Latest Institutional Purchases of Altimmune, Inc. (ALT)
This list provides information on the latest institutional transactions involving Altimmune, Inc. (ALT) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 14, 2025
Q3 2025
|
Two Sigma Investments, LP
New York, NY |
BUY
|
- |
1.56M+ 356.65% |
$5.27M - $7.42M
|
2M
$8.33M
|
|
|
Nov 14, 2025
Q3 2025
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
BUY
|
- |
1.3M+ 1005.57% |
$4.39M - $6.18M
|
1.43M
$5.96M
|
|
|
Nov 07, 2025
Q3 2025
|
Vanguard Group Inc
Valley Forge, PA |
BUY
|
- |
1.21M+ 23.35% |
$4.08M - $5.74M
|
6.37M
$26.6M
|
|
|
Nov 14, 2025
Q3 2025
|
State Street Corp
Boston, MA |
BUY
|
- |
848K+ 30.78% |
$2.86M - $4.03M
|
3.6M
$15M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
PUT |
827K+ 96.2% |
$2.79M - $3.94M
|
1.69M
$7.03M
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
- |
759K+ 144.91% |
$2.56M - $3.61M
|
1.28M
$5.35M
|
|
|
Nov 14, 2025
Q3 2025
|
Morgan Stanley
New York, NY |
BUY
|
- |
656K+ 78.48% |
$2.22M - $3.12M
|
1.49M
$6.22M
|
|
|
Nov 14, 2025
Q3 2025
|
Squarepoint Ops LLC
New York, NY |
BUY
|
- |
585KNew |
$1.98M - $2.78M
|
585K
$2.44M
|
|
|
Nov 14, 2025
Q3 2025
|
Steven Cohen
Point72 Asset Management, L.P. | Stamford, Ct
|
BUY
|
- |
477KNew |
$1.61M - $2.27M
|
477K
$1.99M
|
|
|
Nov 14, 2025
Q3 2025
|
D. E. Shaw & Co., Inc.
New York, NY |
BUY
|
- |
309K+ 603.1% |
$1.04M - $1.47M
|
360K
$1.5M
|
|
|
Nov 14, 2025
Q3 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
BUY
|
- |
289K+ 369.49% |
$978K - $1.38M
|
368K
$1.53M
|
|
|
Nov 13, 2025
Q3 2025
|
Ubs Group Ag
|
BUY
|
CALL |
286KNew |
$966K - $1.36M
|
286K
$1.19M
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
- |
280KNew |
$947K - $1.33M
|
280K
$1.17M
|
|
|
Nov 14, 2025
Q3 2025
|
Ikarian Capital, LLC
Dallas, TX |
BUY
|
CALL |
173K+ 20.85% |
$583K - $821K
|
1M
$4.17M
|
|
|
Nov 14, 2025
Q3 2025
|
Exodus Point Capital Management, LP
New York, NY |
BUY
|
- |
139K+ 353.85% |
$470K - $661K
|
178K
$743K
|
|
|
Nov 14, 2025
Q3 2025
|
Sculptor Capital LP
New York, NY |
BUY
|
PUT |
126K+ 83.25% |
$425K - $598K
|
277K
$1.15M
|
|
|
Nov 14, 2025
Q3 2025
|
Sculptor Capital LP
New York, NY |
BUY
|
- |
126K+ 83.25% |
$425K - $598K
|
277K
$1.15M
|
|
|
Nov 13, 2025
Q3 2025
|
Peak6 LLC
Chicago, IL |
BUY
|
CALL |
125K+ 565.16% |
$422K - $595K
|
147K
$613K
|
|
|
Nov 13, 2025
Q3 2025
|
Jump Financial, LLC
Chicago, IL |
BUY
|
- |
116KNew |
$391K - $551K
|
116K
$483K
|
|
|
Nov 12, 2025
Q3 2025
|
Simplex Trading, LLC
|
BUY
|
- |
114K+ 113.78% |
$384K - $541K
|
214K
$891K
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna Portfolio Strategies, LLC
Bala Cynwyd, PA |
BUY
|
- |
101K+ 119.65% |
$341K - $480K
|
185K
$772K
|
|
|
Nov 14, 2025
Q3 2025
|
Brevan Howard Capital Management LP
St. Helier, Y9 |
BUY
|
- |
89.7K+ 67.36% |
$303K - $427K
|
223K
$930K
|
|
|
Nov 12, 2025
Q3 2025
|
Geode Capital Management, LLC
Boston, MA |
BUY
|
- |
82.5K+ 4.26% |
$279K - $393K
|
2.02M
$8.41M
|
|
|
Oct 22, 2025
Q3 2025
|
Commonwealth Equity Services, LLC
|
BUY
|
- |
75.2K+ 76.0% |
$254K - $358K
|
174K
$726K
|
|
|
Nov 07, 2025
Q3 2025
|
Beirne Wealth Consulting Services, LLC
|
BUY
|
- |
68K+ 19.86% |
$230K - $324K
|
410K
$1.71M
|
|
|
Nov 14, 2025
Q3 2025
|
Goldman Sachs Group Inc
New York, NY |
BUY
|
- |
63K+ 12.62% |
$213K - $300K
|
562K
$2.34M
|
|
|
Nov 14, 2025
Q3 2025
|
Boothbay Fund Management, LLC
New York, NY |
BUY
|
CALL |
62.9K+ 20.89% |
$213K - $299K
|
364K
$1.52M
|
|
|
Nov 13, 2025
Q3 2025
|
Baird Financial Group, Inc.
