401(k) · DOL Form 5500 · 2023

Regeneron Pharmaceuticals, Inc. 401(k) Plan

Data updated 2026-08-11

$2.2B
Total assets: 9,850
Participants: 99th
Percentile by assets: $228,194
Avg per participant

Official DOL plan name: Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan · Sponsored by Regeneron Pharmaceuticals, Inc. · New York · Manufacturing

$2.2B in assets, 9,850 participants

Regeneron Pharmaceuticals, Inc.'s Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan reported $2.2B in total assets and 9,850 participants in its 2023 DOL Form 5500 filing, ranking in the 99th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

99th percentile by assets (of 127,072 plans)
#18,506 in Manufacturing (18,722 peers)

Coverage in New York

Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan covers 9,850 participants in New York, 12x the typical New York plan (state average ~798 per filing). Assets: $2.2B.

$2.2B
total plan assets (2023 EOY): 9,850
covered participants: 99th
percentile by assets (of 127,072 plans): $228,194
avg assets per participant

Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan reported net income rose from -$20M in the plan year 2022 filing to $560M in the plan year 2023 filing.
Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan end-of-year assets rose from $1.7B in the plan year 2022 filing to $2.2B in the plan year 2023 filing.
Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan reported participants rose from 8,564 in the plan year 2022 filing to 9,850 in the plan year 2023 filing.

See the national 2022→2023 release diff →

State

New York

Industry

Manufacturing

Participants vs New York filers

In New York, the average filing covers about 798 participants across 9,061 plans. Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan reports 9,850 participants - 12x that state average ($2.2B EOY assets).

New York filing particulars

Total Assets (Beginning of Year)	$1.7B
Net Assets (End of Year)	$2.2B
Net Income	$560M
Employer EIN	133444607
Plan Effective Date	1993-01-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Regeneron Pharmaceuticals, Inc.)

Total plan assets by year, all Regeneron Pharmaceuticals, Inc. plans on file

Year	Plans	Participants	Total Assets
2022	1	8,564	$1.7B
2023	1	9,850	$2.2B
2024	1	10,876	$2.6B

Nearby 401(k) Plans in New York

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan vs. nearby 401(k) plans in New York, assets vs. participants

IBM 401 (K) Plus Plan $57.4B · 54,912
Pfizer Savings Plan $19.6B · 30,033
Morgan Stanley 401(k) Plan $19.2B · 55,363
The Pepsico Savings Plan $13.7B · 133,597
The Goldman Sachs 401(k) Plan $11.4B · 24,866

Compare Regeneron Pharmaceuticals, Inc. 401(k) S… side-by-side with 3 peers →

Scale composition for Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan

Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan reports $2.2B in end-of-year assets across 9,850 participants (0.018% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.010% of 93,925,755 covered participants) - about $228,194 per participant (1.7x the national average assets-per-participant) . Net income for plan year 2023 was $560M.

This plan identity (EIN 133444607, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.7B to $2.6B (+54.4%) while covered participants moved from 8,564 to 10,876 . Single-year sparse filers cannot show that trail.

Plan year	Participants	EOY assets	Filing
2022	8,564	$1.7B	Open filing
2023	9,850	$2.2B	This page
2024 · index core	10,876	$2.6B	Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan (401(k), $2.6B, 10,876 participants)

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan by total assets, not by location.

Enterprise 401(k) Plan (TX) $2.3B · 7,369
Old Dominion 401(k) Retirement Plan (NC) $2.3B · 24,400
Union Pacific Agreement Employee 401(k) Retirement Thrift Plan (NE) $2.3B · 27,770
Wellspan 403(b) Retirement Savings Plan (PA) $2.3B · 21,201

Frequently Asked Questions

How did Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan assets move in 2023? ▼

Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan surged - up 33.2% during 2023, from $1.7B to $2.2B. Reported net income was $560M.

How have Regeneron Pharmaceuticals, Inc. plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Regeneron Pharmaceuticals, Inc.'s sponsor-wide assets grew 54.4%, from $1.7B to $2.6B.

Where does Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan rank by assets among Form 5500 filers? ▼

Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan ranks in the 99th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).

Which 401(k) plans are similar in size to Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan? ▼

Among 401(k) plans in other states, the closest by assets is Enterprise 401(k) Plan in TX ($2.3B, 7,369 participants).

Next read for Regeneron Pharmaceuticals, Inc. 401(k) S…

Filing takeaways

Ways to act on Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan's numbers.

By total assets, Regeneron Pharmaceuticals, Inc. 401(k) Savings Plan ranks among the largest 1% of all filed plans. See the largest plans
Compare it side-by-side against 3 similar 401(k) plans in New York. Compare plans
Regeneron Pharmaceuticals, Inc.'s sponsor-wide assets have grown 54.4% since 2022 across 3 plan years on file. More Manufacturing plans

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 133444607.