Aptevo Therapeutics Inc. (APVO) has 19 known insider and institutional holders on record. The largest holder is Emergent BioSolutions Inc. with 20,229,849 shares. Other notable holders include TANG KEVIN C and Maddux Randy Joe.
Over the last 12 months, insiders have made 23 transactions in APVO stock — 15 buys (valued at $20.13K) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
APVO Insider Ownership
Top Holder
Emergent BioSolutions Inc.
20,229,849 shares
Buys (12 mo)
15
$20.13K value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Emergent Biosolutions Inc. |
10 Percent Owner |
20,229,849 |
2016-08-04 |
|
| 2 |
Tang Kevin C |
10 Percent Owner |
1,390,467 |
2021-11-22 |
|
| 3 |
Maddux Randy Joe |
SVP Operations, CMO |
134,800 |
2020-03-19 |
|
| 4 |
Adelman Michael |
SVP, Commercial Operations |
134,800 |
2020-03-19 |
|
| 5 |
Mitchell Shawnte |
SVP, Gc and Corporate Affairs |
134,800 |
2020-03-19 |
|
| 6 |
Stromatt Scott C |
Chief Medical Officer and SVP |
67,400 |
2019-03-04 |
|
| 7 |
White Marvin L |
President and CEO |
30,000 |
2025-08-08 |
|
| 8 |
Lamothe Jeffrey G. |
EVP, COO |
17,300 |
2025-08-08 |
|
| 9 |
Grant Grady Iii |
Director |
13,514 |
2025-11-12 |
|
| 10 |
Kwon Soyoung |
SVP, Gc, Bd & Corp Affairs |
11,500 |
2025-08-08 |
|
| 11 |
Taylor Daphne |
SVP, CFO |
11,500 |
2025-08-08 |
|
| 12 |
Huebner Dirk |
SVP, CMO |
11,500 |
2025-08-08 |
|
| 13 |
El-hibri Fuad |
Director |
7,373 |
2021-12-07 |
|
| 14 |
Harsanyi Zsolt |
Director |
7,200 |
2025-08-08 |
|
| 15 |
Kunz Barbara Lopez |
Director |
7,200 |
2025-08-08 |
|
| 16 |
Niederhuber John |
Director |
7,200 |
2025-08-08 |
|
| 17 |
Abdun-nabi Daniel |
Director |
7,200 |
2025-08-08 |
|
| 18 |
Gross Jane A |
SVP & Chief Scientific Officer |
5,500 |
2021-02-17 |
|
| 19 |
Bank Of America Corp /de/ |
10 Percent Owner |
27 |
2025-10-03 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2025-11-10 |
Grant Grady Iii |
Director |
Informative Buy |
13,513 |
$1.49 |
$20.13K |
| 2025-10-01 |
Bank Of America Corp /de/ |
10 Percent Owner |
Unknown |
- |
- |
- |
| 2025-09-30 |
Bank Of America Corp /de/ |
10 Percent Owner |
Unknown |
- |
- |
- |
| 2025-08-06 |
Kwon Soyoung |
SVP, Gc, Bd & Corp Affairs |
RSU Award |
11,500 |
- |
- |
| 2025-08-06 |
Huebner Dirk |
SVP, CMO |
RSU Award |
11,500 |
- |
- |
| 2025-08-06 |
Kunz Barbara Lopez |
Director |
RSU Award |
7,200 |
- |
- |
| 2025-08-06 |
Lamothe Jeffrey G. |
EVP, COO |
RSU Award |
17,300 |
- |
- |
| 2025-08-06 |
Grant Grady Iii |
Director |
RSU Award |
7,200 |
- |
- |
| 2025-08-06 |
Niederhuber John |
Director |
RSU Award |
7,200 |
- |
- |
| 2025-08-06 |
White Marvin L |
President and CEO |
RSU Award |
30,000 |
- |
- |
| 2025-08-06 |
Taylor Daphne |
SVP, CFO |
RSU Award |
11,500 |
- |
- |
| 2025-08-06 |
Abdun-nabi Daniel |
Director |
RSU Award |
7,200 |
- |
- |
| 2025-08-06 |
Harsanyi Zsolt |
Director |
RSU Award |
7,200 |
- |
- |
| 2025-07-17 |
Kwon Soyoung |
SVP, Gc, Bd & Corp Affairs |
Option Exercise |
3 |
$0.00 |
$0.00 |
| 2025-07-17 |
Kunz Barbara Lopez |
Director |
Option Exercise (Sell) |
1 |
- |
- |
| 2025-07-17 |
Lamothe Jeffrey G. |
EVP, COO |
Option Exercise |
5 |
$0.00 |
$0.01 |
| 2025-07-17 |
Grant Grady Iii |
Director |
Option Exercise (Sell) |
1 |
- |
- |
| 2025-07-17 |
Niederhuber John |
Director |
Option Exercise (Sell) |
1 |
- |
- |
| 2025-07-17 |
White Marvin L |
President and CEO |
Option Exercise |
10 |
$0.00 |
$0.01 |
| 2025-07-17 |
Taylor Daphne |
SVP, CFO |
Option Exercise |
3 |
$0.00 |
$0.00 |
| 2025-07-17 |
Abdun-nabi Daniel |
Director |
Option Exercise (Sell) |
1 |
- |
- |
| 2025-07-17 |
Harsanyi Zsolt |
Director |
Option Exercise (Sell) |
1 |
- |
- |
| 2025-07-01 |
Huebner Dirk |
SVP, CMO |
Unknown |
- |
- |
- |
