regeneron Pharmaceuticals, Inc.10% owner Purchase23,490$482.0789$11.3mForm 4
2017-06-02Regeneron Pharmaceuticals, Inc.10% owner Purchase15,197$481.1292$7.3mForm 4
2017-06-02Regeneron Pharmaceuticals, Inc.10% owner Purchase12,710$480.1698$6.1mForm 4
2017-06-02Regeneron Pharmaceuticals, Inc.10% owner Purchase6,507$478.9431$3.1mForm 4
2017-06-02Regeneron Pharmaceuticals, Inc.10% owner Purchase6,312$476.1472$3.0mForm 4

Source: SEC EDGAR, Forms 4. Last ingested by Listed: Oct 30, 2026, 19:33 ET. Listed shows no prices and gives no investment advice.