RAPT Therapeutics, Inc. (RAPT) has 19 known insider and institutional holders on record. The largest holder is Kleiner Perkins Caufield & Byers XV, LLC with 1,947,063 shares. Other notable holders include Column Group LLC and Wong Brian Russell.
Over the last 12 months, insiders have made 10 transactions in RAPT stock — 9 buys (valued at $8.06M) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
RAPT Insider Ownership
Top Holder
Kleiner Perkins Caufield & Byers XV, LLC
1,947,063 shares
Buys (12 mo)
9
$8.06M value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Kleiner Perkins Caufield & Byers Xv, Llc |
Director |
1,947,063 |
2020-10-20 |
|
| 2 |
Column Group Llc |
Director |
1,236,261 |
2022-05-27 |
|
| 3 |
Wong Brian Russell |
President and CEO |
637,500 |
2025-06-24 |
|
| 4 |
Topspin Fund L.p. |
10 Percent Owner |
559,243 |
2020-05-29 |
|
| 5 |
Medicxi Ventures Management (jersey) Ltd |
10 Percent Owner |
374,023 |
2025-01-06 |
|
| 6 |
Kozick Linda |
Director |
257,832 |
2025-06-02 |
|
| 7 |
Gray Mary Ann |
Director |
257,832 |
2025-06-02 |
|
| 8 |
Lyons-williams Lori |
Director |
257,832 |
2025-06-02 |
|
| 9 |
Giordano Michael F |
Director |
257,832 |
2025-06-02 |
|
| 10 |
Young Rodney Kb |
Chief Financial Officer |
118,750 |
2025-06-24 |
|
| 11 |
Brockstedt Dirk G. |
Chief Scientific Officer |
100,000 |
2025-06-24 |
|
| 12 |
Ho William |
Chief Medical Officer |
75,000 |
2025-06-24 |
|
| 13 |
Robbins Wendye |
Director |
49,432 |
2025-04-02 |
|
| 14 |
Column Group Ii, Lp |
10 Percent Owner |
42,189 |
2022-05-27 |
|
| 15 |
Tcg Iv Gp, Llc |
Director |
42,189 |
2022-05-27 |
|
| 16 |
Rieflin William Jl |
Director |
36,490 |
2024-05-23 |
|
| 17 |
Braunstein Scott |
Director |
25,000 |
2025-06-24 |
|
| 18 |
Lam Karen C |
VP, Finance and Controller |
18,000 |
2021-02-01 |
|
| 19 |
Svennilson Peter |
Director |
7,500 |
2021-06-24 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2025-06-20 |
Wong Brian Russell |
President and CEO |
RSU Award |
637,500 |
$7.43 |
$4.74M |
| 2025-06-21 |
Braunstein Scott |
Director |
RSU Award |
25,000 |
$7.43 |
$185.75K |
| 2025-06-21 |
Braunstein Scott |
Officer |
Unknown |
- |
- |
- |
| 2025-06-20 |
Brockstedt Dirk G. |
Chief Scientific Officer |
RSU Award |
100,000 |
$7.43 |
$743K |
| 2025-06-20 |
Ho William |
Chief Medical Officer |
RSU Award |
75,000 |
$7.43 |
$557.25K |
| 2025-06-20 |
Young Rodney Kb |
Chief Financial Officer |
RSU Award |
118,750 |
$7.43 |
$882.31K |
| 2025-05-29 |
Kozick Linda |
Director |
RSU Award |
257,832 |
$0.93 |
$239.78K |
| 2025-05-29 |
Giordano Michael F |
Director |
RSU Award |
257,832 |
$0.93 |
$239.78K |
| 2025-05-29 |
Lyons-williams Lori |
Director |
RSU Award |
257,832 |
$0.93 |
$239.78K |
| 2025-05-29 |
Gray Mary Ann |
Director |
RSU Award |
257,832 |
$0.93 |
$239.78K |
