Cwm, Llc reports 9.63% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

Regeneron Pharmaceuticals, Inc.

US ˙ NasdaqGS ˙ US75886F1075

Security	REGN / Regeneron Pharmaceuticals, Inc.
Institution	Cwm, Llc
Latest Disclosed Ownership	66,400 shares
Latest Disclosed Value	$ 51,303,491

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 66,400 shares of Regeneron Pharmaceuticals, Inc. (US:REGN) valued at $51,303,296 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 60,569 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 9.63% during the quarter. The current value of the position is $41,098,280 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-14	2026-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	66,400	5,831	9.63	51,303	111,428.26	0.1334
2026-01-26	2025-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	60,569	7,163	13.41	47	53.33	0.1267
2025-10-15	2025-09-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	53,406	17,900	50.41	30	66.67	0.0903
2025-07-25	2025-06-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	35,506	31,425	770.03	19	800.00	0.0657
2025-05-01	2025-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	4,081	2,007	96.77	3	100.00	0.0103
2025-02-04	2024-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,074	-198	-8.71	1	-50.00	0.0061
2024-10-08	2024-09-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,272	25	1.11	2	0.00	0.0103
2024-07-10	2024-06-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,247	49	2.23	2	0.00	0.0111
2024-04-05	2024-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,198	-240	-9.84	2	0.00	0.0103
2024-02-01	2023-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,438	-256	-9.50	2	0.00	0.0115
2023-10-11	2023-09-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,694	129	5.03	2	100.00	0.0136
2023-08-03	2023-06-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,565	-115	-4.29	2	-50.00	0.0114
2023-05-01	2023-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,680	9	0.34	2	100.00	0.0149
2023-02-01	2022-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,671	18	0.68	2	-99.95	0.0142
2022-10-27	2022-09-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,653	194	7.89	1,828	25.72	0.0145
2022-07-28	2022-06-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,459	-248	-9.16	1,454	-23.11	0.0113
2022-04-21	2022-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,707	6	0.22	1,891	10.84	0.0134
2022-01-31	2021-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	2,701	-1,445	-34.85	1,706	-26.34	0.0120
2021-09-15	2021-06-30	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0	0.00	2,316	0.00	0.0185
2021-07-29	2021-06-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0		2,316		0.0185
2021-09-15	2021-03-31	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0	0.00	2,316	0.00	0.0185
2021-04-27	2021-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	4,941	795		2,338		0.0206
2021-09-15	2020-12-31	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0	0.00	2,316	0.00	0.0185
2021-01-27	2020-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	127	-4,019		61		0.0006
2021-09-15	2020-09-30	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0	0.00	2,316	0.00	0.0185
2020-10-19	2020-09-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	159	-3,987		89		0.0010
2021-09-15	2020-06-30	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0	0.00	2,316	0.00	0.0185
2020-07-22	2020-06-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	269	-3,877		168		0.0020
2021-09-15	2020-03-31	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0	0.00	2,316	0.00	0.0185
2020-04-28	2020-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	756	-3,390		369		0.0055
2021-09-14	2019-12-31	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0	0.00	2,316	0.00	0.0185
2020-01-27	2019-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	230	-3,916		86		0.0011
2021-09-14	2019-09-30	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0	0.00	2,316	0.00	0.0185
2019-10-22	2019-09-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	225	-3,921		62		0.0009
2021-09-14	2019-06-30	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	0	0.00	2,316	0.00	0.0185
2019-07-31	2019-06-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	518	-3,628		162		0.0027
2021-09-02	2019-03-31	13F/A-1	REGENERON PHARMACEUTICALS	COM	75886F107	4,146	4,117	14,196.55	2,316	20,954.55	0.0185
2019-04-22	2019-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	22	-7		9		0.0002
2019-01-25	2018-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	29	18	163.64	11	175.00	0.0003
2018-10-29	2018-09-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	11	-13	-54.17	4	-50.00	0.0001
2018-07-31	2018-06-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	24	-24	-50.00	8	-52.94	0.0003
2018-04-26	2018-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	48	30	166.67	17	142.86	0.0007
2018-01-16	2017-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	18	-15	-45.45	7	-53.33	0.0003
2017-10-16	2017-09-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	33	28	560.00	15	650.00	0.0007
2017-07-17	2017-06-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	5	5		2		0.0001
2017-04-17	2017-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	0	-17	-100.00	0	-100.00
2017-01-19	2016-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	17	17		6		0.0004
2016-04-18	2016-03-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	0	0		0		0.0000
2016-02-01	2015-12-31	13F	REGENERON PHARMACEUTICALS	COM	75886F107	0	-28	-100.00	0	-100.00
2015-10-30	2015-09-30	13F	REGENERON PHARMACEUTICALS	COM	75886F107	28	28		13		0.0013

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.