American Century Companies’s Regeneron Pharmaceuticals REGN Stock Holding History

American Century Companies’s Portfolio REGN Stock Details REGN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$38.8M	Sell	62,209 -499,888	-89%	-$340M	0.02%	971
2026 Q1	$434M	Buy	562,097 +10,610	+2%	+$8.12M	0.22%	48
2025 Q4	$426M	Sell	551,487 -109,108	-17%	-$74.1M	0.21%	58
2025 Q3	$371M	Buy	660,595 +23,943	+4%	+$13.5M	0.19%	72
2025 Q2	$334M	Sell	636,652 -85,815	-12%	-$47.9M	0.18%	80
2025 Q1	$458M	Buy	722,467 +14,921	+2%	+$10.3M	0.28%	42
2024 Q4	$504M	Sell	707,546 -30,949	-4%	-$26M	0.29%	36
2024 Q3	$776M	Sell	738,495 -87,337	-11%	-$97.2M	0.45%	25
2024 Q2	$868M	Sell	825,832 -56,073	-6%	-$54.4M	0.53%	21
2024 Q1	$849M	Sell	881,905 -49,423	-5%	-$47M	0.53%	21
2023 Q4	$818M	Buy	931,328 +14,610	+2%	+$12M	0.56%	19
2023 Q3	$754M	Buy	916,718 +30,050	+3%	+$23.6M	0.58%	16
2023 Q2	$637M	Sell	886,668 -75,042	-8%	-$57.9M	0.48%	24
2023 Q1	$783M	Sell	961,710 -140,292	-13%	-$106M	0.62%	14
2022 Q4	$795M	Sell	1,102,002 -76,069	-6%	-$56.1M	0.65%	16
2022 Q3	$812M	Buy	1,178,071 +1,345	+0.1%	+$847K	0.71%	12
2022 Q2	$696M	Buy	1,176,726 +74,420	+7%	+$48.4M	0.57%	18
2022 Q1	$770M	Buy	1,102,306 +37,370	+4%	+$23.6M	0.53%	23
2021 Q4	$673M	Sell	1,064,936 -109,728	-9%	-$67.5M	0.43%	39
2021 Q3	$711M	Buy	1,174,664 +19,591	+2%	+$12.2M	0.49%	34
2021 Q2	$645M	Buy	1,155,073 +50,312	+5%	+$25.5M	0.44%	38
2021 Q1	$523M	Buy	1,104,761 +178,725	+19%	+$87M	0.38%	52
2020 Q4	$447M	Sell	926,036 -3,768	-0.4%	-$2.03M	0.35%	61
2020 Q3	$520M	Buy	929,804 +31,333	+3%	+$19M	0.46%	38
2020 Q2	$560M	Sell	898,471 -74,292	-8%	-$42.2M	0.53%	30
2020 Q1	$475M	Sell	972,763 -36,672	-4%	-$15.1M	0.57%	29
2019 Q4	$379M	Buy	1,009,435 +65,515	+7%	+$22M	0.36%	67
2019 Q3	$262M	Sell	943,920 -88,094	-9%	-$26.1M	0.26%	113
2019 Q2	$323M	Sell	1,032,014 -9,030	-0.9%	-$3.01M	0.32%	81
2019 Q1	$427M	Buy	1,041,044 +37,573	+4%	+$15.5M	0.43%	49
2018 Q4	$375M	Buy	1,003,471 +142,779	+17%	+$52.3M	0.43%	48
2018 Q3	$348M	Sell	860,692 -51,436	-6%	-$19.6M	0.34%	72
2018 Q2	$315M	Sell	912,128 -45,061	-5%	-$14.1M	0.32%	75
2018 Q1	$330M	Buy	957,189 +79,602	+9%	+$27.7M	0.33%	76
2017 Q4	$330M	Sell	877,587 -39,967	-4%	-$16.2M	0.33%	77
2017 Q3	$410M	Buy	917,554 +20,218	+2%	+$9.62M	0.42%	52
2017 Q2	$441M	Buy	897,336 +49,143	+6%	+$21.5M	0.46%	43
2017 Q1	$329M	Buy	848,193 +170,695	+25%	+$63.3M	0.34%	78
2016 Q4	$249M	Buy	677,498 +10,986	+2%	+$4.18M	0.27%	116
2016 Q3	$268M	Buy	666,512 +64,345	+11%	+$25.8M	0.29%	97
2016 Q2	$210M	Buy	602,167 +96,340	+19%	+$37.1M	0.24%	122
2016 Q1	$182M	Buy	505,827 +8,945	+2%	+$3.69M	0.21%	133
2015 Q4	$270M	Sell	496,882 -19,885	-4%	-$10.8M	0.32%	88
2015 Q3	$240M	Sell	516,767 -85,122	-14%	-$45.7M	0.29%	93
2015 Q2	$307M	Sell	601,889 -45,267	-7%	-$22.1M	0.35%	73
2015 Q1	$292M	Sell	647,156 -90,557	-12%	-$38.4M	0.33%	84
2014 Q4	$303M	Buy	737,713 +269,815	+58%	+$106M	0.34%	75
2014 Q3	$169M	Sell	467,898 -133,352	-22%	-$44.7M	0.2%	148
2014 Q2	$170M	Sell	601,250 -161,350	-21%	-$47.8M	0.19%	147
2014 Q1	$229M	Sell	762,600 -224,574	-23%	-$69.2M	0.27%	105
2013 Q4	$272M	Buy	987,174 +164,864	+20%	+$47.4M	0.32%	79
2013 Q3	$257M	Buy	822,310 +21,686	+3%	+$5.7M	0.32%	78
2013 Q2	$180M	Buy	+800,624	New	+$186M	0.24%	121

Other funds holding REGN

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

American Century Companies's REGN Position: Q2 2026 in Review

American Century Companies reduced its Regeneron Pharmaceuticals (REGN) stake by 89% in Q2 2026, selling an estimated $340M and leaving 62,209 shares worth $38.8M. The position accounts for 0.02% of the portfolio, ranked #971.

American Century Companies first reported a position in REGN in Q2 2013 and has held it in 53 quarters since. The position peaked at $868M in Q2 2024. 1,333 funds tracked by Wall St. Rank hold REGN as of Q2 2026.

American Century Companies held 62,209 shares of Regeneron Pharmaceuticals worth $38.8M as of Q2 2026.
American Century Companies sold 499,888 Regeneron Pharmaceuticals shares in Q2 2026, an estimated $340M.
Regeneron Pharmaceuticals made up 0.02% of American Century Companies's portfolio in Q2 2026, its #971 holding.
American Century Companies first reported a position in Regeneron Pharmaceuticals in Q2 2013 and has held it in 53 quarters since.
American Century Companies's Regeneron Pharmaceuticals position peaked at $868M in Q2 2024.
1,333 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q2 2026.

Based on American Century Companies's 13F filing for Q2 2026, filed 12 Aug 2026.