ALT

Altimmune Inc$2.85 4.36%
Health CareUSCUSIP 02155H200· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
148
-3 QoQ
13F Value (tracked)
$210.2M
Insider Net · 180d
$198K
3↑ 0↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)26 adding · 8 trimming
Insider net (180d)+$198K

Price & smart-money activity

$2.85 4.36%5Y -69.7%
$0.55$6.42$12.29$18.16$24.032021202220232024202520262413152218102519153261720243312322261122301934213230220302824225253027272954714542292
Hover for who · click for detailEnd-of-day closing prices52w $2.59 – $6.18

Top institutional holders

148 tracked 13F filers
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$39.4M
12.8M
+32%
Added · +3.1M sh
Q1 2026
2STATE STREET CORP
$22.0M
7.1M
+40%
Added · +2.0M sh
Q1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$17.4M
5.7M
New
+5.7M sh
Q1 2026
4VANGUARD PORTFOLIO MANAGEMENT LLC
$16.6M
5.4M
New
+5.4M sh
Q1 2026
5MARSHALL WACE, LLP
$12.4M
4.0M
+335%
Added · +3.1M sh
Q1 2026
6MILLENNIUM MANAGEMENT LLC
$10.0M
3.3M
16×
Added · +3.1M sh
Q1 2026
7GEODE CAPITAL MANAGEMENT, LLC
$9.6M
3.1M
+36%
Added · +815K sh
Q1 2026
8Alyeska Investment Group, L.P.
$8.1M
2.6M
New
+2.6M sh
Q1 2026
9TWO SIGMA INVESTMENTS, LP
$7.6M
2.5M
+96%
Added · +1.2M sh
Q1 2026
10Nuveen, LLC
$7.2M
2.3M
+88%
Added · +1.1M sh
Q1 2026
11GOLDMAN SACHS GROUP INC
$4.2M
1.4M
+0.1%
Added · +1K sh
Q1 2026
12SUSQUEHANNA INTERNATIONAL GROUP, LLP
$4.1M
1.3M
−3.1%
Reduced · −43K sh
Q1 2026
13DIMENSIONAL FUND ADVISORS LP
$3.2M
1.0M
+269%
Added · +762K sh
Q1 2026
14NORTHERN TRUST CORP
$3.1M
997K
+39%
Added · +281K sh
Q1 2026
15UBS Group AG
$2.8M
905K
+41%
Added · +263K sh
Q1 2026
16VANGUARD FIDUCIARY TRUST CO
$2.7M
869K
New
+869K sh
Q1 2026
17MORGAN STANLEY
$2.4M
775K
−43%
Reduced · −585K sh
Q1 2026
18D. E. Shaw & Co., Inc.
$2.2M
727K
−46%
Reduced · −617K sh
Q1 2026
19FMR LLC
$2.1M
674K
+19%
Added · +110K sh
Q1 2026
20SCHRODER INVESTMENT MANAGEMENT GROUP
$1.9M
668K
+42%
Added · +199K sh
Q1 2026
21TANG CAPITAL MANAGEMENT LLC
$2.1M
666K
−69%
Reduced · −1.5M sh
Q1 2026
22Point72 Asset Management, L.P.
$2.0M
665K
New
+665K sh
Q1 2026
23BANK OF AMERICA CORP /DE/
$1.8M
570K
+49%
Added · +186K sh
Q1 2026
24Hennion & Walsh Asset Management, Inc.
$1.6M
518K
+157%
Added · +316K sh
Q2 2026
25CITADEL ADVISORS LLC
$1.4M
449K
−66%
Reduced · −889K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
6
funds
Added
20
funds
Reduced
8
funds
Exited
0
funds

Funds that own ALT also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT65 funds$25.5B
AMAZON.COM INCAMZN65 funds$20.5B
BROADCOM INCAVGO65 funds$14.7B
META PLATFORMS INC-CLASS AMETA65 funds$13.1B
ELI LILLY & COLLY65 funds$6.3B
NVIDIA CORPNVDA64 funds$35.0B
VISA INC-CLASS A SHARESV64 funds$5.9B
COSTCO WHOLESALE CORPCOST64 funds$5.1B
NETFLIX INCNFLX64 funds$4.4B
ADVANCED MICRO DEVICESAMD64 funds$3.5B
CHEVRON CORPCVX64 funds$3.5B
UNITEDHEALTH GROUP INCUNH64 funds$3.3B

Ranked by how many of ALT's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$198K
3 insiders
Sells · 180d
$0
0 insiders
Net
$198K
5 P/S txns
Signal
Net Buying
open-market
DateInsiderRoleActionSharesValue
Apr 6, 2026GILL JOHNDirectorBuy (P)9K$31K
Apr 1, 2026WEAVER GREGORY LChief Financial OfficerBuy (P)10K$31K
Apr 1, 2026Durso Jerome BenedictPresident and CEO, DirectorBuy (P)15K$47K
Mar 6, 2026WEAVER GREGORY LChief Financial OfficerBuy (P)5K$18K
Mar 6, 2026Durso Jerome BenedictPresident and CEO, DirectorBuy (P)20K$71K
Jan 8, 2026Pisano WayneDirectorBuy (P)5K$20K
Jan 5, 2026Sohn Catherine A.DirectorBuy (P)500$2K
Dec 29, 2025Jorkasky DianeDirectorBuy (P)527$2K
Dec 23, 2025GILL JOHNDirectorBuy (P)13K$51K
Dec 22, 2025Durso Jerome BenedictDirectorBuy (P)13K$52K
Mar 17, 2025Sohn Catherine A.DirectorBuy (P)1K$6K
Mar 13, 2025WEAVER GREGORY LChief Financial OfficerBuy (P)10K$52K

Institutional ownership over time

146 funds+20 since Q3 2024
075149Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $209.2M

Recent filings

15 shown

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Ask your agent what changed in ALT

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/ALT/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for ALT.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ALT. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.