Tower Research Capital (TRC)’s Castellum CTM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$4.23K Buy
+5,872
New +$4.18K ﹤0.01% 4416
2026
Q1
Sell
-2,973
Closed -$2.69K 5183
2025
Q4
$2.69K Sell
2,973
-6,061
-67% -$6.47K ﹤0.01% 4483
2025
Q3
$9.85K Buy
+9,034
New +$10.5K ﹤0.01% 4011
2025
Q2
Sell
-38,961
Closed -$41.3K 5300
2025
Q1
$41.3K Buy
38,961
+38,301
+5,803% +$40.7K ﹤0.01% 2356
2024
Q4
$1.32K Sell
660
-19,620
-97% -$6.26K ﹤0.01% 5043
2024
Q3
$3.55K Sell
20,280
-1,605
-7% -$279 ﹤0.01% 4825
2024
Q2
$4.07K Buy
21,885
+517
+2% +$120 ﹤0.01% 4820
2024
Q1
$5.56K Buy
21,368
+495
+2% +$150 ﹤0.01% 4524
2023
Q4
$6.22K Buy
20,873
+9,298
+80% +$2.51K ﹤0.01% 4768
2023
Q3
$2.66K Buy
11,575
+9,050
+358% +$3.38K ﹤0.01% 5122
2023
Q2
$1.26K Buy
+2,525
New +$2.09K ﹤0.01% 5421

Other funds holding CTM

Tower Research Capital (TRC)'s CTM Position: Q2 2026 in Review

Tower Research Capital (TRC) opened a new position in Castellum (CTM) in Q2 2026: 5,872 shares worth $4.23K. The stake represents ﹤0.01% of the portfolio and ranks #4416 among its holdings. This is a return to the name: Tower Research Capital (TRC) previously reported a position in CTM as recently as Q4 2025.

Tower Research Capital (TRC) first reported a position in CTM in Q2 2023 and has held it in 11 quarters since. The position peaked at $41.3K in Q1 2025. 35 funds tracked by Wall St. Rank hold CTM as of Q2 2026.

  • Tower Research Capital (TRC) held 5,872 shares of Castellum worth $4.23K as of Q2 2026.
  • Castellum was a new Tower Research Capital (TRC) position in Q2 2026.
  • Castellum made up ﹤0.01% of Tower Research Capital (TRC)'s portfolio in Q2 2026, its #4416 holding.
  • Tower Research Capital (TRC) first reported a position in Castellum in Q2 2023 and has held it in 11 quarters since.
  • Tower Research Capital (TRC)'s Castellum position peaked at $41.3K in Q1 2025.
  • 35 funds tracked by Wall St. Rank held Castellum as of Q2 2026.

Based on Tower Research Capital (TRC)'s 13F filing for Q2 2026, filed 11 Aug 2026.