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The company

Altimmune, Inc.

ALT · Nasdaq

Health CareBiotechnologyNot moving yetGLP-1

ALT stood above a rising 150-day average in 2 of the last 52 weekly readings, and has been out of that trend for the last 33 weeks. It is 26.9% below that average now. Biotechnology: 15% of its 561 stocks in an uptrend (−17 points in four weeks); Health Care: 25% (−11 points in four weeks).

SEC filings

Statistics

Rotation: Not moving yet
Weeks in an uptrend: out for 33
Industry in uptrend: 15% -17 in 4 wk
Insider buys, 12 months: $635K
Insider sales, 12 months: $0
Officials’ trades on record: 0
Institutions holding: 205 (+41)

In the rotation

Each square a week: lit when it closed above a rising 150-day average. 2 of 52 weeks.

17 Apr – 16 Oct

Biotechnology: Few of its stocks are in an uptrend and the share has fallen sharply over four weeks. Health Care: A minority of its stocks are in an uptrend and the share has fallen sharply over four weeks.

Money in and out

1 Nov 2024 – 1 Oct 2026

Open-market buys above the line and sales below, in dollars.

Congress and officials

No member of Congress or official has disclosed a trade in it.

Insiders

Buy orders, 12 months11

Sale orders, 12 months0

Buyers · sellers6 · 0

Who	Did	Shares	Traded
Jerome Benedict DursoPresident and CEO	bought	15,000at $2.95	13 Aug 2026filed 13 Aug 2026
John GillDirector	bought	9,200at $3.41	6 Apr 2026filed 6 Apr 2026
Gregory L. WeaverChief Financial Officer	bought	10,000at $3.15	1 Apr 2026filed 1 Apr 2026
Jerome Benedict DursoPresident and CEO	bought	15,000at $3.14	1 Apr 2026filed 1 Apr 2026
Gregory L. WeaverChief Financial Officer	bought	5,000at $3.54	6 Mar 2026filed 9 Mar 2026
Jerome Benedict DursoPresident and CEO	bought	20,000at $3.54	6 Mar 2026filed 9 Mar 2026
Wayne PisanoDirector	bought	5,000at $4.08	8 Jan 2026filed 9 Jan 2026
Catherine A. SohnDirector	bought	500at $4.24	5 Jan 2026filed 5 Jan 2026

Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.

Institutions

Holders205+41 on the quarter

New · exited59 · 19

Reported value$456.4M

Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.

Manager	Shares	Change
BlackRock, Inc.added · filed 7 Aug 2026	20,385,284$62.0M	+7,590,007+59.3%
Deep Track Capital, LPnew · filed 14 Aug 2026	19,250,000$58.5M	+19,250,000
STATE STREET CORPadded · filed 7 Aug 2026	12,098,540$36.8M	+4,952,990+69.3%
TCG Crossover Management, LLCnew · filed 14 Aug 2026	10,000,000$30.4M	+10,000,000
VANGUARD CAPITAL MANAGEMENT LLCadded · filed 13 Aug 2026	8,177,752$24.9M	+2,519,703+44.5%
VANGUARD PORTFOLIO MANAGEMENT LLCadded · filed 13 Aug 2026	7,330,265$22.3M	+1,948,263+36.2%
MARSHALL WACE, LLPadded · filed 13 Aug 2026	6,841,055$20.8M	+2,823,154+70.3%
VIKING GLOBAL INVESTORS LPnew · filed 14 Aug 2026	6,700,000$20.4M	+6,700,000
RA CAPITAL MANAGEMENT, L.P.new · filed 14 Aug 2026	6,500,000$19.8M	+6,500,000
GEODE CAPITAL MANAGEMENT, LLCadded · filed 12 Aug 2026	5,011,314$15.2M	+1,904,218+61.3%