Plus Therapeutics, Inc. (PSTV) Insider Ownership

Historic Insider Ownership Trends

As of April 17, 2026, Plus Therapeutics's top three insider holders are Marc H Hedrick (Chief Executive Officer, 701.10K shares), Andrew John Hugh Macintyre Sims (Chief Financial Officer, 173.91K shares), Robert P Lenk (Director, 139.33K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Marc H Hedrick Chief Executive Officer 701,100 0 01 Apr, 2026
Andrew John Hugh Macintyre Sims Chief Financial Officer 173,913 0 01 Apr, 2026
Robert P Lenk - 139,327 0 25 Aug, 2025
Greg Petersen - 48,921 0 13 Sep, 2024
Howard Clowes - 26,497 0 13 Sep, 2024
Richard J Hawkins - 15,188 0 17 Sep, 2024
Richard J Hawkins - 1 0 06 Mar, 2023

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Apr, 2026 Marc H Hedrick Common Stock A 159,681 $0.00 499,468 D M
01 Apr, 2026 Andrew John Hugh Macintyre Sims Common Stock A 38,323 $0.00 144,784 D M
01 Apr, 2026 Marc H Hedrick Common Stock D 201,632 $0.00 701,100 D M
01 Apr, 2026 Andrew John Hugh Macintyre Sims Common Stock A 29,129 $0.00 173,913 D M
01 Apr, 2026 Andrew John Hugh Macintyre Sims Restricted Stock Units D 38,323 $0.00 694,451 D M
01 Apr, 2026 Marc H Hedrick Restricted Stock Units D 159,681 $0.00 3,856,707 D M
01 Apr, 2026 Andrew John Hugh Macintyre Sims Restricted Stock Units D 29,129 $0.00 665,322 D M
01 Apr, 2026 Marc H Hedrick Restricted Stock Units D 201,632 $0.00 3,655,075 D M
25 Feb, 2026 Andrew John Hugh Macintyre Sims Restricted Stock Units A 349,542 $0.00 732,774 D A
25 Feb, 2026 Marc H Hedrick Restricted Stock Units A 2,419,582 $0.00 4,016,388 D A
25 Feb, 2026 Andrew John Hugh Macintyre Sims Stock Option (Right to Buy) A 349,541 $0.00 349,541 D A
25 Feb, 2026 Marc H Hedrick Stock Option (Right to Buy) A 2,419,582 $0.00 2,419,582 D A
01 Jan, 2026 Marc H Hedrick Common Stock A 159,681 $0.00 339,787 D M
01 Jan, 2026 Andrew John Hugh Macintyre Sims Common Stock A 38,323 $0.00 106,461 D M
01 Jan, 2026 Marc H Hedrick Restricted Stock Units D 159,681 $0.00 1,596,806 D M
01 Jan, 2026 Andrew John Hugh Macintyre Sims Restricted Stock Units D 38,323 $0.00 383,232 D M
04 Nov, 2025 Andrew John Hugh Macintyre Sims Common Stock A 20,000 $0.51 68,138 D P
01 Oct, 2025 Andrew John Hugh Macintyre Sims Common Stock A 38,323 $0.00 48,138 D M
13 Aug, 2025 Andrew John Hugh Macintyre Sims Stock Option (Right to Buy) A 1,379,636 $0.00 1,379,636 D A
13 Aug, 2025 Marc H Hedrick Stock Option (Right to Buy) A 5,748,506 $0.00 5,748,506 D A