// company-profile

Siga Technologies Inc

SIGA
ExchangeNasdaqSectorPharmaceutical PreparationsInc.DEFilings53Insiders13
// api This Siga Technologies Inc insider-trading data is served live by the Form4API insider trading API. Get the same data via API.

// activity-summary

Recent insider activity is bullish. Over the last 30 days, 21 insiders purchased shares versus 7 sales. Buying was led by DURNAN JAYMIE A.

// 90-day insight

Over the last 90 days, Siga Technologies Inc insiders bought $0 (21 transactions) and sold $222K (7 transactions).

  • Most active insider: Phillips Holly L. with 4 transactions totaling $32K.
  • Largest single sale: $32K by Phillips Holly L. on Jun 9, 2026.

Activity skews bullish — buys outpace sales.

Institutional Ownership

Top 13F-HR holders of Siga Technologies Inc as of 2026-03-31

↓ decreasing
Total reported AUM
$172.4M
QoQ change
-8.1%
Reporting period
2026-03-31
#1
DIMENSIONAL FUND ADVISORS LP
CIK 354204
$13.5M
2.5M shares
#2
AltraVue Capital, LLC
CIK 1740837
$10.3M
1.9M shares
#3
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$9.2M
1.7M shares

Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jun 9, 2026Phillips Holly L.SIGA
Disposition
7,235$4.39$32K
Jun 9, 2026DURNAN JAYMIE ASIGA
Award
34,169$0.00$0K
Jun 9, 2026KEANE JOHN MSIGA
Disposition
7,235$4.39$32K
Jun 9, 2026Phillips Holly L.SIGA
Option Exercise
24,116$0.00$0K
Jun 9, 2026Nabel Gary J.SIGA
Option Exercise
24,116$0.00$0K

45 more transactions hidden

Free account · No credit card required

Building something? Get API access →

Popular companies on Form4API

Browse insider trading activity for other actively-filed companies.