Ontario Teachers' Pension Plan Board’s MarketAxess Holdings MKTX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q3
– Sell
-5,007
Closed -$1.12M – 283
2025
Q2
$1.12M Buy
5,007
+1,559
+45% +$343K 0.02% 210
2025
Q1
$746K Buy
3,448
+2,423
+236% +$509K 0.01% 307
2024
Q4
$232K Buy
+1,025
New +$270K ﹤0.01% 417
2024
Q2
– Sell
-1,553
Closed -$340K – 504
2024
Q1
$340K Buy
1,553
+807
+108% +$191K ﹤0.01% 449
2023
Q4
$218K Sell
746
-2,309
-76% -$558K ﹤0.01% 486
2023
Q3
$653K Hold
3,055
– – 0.01% 421
2023
Q2
$799K Buy
3,055
+1,087
+55% +$324K 0.01% 387
2023
Q1
$770K Sell
1,968
-934
-32% -$331K 0.01% 373
2022
Q4
$809K Buy
2,902
+1,779
+158% +$458K 0.01% 374
2022
Q3
$250K Buy
+1,123
New +$288K ﹤0.01% 470
2021
Q3
– Sell
-453
Closed -$210K – 500
2021
Q2
$210K Sell
453
-1,113
-71% -$530K ﹤0.01% 417
2021
Q1
$780K Buy
+1,566
New +$835K 0.01% 201
2020
Q4
– Sell
-7,559
Closed -$3.64M – 554
2020
Q3
$3.64M Sell
7,559
-675
-8% -$334K 0.06% 66
2020
Q2
$4.13M Buy
8,234
+1,365
+20% +$636K 0.08% 61
2020
Q1
$2.28M Buy
6,869
+767
+13% +$267K 0.06% 145
2019
Q4
$2.31M Buy
6,102
+223
+4% +$81.8K 0.04% 284
2019
Q3
$1.93M Buy
5,879
+3,963
+207% +$1.42M 0.03% 323
2019
Q2
$616K Buy
1,916
+474
+33% +$137K 0.01% 468
2019
Q1
$355K Buy
+1,442
New +$327K 0.01% 503

Other funds holding MKTX

Ontario Teachers' Pension Plan Board's MKTX Position: Q3 2025 in Review

Ontario Teachers' Pension Plan Board sold out of MarketAxess Holdings (MKTX) in Q3 2025, closing a stake of 5,007 shares — an estimated $1.12M sold.

Ontario Teachers' Pension Plan Board first reported a position in MKTX in Q1 2019 and held it in 19 quarters. The position peaked at $4.13M in Q2 2020. 452 funds tracked by Wall St. Rank hold MKTX as of Q3 2025.

  • Ontario Teachers' Pension Plan Board reported no remaining MarketAxess Holdings position as of Q3 2025 after selling out during the quarter.
  • Ontario Teachers' Pension Plan Board sold 5,007 MarketAxess Holdings shares in Q3 2025, an estimated $1.12M.
  • Ontario Teachers' Pension Plan Board first reported a position in MarketAxess Holdings in Q1 2019 and held it in 19 quarters.
  • Ontario Teachers' Pension Plan Board's MarketAxess Holdings position peaked at $4.13M in Q2 2020.
  • 452 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q3 2025.

Based on Ontario Teachers' Pension Plan Board's 13F filing for Q3 2025, filed 7 Nov 2025.