Walleye Trading
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Walleye Trading’s Iridium Communications IRDM Stock Holding History

Walleye Trading’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 		$322K Buy
11,600
+6,000
+107% +$135K ﹤0.01% 2852
2025
Q4 		$97.3K Sell
5,600
-6,100
-52% -$108K ﹤0.01% 3748
2025
Q3 		$204K Buy
11,700
+11,300
+2,825% +$279K ﹤0.01% 3352
2025
Q2 		$12.1K Sell
400
-23,900
-98% -$622K ﹤0.01% 4029
2025
Q1 		$664K Buy
24,300
+23,200
+2,109% +$680K ﹤0.01% 2340
2024
Q4 		$31.9K Buy
+1,100
New +$32.7K ﹤0.01% 3872
2024
Q3 		– Sell
-26,400
Closed -$703K – 4327
2024
Q2 		$703K Sell
26,400
-39,600
-60% -$1.11M ﹤0.01% 2300
2024
Q1 		$1.73M Buy
66,000
+45,200
+217% +$1.47M ﹤0.01% 1825
2023
Q4 		$856K Buy
20,800
+7,700
+59% +$305K ﹤0.01% 2615
2023
Q3 		$596K Buy
13,100
+1,400
+12% +$72.5K ﹤0.01% 2802
2023
Q2 		$727K Sell
11,700
-13,300
-53% -$823K ﹤0.01% 2452
2023
Q1 		$1.55M Buy
25,000
+12,800
+105% +$766K ﹤0.01% 1862
2022
Q4 		$627K Buy
12,200
+11,500
+1,643% +$577K ﹤0.01% 2629
2022
Q3 		$31K Buy
+700
New +$30.3K ﹤0.01% 4347
2022
Q1 		– Sell
-36,400
Closed -$1.5M – 5581
2021
Q4 		$1.5M Sell
36,400
-5,700
-14% -$230K ﹤0.01% 1880
2021
Q3 		$1.68M Buy
42,100
+40,600
+2,707% +$1.7M 0.01% 1754
2021
Q2 		$60K Buy
1,500
+800
+114% +$31.1K ﹤0.01% 4558
2021
Q1 		$29K Sell
700
-29,700
-98% -$1.3M ﹤0.01% 4468
2020
Q4 		$1.2M Buy
30,400
+19,400
+176% +$610K 0.01% 1818
2020
Q3 		$281K Buy
+11,000
New +$303K ﹤0.01% 2714
2020
Q2 		– Sell
-6,000
Closed -$134K – 4411
2020
Q1 		$134K Sell
6,000
-500
-8% -$12.9K ﹤0.01% 2920
2019
Q4 		$160K Sell
6,500
-5,800
-47% -$139K ﹤0.01% 3310
2019
Q3 		$262K Sell
12,300
-2,700
-18% -$64.3K ﹤0.01% 2713
2019
Q2 		$349K Buy
15,000
+8,800
+142% +$219K ﹤0.01% 2490
2019
Q1 		$164K Sell
6,200
-3,500
-36% -$75.3K ﹤0.01% 3169
2018
Q4 		$179K Sell
9,700
-19,600
-67% -$402K ﹤0.01% 3482
2018
Q3 		$659K Buy
29,300
+20,900
+249% +$406K ﹤0.01% 2570
2018
Q2 		$135K Sell
8,400
-9,600
-53% -$131K ﹤0.01% 3894
2018
Q1 		$203K Sell
18,000
-18,900
-51% -$226K ﹤0.01% 3481
2017
Q4 		$436 Sell
36,900
-23,100
-39% -$267K ﹤0.01% 2730
2017
Q3 		$618 Sell
60,000
-60,000
-50% -$622K ﹤0.01% 2280
2017
Q2 		$1.33K Sell
120,000
-7,400
-6% -$77.3K 0.01% 1522
2017
Q1 		$1.23K Buy
+127,400
New +$1.22M 0.01% 1470
2016
Q3 		– Sell
-19,900
Closed -$177K – 5101
2016
Q2 		$177K Sell
19,900
-1,200
-6% -$9.86K ﹤0.01% 3049
2016
Q1 		$167K Buy
21,100
+19,600
+1,307% +$141K ﹤0.01% 2935
2015
Q4 		$14K Sell
1,500
-11,100
-88% -$84.5K ﹤0.01% 4602
2015
Q3 		$77K Buy
12,600
+300
+2% +$2.18K ﹤0.01% 3165
2015
Q2 		$112K Buy
+12,300
New +$126K ﹤0.01% 2951

Other funds holding IRDM

BlackRock
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
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
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
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Walleye Trading's IRDM Position: Q1 2026 in Review

Walleye Trading increased its Iridium Communications (IRDM) stake by 17% in Q1 2026, buying an estimated $126K and bringing the position to 37,660 shares worth $1.04M. The position accounts for ﹤0.01% of the portfolio, ranked #2135.

Walleye Trading first reported a position in IRDM in Q2 2015 and has held it in 23 quarters since. 379 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.

  • Walleye Trading held 37,660 shares of Iridium Communications worth $1.04M as of Q1 2026.
  • Walleye Trading bought 5,582 Iridium Communications shares in Q1 2026, an estimated $126K.
  • Iridium Communications made up ﹤0.01% of Walleye Trading's portfolio in Q1 2026, its #2135 holding.
  • Walleye Trading first reported a position in Iridium Communications in Q2 2015 and has held it in 23 quarters since.
  • 379 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.

Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.