Korsana Biosciences KRSA Insider Ownership

NASDAQ KRSA
$30.93 -0.10 (-0.33%)
As of: Oct 21, 2026 · 9:33 AM EDT

Insider Holdings by Owner

175.63K Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
25.22%
▲+9.01% pp QoQ
Shares Held by Insiders
153.37K
filed for Sep 2026
▲+55.53% QoQ
Shares Outstanding
608.04K
608,041 shares
Direct Holdings
153.36K
Indirect: 10
Net Shares Traded (QoQ)
+54.76K
net buying in Sep 2026
Insiders Holding Shares
7
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Over the trailing 12 months, KRSA insiders made no open-market trades in the stock.

Form 4 Holdings

Insiders Holding KRSA

Insiders 7
Shares held 175.63K
Of outstanding 28.88%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Peter M Hecht Chief Executive Officer 130,034 0 130,034 74.0% 20 Jul, 2026
2 Regina Margaret Graul Director, Officer 29,689 0 29,689 16.9% 18 Aug, 2026
3 Michael J Higgins Director 4,391 0 4,391 2.5% 27 Mar, 2025
4 Errol B Desouza Director 4,286 0 4,286 2.4% 04 Dec, 2023
5 Rhonda M. Chicko Chief Financial Officer 3,574 0 3,574 2.0% 18 Aug, 2026
6 Steven Hyman Director 2,857 0 2,857 1.6% 04 Dec, 2023
7 Terrance Mcguire Director 793 0 793 0.5% 04 Dec, 2023

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

148 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
09 Sep, 2026 Michelle Patricia Pernice Director Acquired A 48,445 $0.00 $0 48,445 Direct
09 Sep, 2026 Funds Management Llc Fairmount Director, TenPercentOwner Acquired A 48,445 $0.00 $0 48,445 Indirect
09 Sep, 2026 Nimish P Shah Director Acquired A 48,445 $0.00 $0 48,445 Direct
09 Sep, 2026 Andrew Gottesdiener Director Acquired A 48,445 $0.00 $0 48,445 Direct
14 Aug, 2026 Rhonda M. Chicko Chief Financial Officer Acquired M 25,000 $16.49 $412.13K 3,574 Direct
14 Aug, 2026 Regina Margaret Graul Director, Officer Acquired M 55,849 $23.10 $1.29Mn 22,307 Direct
14 Aug, 2026 Regina Margaret Graul Director, Officer Disposed F 48,629 $26.53 $1.29Mn 15,360 Direct
14 Aug, 2026 Rhonda M. Chicko Chief Financial Officer Disposed M 25,000 $0.00 $0 0 Direct
14 Aug, 2026 Regina Margaret Graul Director, Officer Disposed M 55,849 $0.00 $0 0 Direct
16 Jul, 2026 Peter M Hecht Director, TenPercentOwner Acquired C 351,037 — — 130,034 Direct
16 Jul, 2026 Peter M Hecht Director, TenPercentOwner Disposed C 351,037 — — 0 Direct
07 Aug, 2025 Rhonda M. Chicko Chief Financial Officer Acquired A 25,000 $0.00 $0 3,571 Direct
25 Mar, 2025 Michael J Higgins Director Acquired A 9,090 $19.25 $174.98K 4,391 Direct
25 Mar, 2025 Peter M Hecht Director, TenPercentOwner Acquired A 181,818 $19.25 $3.50Mn 79,886 Direct
21 Nov, 2024 Path Capital Lp Slate TenPercentOwner Disposed S 357,880 $10.86 $3.89Mn 0 Indirect
05 Aug, 2024 Regina Margaret Graul Director, Officer Acquired A 55,849 $0.00 $0 7,978 Direct
01 Jan, 2024 Peter M Hecht Director, TenPercentOwner Acquired A 15,000 $0.00 $0 53,912 Direct
01 Jan, 2024 Regina Margaret Graul President Acquired A 50,000 $0.00 $0 14,329 Direct
30 Nov, 2023 Terrance Mcguire Director Acquired A 5,000 $0.00 $0 793 Direct
30 Nov, 2023 Steven Hyman Director Acquired A 20,000 $0.00 $0 2,857 Direct