REGN — REGENERON PHARMACEUTICALS, INC.Today's name, from the SEC's present-day ticker list — a present-day mapping, not the name as of each filing.

Congress trades
82
all time
Members · 12m
3
3 buys · 1 sells · by trade date
Latest filing
07-21
2026-07-21
Rows filed past the STOCK Act's 45-day window, stated on the row, never editorialised; both dates and the receipt stay on every row.
8
13F holders
1,146
top 500 listed · 2026-03-31
Congress: statutory ranges, filed up to 45 days after the trade · 13F: quarter-end snapshots, filed up to 45 days lateras of 2026-10-29
Congress 82Institutional 500

Congress · disclosure timeline

By trade date · 24 months · 18 rows ▲ buy, ▼ sell; height = lower bound (log scale). Trade date, not filing date — the filing lag is in the table below.

18 dated disclosures in the window, placed by trade date; magnitudes are the disclosed lower bounds, against gridlines at $15K, $250K, $5M.

Members active in REGN

12 months · most active first Rows = number of disclosures, not dollars. Net = lower bound of the net range. Committees as of each member's latest trade in the window (roster snapshot 2026-10-29).
Members disclosing REGN in the trailing 12 months
MemberRowsNet disclosed flow for this ticker: purchases minus sales, computed as a net range on the disclosed amounts. A lower bound is provable, never a point.Number of committees the member sat on as of their latest trade date in the window, from the cc0-legislators roster snapshot. Context, never an allegation; jurisdiction overlap needs the sector join.
Gilbert Ray Cisneros, Jr. D–CA-312−$14.0K to $14.0K2
Alan Armstrong R–OK1$1.0K to $15.0K2
Julia Letlow R–LA-51$1.0K to $15.0K2

3 members

Congressional disclosures

Newest filed firstAll 82 rows ↗
Latest congressional filings mentioning REGN
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2026-07-21Alan Armstrong R–OKBUYTraded 03-27 LATE·116d$1K–$15K
2026-06-08Gilbert Ray Cisneros, Jr. D–CA-31SELLTraded 05-15 +24d$1K–$15K
2026-03-12Julia Letlow R–LA-5BUYTraded 02-12 +28d$1K–$15K
2025-12-15Gilbert Ray Cisneros, Jr. D–CA-31BUYTraded 11-18 +27d$1K–$15K
2025-06-09Robert P. Bresnahan, Jr. R–PA-8BUYTraded 05-15 +25d$1K–$15K
2025-05-24Byron Donalds R–FL-19SELLTraded 04-10 +44d$1K–$15K
2025-05-24Byron Donalds R–FL-19SELL SP (spouse-owned)Traded 04-10 +44d$1K–$15K
2025-05-14Julie Johnson D–TX-32SELL JT (jointly owned)Traded 04-01 +43d$1K–$15K
2025-05-08Robert P. Bresnahan, Jr. R–PA-8SELLTraded 04-08 +30d$1K–$15K
2025-05-08Jefferson Shreve R–IN-6SELLTraded 04-07 +31d$15K–$50K

13F holders · Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt. · longs only

All holders ↗
Top institutional holders of REGN for quarter 2026-03-31, 1–25 of 1,146 holders
#FilerValueSecuritiesFlagsderived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date (the full holders view shows them), but no document links — the EDGAR link opens the filer's 13F list·§
1BlackRock, Inc.$6.9B1
derived ·§ EDGAR ↗
2VANGUARD CAPITAL MANAGEMENT LLC$5.1B1
derived ·§ EDGAR ↗
3STATE STREET CORP$3.6B1
derived ·§ EDGAR ↗
4DODGE & COX$3.4B1
derived ·§ EDGAR ↗
5JPMORGAN CHASE & CO$3.2B1
derived ·§ EDGAR ↗
6FRANKLIN RESOURCES INC$2.1B1
derived ·§ EDGAR ↗
7GEODE CAPITAL MANAGEMENT, LLC$2.0B1
derived ·§ EDGAR ↗
8Nuveen, LLC$1.6B1
derived ·§ EDGAR ↗
9LOOMIS SAYLES & CO L P$1.5B1
derived ·§ EDGAR ↗
10WELLINGTON MANAGEMENT GROUP LLP$1.4B1
derived ·§ EDGAR ↗
11Invesco Ltd.$1.3B1
derived ·§ EDGAR ↗
12VANGUARD PORTFOLIO MANAGEMENT LLC$1.3B1
derived ·§ EDGAR ↗
13FMR LLC$1.2B1
derived ·§ EDGAR ↗
14Capital World Investors$1.1B1
derived ·§ EDGAR ↗
15MORGAN STANLEY$1.0B1
derived ·§ EDGAR ↗
16AQR CAPITAL MANAGEMENT LLC$946M1
derived ·§ EDGAR ↗
17BANK OF AMERICA CORP /DE/$919M1
derived ·§ EDGAR ↗
18Amundi$780M1
derived ·§ EDGAR ↗
19NORTHERN TRUST CORP$728M1
derived ·§ EDGAR ↗
20TWO SIGMA INVESTMENTS, LP$628M1
derived ·§ EDGAR ↗
21CHARLES SCHWAB INVESTMENT MANAGEMENT INC$622M1
derived ·§ EDGAR ↗
22Bank of New York Mellon Corp$591M1
derived ·§ EDGAR ↗
23Legal & General Group Plc$566M1
derived ·§ EDGAR ↗
24UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$559M1
derived ·§ EDGAR ↗
25DEUTSCHE BANK AG\$483M1
derived ·§ EDGAR ↗
Show the top 500 of 1,146 holders
Truncated by Public Filings. Top 500 of 1,146 holders shown; the rest are on EDGAR. Method ↗

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Congress ↔ notable managers · REGN

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Notable managers · quarter ended 2026-03-31

Adding
1 Gotham Asset Management $64.0M held
Trimming
1 Bridgewater Associates $17.6M held

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · REGENERON PHARMACEUTICALS

Merged timeline of congressional filings and notable-manager moves on REGN
DateWhoChangeSize
2026-05-15Gotham Asset Management 13FADD+2,575 sh
2026-05-15Bridgewater Associates 13FTRIM−50,021 sh

2 newest, by filing date · 13F rows are quarter-end snapshots, not trades

Congress vs filers

12 months
Congress net (rows)3 buy / 1 sell
Congress net ($ bound)−$12.0K to $44.0K
Filersnot computedThe filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.