Jane Street
POST icon

Jane Street’s Post Holdings POST Stock Holding History

Jane Street’s Portfolio POST Stock Details POST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-6,200
Closed -$614K – 12675
2025
Q4 		$614K Buy
+6,200
New +$642K ﹤0.01% 7235
2025
Q2 		– Sell
-11,500
Closed -$1.34M – 10589
2025
Q1 		$1.34M Sell
11,500
-2,200
-16% -$244K ﹤0.01% 5037
2024
Q4 		$1.57M Buy
13,700
+8,000
+140% +$912K ﹤0.01% 4553
2024
Q3 		$660K Buy
+5,700
New +$639K ﹤0.01% 6699
2023
Q1 		– Sell
-120,400
Closed -$10.9M – 9726
2022
Q4 		$10.9M Sell
120,400
-21,000
-15% -$1.87M 0.01% 1531
2022
Q3 		$11.6M Buy
141,400
+73,200
+107% +$6.33M 0.01% 1552
2022
Q2 		$5.61M Buy
68,200
+22,000
+48% +$1.71M ﹤0.01% 2498
2022
Q1 		$3.19M Buy
46,200
+9,528
+26% +$667K ﹤0.01% 3818
2021
Q4 		$2.71M Sell
36,672
-499,656
-93% -$34.3M ﹤0.01% 3886
2021
Q3 		$38.7M Buy
536,328
+530,980
+9,929% +$37.7M 0.01% 715
2021
Q2 		$380K Buy
+5,348
New +$394K ﹤0.01% 7759
2020
Q4 		– Sell
-17,266
Closed -$972K – 7970
2020
Q3 		$972K Buy
17,266
+3,361
+24% +$192K ﹤0.01% 4136
2020
Q2 		$797K Buy
13,905
+9,015
+184% +$525K ﹤0.01% 4404
2020
Q1 		$266K Buy
+4,890
New +$318K ﹤0.01% 4342
2018
Q1 		– Sell
-7,640
Closed -$396K – 5276
2017
Q4 		$396K Buy
+7,640
New +$406K ﹤0.01% 3454
2017
Q3 		– Sell
-29,643
Closed -$1.51M – 4926
2017
Q2 		$1.51M Buy
+29,643
New +$1.6M 0.01% 1768
2016
Q4 		– Sell
-30,560
Closed -$1.54M – 4480
2016
Q3 		$1.54M Buy
+30,560
New +$1.68M 0.01% 1465
2016
Q2 		– Sell
-6,112
Closed -$275K – 4469
2016
Q1 		$275K Buy
+6,112
New +$258K ﹤0.01% 3320

Other funds holding POST

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
ROIC
Route One Investment Company San Francisco, California $2.35B AUM 11.7% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Holocene Advisors
Holocene Advisors New York $41.5B AUM 42.97% 1-Year Est. Return
LCOV
London Company of Virginia Richmond, Virginia $16.2B AUM 17.5% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Jane Street's POST Position: Q1 2026 in Review

Jane Street increased its Post Holdings (POST) stake by 2,039% in Q1 2026, buying an estimated $11.3M and bringing the position to 116,283 shares worth $11.5M. The position accounts for ﹤0.01% of the portfolio, ranked #2357.

Jane Street first reported a position in POST in Q3 2013 and has held it in 42 quarters since. 426 funds tracked by Wall St. Rank hold POST as of Q1 2026.

  • Jane Street held 116,283 shares of Post Holdings worth $11.5M as of Q1 2026.
  • Jane Street bought 110,847 Post Holdings shares in Q1 2026, an estimated $11.3M.
  • Post Holdings made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #2357 holding.
  • Jane Street first reported a position in Post Holdings in Q3 2013 and has held it in 42 quarters since.
  • 426 funds tracked by Wall St. Rank held Post Holdings as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.