ALTIMMUNE INC

Ticker: ALT CUSIP: 02155H200 Class: COM NEW

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 715,991 Value ($000) $2,585 Avg Close $4.36 Range $3.52 - $6.03

Q3 2025

Shares 657,016 Value ($000) $2,477 Avg Close $3.86 Range $3.33 - $5.03

Q2 2025

Shares 640,346 Value ($000) $2,478 Avg Close $5.41 Range $2.90 - $7.73

Q1 2025

Shares 636,706 Value ($000) $3,184 Avg Close $6.33 Range $4.78 - $7.83

Q4 2024

Shares 665,916 Value ($000) $4,801 Avg Close $7.64 Range $5.86 - $11.16

Q3 2024

Shares 629,998 Value ($000) $3,868 Avg Close $6.77 Range $5.28 - $8.26

Q2 2024

Shares 527,297 Value ($000) $3,507 Avg Close $7.38 Range $5.64 - $11.01

Q1 2024

Shares 493,968 Value ($000) $5,029 Avg Close $10.17 Range $7.92 - $14.84

Q4 2023

Shares 473,829 Value ($000) $5,331 Avg Close $4.18 Range $2.09 - $12.51

Q3 2023

Shares 450,410 Value ($000) $1,171 Avg Close $2.87 Range $2.34 - $3.58

Q2 2023

Shares 422,436 Value ($000) $1,491 Avg Close $4.49 Range $3.32 - $6.08

Q1 2023

Shares 142,039 Value ($000) $599 Avg Close $11.88 Range $4.07 - $17.17

Q4 2022

Shares 139,918 Value ($000) $2,302 Avg Close $11.23 Range $8.29 - $16.72

Q3 2022

Shares 111,389 Value ($000) $1,422 Avg Close $14.76 Range $10.15 - $23.49

Q2 2022

Shares 101,789 Value ($000) $1,191 Avg Close $6.17 Range $3.83 - $12.03

Q1 2022

Shares 360,127 Value ($000) $2,193 Avg Close $7.36 Range $5.78 - $9.67

Q4 2021

Shares 376,484 Value ($000) $3,449 Avg Close $10.63 Range $8.40 - $12.97

Q3 2021

Shares 387,290 Value ($000) $4,381 Avg Close $12.16 Range $8.10 - $17.26

Q2 2021

Shares 332,290 Value ($000) $3,274 Avg Close $13.67 Range $9.60 - $19.46

Q1 2021

Shares 90,653 Value ($000) $1,281 Avg Close $16.17 Range $11.19 - $24.61

Q4 2020

Shares 104,796 Value ($000) $1,182 Avg Close $11.78 Range $7.80 - $16.25

Q3 2020

Shares 114,646 Value ($000) $1,513 Avg Close $19.99 Range $8.60 - $35.10

Q2 2020

Shares 97,789 Value ($000) $1,048 Avg Close $5.49 Range $2.85 - $12.74

Q1 2020

Shares 12,993 Value ($000) $42 Avg Close $2.30 Range $1.60 - $4.45

Q4 2019

Shares 12,993 Value ($000) $25 Avg Close $1.85 Range $1.51 - $2.24

Q3 2019

Shares 15,856 Value ($000) $31 Avg Close $2.22 Range $1.91 - $2.95

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	715,991	$2,585	$4.36	$3.52 - $6.03
Q3 2025	657,016	$2,477	$3.86	$3.33 - $5.03
Q2 2025	640,346	$2,478	$5.41	$2.90 - $7.73
Q1 2025	636,706	$3,184	$6.33	$4.78 - $7.83
Q4 2024	665,916	$4,801	$7.64	$5.86 - $11.16
Q3 2024	629,998	$3,868	$6.77	$5.28 - $8.26
Q2 2024	527,297	$3,507	$7.38	$5.64 - $11.01
Q1 2024	493,968	$5,029	$10.17	$7.92 - $14.84
Q4 2023	473,829	$5,331	$4.18	$2.09 - $12.51
Q3 2023	450,410	$1,171	$2.87	$2.34 - $3.58
Q2 2023	422,436	$1,491	$4.49	$3.32 - $6.08
Q1 2023	142,039	$599	$11.88	$4.07 - $17.17
Q4 2022	139,918	$2,302	$11.23	$8.29 - $16.72
Q3 2022	111,389	$1,422	$14.76	$10.15 - $23.49
Q2 2022	101,789	$1,191	$6.17	$3.83 - $12.03
Q1 2022	360,127	$2,193	$7.36	$5.78 - $9.67
Q4 2021	376,484	$3,449	$10.63	$8.40 - $12.97
Q3 2021	387,290	$4,381	$12.16	$8.10 - $17.26
Q2 2021	332,290	$3,274	$13.67	$9.60 - $19.46
Q1 2021	90,653	$1,281	$16.17	$11.19 - $24.61
Q4 2020	104,796	$1,182	$11.78	$7.80 - $16.25
Q3 2020	114,646	$1,513	$19.99	$8.60 - $35.10
Q2 2020	97,789	$1,048	$5.49	$2.85 - $12.74
Q1 2020	12,993	$42	$2.30	$1.60 - $4.45
Q4 2019	12,993	$25	$1.85	$1.51 - $2.24
Q3 2019	15,856	$31	$2.22	$1.91 - $2.95