JFG
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Jefferies Financial Group’s Altimmune ALT Stock Holding History

Jefferies Financial Group’s Portfolio ALT Stock Details ALT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-50,000
Closed -$181K – 1710
2025
Q4 		$181K Hold
50,000
– – ﹤0.01% 1637
2025
Q3 		$189K Buy
+50,000
New +$193K ﹤0.01% 1291
2025
Q1 		– Sell
-25,000
Closed -$180K – 1587
2024
Q4 		$180K Buy
+25,000
New +$191K ﹤0.01% 1397

Other funds holding ALT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.1B AUM 21.36% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jefferies Financial Group's ALT Position: Q2 2026 in Review

Jefferies Financial Group held its Altimmune (ALT) position steady in Q2 2026 at 110,000 shares worth $334K. The position accounts for ﹤0.01% of the portfolio, ranked #1357.

Jefferies Financial Group first reported a position in ALT in Q4 2023 and has held it in 10 quarters since. The position peaked at $2.43M in Q4 2023. 210 funds tracked by Wall St. Rank hold ALT as of Q2 2026.

  • Jefferies Financial Group held 110,000 shares of Altimmune worth $334K as of Q2 2026.
  • Jefferies Financial Group left its Altimmune share count unchanged in Q2 2026.
  • Altimmune made up ﹤0.01% of Jefferies Financial Group's portfolio in Q2 2026, its #1357 holding.
  • Jefferies Financial Group first reported a position in Altimmune in Q4 2023 and has held it in 10 quarters since.
  • Jefferies Financial Group's Altimmune position peaked at $2.43M in Q4 2023.
  • 210 funds tracked by Wall St. Rank held Altimmune as of Q2 2026.

Based on Jefferies Financial Group's 13F filing for Q2 2026, filed 17 Aug 2026.