Who holds ticker verified against the SEC company list on 2026-09-10 — a reviewed name-and-class mapping row, never an inferred symbol. how tickers are mapped ↗

REGENERON PHARMACEUTICALS · common stock (filed as COM) · Q1 2026 · 22 members disclosed REGN ↗
13F filers reporting this class for the quarter ended 2026-03-31; 1–500 of 1,146 holders are listed, largest first
1,146
sum of the reported values across every holder; undisclosed values are left out, never counted as zero
$62.2B
holders whose share count rose or who opened the position (new + add), by shares
575
holders absent this quarter after holding last quarter — inferred from absence, not a sale record
92
FILING WINDOW OPEN
Q3 2026 filings are due by 2026-11-16 — figures for that quarter will change; missing filers are not zeros.

Holders — quarter ended 2026-03-31

by reported value · Δ shares vs 2025-12-31Holders rank by reported value. The change kind — new, add, trim or exit — is read from the share count against the prior quarter, never from the reported value.
13F holders of REGN ranked by reported value, 1–25 of 1,146 holders
#FilerReported valueSharesΔ sharesChange
1BlackRock, Inc.$6.9B8,947,735+206,465ADD
2VANGUARD CAPITAL MANAGEMENT LLC$5.1B6,654,913—NO PRIOR
3STATE STREET CORP$3.6B4,664,478+3,670ADD
4DODGE & COX$3.4B4,458,238−138,120TRIM
5JPMORGAN CHASE & CO$3.2B4,311,806+371,646ADD
6FRANKLIN RESOURCES INC$2.1B2,722,071+162,067ADD
7GEODE CAPITAL MANAGEMENT, LLC$2.0B2,607,732+88,192ADD
8Nuveen, LLC$1.6B2,065,064+54,547ADD
9LOOMIS SAYLES & CO L P$1.5B1,912,310−22,016TRIM
10WELLINGTON MANAGEMENT GROUP LLP$1.4B1,837,459+1,172,994ADD
11Invesco Ltd.$1.3B1,724,478+133,373ADD
12VANGUARD PORTFOLIO MANAGEMENT LLC$1.3B1,720,774—NO PRIOR
13FMR LLC$1.2B1,518,192−801,374TRIM
14Capital World Investors$1.1B1,419,000+20,997ADD
15MORGAN STANLEY$1.0B1,319,329−69,994TRIM
16AQR CAPITAL MANAGEMENT LLC$946M1,231,008+235,298ADD
17BANK OF AMERICA CORP /DE/$919M1,189,584+32,158ADD
18Amundi$780M1,009,798+217,892ADD
19NORTHERN TRUST CORP$728M941,941−2,992TRIM
20TWO SIGMA INVESTMENTS, LP$628M812,236+531,085ADD
21CHARLES SCHWAB INVESTMENT MANAGEMENT INC$622M804,508+26,507ADD
22Bank of New York Mellon Corp$591M765,411+1,169ADD
23Legal & General Group Plc$566M732,054−10,973TRIM
24UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$559M723,621−21,612TRIM
25DEUTSCHE BANK AG\$483M625,388−138,538TRIM
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 ↗
Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.

Congress ↔ notable managers · REGN

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

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

Use of congressional disclosure reports for commercial purposes, credit decisions or solicitation is restricted by 5 U.S.C. §13107(c).

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

A 13F is a quarterly, long-only snapshot filed up to 45 days late — not current holdings. what a 13F covers ↗

13F reports cover LONG positions in Section 13(f) securities (US exchange-traded equities plus reportable options, warrants, certain convertibles) held by managers with at least $100M in such securities — so managers below that threshold are absent entirely. No short positions, no cash, no non-13(f) assets — not a full portfolio, and not a census of institutional ownership.

Positions are quarter-end snapshots filed up to 45 days late — not current holdings: a position may have changed or closed since the quarter ended.

Values are the manager's stated market value at quarter-end in era-dependent units (whole dollars for form versions effective 2023-01-03 onward, thousands before), normalized here to whole dollars; each record notes its original unit.

Affiliated managers may report the same position, so one position can appear under more than one filer.

Positions under confidential treatment may be omitted until a later amendment discloses them.

These are disclosures, not investment advice.