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NBP

Siren LLC’s NovaBridge Biosciences American Depositary Shares NBP Stock Holding History

Siren LLC’s Portfolio NBP Stock Details NBP Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$3.91M Sell
2,004,739
-995,261
-33% -$2.03M 0.08% 96
2026
Q1 		$7.38M Hold
3,000,000
– – 0.2% 66
2025
Q4 		$11.9M Buy
3,000,000
+1,834,043
+157% +$8.12M 0.36% 49
2025
Q3 		$4.41M Buy
+1,165,957
New +$3.96M 0.17% 69

Other funds holding NBP

HA
HHLR Advisors Grand Cayman, Cayman Islands $832M AUM 32.38% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
ACM
AIHC Capital Management Central $104M AUM
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
CS
Candriam SCA Strassen, Luxembourg, Luxembourg $22.2B AUM 58.34% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Siren LLC's NBP Position: Q2 2026 in Review

Siren LLC reduced its NovaBridge Biosciences American Depositary Shares (NBP) stake by 33% in Q2 2026, selling an estimated $2.03M and leaving 2,004,739 shares worth $3.91M. The position accounts for 0.08% of the portfolio, ranked #96.

Siren LLC first reported a position in NBP in Q3 2025 and has held it in 4 quarters since. The position peaked at $11.9M in Q4 2025. 49 funds tracked by Wall St. Rank hold NBP as of Q2 2026.

  • Siren LLC held 2,004,739 shares of NovaBridge Biosciences American Depositary Shares worth $3.91M as of Q2 2026.
  • Siren LLC sold 995,261 NovaBridge Biosciences American Depositary Shares shares in Q2 2026, an estimated $2.03M.
  • NovaBridge Biosciences American Depositary Shares made up 0.08% of Siren LLC's portfolio in Q2 2026, its #96 holding.
  • Siren LLC first reported a position in NovaBridge Biosciences American Depositary Shares in Q3 2025 and has held it in 4 quarters since.
  • Siren LLC's NovaBridge Biosciences American Depositary Shares position peaked at $11.9M in Q4 2025.
  • 49 funds tracked by Wall St. Rank held NovaBridge Biosciences American Depositary Shares as of Q2 2026.

Based on Siren LLC's 13F filing for Q2 2026, filed 13 Aug 2026.