David A. Siegel Iridium Communications Inc. Transaction History

Two Sigma Advisers, LP

$46.1 Billion
Q2 2025

A detailed history of David A. Siegel (Two Sigma Advisers, LP) transactions in Iridium Communications Inc. stock. As of the latest transaction made, Two Sigma Advisers, LP holds 39,800 shares of IRDM stock, worth $743,066. This represents 0.0% of its overall portfolio holdings.

Number of Shares

39,800

Previous 28,200 41.13%

Holding current value

$743,066

Previous $770,000 55.84%

% of portfolio

0.0%

Previous 0.0%

18 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	BUY	$21.57 - $30.17 $250,212 - $349,972	11,600 Added 41.13%	39,800 $1.2 Million
Q1 2025 May 15, 2025	BUY	$26.87 - $32.66 $540,087 - $656,465	20,100 Added 248.15%	28,200 $770,000
Q4 2024 Feb 14, 2025	BUY	$27.32 - $33.54 $13,660 - $16,770	500 Added 6.58%	8,100 $235,000
Q3 2024 Nov 14, 2024	BUY	$25.17 - $31.03 $191,292 - $235,828	7,600 New	7,600 $231,000
Q1 2024 May 15, 2024	SELL	$25.59 - $40.58 $324,993 - $515,366	-12,700 Reduced 49.42%	13,000 $340,000
Q4 2023 Feb 14, 2024	SELL	$35.51 - $44.86 $1 Million - $1.27 Million	-28,200 Reduced 52.32%	25,700 $1.06 Million
Q3 2023 Nov 14, 2023	BUY	$45.37 - $61.66 $653,328 - $887,904	14,400 Added 36.46%	53,900 $2.45 Million
Q2 2023 Aug 14, 2023	SELL	$58.64 - $67.26 $4.5 Million - $5.16 Million	-76,700 Reduced 66.01%	39,500 $2.45 Million
Q1 2023 May 15, 2023	SELL	$52.8 - $64.99 $2.31 Million - $2.84 Million	-43,700 Reduced 27.33%	116,200 $7.2 Million
Q4 2022 Feb 14, 2023	BUY	$46.01 - $53.1 $110,424 - $127,440	2,400 Added 1.52%	159,900 $8.22 Million
Q3 2022 Nov 14, 2022	BUY	$37.58 - $47.06 $811,728 - $1.02 Million	21,600 Added 15.89%	157,500 $6.99 Million
Q2 2022 Aug 15, 2022	SELL	$33.3 - $42.49 $642,690 - $820,057	-19,300 Reduced 12.44%	135,900 $5.1 Million
Q1 2022 May 16, 2022	BUY	$32.04 - $41.58 $2.72 Million - $3.53 Million	84,900 Added 120.77%	155,200 $6.26 Million
Q4 2021 Feb 14, 2022	BUY	$36.95 - $43.18 $1.4 Million - $1.64 Million	37,900 Added 116.98%	70,300 $2.9 Million
Q3 2021 Nov 15, 2021	BUY	$36.96 - $48.79 $1.2 Million - $1.58 Million	32,400 New	32,400 $1.29 Million
Q2 2020 Aug 14, 2020	SELL	$20.23 - $26.99 $184,093 - $245,609	-9,100 Closed	0 $0
Q1 2020 May 15, 2020	SELL	$17.91 - $31.88 $5,373 - $9,564	-300 Reduced 3.19%	9,100 $203,000
Q4 2019 Feb 14, 2020	BUY	$20.46 - $26.05 $192,324 - $244,870	9,400 New	9,400 $232,000

Others Institutions Holding IRDM

# of Institutions

370

Shares Held

103M

Call Options Held

476K

Put Options Held

918K

View Full List

About Iridium Communications Inc.

Ticker IRDM
Exchange NASDAQ
Sector Communication Services
Industry Telecom Services
Shares Outstandng 125,643,000
Market Cap $2.35B
Description
Iridium Communications Inc. provides mobile voice and data communications services and products to businesses, the United States and international governments, non-governmental organizations, and consumers worldwide. The company offers postpaid mobile voice and data satellite communications; prepaid mobile voice satellite communications; push-to...

More about IRDM

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