Arcturus Therapeutics Holdings Inc. (ARCT) has 20 known insider and institutional holders on record. The largest holder is Ultragenyx Pharmaceutical Inc. with 1,475,000 shares. Other notable holders include SCHORSCH NICHOLAS S and KAHANE WILLIAM M.
Over the last 12 months, insiders have made 14 transactions in ARCT stock — 12 buys (valued at $3.25M) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
ARCT Insider Ownership
Top Holder
Ultragenyx Pharmaceutical Inc.
1,475,000 shares
Buys (12 mo)
12
$3.25M value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Ultragenyx Pharmaceutical Inc. |
Director |
1,475,000 |
2021-08-12 |
|
| 2 |
Schorsch Nicholas S |
Director |
993,240 |
2012-04-17 |
|
| 3 |
Kahane William M |
President and CEO |
261,451 |
2012-04-17 |
|
| 4 |
Sassine Andy |
Chief Financial Officer |
221,764 |
2025-08-20 |
|
| 5 |
Payne Joseph E |
President and CEO |
175,000 |
2025-12-19 |
|
| 6 |
Burns Robert |
Director |
91,314 |
2012-06-20 |
|
| 7 |
Chivukula Pad |
Chief Scientific Officer & COO |
54,000 |
2025-12-19 |
|
| 8 |
Kurata Lance |
Chief Legal Officer |
54,000 |
2025-12-19 |
|
| 9 |
Hughes Steven George |
Chief Development Officer |
50,000 |
2020-12-22 |
|
| 10 |
Stanley William G |
Director |
39,896 |
2012-06-20 |
|
| 11 |
Kummerfeld Keith C |
See Remarks |
30,000 |
2023-12-19 |
|
| 12 |
Michelson Leslie D |
Director |
25,630 |
2012-07-31 |
|
| 13 |
Jones Brian D |
CFO and Treasurer |
24,952 |
2012-06-20 |
|
| 14 |
Marantz Jing L. |
Director |
15,000 |
2025-06-11 |
|
| 15 |
Holmes Edward W |
Director |
15,000 |
2025-06-11 |
|
| 16 |
Marquet Magda |
Director |
15,000 |
2025-06-11 |
|
| 17 |
Parschauer Karah Herdman |
Director |
15,000 |
2021-06-22 |
|
| 18 |
Farrell Peter C |
Director |
15,000 |
2025-06-11 |
|
| 19 |
Markels John |
Director |
15,000 |
2025-06-11 |
|
| 20 |
Slaoui Moncef |
Director |
15,000 |
2025-06-11 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2025-12-17 |
Roberts Joseph |
Controller |
RSU Award |
10,000 |
$6.52 |
$65.2K |
| 2025-12-12 |
Roberts Joseph |
Controller |
Unknown |
7,500 |
$28.88 |
$216.6K |
| 2025-12-17 |
Kurata Lance |
Chief Legal Officer |
RSU Award |
54,000 |
$6.52 |
$352.08K |
| 2025-12-17 |
Chivukula Pad |
Chief Scientific Officer & COO |
RSU Award |
54,000 |
$6.52 |
$352.08K |
| 2025-12-17 |
Payne Joseph E |
President and CEO |
RSU Award |
175,000 |
$6.52 |
$1.14M |
| 2025-08-15 |
Sassine Andy |
Chief Financial Officer |
Informative Buy |
1,238 |
$16.56 |
$20.5K |
| 2025-08-15 |
Sassine Andy |
Chief Financial Officer |
Informative Sell |
1,238 |
$16.56 |
$20.5K |
| 2025-06-09 |
Marantz Jing L. |
Director |
RSU Award |
15,000 |
$12.54 |
$188.1K |
| 2025-06-09 |
Markels John |
Director |
RSU Award |
15,000 |
$12.54 |
$188.1K |
| 2025-06-09 |
Slaoui Moncef |
Director |
RSU Award |
15,000 |
$12.54 |
$188.1K |
| 2025-06-09 |
Marquet Magda |
Director |
RSU Award |
15,000 |
$12.54 |
$188.1K |
| 2025-06-09 |
Holmes Edward W |
Director |
RSU Award |
15,000 |
$12.54 |
$188.1K |
| 2025-06-09 |
Barlow James F |
Director |
RSU Award |
15,000 |
$12.54 |
$188.1K |
| 2025-06-09 |
Farrell Peter C |
Director |
RSU Award |
15,000 |
$12.54 |
$188.1K |
