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 		$588K Sell
70,900
-110,100
-61% -$1.14M ﹤0.01% 7669
2025
Q4 		$2.24M Sell
181,000
-317,300
-64% -$3.4M ﹤0.01% 4600
2025
Q3 		$4.4M Buy
498,300
+396,900
+391% +$3.09M ﹤0.01% 3612
2025
Q2 		$647K Buy
101,400
+80,300
+381% +$460K ﹤0.01% 6465
2025
Q1 		$103K Buy
21,100
+8,300
+65% +$68.7K ﹤0.01% 8794
2024
Q4 		$122K Sell
12,800
-16,000
-56% -$147K ﹤0.01% 8671
2024
Q3 		$240K Buy
28,800
+11,400
+66% +$104K ﹤0.01% 8379
2024
Q2 		$119K Buy
+17,400
New +$74.9K ﹤0.01% 8666
2024
Q1 		– Sell
-14,600
Closed -$35K – 9389
2023
Q4 		$35K Sell
14,600
-2,000
-12% -$4.7K ﹤0.01% 8846
2023
Q3 		$56.4K Buy
+16,600
New +$92K ﹤0.01% 8123
2023
Q2 		– Sell
-30,900
Closed -$320K – 8853
2023
Q1 		$320K Buy
+30,900
New +$374K ﹤0.01% 7080
2022
Q4 		– Sell
-23,500
Closed -$493K – 9339
2022
Q3 		$493K Buy
23,500
+4,000
+21% +$111K ﹤0.01% 6720
2022
Q2 		$605K Buy
19,500
+2,000
+11% +$68.3K ﹤0.01% 6395
2022
Q1 		$719K Buy
17,500
+3,200
+22% +$141K ﹤0.01% 6795
2021
Q4 		$622K Sell
14,300
-1,800
-11% -$81.4K ﹤0.01% 6844
2021
Q3 		$806K Sell
16,100
-13,700
-46% -$830K ﹤0.01% 6346
2021
Q2 		$1.88M Sell
29,800
-1,800
-6% -$116K ﹤0.01% 4442
2021
Q1 		$2.94M Sell
31,600
-13,700
-30% -$1.4M ﹤0.01% 3293
2020
Q4 		$4.06M Buy
45,300
+34,500
+319% +$3.17M ﹤0.01% 2392
2020
Q3 		$1.12M Buy
10,800
+5,800
+116% +$625K ﹤0.01% 3922
2020
Q2 		$395K Buy
+5,000
New +$373K ﹤0.01% 5424

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.