TCM
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Tang Capital Management’s Altimmune ALT Stock Holding History

Tang Capital Management’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 		$2.05M Sell
666,022
-1,465,285
-69% -$6.22M 0.1% 45
2025
Q4 		$7.69M Hold
2,131,307
– – 0.38% 48
2025
Q3 		$8.04M Sell
2,131,307
-618,693
-22% -$2.39M 0.31% 72
2025
Q2 		$10.6M Hold
2,750,000
– – 0.54% 48
2025
Q1 		$13.8M Hold
2,750,000
– – 0.76% 36
2024
Q4 		$19.8M Hold
2,750,000
– – 1.31% 19
2024
Q3 		$16.9M Hold
2,750,000
– – 1.21% 24
2024
Q2 		$18.3M Hold
2,750,000
– – 1.86% 13
2024
Q1 		$28M Hold
2,750,000
– – 2.91% 6
2023
Q4 		$30.9M Hold
2,750,000
– – 2.86% 9
2023
Q3 		$7.15M Hold
2,750,000
– – 1.01% 34
2023
Q2 		$9.71M Hold
2,750,000
– – 1.43% 22
2023
Q1 		$11.6M Buy
2,750,000
+49,550
+2% +$589K 1.73% 18
2022
Q4 		$44.4M Buy
2,700,450
+100,000
+4% +$1.12M 6.45% 2
2022
Q3 		$33.2M Sell
2,600,450
-1,000,000
-28% -$14.8M 4.07% 5
2022
Q2 		$42.1M Buy
3,600,450
+1,026,706
+40% +$6.33M 6.39% 3
2022
Q1 		$15.7M Buy
2,573,744
+973,744
+61% +$7.17M 3.14% 8
2021
Q4 		$14.7M Hold
1,600,000
– – 2.95% 8
2021
Q3 		$18.1M Buy
1,600,000
+816,593
+104% +$9.93M 3.76% 9
2021
Q2 		$7.72M Buy
+783,407
New +$10.7M 1.54% 9

Other funds holding ALT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

Tang Capital Management's ALT Position: Q1 2026 in Review

Tang Capital Management reduced its Altimmune (ALT) stake by 69% in Q1 2026, selling an estimated $6.22M and leaving 666,022 shares worth $2.05M. The position accounts for 0.1% of the portfolio, ranked #45.

Tang Capital Management first reported a position in ALT in Q2 2021 and has held it in 20 quarters since. The position peaked at $44.4M in Q4 2022. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.

  • Tang Capital Management held 666,022 shares of Altimmune worth $2.05M as of Q1 2026.
  • Tang Capital Management sold 1,465,285 Altimmune shares in Q1 2026, an estimated $6.22M.
  • Altimmune made up 0.1% of Tang Capital Management's portfolio in Q1 2026, its #45 holding.
  • Tang Capital Management first reported a position in Altimmune in Q2 2021 and has held it in 20 quarters since.
  • Tang Capital Management's Altimmune position peaked at $44.4M in Q4 2022.
  • 173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.

Based on Tang Capital Management's 13F filing for Q1 2026, filed 15 May 2026.