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Emergent Biosolutions
EBS

190 hedge funds and large institutions have $361M invested in Emergent Biosolutions in 2026 Q1 according to their latest regulatory filings, with 37 funds opening new positions, 70 increasing their positions, 53 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed

244% more call options, than puts

Call options by funds: $3.9M | Put options by funds: $1.13M

42% more first-time investments, than exits

New positions opened: 37 | Existing positions closed: 26

32% more repeat investments, than reductions

Existing positions increased: 70 | Existing positions reduced: 53

4% more funds holding

Funds holding: 183 → 190 (+7)

1.45% more ownership

Funds ownership: 82.65% → 84.11% (+1.5%)

33% less capital invested

Capital invested by funds: $537M → $361M (-$176M)

50% less funds holding in top 10

Funds holding in top 10: 2 → 1 (-1)

Holders
190
Holders Change
+7
Holders Change %
+3.83%
% of All Funds
2.34%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.01%
New
37
Increased
70
Reduced
53
Closed
26
Calls
$3.9M
Puts
$1.13M
Net Calls
+$2.77M
Net Calls Change
-$2.78M

Top Buyers

Rank Fund Capital Flow
1
PM
Prosight Management
Texas
+$6.62M
2
AQR Capital Management
AQR Capital Management
Connecticut
+$5.3M
3
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$5.23M
4
Pacer Advisors
Pacer Advisors
Pennsylvania
+$4.31M
5
Prudential Financial
Prudential Financial
New Jersey
+$3.72M

Top Sellers

Rank Fund Capital Flow
1
OHA
Oak Hill Advisors
New York
-$25.9M
2
JG
Jain Global
New York
-$7.7M
3
Morgan Stanley
Morgan Stanley
New York
-$4.28M
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$3.41M
5
Jane Street
Jane Street
New York
-$2.88M
Name Holding Trade Value Shares
Change 		Change in
Stake
BIG
201
Brooklyn Investment Group
New York
– -$275K -22,482 Closed
YIH
202
Y-Intercept (HK)
Hong Kong
– -$173K -14,011 Closed
ZIM
203
Zacks Investment Management
Illinois
– -$141K -11,432 Closed
Ameriprise
204
Ameriprise
Minnesota
– -$139K -11,235 Closed
BRWA
205
B. Riley Wealth Advisors
Florida
– -$130K -10,500 Closed
KAS
206
Kemnay Advisory Services
New York
– -$107K -8,660 Closed
Canada Life
207
Canada Life
Manitoba, Canada
– -$45K -3,645 Closed
AB
208
Amalgamated Bank
New York
– -$20K -1,639 Closed
A
209
AlphaQuest
New York
– -$19.1K -1,549 Closed
Northwestern Mutual Wealth Management
210
Northwestern Mutual Wealth Management
Wisconsin
– -$964 -78 Closed
OC
211
Optima Capital
Oregon
– -$680 -55 Closed
CA
212
Clearstead Advisors
Ohio
– -$112 -9 Closed
SWM
213
SHP Wealth Management
Massachusetts
– -$62 -5 Closed
Walleye Capital
214
Walleye Capital
New York
– -$49 -4 Closed
FHA
215
Flagship Harbor Advisors
Massachusetts
– -$25 -2 Closed
5 6 7 8
9

EBS Hedge Fund Activity: Q1 2026 in Review

190 of the 8,128 institutional investors tracked by Wall St. Rank reported a position in Emergent Biosolutions (EBS) for Q1 2026, worth a combined $361M — down 33% from $537M a quarter earlier.

Buyers outnumbered sellers: 37 funds opened new EBS positions and 26 closed out — a net gain of 11 holders — while 70 added to existing stakes and 53 trimmed.

The largest buyer was Prosight Management, opening a new position worth an estimated $6.62M. The largest seller was Oak Hill Advisors, cutting an estimated $25.9M.

  • 190 institutional investors held Emergent Biosolutions (EBS) as of Q1 2026, up from 183 in Q4 2025.
  • Funds reported $361M of Emergent Biosolutions stock for Q1 2026, down 33% quarter-over-quarter.
  • 37 funds opened new Emergent Biosolutions positions in Q1 2026 and 26 closed out, a net change of +11 holders.
  • The largest Emergent Biosolutions buyer in Q1 2026 was Prosight Management, an estimated $6.62M added.
  • The largest Emergent Biosolutions seller in Q1 2026 was Oak Hill Advisors, an estimated $25.9M sold.

Based on aggregated 13F filings for Q1 2026.