REGN Insider Trading Activity

Transactions disclosed by company insiders to the SEC on Form 4, most recent first.

InsiderRoleDateSharesValue
Zoghbi Huda Y Director 2026-08-10 800 $301,352
Zoghbi Huda Y Director 2026-08-10 800 $640,000
Guarini Kathryn Director 2026-08-10 400 $287,748
Guarini Kathryn Director 2026-08-10 400 $320,000

How Institutional Funds Moved on REGN

Position changes disclosed in SEC Form 13F filings. These report a quarterly snapshot, not exact trade dates.

FundChangeQuarter
RENAISSANCE TECHNOLOGIES LLC RENAISSANCE TECHNOLOGIES LLC increased this position by 79% ($51,613,897 -> $92,422,346). 2026-06-30
NORGES BANK NORGES BANK opened a new position worth $731,292,700. 2026-06-30
NORDEA INVESTMENT MANAGEMENT AB NORDEA INVESTMENT MANAGEMENT AB increased this position by 160% ($38,501,577 -> $100,247,789). 2026-06-30
FIRST TRUST ADVISORS LP FIRST TRUST ADVISORS LP increased this position by 27% ($267,994,072 -> $341,158,711). 2026-06-30
BANK OF NOVA SCOTIA BANK OF NOVA SCOTIA increased this position by 50% ($75,347,853 -> $113,300,959). 2026-06-30
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP ARROWSTREET CAPITAL, LIMITED PARTNERSHIP increased this position by 85% ($132,562,617 -> $245,478,345). 2026-06-30
Mariner, LLC Mariner, LLC increased this position by 3479% ($1,722,246 -> $61,632,002). 2026-06-30
Carmignac Gestion Carmignac Gestion increased this position by 195% ($38,575,146 -> $113,826,706). 2026-06-30

Which Funds Hold REGN

Largest reported positions as of 2026-06-30.

FundValueShares
VANGUARD CAPITAL MANAGEMENT LLC $4,133,919,926 6,629,759
Dodge & Cox $3,037,348,765 4,871,137
VANGUARD PORTFOLIO MANAGEMENT LLC $1,979,934,668 3,175,313
GEODE CAPITAL MANAGEMENT, LLC $1,427,303,015 2,297,074
LOOMIS SAYLES & CO L P $1,014,501,372 1,627,003
WELLINGTON MANAGEMENT GROUP LLP $763,126,911 1,223,862
NORGES BANK $731,292,700 1,172,808
Capital World Investors $508,138,359 814,925
TWO SIGMA INVESTMENTS, LP $409,119,559 656,124
GOLDMAN SACHS GROUP INC $392,576,914 629,594

Data compiled from public SEC filings. This is informational reporting, not investment advice.

Renaissance Technologies LLC: 13F Portfolio Moves Tracked Quarterly

Summary of Renaissance Technologies LLC portfolio increases for the quarter ending 2026-06-30, highlighting positions like Intel, AutoZone, McKesson, and Five Below.

Quarter Ending 2026-06-30 During the quarter ending 2026-06-30, Renaissance Technologies LLC filed a 13F showing broad-based increases across a wide range of existing holdings, with no reductions listed among the disclosed moves. The most dramatic percentage changes came from smaller starting positions that were scaled up substantially, including Five Below Inc (FIVE), up 16855% to … Read more