Jim Simons’s AtriCure ATRC Stock Holding History

Jim Simons’s Portfolio ATRC Stock Details ATRC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$8.81M	Sell	308,700 -13,200	-4%	-$450K	0.01%	1037
2025 Q4	$12.7M	Buy	321,900 +63,100	+24%	+$2.31M	0.02%	800
2025 Q3	$9.12M	Sell	258,800 -118,900	-31%	-$4.1M	0.01%	1135
2025 Q2	$12.4M	Buy	377,700 +69,800	+23%	+$2.27M	0.02%	939
2025 Q1	$9.93M	Buy	307,900 +144,000	+88%	+$5.35M	0.02%	1011
2024 Q4	$5.01M	Buy	163,900 +65,800	+67%	+$2.12M	0.01%	1455
2024 Q3	$2.75M	Sell	98,100 -73,600	-43%	-$1.81M	﹤0.01%	1813
2024 Q2	$3.91M	Buy	171,700 +19,500	+13%	+$450K	0.01%	1462
2024 Q1	$4.63M	Buy	152,200 +57,900	+61%	+$1.94M	0.01%	1456
2023 Q4	$3.37M	Sell	94,300 -47,100	-33%	-$1.75M	0.01%	1610
2023 Q3	$6.19M	Buy	141,400 +44,600	+46%	+$2.18M	0.01%	1188
2023 Q2	$4.78M	Sell	96,800 -37,900	-28%	-$1.75M	0.01%	1450
2023 Q1	$5.58M	Buy	134,700 +35,900	+36%	+$1.49M	0.01%	1410
2022 Q4	$4.38M	Sell	98,800 -11,000	-10%	-$459K	0.01%	1591
2022 Q3	$4.29M	Buy	109,800 +29,700	+37%	+$1.36M	0.01%	1530
2022 Q2	$3.27M	Buy	+80,100	New	+$3.79M	﹤0.01%	1855
2021 Q4	–	Sell	-65,200	Closed	-$4.54M	–	3887
2021 Q3	$4.54M	Sell	65,200 -3,400	-5%	-$262K	0.01%	1534
2021 Q2	$5.44M	Buy	+68,600	New	+$4.99M	0.01%	1582
2021 Q1	–	Sell	-20,900	Closed	-$1.16M	–	3297
2020 Q4	$1.16M	Sell	20,900 -550,475	-96%	-$23.8M	﹤0.01%	2423
2020 Q3	$22.8M	Sell	571,375 -102,100	-15%	-$4.33M	0.02%	679
2020 Q2	$30.3M	Buy	673,475 +138,975	+26%	+$6.05M	0.03%	607
2020 Q1	$18M	Buy	534,500 +211,300	+65%	+$7.6M	0.02%	835
2019 Q4	$10.5M	Buy	323,200 +115,700	+56%	+$3.29M	0.01%	1414
2019 Q3	$5.17M	Buy	207,500 +32,259	+18%	+$921K	﹤0.01%	1774
2019 Q2	$5.23M	Buy	175,241 +45,541	+35%	+$1.33M	﹤0.01%	1791
2019 Q1	$3.48M	Buy	129,700 +99,500	+329%	+$3.02M	﹤0.01%	2028
2018 Q4	$924K	Buy	30,200 +8,600	+40%	+$268K	﹤0.01%	2614
2018 Q3	$757K	Sell	21,600 -43,100	-67%	-$1.36M	﹤0.01%	2719
2018 Q2	$1.75M	Buy	64,700 +900	+1%	+$21.2K	﹤0.01%	2338
2018 Q1	$1.31M	Sell	63,800 -12,229	-16%	-$221K	﹤0.01%	2533
2017 Q4	$1.39M	Buy	76,029 +51,429	+209%	+$1.02M	﹤0.01%	2526
2017 Q3	$550K	Buy	+24,600	New	+$556K	﹤0.01%	2768
2017 Q1	–	Sell	-57,200	Closed	-$1.12M	–	3217
2016 Q4	$1.12M	Sell	57,200 -31,700	-36%	-$575K	﹤0.01%	2497
2016 Q3	$1.41M	Sell	88,900 -1,700	-2%	-$26.1K	﹤0.01%	2399
2016 Q2	$1.28M	Sell	90,600 -24,200	-21%	-$369K	﹤0.01%	2426
2016 Q1	$1.93M	Buy	+114,800	New	+$2.02M	﹤0.01%	2240
2015 Q4	–	Sell	-18,500	Closed	-$405K	–	3268
2015 Q3	$405K	Buy	+18,500	New	+$462K	﹤0.01%	2684
2014 Q2	–	Sell	-38,950	Closed	-$733K	–	2776
2014 Q1	$733K	Buy	38,950 +7,250	+23%	+$149K	﹤0.01%	2201
2013 Q4	$592K	Buy	+31,700	New	+$461K	﹤0.01%	2302
2013 Q3	–	Sell	-35,320	Closed	-$336K	–	2806
2013 Q2	$336K	Buy	+35,320	New	+$308K	﹤0.01%	2373

Other funds holding ATRC

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

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

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

HRCM

Hood River Capital Management Palm Beach Gardens, Florida $9.98B AUM 145.42% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

NAMI

Nomura Asset Management International Philadelphia, Pennsylvania $58.4B AUM

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

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

Jim Simons's ATRC Position: Q1 2026 in Review

Jim Simons reduced its AtriCure (ATRC) stake by 4.1% in Q1 2026, selling an estimated $450K and leaving 308,700 shares worth $8.81M. The position accounts for 0.01% of the portfolio, ranked #1037.

Jim Simons first reported a position in ATRC in Q2 2013 and has held it in 40 quarters since. The position peaked at $30.3M in Q2 2020. 223 funds tracked by Wall St. Rank hold ATRC as of Q1 2026.

Jim Simons held 308,700 shares of AtriCure worth $8.81M as of Q1 2026.
Jim Simons sold 13,200 AtriCure shares in Q1 2026, an estimated $450K.
AtriCure made up 0.01% of Jim Simons's portfolio in Q1 2026, its #1037 holding.
Jim Simons first reported a position in AtriCure in Q2 2013 and has held it in 40 quarters since.
Jim Simons's AtriCure position peaked at $30.3M in Q2 2020.
223 funds tracked by Wall St. Rank held AtriCure as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.