Ken Griffin’s Pearson PSO Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $828K | Buy |
63,046
+28,893
| +85% | +$375K | ﹤0.01% | 8096 |
|
|
2025
Q4 | $480K | Sell |
34,153
-78,136
| -70% | -$1.08M | ﹤0.01% | 9130 |
|
|
2025
Q3 | $1.59M | Sell |
112,289
-34,885
| -24% | -$502K | ﹤0.01% | 6536 |
|
|
2025
Q2 | $2.2M | Buy |
147,174
+24,306
| +20% | +$378K | ﹤0.01% | 5529 |
|
|
2025
Q1 | $1.97M | Buy |
+122,868
| New | +$2.02M | ﹤0.01% | 5564 |
|
|
2024
Q3 | – | Sell |
-221,246
| Closed | -$2.76M | – | 15020 |
|
|
2024
Q2 | $2.76M | Buy |
221,246
+171,928
| +349% | +$2.12M | ﹤0.01% | 4722 |
|
|
2024
Q1 | $649K | Sell |
49,318
-111,260
| -69% | -$1.38M | ﹤0.01% | 7810 |
|
|
2023
Q4 | $1.97M | Buy |
160,578
+58,451
| +57% | +$680K | ﹤0.01% | 5378 |
|
|
2023
Q3 | $1.08M | Buy |
+102,127
| New | +$1.09M | ﹤0.01% | 6414 |
|
|
2022
Q3 | – | Sell |
-42,827
| Closed | -$395K | – | 13393 |
|
|
2022
Q2 | $395K | Sell |
42,827
-221,468
| -84% | -$2.14M | ﹤0.01% | 9163 |
|
|
2022
Q1 | $2.64M | Sell |
264,295
-109,985
| -29% | -$993K | ﹤0.01% | 5467 |
|
|
2021
Q4 | $3.14M | Buy |
374,280
+328,217
| +713% | +$2.82M | ﹤0.01% | 5249 |
|
|
2021
Q3 | $446K | Buy |
46,063
+25,647
| +126% | +$278K | ﹤0.01% | 10159 |
|
|
2021
Q2 | $237K | Sell |
20,416
-111,506
| -85% | -$1.3M | ﹤0.01% | 11803 |
|
|
2021
Q1 | $1.41M | Sell |
131,922
-219,788
| -62% | -$2.28M | ﹤0.01% | 7262 |
|
|
2020
Q4 | $3.23M | Sell |
351,710
-140,427
| -29% | -$1.12M | ﹤0.01% | 4470 |
|
|
2020
Q3 | $3.5M | Sell |
492,137
-79,716
| -14% | -$575K | ﹤0.01% | 3712 |
|
|
2020
Q2 | $4.13M | Buy |
571,853
+249,537
| +77% | +$1.56M | ﹤0.01% | 3356 |
|
|
2020
Q1 | $2.22M | Buy |
322,316
+298,212
| +1,237% | +$2.17M | ﹤0.01% | 3970 |
|
|
2019
Q4 | $203K | Buy |
+24,104
| New | +$207K | ﹤0.01% | 8167 |
|
|
2017
Q1 | – | Sell |
-12,174
| Closed | -$122K | – | 7907 |
|
|
2016
Q4 | $122K | Buy |
+12,174
| New | +$118K | ﹤0.01% | 6597 |
|
|
2016
Q1 | – | Sell |
-171,256
| Closed | -$1.85M | – | 7717 |
|
|
2015
Q4 | $1.85M | Buy |
171,256
+136,441
| +392% | +$1.84M | ﹤0.01% | 2830 |
|
|
2015
Q3 | $597K | Buy |
+34,815
| New | +$629K | ﹤0.01% | 4548 |
|
|
2015
Q2 | – | Sell |
-45,707
| Closed | -$988K | – | 9006 |
|
|
2015
Q1 | $988K | Buy |
45,707
+31,443
| +220% | +$651K | ﹤0.01% | 3933 |
|
|
2014
Q4 | $263K | Buy |
+14,264
| New | +$268K | ﹤0.01% | 5622 |
|
Other funds holding PSO
LP
Ken Griffin's PSO Position: Q1 2026 in Review
Ken Griffin increased its Pearson (PSO) stake by 85% in Q1 2026, buying an estimated $375K and bringing the position to 63,046 shares worth $828K. The position accounts for ﹤0.01% of the portfolio, ranked #8096.
Ken Griffin first reported a position in PSO in Q4 2014 and has held it in 25 quarters since. The position peaked at $4.13M in Q2 2020. 199 funds tracked by Wall St. Rank hold PSO as of Q1 2026.
- Ken Griffin held 63,046 shares of Pearson worth $828K as of Q1 2026.
- Ken Griffin bought 28,893 Pearson shares in Q1 2026, an estimated $375K.
- Pearson made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #8096 holding.
- Ken Griffin first reported a position in Pearson in Q4 2014 and has held it in 25 quarters since.
- Ken Griffin's Pearson position peaked at $4.13M in Q2 2020.
- 199 funds tracked by Wall St. Rank held Pearson as of Q1 2026.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.