MILLENNIUM MANAGEMENT LLC

CIK

1273087

City

NEW YORK

State / Country

Stock

IRM — Iron Mountain Inc

Top Portfolio Positions

3,491 positions · $188,476,613,583 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
NVDA	Nvidia Corp Technology	41,582,547	$7,251,996,196	3.85%
QQQ	Invesco Qqq Trust, Series 1	10,632,144	$6,136,660,873	3.26%
AAPL	Apple Inc. Technology	18,600,133	$4,720,527,754	2.50%
MSFT	Microsoft Corp Technology	12,458,877	$4,611,902,499	2.45%
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	2.02%
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 IRM

Compact Export CSV

Shares Held

Position Value (USD)

50 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$980,544	9,600	-85.8%	Put	Sole	2026-05-15
2026-03-31	$6,884,236	67,400	-82.0%	Call	Sole	2026-05-15
2026-03-31	$38,247,650	374,463	+402.0%	Shares	Sole	2026-05-15
2025-12-31	$6,188,070	74,600	+532.2%	Call	Sole	2026-02-17
2025-12-31	$978,810	11,800	-97.6%	Put	Sole	2026-02-17
2025-12-31	$40,563,711	489,014	+2262.4%	Shares	Sole	2026-02-17
2025-09-30	$2,110,158	20,700	-95.7%	Put	Sole	2025-11-14
2025-09-30	$49,483,408	485,417	+1275.1%	Shares	Sole	2025-11-14
2025-09-30	$3,598,482	35,300	-18.1%	Call	Sole	2025-11-14
2025-06-30	$4,420,767	43,100	+76.6%	Call	Sole	2025-08-14
2025-06-30	$2,502,708	24,400	-95.8%	Put	Sole	2025-08-14
2025-06-30	$59,077,140	575,969	+934.1%	Shares	Sole	2025-08-14
2025-03-31	$4,792,428	55,700	-92.0%	Call	Sole	2025-05-15
2025-03-31	$59,874,719	695,894	+1601.5%	Shares	Sole	2025-05-15
2025-03-31	$3,519,036	40,900	+752.1%	Put	Sole	2025-05-15
2024-12-31	$504,528	4,800	-91.0%	Put	Sole	2025-02-14
2024-12-31	$5,612,874	53,400	+82.8%	Call	Sole	2025-02-14
2024-12-31	$3,070,578	29,213	+759.2%	Shares	Sole	2025-02-14
2024-09-30	$404,022	3,400	-97.4%	Call	Sole	2024-11-14
2024-09-30	$15,357,826	129,242	+3131.1%	Shares	Sole	2024-11-14
2024-09-30	$475,320	4,000	-94.9%	Put	Sole	2024-11-14
2024-06-30	$6,993,675	78,037	+453.5%	Shares	Sole	2024-08-14
2024-06-30	$1,263,642	14,100	-69.5%	Put	Sole	2024-08-14
2024-03-31	$3,705,702	46,200	-95.2%	Put	Sole	2024-05-15
2024-03-31	$76,882,648	958,517	+27286.2%	Shares	Sole	2024-05-15
2023-12-31	$244,930	3,500	-94.2%	Put	Sole	2024-02-14
2023-12-31	$4,244,636	60,655	-36.2%	Shares	Sole	2024-02-14
2023-09-30	$5,652,862	95,086	+797.0%	Shares	Sole	2023-11-14
2023-09-30	$630,170	10,600	-89.6%	Put	Sole	2023-11-14
2023-06-30	$5,772,912	101,600	-76.9%	Put	Sole	2023-08-14
2023-06-30	$25,039,835	440,687	+266.0%	Shares	Sole	2023-08-14
2023-03-31	$6,370,364	120,400	-29.5%	Put	Sole	2023-05-15
2023-03-31	$9,040,943	170,874	+463.9%	Shares	Sole	2023-05-15
2022-12-31	$1,510,455	30,300	-13.2%	Call	Sole	2023-02-14
2022-12-31	$1,741,110	34,927	+15.3%	Shares	Sole	2023-02-14
2022-09-30	$1,332,291	30,300	-90.0%	Call	Sole	2022-11-14
2022-09-30	$13,311,301	302,736	-58.5%	Shares	Sole	2022-11-14
2022-06-30	$35,498,272	729,067	+748.7%	Shares	Sole	2022-08-15
2022-06-30	$4,182,471	85,900	-42.8%	Put	Sole	2022-08-15
2022-03-31	$8,325,518	150,253	-71.4%	Shares	Sole	2022-05-16
2022-03-31	$29,123,496	525,600	+154.0%	Put	Sole	2022-05-16
2021-12-31	$10,828,332	206,924	-50.7%	Shares	Sole	2022-02-14
2021-12-31	$21,962,901	419,700	+9.2%	Put	Sole	2022-02-14
2021-09-30	$16,693,490	384,200	+844.0%	Put	Sole	2021-11-15
2021-09-30	$1,768,415	40,700	-77.1%	Call	Sole	2021-11-15
2021-09-30	$7,726,887	177,834	-48.8%	Shares	Sole	2021-11-15
2021-06-30	$14,695,027	347,236	-48.6%	Shares	Sole	2021-08-16
2021-06-30	$28,587,160	675,500	+32.5%	Put	Sole	2021-08-16
2021-03-31	$18,875,100	510,000	-4.2%	Put	Sole	2021-05-17
2021-03-31	$19,706,529	532,465	—	Shares	Sole	2021-05-17
No 13F history on record for this holder in this stock.