Siga Technologies SIGA Insider Ownership

NASDAQ SIGA
$3.09 -0.11 (-3.44%)
As of: Sep 9, 2026 · 3:59 PM EDT

Insider Holdings by Owner

1.55Mn Shares

Insider Ownership Statistics

as of 31 Mar, 2025
Insider Ownership
0.178%
+0.0012% pp QoQ
Shares Held by Insiders
127.34K
filed for Mar 2025
0.00% QoQ
Shares Outstanding
71.60Mn
71,604,956 shares
Direct Holdings
127.34K
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Mar 2025
Insiders Holding Shares
15
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest
Average ownership
Peak ownership

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter
Net over range
Buying quarters

Insider Ownership Summary

Quarter ending 31 Mar, 2025

SIGA's three largest insider shareholders as of September 09, 2026 are Daniel J Luckshire (Executive Vp Cfo, 280.49K shares), Joseph W Iii Marshall (Director, 246.52K shares), Joseph W Iii Marshall (Director, 229.64K shares).

Form 4 Holdings

Insiders Holding SIGA

Insiders 15
Shares held 1.55Mn
Of outstanding 2.16%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Daniel J Luckshire Executive Vp Cfo 280,493 0 280,493 18.1% 17 Mar, 2026
2 Joseph W Iii Marshall Director 246,523 0 246,523 15.9% 10 Jun, 2026
3 Dennis E Hruby Evp Chief Scientific Officer 198,537 0 198,537 12.8% 17 Mar, 2026
4 Diem Nguyen Chief Executive Officer 138,767 0 138,767 9.0% 17 Mar, 2026
5 James Antal Director 116,857 0 116,857 7.5% 15 Jun, 2022
6 Jaymie A Durnan Director 88,754 0 88,754 5.7% 10 Jun, 2026
7 Michael C. Plansky Director 75,982 0 75,982 4.9% 15 Jun, 2022
8 Julian Nemirovsky Director 73,754 0 73,754 4.8% 10 Jun, 2026
9 Holly L. Phillips Director 73,754 0 73,754 4.8% 10 Jun, 2026
10 Gary J. Nabel Director 73,754 0 73,754 4.8% 10 Jun, 2026
11 Larry R. Miller General Counsel 51,912 0 51,912 3.3% 26 Mar, 2026
12 Julie Kane Director 48,482 0 48,482 3.1% 15 Jun, 2022
13 Harold Eugene Jr. Ford Director 47,538 0 47,538 3.1% 10 Jun, 2026
14 Jay Varma Evp Chief Medical Officer 17,298 0 17,298 1.1% 13 Jun, 2024
15 Evan A. Knisely Director 17,298 0 17,298 1.1% 13 Jun, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,292 Insider Transactions

Source SEC Form 4
Latest quarter Mar 2025
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
09 Jun, 2026 Joseph W Iii Marshall Director Acquired M 24,116 253,758 Direct
09 Jun, 2026 Gary J. Nabel Director Acquired M 24,116 80,989 Direct
09 Jun, 2026 Jaymie A Durnan Director Acquired M 24,116 95,989 Direct
09 Jun, 2026 Julian Nemirovsky Director Acquired M 24,116 80,989 Direct
09 Jun, 2026 Holly L. Phillips Director Acquired M 24,116 80,989 Direct
09 Jun, 2026 Harold Eugene Jr. Ford Director Acquired M 24,116 54,773 Direct
09 Jun, 2026 Holly L. Phillips Director Disposed D 7,235 $4.39 $31.76K 73,754 Direct
09 Jun, 2026 Jaymie A Durnan Director Disposed D 7,235 $4.39 $31.76K 88,754 Direct
09 Jun, 2026 Harold Eugene Jr. Ford Director Disposed D 7,235 $4.39 $31.76K 47,538 Direct
09 Jun, 2026 Joseph W Iii Marshall Director Disposed D 7,235 $4.39 $31.76K 246,523 Direct
09 Jun, 2026 Julian Nemirovsky Director Disposed D 7,235 $4.39 $31.76K 73,754 Direct
09 Jun, 2026 Gary J. Nabel Director Disposed D 7,235 $4.39 $31.76K 73,754 Direct
09 Jun, 2026 Gary J. Nabel Director Disposed M 24,116 $0.00 $0 0 Direct
09 Jun, 2026 Joseph W Iii Marshall Director Disposed M 24,116 $0.00 $0 0 Direct
09 Jun, 2026 Harold Eugene Jr. Ford Director Disposed M 24,116 $0.00 $0 0 Direct
09 Jun, 2026 Jaymie A Durnan Director Disposed M 24,116 $0.00 $0 0 Direct
09 Jun, 2026 Julian Nemirovsky Director Disposed M 24,116 $0.00 $0 0 Direct
09 Jun, 2026 Holly L. Phillips Director Disposed M 24,116 $0.00 $0 0 Direct
09 Jun, 2026 Holly L. Phillips Director Acquired A 34,169 $0.00 $0 34,169 Direct
09 Jun, 2026 Julian Nemirovsky Director Acquired A 34,169 $0.00 $0 34,169 Direct