MILLENNIUM MANAGEMENT LLC

CIK

1273087

City

NEW YORK

State / Country

Stock

MREO — Mereo BioPharma Group plc

Top Portfolio Positions

3,482 positions · $188,649,435,433 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
NVDA	Nvidia Corp Technology	41,582,547	$7,251,996,196	3.84%
QQQ	Invesco Qqq Trust, Series 1	10,632,144	$6,136,660,873	3.25%
AAPL	Apple Inc. Technology	18,600,133	$4,720,527,754	2.50%
MSFT	Microsoft Corp Technology	12,458,877	$4,611,902,499	2.44%
META	Meta Platforms, Inc. Communication Services	7,116,492	$4,071,558,567	2.16%
AMZN	Amazon Com Inc Consumer Cyclical	18,236,289	$3,798,071,910	2.01%
SPY	Spdr S&P 500 ETF Trust	4,929,022	$3,205,540,167	1.70%
TSLA	Tesla, Inc. Consumer Cyclical	8,214,403	$3,053,704,315	1.62%
GOOGL	Alphabet Inc. Communication Services	10,539,687	$3,030,792,393	1.61%
AVGO	Broadcom Inc. Technology	6,702,204	$2,074,399,160	1.10%

Portfolio Trend

25 quarters · across all stocks

Holdings in MREO

Compact Export CSV

Shares Held

Position Value (USD)

27 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,174,503	3,559,103	+4155.0%	Shares	Sole	2026-05-15
2025-12-31	$34,880	83,646	-75.2%	Shares	Sole	2026-02-17
2025-09-30	$695,256	337,503	+484.9%	Shares	Sole	2025-11-14
2025-09-30	$118,862	57,700	-90.3%	Put	Sole	2025-11-14
2025-06-30	$1,614,273	595,673	+289.3%	Shares	Sole	2025-08-14
2025-06-30	$414,630	153,000	-47.0%	Call	Sole	2025-08-14
2025-06-30	$782,377	288,700	-26.8%	Put	Sole	2025-08-14
2025-03-31	$887,469	394,431	+36.6%	Shares	Sole	2025-05-15
2025-03-31	$649,575	288,700	-92.7%	Put	Sole	2025-05-15
2024-12-31	$13,879,012	3,965,432	+8213.3%	Shares	Sole	2025-02-14
2024-12-31	$166,950	47,700	-99.1%	Put	Sole	2025-02-14
2024-09-30	$22,172,180	5,394,691	+68.5%	Shares	Sole	2024-11-14
2024-06-30	$11,526,138	3,201,705	+46.9%	Shares	Sole	2024-08-14
2024-03-31	$7,191,145	2,179,135	+54.5%	Shares	Sole	2024-05-15
2023-12-31	$3,257,832	1,410,317	+13.4%	Shares	Sole	2024-02-14
2023-09-30	$1,604,224	1,243,585	+30.2%	Shares	Sole	2023-11-14
2023-06-30	$1,260,693	955,071	-61.9%	Shares	Sole	2023-08-14
2023-03-31	$1,771,480	2,505,630	+91.1%	Shares	Sole	2023-05-15
2022-12-31	$983,511	1,311,349	+4.6%	Shares	Sole	2023-02-14
2022-09-30	$1,079,359	1,253,611	+78.6%	Shares	Sole	2022-11-14
2022-06-30	$786,123	701,896	-23.5%	Shares	Sole	2022-08-15
2022-03-31	$1,028,224	918,058	-3.5%	Shares	Sole	2022-05-16
2021-12-31	$1,521,654	951,034	-33.7%	Shares	Sole	2022-02-14
2021-09-30	$3,471,596	1,434,544	-13.8%	Shares	Sole	2021-11-15
2021-06-30	$5,274,721	1,663,950	-35.7%	Shares	Sole	2021-08-16
2021-03-31	$8,726,166	2,589,367	+1506.5%	Shares	Sole	2021-05-17
2020-12-31	$577,024	161,180	—	Shares	Sole	2021-02-16
No 13F history on record for this holder in this stock.