Jane Street
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Jane Street’s Medifast MED Stock Holding History

Jane Street’s Portfolio MED Stock Details MED Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q3 		– Sell
-12,400
Closed -$271K – 10089
2024
Q2 		$271K Sell
12,400
-5,300
-30% -$141K ﹤0.01% 7959
2024
Q1 		$678K Buy
17,700
+8,700
+97% +$421K ﹤0.01% 6132
2023
Q4 		$605K Sell
9,000
-2,200
-20% -$153K ﹤0.01% 6440
2023
Q3 		$838K Buy
11,200
+4,500
+67% +$399K ﹤0.01% 5460
2023
Q2 		$617K Hold
6,700
– – ﹤0.01% 5992
2023
Q1 		$695K Buy
6,700
+2,200
+49% +$244K ﹤0.01% 5732
2022
Q4 		$519K Sell
4,500
-1,200
-21% -$140K ﹤0.01% 6066
2022
Q3 		$618K Buy
5,700
+3,700
+185% +$530K ﹤0.01% 6294
2022
Q2 		$361K Buy
+2,000
New +$358K ﹤0.01% 7296
2021
Q4 		– Sell
-4,200
Closed -$809K – 10531
2021
Q3 		$809K Sell
4,200
-1,600
-28% -$393K ﹤0.01% 6337
2021
Q2 		$1.64M Buy
5,800
+4,500
+346% +$1.22M ﹤0.01% 4742
2021
Q1 		$275K Buy
+1,300
New +$311K ﹤0.01% 7821
2020
Q3 		– Sell
-5,800
Closed -$805K – 7607
2020
Q2 		$805K Buy
+5,800
New +$533K ﹤0.01% 4391
2020
Q1 		– Sell
-2,200
Closed -$241K – 5720
2019
Q4 		$241K Sell
2,200
-800
-27% -$77.4K ﹤0.01% 4538
2019
Q3 		$311K Buy
+3,000
New +$322K ﹤0.01% 4137

Other funds holding MED

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
SCP
Steamboat Capital Partners Rye, New York $403M AUM 43.57% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 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
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Man Group
Man Group London, United Kingdom $55.1B AUM 24.23% 1-Year Est. Return

Jane Street's MED Position: Q1 2026 in Review

Jane Street opened a new position in Medifast (MED) in Q1 2026: 126,407 shares worth $1.29M. The stake represents ﹤0.01% of the portfolio and ranks #5955 among its holdings. This is a return to the name: Jane Street previously reported a position in MED as recently as Q4 2024.

Jane Street first reported a position in MED in Q3 2013 and has held it in 23 quarters since. The position peaked at $5.74M in Q2 2024. 111 funds tracked by Wall St. Rank hold MED as of Q1 2026.

  • Jane Street held 126,407 shares of Medifast worth $1.29M as of Q1 2026.
  • Medifast was a new Jane Street position in Q1 2026.
  • Medifast made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #5955 holding.
  • Jane Street first reported a position in Medifast in Q3 2013 and has held it in 23 quarters since.
  • Jane Street's Medifast position peaked at $5.74M in Q2 2024.
  • 111 funds tracked by Wall St. Rank held Medifast as of Q1 2026.

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