Milwaukee, WI |
BUY
|
- |
60K+ 100.94% |
$203K - $286K
|
119K
$498K
|
|
|
Oct 27, 2025
Q3 2025
|
Janney Montgomery Scott LLC
|
BUY
|
- |
58.6KNew |
$198K - $279K
|
58.6K
$244K
|
|
|
Nov 13, 2025
Q3 2025
|
Invesco Ltd.
Atlanta, GA |
BUY
|
- |
55.1K+ 51.54% |
$186K - $262K
|
162K
$675K
|
|
|
Nov 12, 2025
Q3 2025
|
Rafferty Asset Management, LLC
New York, NY |
BUY
|
- |
54.2K+ 53.11% |
$183K - $258K
|
156K
$651K
|
|
|
Nov 14, 2025
Q3 2025
|
Bridgeway Capital Management, LLC
Houston, TX |
BUY
|
- |
50.6KNew |
$171K - $241K
|
50.6K
$211K
|
|
|
Nov 12, 2025
Q3 2025
|
Jefferies Financial Group Inc.
New York, NY |
BUY
|
PUT |
50KNew |
$169K - $238K
|
50K
$209K
|
|
|
Nov 12, 2025
Q3 2025
|
Barclays PLC
London, X0 |
BUY
|
- |
48.2K+ 16.5% |
$163K - $229K
|
340K
$1.42M
|
|
|
Nov 14, 2025
Q3 2025
|
Engineers Gate Manager LP
New York, NY |
BUY
|
- |
41KNew |
$139K - $195K
|
41K
$171K
|
|
|
Nov 14, 2025
Q3 2025
|
Sig Brokerage, LP
Bala Cynwyd, PA |
BUY
|
- |
34.5KNew |
$117K - $164K
|
34.5K
$144K
|
|
|
Oct 27, 2025
Q3 2025
|
Wealth Effects LLC
|
BUY
|
- |
28.1K+ 88.5% |
$95K - $134K
|
59.9K
$250K
|
|
|
Nov 12, 2025
Q3 2025
|
Dld Asset Management, LP
New York, NY |
BUY
|
- |
27.4K+ 121.24% |
$92.6K - $130K
|
50K
$209K
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
PUT |
26.3K+ 81.17% |
$88.9K - $125K
|
58.7K
$245K
|
|
|
Nov 07, 2025
Q3 2025
|
W.G. Shaheen & Associates Dba Whitney & CO
|
BUY
|
CALL |
25.5KNew |
$86.2K - $121K
|
25.5K
$106K
|
|
|
Nov 06, 2025
Q3 2025
|
High Tower Advisors, LLC
Chicago, IL |
BUY
|
PUT |
20.6KNew |
$69.6K - $98.1K
|
20.6K
$85.9K
|
|
|
Nov 12, 2025
Q3 2025
|
Stifel Financial Corp
St. Louis, MO |
BUY
|
- |
18.9K+ 45.36% |
$63.7K - $89.7K
|
60.4K
$252K
|
|
|
Oct 23, 2025
Q3 2025
|
Sg Americas Securities, LLC
|
BUY
|
- |
18KNew |
$61K - $85.9K
|
18K
$75.2K
|
|
|
Nov 06, 2025
Q3 2025
|
Rhumbline Advisers
Boston, MA |
BUY
|
- |
16.8K+ 14.71% |
$56.7K - $79.8K
|
131K
$545K
|
|
|
Nov 14, 2025
Q3 2025
|
Northern Trust Corp
Chicago, IL |
BUY
|
- |
16.7K+ 2.6% |
$56.3K - $79.3K
|
657K
$2.74M
|
|
|
Nov 10, 2025
Q3 2025
|
Ever Source Wealth Advisors, LLC
|
BUY
|
- |
15.9K+ 13260.83% |
$53.8K - $75.7K
|
16K
$66.9K
|
|
|
Nov 14, 2025
Q3 2025
|
Sherbrooke Park Advisers LLC
White Plains, NY |
BUY
|
- |
15.9KNew |
$53.8K - $75.7K
|
15.9K
$66.3K
|
|
|
Nov 14, 2025
Q3 2025
|
Walleye Capital LLC
Plymouth, MN |
BUY
|
- |
15.5KNew |
$52.5K - $73.9K
|
15.5K
$64.7K
|
|
|
Nov 12, 2025
Q3 2025
|
Jefferies Financial Group Inc.
New York, NY |
BUY
|
- |
15K+ 42.86% |
$50.7K - $71.4K
|
50K
$209K
|
|
|
Nov 14, 2025
Q3 2025
|
Walleye Trading LLC
Plymouth, MN |
BUY
|
- |
14.8KNew |
$49.9K - $70.3K
|
14.8K
$61.5K
|
|