Wellington Management Group
ALT icon

Wellington Management Group’s Altimmune ALT Stock Holding History

Wellington Management 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 		$764K Sell
248,158
-9,113
-4% -$38.7K ﹤0.01% 1721
2025
Q4 		$929K Sell
257,271
-7,531
-3% -$32.8K ﹤0.01% 1725
2025
Q3 		$998K Buy
264,802
+12,936
+5% +$49.9K ﹤0.01% 1779
2025
Q2 		$975K Buy
251,866
+26,912
+12% +$146K ﹤0.01% 1728
2025
Q1 		$1.12M Buy
224,954
+19,721
+10% +$125K ﹤0.01% 1680
2024
Q4 		$1.48M Buy
205,233
+8,001
+4% +$61.1K ﹤0.01% 1646
2024
Q3 		$1.21M Buy
197,232
+42,553
+28% +$288K ﹤0.01% 1673
2024
Q2 		$1.03M Sell
154,679
-2,235
-1% -$16.5K ﹤0.01% 1665
2024
Q1 		$1.6M Buy
+156,914
New +$1.6M ﹤0.01% 1577
2017
Q1 		– Sell
-160
Closed -$156K – 2235
2016
Q4 		$156K Buy
+160
New +$143K ﹤0.01% 2152

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

Wellington Management Group's ALT Position: Q1 2026 in Review

Wellington Management Group reduced its Altimmune (ALT) stake by 3.5% in Q1 2026, selling an estimated $38.7K and leaving 248,158 shares worth $764K. The position accounts for ﹤0.01% of the portfolio, ranked #1721.

Wellington Management Group first reported a position in ALT in Q4 2016 and has held it in 10 quarters since. The position peaked at $1.6M in Q1 2024. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.

  • Wellington Management Group held 248,158 shares of Altimmune worth $764K as of Q1 2026.
  • Wellington Management Group sold 9,113 Altimmune shares in Q1 2026, an estimated $38.7K.
  • Altimmune made up ﹤0.01% of Wellington Management Group's portfolio in Q1 2026, its #1721 holding.
  • Wellington Management Group first reported a position in Altimmune in Q4 2016 and has held it in 10 quarters since.
  • Wellington Management Group's Altimmune position peaked at $1.6M in Q1 2024.
  • 173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.

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