InsiderTrades

Harris Matthew Scott

SEC CIK 1787762 · EDGAR

Buying vs selling by month open-market trades, last 56 months, ALT
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
ALTAltimmune, Inc.Chief Medical Off 16.1K $42.2K $225.6K 272021-07-312025-07-31

Most active insiders at ALT, 12 months

#InsiderTitleBoughtSold
1 Durso Jerome BenedictPres, CEO, Dir $213.8K—
2 GILL JOHNDir $82.6K—
3 WEAVER GREGORY LCFO $49.2K—
4 Pisano WayneDir $20.4K—
5 Sohn Catherine A.Dir $2,120—
6 Jorkasky DianeDir $2,003—
7 Jordt Raymond MChief Business Off ——
8 Roberts M ScotCSO ——
9 Richardson Linda MChief Commercial Off ——
10 Garg Vipin KDir ——

Harris Matthew Scott made no open-market trades at ALT in the last 12 months.

Transactions 27

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2025-08-04 2025-07-31 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off A - Grant $3.14 +2,018 16.1K +14% +$6,337
2025-03-11 2025-03-07 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off G - Gift $0.00 -67.8K 14.1K -83% $0
DM 2025-02-03 2025-01-30+ ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off F - Tax $6.78 -7,990 76.8K -9% -$54.2K
DM 2025-02-03 2025-01-30+ ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off M - OptEx $0.00 +23.2K 78.9K +42% $0
D 2025-02-03 2025-01-31 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off A - Grant $5.18 +1,905 72.7K +3% +$9,868
D 2025-01-28 2025-01-25 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off F - Tax $6.98 -4,994 64.7K -7% -$34.9K
D 2025-01-28 2025-01-25 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off M - OptEx $0.00 +14.6K 69.7K +26% $0
2024-08-01 2024-07-31 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off A - Grant $5.41 +1,486 55.1K +3% +$8,039
DM 2024-02-05 2024-02-01+ ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off M - OptEx $0.00 +13.9K 50.0K +39% $0
DM 2024-02-05 2024-02-01+ ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off F - Tax $9.56 -4,133 53.6K -7% -$39.5K
D 2024-02-01 2024-01-31 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off A - Grant $2.69 +3,257 43.8K +8% +$8,761
D 2024-02-01 2024-01-30 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off M - OptEx $0.00 +9,275 43.3K +27% $0
D 2024-02-01 2024-01-30 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off F - Tax $9.80 -2,709 40.6K -6% -$26.5K
2023-08-02 2023-07-31 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off A - Grant $2.81 +691 34.0K +2% +$1,942
2023-03-23 2023-03-23 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off P - Purchase $4.22 +10.0K 33.3K +43% +$42.2K
D 2023-02-06 2023-02-02 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off M - OptEx $0.00 +7,775 25.7K +43% $0
D 2023-02-06 2023-02-02 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off F - Tax $15.04 -2,364 23.3K -9% -$35.6K
D 2023-02-02 2023-01-31 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off A - Grant $10.21 +1,296 13.9K +10% +$13.2K
D 2023-02-02 2023-02-01 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off F - Tax $13.78 -2,183 17.9K -11% -$30.1K
D 2023-02-02 2023-02-01 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off M - OptEx $0.00 +6,166 20.1K +44% $0
2022-08-03 2022-07-31 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off A - Grant $6.86 +1,076 12.6K +9% +$7,381
D 2022-03-02 2022-02-28 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off M - OptEx $1.92 +30.0K 41.5K +260% +$57.6K
D 2022-03-02 2022-02-28 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off S - Sale+OE $7.52 -30.0K 11.5K -72% -$225.6K
D 2022-02-03 2022-02-01 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off M - OptEx $0.00 +6,166 13.7K +82% $0
D 2022-02-03 2022-02-01 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off F - Tax $7.98 -2,183 11.5K -16% -$17.4K
D 2022-02-03 2022-01-31 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off A - Grant $6.86 +1,800 7,562 +31% +$12.3K
2021-08-06 2021-07-31 ALT Altimmune, Inc. Harris Matthew Scott Chief Medical Off A - Grant $7.71 +725 5,762 +14% +$5,590

Purchase Sale Sale after option exercise All abbreviations