Jane Street
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Jane Street’s Emergent Biosolutions EBS Stock Holding History

Jane Street’s Portfolio EBS Stock Details EBS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$98.8K Sell
11,900
-39,700
-77% -$411K ﹤0.01% 10662
2025
Q4 		$638K Buy
51,600
+200
+0.4% +$2.14K ﹤0.01% 7153
2025
Q3 		$453K Buy
51,400
+27,900
+119% +$217K ﹤0.01% 8069
2025
Q2 		$150K Buy
+23,500
New +$134K ﹤0.01% 8748
2024
Q3 		– Sell
-29,800
Closed -$203K – 9731
2024
Q2 		$203K Buy
+29,800
New +$128K ﹤0.01% 8362
2023
Q3 		– Sell
-22,100
Closed -$162K – 8791
2023
Q2 		$162K Buy
+22,100
New +$205K ﹤0.01% 7769
2023
Q1 		– Sell
-11,300
Closed -$133K – 9220
2022
Q4 		$133K Sell
11,300
-6,100
-35% -$94.4K ﹤0.01% 7939
2022
Q3 		$365K Buy
17,400
+10,500
+152% +$292K ﹤0.01% 7247
2022
Q2 		$214K Sell
6,900
-8,600
-55% -$294K ﹤0.01% 8094
2022
Q1 		$636K Sell
15,500
-7,500
-33% -$331K ﹤0.01% 7022
2021
Q4 		$1M Buy
23,000
+6,500
+39% +$294K ﹤0.01% 5891
2021
Q3 		$826K Sell
16,500
-15,500
-48% -$939K ﹤0.01% 6292
2021
Q2 		$2.02M Buy
32,000
+15,200
+90% +$977K ﹤0.01% 4322
2021
Q1 		$1.56M Sell
16,800
-18,100
-52% -$1.85M ﹤0.01% 4508
2020
Q4 		$3.13M Buy
34,900
+32,600
+1,417% +$2.99M ﹤0.01% 2763
2020
Q3 		$238K Buy
+2,300
New +$248K ﹤0.01% 6206

Other funds holding EBS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
PCM
Palisade Capital Management Fort Lee, New Jersey $3B AUM 14% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Jane Street's EBS Position: Q1 2026 in Review

Jane Street reduced its Emergent Biosolutions (EBS) stake by 70% in Q1 2026, selling an estimated $2.88M and leaving 117,315 shares worth $974K. The position accounts for ﹤0.01% of the portfolio, ranked #6548.

Jane Street first reported a position in EBS in Q3 2013 and has held it in 28 quarters since. The position peaked at $4.89M in Q4 2025. 190 funds tracked by Wall St. Rank hold EBS as of Q1 2026.

  • Jane Street held 117,315 shares of Emergent Biosolutions worth $974K as of Q1 2026.
  • Jane Street sold 278,142 Emergent Biosolutions shares in Q1 2026, an estimated $2.88M.
  • Emergent Biosolutions made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #6548 holding.
  • Jane Street first reported a position in Emergent Biosolutions in Q3 2013 and has held it in 28 quarters since.
  • Jane Street's Emergent Biosolutions position peaked at $4.89M in Q4 2025.
  • 190 funds tracked by Wall St. Rank held Emergent Biosolutions as of Q1 2026.

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