Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s Spok Holdings SPOK Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’s Portfolio SPOK Stock Details SPOK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$114K Sell
10,473
-1,834
-15% -$23.3K ﹤0.01% 620
2025
Q4 		$162K Hold
12,307
– – ﹤0.01% 639
2025
Q3 		$212K Hold
12,307
– – ﹤0.01% 585
2025
Q2 		$218K Hold
12,307
– – ﹤0.01% 592
2025
Q1 		$202K Buy
12,307
+1,429
+13% +$23.2K ﹤0.01% 597
2024
Q4 		$175K Hold
10,878
– – ﹤0.01% 564
2024
Q3 		$164K Hold
10,878
– – ﹤0.01% 554
2024
Q2 		$161K Hold
10,878
– – ﹤0.01% 517
2024
Q1 		$174K Hold
10,878
– – ﹤0.01% 500
2023
Q4 		$168K Hold
10,878
– – ﹤0.01% 476
2023
Q3 		$155K Sell
10,878
-32,000
-75% -$430K ﹤0.01% 561
2023
Q2 		$570K Sell
42,878
-1,100
-3% -$13.8K ﹤0.01% 546
2023
Q1 		$445K Sell
43,978
-6,300
-13% -$57.5K ﹤0.01% 572
2022
Q4 		$412K Sell
50,278
-6,900
-12% -$56K ﹤0.01% 606
2022
Q3 		$437K Sell
57,178
-83,500
-59% -$579K ﹤0.01% 587
2022
Q2 		$886K Sell
140,678
-9,900
-7% -$72.1K ﹤0.01% 538
2022
Q1 		$1.2M Sell
150,578
-76,500
-34% -$695K 0.01% 509
2021
Q4 		$2.12M Hold
227,078
– – 0.01% 455
2021
Q3 		$2.32M Buy
227,078
+53,800
+31% +$483K 0.01% 437
2021
Q2 		$1.67M Sell
173,278
-59,900
-26% -$640K 0.01% 486
2021
Q1 		$2.45M Buy
233,178
+7,600
+3% +$87K 0.01% 448
2020
Q4 		$2.51M Sell
225,578
-165,200
-42% -$1.63M 0.02% 396
2020
Q3 		$3.72M Buy
390,778
+30,300
+8% +$303K 0.03% 282
2020
Q2 		$3.37M Sell
360,478
-72,800
-17% -$754K 0.03% 320
2020
Q1 		$4.63M Sell
433,278
-26,710
-6% -$287K 0.04% 254
2019
Q4 		$5.63M Buy
459,988
+14,200
+3% +$168K 0.04% 273
2019
Q3 		$5.32M Buy
445,788
+59,788
+15% +$772K 0.04% 290
2019
Q2 		$5.8M Buy
386,000
+3,800
+1% +$56.4K 0.04% 265
2019
Q1 		$5.21M Buy
+382,200
New +$5.31M 0.04% 266

Other funds holding SPOK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
HighTower Advisors
HighTower Advisors Chicago, Illinois $94.2B AUM 21.24% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s SPOK Position: Q1 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) reduced its Spok Holdings (SPOK) stake by 15% in Q1 2026, selling an estimated $23.3K and leaving 10,473 shares worth $114K. The position accounts for ﹤0.01% of the portfolio, ranked #620.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in SPOK in Q1 2019 and has held it in 29 quarters since. The position peaked at $5.8M in Q2 2019. 139 funds tracked by Wall St. Rank hold SPOK as of Q1 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 10,473 shares of Spok Holdings worth $114K as of Q1 2026.
  • Grantham, Mayo, Van Otterloo & Co (GMO) sold 1,834 Spok Holdings shares in Q1 2026, an estimated $23.3K.
  • Spok Holdings made up ﹤0.01% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q1 2026, its #620 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Spok Holdings in Q1 2019 and has held it in 29 quarters since.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Spok Holdings position peaked at $5.8M in Q2 2019.
  • 139 funds tracked by Wall St. Rank held Spok Holdings as of Q1 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q1 2026, filed 14 May 2026.