AllianceBernstein’s Iridium Communications IRDM Stock Holding History

AllianceBernstein’s Portfolio IRDM Stock Details IRDM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$2.94M	Sell	168,896 -183	-0.1%	-$4.12K	﹤0.01%	1796
2025 Q4	$2.94M	Sell	169,079 -29,038	-15%	-$513K	﹤0.01%	1800
2025 Q3	$3.46M	Buy	198,117 +53,624	+37%	+$1.33M	﹤0.01%	1703
2025 Q2	$4.36M	Sell	144,493 -38,522	-21%	-$1M	﹤0.01%	1535
2025 Q1	$5M	Buy	183,015 +17,484	+11%	+$512K	﹤0.01%	1453
2024 Q4	$4.8M	Sell	165,531 -19,001	-10%	-$565K	﹤0.01%	1509
2024 Q3	$5.62M	Buy	184,532 +19,124	+12%	+$521K	﹤0.01%	1473
2024 Q2	$4.4M	Sell	165,408 -34,735	-17%	-$978K	﹤0.01%	1539
2024 Q1	$5.24M	Buy	200,143 +38,563	+24%	+$1.25M	﹤0.01%	1443
2023 Q4	$6.65M	Sell	161,580 -568	-0.4%	-$22.5K	﹤0.01%	1362
2023 Q3	$7.38M	Sell	162,148 -6,725	-4%	-$348K	﹤0.01%	1249
2023 Q2	$10.5M	Sell	168,873 -118,120	-41%	-$7.31M	﹤0.01%	1101
2023 Q1	$17.8M	Sell	286,993 -2,842	-1%	-$170K	0.01%	884
2022 Q4	$14.9M	Buy	289,835 +2,214	+0.8%	+$111K	0.01%	922
2022 Q3	$12.8M	Sell	287,621 -6,952	-2%	-$301K	0.01%	983
2022 Q2	$11.1M	Sell	294,573 -2,687	-0.9%	-$100K	0.01%	1065
2022 Q1	$12M	Sell	297,260 -2,940	-1%	-$111K	﹤0.01%	1129
2021 Q4	$12.4M	Buy	300,200 +936	+0.3%	+$37.8K	﹤0.01%	1137
2021 Q3	$11.9M	Buy	299,264 +10,400	+4%	+$436K	﹤0.01%	1152
2021 Q2	$11.6M	Sell	288,864 -5,950	-2%	-$231K	﹤0.01%	1159
2021 Q1	$12.2M	Buy	294,814 +104,017	+55%	+$4.55M	0.01%	1107
2020 Q4	$7.5M	Hold	190,797	–	–	﹤0.01%	1269
2020 Q3	$4.88M	Buy	190,797 +1,807	+1%	+$49.7K	﹤0.01%	1355
2020 Q2	$4.81M	Buy	188,990 +34,050	+22%	+$798K	﹤0.01%	1339
2020 Q1	$3.46M	Buy	154,940 +200	+0.1%	+$5.18K	﹤0.01%	1354
2019 Q4	$3.81M	Buy	154,740 +200	+0.1%	+$4.79K	﹤0.01%	1592
2019 Q3	$3.29M	Sell	154,540 -17,260	-10%	-$411K	﹤0.01%	1642
2019 Q2	$4M	Buy	171,800 +47,900	+39%	+$1.19M	﹤0.01%	1560
2019 Q1	$3.28M	Buy	123,900 +18,900	+18%	+$407K	﹤0.01%	1619
2018 Q4	$1.94M	Sell	105,000 -8,900	-8%	-$183K	﹤0.01%	1845
2018 Q3	$2.56M	Sell	113,900 -2,600	-2%	-$50.5K	﹤0.01%	1763
2018 Q2	$1.88M	Buy	116,500 +8,700	+8%	+$118K	﹤0.01%	1970
2018 Q1	$1.21M	Buy	107,800 +2,300	+2%	+$27.5K	﹤0.01%	2141
2017 Q4	$1.25M	Buy	105,500 +4,960	+5%	+$57.3K	﹤0.01%	2145
2017 Q3	$1.04M	Hold	100,540	–	–	﹤0.01%	2260
2017 Q2	$1.11M	Hold	100,540	–	–	﹤0.01%	2241
2017 Q1	$970K	Hold	100,540	–	–	﹤0.01%	2250
2016 Q4	$965K	Hold	100,540	–	–	﹤0.01%	2276
2016 Q3	$815K	Sell	100,540 -5,700	-5%	-$47.8K	﹤0.01%	2321
2016 Q2	$943K	Hold	106,240	–	–	﹤0.01%	2242
2016 Q1	$836K	Hold	106,240	–	–	﹤0.01%	2200
2015 Q4	$893K	Buy	106,240 +800	+0.8%	+$6.09K	﹤0.01%	2194
2015 Q3	$648K	Sell	105,440 -160	-0.2%	-$1.16K	﹤0.01%	2385
2015 Q2	$960K	Buy	105,600 +6,900	+7%	+$70.9K	﹤0.01%	2306
2015 Q1	$958K	Hold	98,700	–	–	﹤0.01%	2201
2014 Q4	$962K	Hold	98,700	–	–	﹤0.01%	2224
2014 Q3	$873K	Hold	98,700	–	–	﹤0.01%	2272
2014 Q2	$835K	Buy	98,700 +18,973	+24%	+$143K	﹤0.01%	2348
2014 Q1	$599K	Buy	79,727 +827	+1%	+$5.53K	﹤0.01%	2374
2013 Q4	$494K	Sell	78,900 -9,200	-10%	-$55.6K	﹤0.01%	2457
2013 Q3	$606K	Sell	88,100 -4,745	-5%	-$35.5K	﹤0.01%	2379
2013 Q2	$720K	Buy	+92,845	New	+$652K	﹤0.01%	2265

Other funds holding IRDM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

SHCM

Silver Heights Capital Management Toronto, Ontario, Canada $260M AUM 6.93% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

GAM

Gotham Asset Management New York $32.7B AUM 27.65% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

AllianceBernstein's IRDM Position: Q1 2026 in Review

AllianceBernstein reduced its Iridium Communications (IRDM) stake by 0.11% in Q1 2026, selling an estimated $4.12K and leaving 168,896 shares worth $2.94M. The position accounts for ﹤0.01% of the portfolio, ranked #1796.

AllianceBernstein first reported a position in IRDM in Q2 2013 and has held it in 52 quarters since. The position peaked at $17.8M in Q1 2023. 379 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.

AllianceBernstein held 168,896 shares of Iridium Communications worth $2.94M as of Q1 2026.
AllianceBernstein sold 183 Iridium Communications shares in Q1 2026, an estimated $4.12K.
Iridium Communications made up ﹤0.01% of AllianceBernstein's portfolio in Q1 2026, its #1796 holding.
AllianceBernstein first reported a position in Iridium Communications in Q2 2013 and has held it in 52 quarters since.
AllianceBernstein's Iridium Communications position peaked at $17.8M in Q1 2023.
379 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.

Based on AllianceBernstein's 13F filing for Q1 2026, filed 15 May 2026.