Jane Street
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Jane Street’s Pediatrix Medical MD Stock Holding History

Jane Street’s Portfolio MD Stock Details MD Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2022
Q1 		– Sell
-8,300
Closed -$226K – 10730
2021
Q4 		$226K Buy
8,300
+1,000
+14% +$26.8K ﹤0.01% 8636
2021
Q3 		$208K Sell
7,300
-16,300
-69% -$497K ﹤0.01% 8778
2021
Q2 		$712K Buy
23,600
+10,000
+74% +$295K ﹤0.01% 6552
2021
Q1 		$346K Buy
13,600
+3,600
+36% +$92.2K ﹤0.01% 7472
2020
Q4 		$245K Buy
+10,000
New +$188K ﹤0.01% 6697

Other funds holding MD

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

Jane Street's MD Position: Q1 2026 in Review

Jane Street increased its Pediatrix Medical (MD) stake by 97% in Q1 2026, buying an estimated $2.25M and bringing the position to 218,655 shares worth $4.68M. The position accounts for ﹤0.01% of the portfolio, ranked #3628.

Jane Street first reported a position in MD in Q3 2013 and has held it in 31 quarters since. 296 funds tracked by Wall St. Rank hold MD as of Q1 2026.

  • Jane Street held 218,655 shares of Pediatrix Medical worth $4.68M as of Q1 2026.
  • Jane Street bought 107,880 Pediatrix Medical shares in Q1 2026, an estimated $2.25M.
  • Pediatrix Medical made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #3628 holding.
  • Jane Street first reported a position in Pediatrix Medical in Q3 2013 and has held it in 31 quarters since.
  • 296 funds tracked by Wall St. Rank held Pediatrix Medical as of Q1 2026.

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