Tower Research Capital (TRC)’s Spok Holdings SPOK Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$45.4K Buy
4,168
+1,466
+54% +$18.7K ﹤0.01% 2822
2025
Q4
$35.6K Buy
2,702
+1,607
+147% +$22.8K ﹤0.01% 2683
2025
Q3
$18.9K Sell
1,095
-1,679
-61% -$29.9K ﹤0.01% 3362
2025
Q2
$49K Buy
2,774
+2,113
+320% +$34.1K ﹤0.01% 2984
2025
Q1
$10.9K Sell
661
-723
-52% -$11.8K ﹤0.01% 3602
2024
Q4
$22.2K Sell
1,384
-7,895
-85% -$125K ﹤0.01% 3106
2024
Q3
$140K Buy
9,279
+5,596
+152% +$85.1K ﹤0.01% 1956
2024
Q2
$56.8K Buy
3,683
+3,016
+452% +$45.5K ﹤0.01% 3002
2024
Q1
$10.3K Sell
667
-4,246
-86% -$69.9K ﹤0.01% 3717
2023
Q4
$76.1K Buy
4,913
+4,003
+440% +$61.6K ﹤0.01% 2849
2023
Q3
$13K Buy
910
+642
+240% +$8.62K ﹤0.01% 3842
2023
Q2
$3.56K Sell
268
-6,366
-96% -$79.9K ﹤0.01% 5054
2023
Q1
$67K Buy
6,634
+2,903
+78% +$26.5K ﹤0.01% 2247
2022
Q4
$30K Buy
3,731
+564
+18% +$4.58K ﹤0.01% 2755
2022
Q3
$24K Buy
+3,167
New +$22K ﹤0.01% 3791
2022
Q2
Sell
-15,559
Closed -$124K 6492
2022
Q1
$124K Buy
15,559
+426
+3% +$3.87K ﹤0.01% 2055
2021
Q4
$141K Buy
15,133
+13,126
+654% +$129K ﹤0.01% 2012
2021
Q3
$20K Sell
2,007
-5,954
-75% -$53.5K ﹤0.01% 3725
2021
Q2
$76K Buy
7,961
+3,011
+61% +$32.2K ﹤0.01% 2657
2021
Q1
$52K Buy
4,950
+1,304
+36% +$14.9K ﹤0.01% 3093
2020
Q4
$40K Sell
3,646
-15,591
-81% -$154K ﹤0.01% 3325
2020
Q3
$183K Buy
19,237
+14,704
+324% +$147K ﹤0.01% 2661
2020
Q2
$42K Buy
+4,533
New +$47K ﹤0.01% 3187
2019
Q4
Sell
-144
Closed -$2K 4300
2019
Q3
$2K Buy
+144
New +$1.86K ﹤0.01% 3738
2019
Q2
Sell
-2,190
Closed -$30K 4240
2019
Q1
$30K Sell
2,190
-1,107
-34% -$15.4K ﹤0.01% 2048
2018
Q4
$44K Buy
+3,297
New +$47.5K ﹤0.01% 1367
2018
Q3
Sell
-60
Closed -$1K 4211
2018
Q2
$1K Sell
60
-1,425
-96% -$21.4K ﹤0.01% 3513
2018
Q1
$22K Sell
1,485
-20,028
-93% -$303K ﹤0.01% 2124
2017
Q4
$337K Buy
21,513
+12,645
+143% +$212K 0.04% 400
2017
Q3
$136K Buy
+8,868
New +$145K 0.01% 1081
2017
Q1
Sell
-763
Closed -$16K 3858
2016
Q4
$16K Buy
+763
New +$14.2K ﹤0.01% 2339
2016
Q2
Sell
-200
Closed -$4K 4939
2016
Q1
$4K Sell
200
-669
-77% -$11.4K ﹤0.01% 2931
2015
Q4
$16K Sell
869
-3,362
-79% -$59.5K ﹤0.01% 1552
2015
Q3
$70K Buy
4,231
+4,033
+2,037% +$66.8K 0.01% 792
2015
Q2
$3K Buy
198
+97
+96% +$1.77K ﹤0.01% 3578
2015
Q1
$2K Sell
101
-99
-50% -$1.82K ﹤0.01% 3818
2014
Q4
$3K Sell
200
-29
-13% -$452 ﹤0.01% 3153
2014
Q3
$3K Buy
+229
New +$3.41K ﹤0.01% 3625
2014
Q2
Sell
-949
Closed -$17K 4605
2014
Q1
$17K Buy
949
+85
+10% +$1.26K ﹤0.01% 2071
2013
Q4
$12K Sell
864
-121
-12% -$1.75K ﹤0.01% 2833
2013
Q3
$14K Buy
+985
New +$14.2K ﹤0.01% 2965

Other funds holding SPOK

Tower Research Capital (TRC)'s SPOK Position: Q1 2026 in Review

Tower Research Capital (TRC) increased its Spok Holdings (SPOK) stake by 54% in Q1 2026, buying an estimated $18.7K and bringing the position to 4,168 shares worth $45.4K. The position accounts for ﹤0.01% of the portfolio, ranked #2822.

Tower Research Capital (TRC) first reported a position in SPOK in Q3 2013 and has held it in 41 quarters since. The position peaked at $337K in Q4 2017. 139 funds tracked by Wall St. Rank hold SPOK as of Q1 2026.

  • Tower Research Capital (TRC) held 4,168 shares of Spok Holdings worth $45.4K as of Q1 2026.
  • Tower Research Capital (TRC) bought 1,466 Spok Holdings shares in Q1 2026, an estimated $18.7K.
  • Spok Holdings made up ﹤0.01% of Tower Research Capital (TRC)'s portfolio in Q1 2026, its #2822 holding.
  • Tower Research Capital (TRC) first reported a position in Spok Holdings in Q3 2013 and has held it in 41 quarters since.
  • Tower Research Capital (TRC)'s Spok Holdings position peaked at $337K in Q4 2017.
  • 139 funds tracked by Wall St. Rank held Spok Holdings as of Q1 2026.

Based on Tower Research Capital (TRC)'s 13F filing for Q1 2026, filed 15 May 2026.