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UPB

Parkman Healthcare Partners’s Upstream Bio Inc UPB Stock Holding History

Parkman Healthcare Partners’s Portfolio UPB Stock Details UPB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$7.08M Sell
786,783
-47,776
-6% -$860K 0.73% 47
2025
Q4 		$22.7M Sell
834,559
-8,943
-1% -$223K 2.16% 15
2025
Q3 		$15.9M Buy
843,502
+127,998
+18% +$1.99M 1.66% 18
2025
Q2 		$7.86M Buy
715,504
+481,941
+206% +$4.45M 0.9% 41
2025
Q1 		$1.43M Buy
+233,563
New +$2.23M 0.17% 81

Other funds holding UPB

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DC
Decheng Capital Menlo Park, California $661M AUM 299.97% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $352M AUM 220.14% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
YIH
Y-Intercept (HK) Hong Kong $5.05B AUM 17.89% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Parkman Healthcare Partners's UPB Position: Q1 2026 in Review

Parkman Healthcare Partners reduced its Upstream Bio Inc (UPB) stake by 5.7% in Q1 2026, selling an estimated $860K and leaving 786,783 shares worth $7.08M. The position accounts for 0.73% of the portfolio, ranked #47.

Parkman Healthcare Partners first reported a position in UPB in Q1 2025 and has held it in 5 quarters since. The position peaked at $22.7M in Q4 2025. 140 funds tracked by Wall St. Rank hold UPB as of Q1 2026.

  • Parkman Healthcare Partners held 786,783 shares of Upstream Bio Inc worth $7.08M as of Q1 2026.
  • Parkman Healthcare Partners sold 47,776 Upstream Bio Inc shares in Q1 2026, an estimated $860K.
  • Upstream Bio Inc made up 0.73% of Parkman Healthcare Partners's portfolio in Q1 2026, its #47 holding.
  • Parkman Healthcare Partners first reported a position in Upstream Bio Inc in Q1 2025 and has held it in 5 quarters since.
  • Parkman Healthcare Partners's Upstream Bio Inc position peaked at $22.7M in Q4 2025.
  • 140 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q1 2026.

Based on Parkman Healthcare Partners's 13F filing for Q1 2026, filed 15 May 2026.