SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK

1446194

City

BALA CYNWYD

State / Country

Stock

ATRC — AtriCure, Inc.

Top Portfolio Positions

4,099 positions · $783,512,753,567 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
SPY	Spdr S&P 500 ETF Trust	190,466,180	$123,867,775,501	15.81%
QQQ	Invesco Qqq Trust, Series 1	82,233,568	$47,463,570,778	6.06%
NVDA	Nvidia Corp Technology	182,947,844	$31,906,103,992	4.07%
TSLA	Tesla, Inc. Consumer Cyclical	81,497,621	$30,296,740,606	3.87%
MSFT	Microsoft Corp Technology	52,684,180	$19,502,102,909	2.49%
GLD	Spdr Gold Trust	45,013,678	$19,368,935,506	2.47%
META	Meta Platforms, Inc. Communication Services	31,598,305	$18,078,338,239	2.31%
AAPL	Apple Inc. Technology	63,644,634	$16,152,371,662	2.06%
MU	Micron Technology Inc Technology	45,262,263	$15,291,402,931	1.95%
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	37,381,760	$12,633,165,791	1.61%

Portfolio Trend

25 quarters · across all stocks

Holdings in ATRC

Compact Export CSV

Shares Held

Position Value (USD)

43 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$279,594	9,800	-74.7%	Call	Other	2026-05-15
2026-03-31	$1,106,307	38,777	+19.3%	Shares	Other	2026-05-15
2025-12-31	$1,285,700	32,500	+65.0%	Call	Other	2026-02-17
2025-09-30	$694,425	19,700	-15.1%	Call	Other	2025-11-14
2025-06-30	$760,264	23,200	-64.9%	Call	Other	2025-08-14
2025-06-30	$2,168,390	66,170	+1.0%	Shares	Other	2025-08-14
2025-03-31	$2,112,642	65,488	+154.8%	Shares	Other	2025-05-14
2025-03-31	$829,082	25,700	+11.1%	Call	Other	2025-05-14
2024-12-31	$706,791	23,128	+71.3%	Shares	Other	2025-02-14
2024-12-31	$412,560	13,500	+9.0%	Call	Other	2025-02-14
2024-09-30	$347,247	12,384	-86.0%	Shares	Defined	2024-11-14
2024-06-30	$2,008,314	88,200	+350.0%	Call	Defined	2024-08-15
2024-06-30	$446,292	19,600	-77.8%	Put	Defined	2024-08-15
2024-03-31	$2,683,044	88,200	+15.2%	Put	Defined	2024-05-07
2024-03-31	$2,328,132	76,533	+195.5%	Shares	Defined	2024-05-07
2024-03-31	$787,878	25,900	-42.6%	Call	Defined	2024-05-07
2023-12-31	$1,610,117	45,114	+664.6%	Shares	Defined	2024-02-14
2023-12-31	$210,571	5,900	-47.0%	Call	Defined	2024-02-14
2023-09-30	$487,975	11,141	+61.5%	Shares	Defined	2023-11-14
2023-06-30	$340,584	6,900	-82.7%	Call	Defined	2023-08-11
2023-06-30	$1,966,452	39,839	+651.7%	Shares	Defined	2023-08-11
2023-03-31	$219,685	5,300	-74.3%	Call	Defined	2023-05-16
2023-03-31	$854,284	20,610	+232.4%	Shares	Defined	2023-05-16
2022-12-31	$275,156	6,200	-42.6%	Call	Defined	2023-02-14
2022-12-31	$479,082	10,795	-20.4%	Shares	Defined	2023-02-14
2022-09-30	$530,352	13,564	+223.0%	Shares	Defined	2022-11-14
2021-12-31	$292,026	4,200	-9.3%	Call	Defined	2022-04-05
2021-12-31	$321,854	4,629	-11.0%	Shares	Defined	2022-04-05
2021-09-30	$361,660	5,200	-28.8%	Call	Defined	2021-11-15
2021-06-30	$579,109	7,300	-11.0%	Call	Defined	2021-08-11
2021-06-30	$650,426	8,199	+112.3%	Shares	Defined	2021-08-11
2021-03-31	$253,038	3,862	-3.5%	Shares	Defined	2021-05-17
2021-03-31	$262,080	4,000	-59.0%	Call	Defined	2021-05-17
2020-12-31	$542,559	9,746	+156.5%	Shares	Defined	2021-03-26
2020-12-31	$211,546	3,800	-55.3%	Call	Defined	2021-03-26
2020-09-30	$339,150	8,500	+49.1%	Call	Defined	2020-11-16
2020-09-30	$227,430	5,700	+9.2%	Put	Defined	2020-11-16
2020-09-30	$208,238	5,219	-5.1%	Shares	Defined	2020-11-16
2020-06-30	$247,225	5,500	-66.3%	Put	Defined	2020-08-14
2020-06-30	$732,685	16,300	-80.5%	Call	Defined	2020-08-14
2020-03-31	$2,801,406	83,400	+456.0%	Put	Defined	2020-05-15
2020-03-31	$503,850	15,000	-79.9%	Call	Defined	2020-05-15
2020-03-31	$2,511,591	74,772	—	Shares	Defined	2020-05-15
No 13F history on record for this holder in this stock.