William Blair & Company
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William Blair & Company’s PDS Biotechnology PDSB Stock Holding History

William Blair & Company’s Portfolio PDSB Stock Details PDSB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$182K Buy
300,000
+50,000
+20% +$37.6K ﹤0.01% 1506
2025
Q4 		$192K Hold
250,000
– – ﹤0.01% 1475
2025
Q3 		$253K Hold
250,000
– – ﹤0.01% 1372
2025
Q2 		$333K Sell
250,000
-7,200
-3% -$9.78K ﹤0.01% 1222
2025
Q1 		$306K Buy
257,200
+99,700
+63% +$142K ﹤0.01% 1251
2024
Q4 		$257K Buy
157,500
+35,757
+29% +$94.6K ﹤0.01% 1345
2024
Q3 		$465K Hold
121,743
– – ﹤0.01% 1137
2024
Q2 		$357K Buy
121,743
+81,743
+204% +$262K ﹤0.01% 1207
2024
Q1 		$158K Buy
+40,000
New +$206K ﹤0.01% 1445

Other funds holding PDSB

VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
IWA
Inspirion Wealth Advisors Libertyville, Illinois $874M AUM 16.23% 1-Year Est. Return
AC
Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

William Blair & Company's PDSB Position: Q1 2026 in Review

William Blair & Company increased its PDS Biotechnology (PDSB) stake by 20% in Q1 2026, buying an estimated $37.6K and bringing the position to 300,000 shares worth $182K. The position accounts for ﹤0.01% of the portfolio, ranked #1506.

William Blair & Company first reported a position in PDSB in Q1 2024 and has held it in 9 quarters since. The position peaked at $465K in Q3 2024. 41 funds tracked by Wall St. Rank hold PDSB as of Q1 2026.

  • William Blair & Company held 300,000 shares of PDS Biotechnology worth $182K as of Q1 2026.
  • William Blair & Company bought 50,000 PDS Biotechnology shares in Q1 2026, an estimated $37.6K.
  • PDS Biotechnology made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #1506 holding.
  • William Blair & Company first reported a position in PDS Biotechnology in Q1 2024 and has held it in 9 quarters since.
  • William Blair & Company's PDS Biotechnology position peaked at $465K in Q3 2024.
  • 41 funds tracked by Wall St. Rank held PDS Biotechnology as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.