Yarrow Bioscience YARW Insider Ownership

NASDAQ YARW
$29.11 -0.19 (-0.65%)
At close: Sep 9, 2026 · 4:00 PM EDT

Insider Holdings by Owner

279.62K Shares

Insider Ownership Statistics

as of 30 Jun, 2026
Insider Ownership
—
share count not reported for this filer set
Shares Held by Insiders
98.70K
filed for Jun 2026
■0.00% QoQ
Shares Outstanding
—
not reported
Direct Holdings
0
Indirect: 98.70K
Net Shares Traded (QoQ)
0
no net change in Jun 2026
Insiders Holding Shares
6
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 —
Form 4 Holdings

Insiders Holding YARW

Insiders 6
Shares held 279.62K
Of outstanding —
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Fund Group Gp, Llc Rtw TenPercentOwner 0 266,307 266,307 95.2% 30 Jul, 2026
2 David Domzalski President And Ceo 6,943 0 6,943 2.5% 24 Jul, 2026
3 Iain Stuart Chief Scientific Officer 1,919 0 1,919 0.7% 24 Jul, 2026
4 Mutya Harsch Chief Legal Officer And Gc 1,918 0 1,918 0.7% 24 Jul, 2026
5 Tyler Zeronda Chief Financial Officer 1,498 0 1,498 0.5% 24 Jul, 2026
6 Patrick G Lepore Director 1,029 0 1,029 0.4% 16 Jan, 2025

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

536 Insider Transactions

Source SEC Form 4
Latest quarter Jun 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
29 Jul, 2026 Fund Group Gp, Llc Rtw TenPercentOwner Disposed J 133,290 $0.00 $0 266,307 Indirect
29 Jul, 2026 Fund Group Gp, Llc Rtw TenPercentOwner Acquired J 133,290 $0.00 $0 8,949,719 Indirect
27 Jul, 2026 Mona Ashiya Director Acquired A 15,435 $0.00 $0 309 Direct
27 Jul, 2026 Tyler Zeronda Director Acquired A 185,798 $0.00 $0 3,716 Direct
23 Jul, 2026 David Domzalski President And Ceo Disposed F 79,391 $44.88 $3.56Mn 6,943 Direct
23 Jul, 2026 Iain Stuart Chief Scientific Officer Disposed F 15,405 $44.88 $691.38K 1,919 Direct
23 Jul, 2026 Mutya Harsch Chief Legal Officer And Gc Disposed F 22,516 $44.88 $1.01Mn 1,918 Direct
23 Jul, 2026 Tyler Zeronda Chief Financial Officer Disposed F 22,516 $44.88 $1.01Mn 1,498 Direct
30 Jun, 2026 Mutya Harsch Chief Legal Officer And Gc Disposed F 3,464 $32.54 $112.70K 2,369 Direct
30 Jun, 2026 Iain Stuart Chief Scientific Officer Disposed F 2,370 $32.54 $77.11K 2,227 Direct
30 Jun, 2026 Tyler Zeronda Chief Financial Officer Disposed F 3,464 $32.54 $112.70K 1,949 Direct
30 Jun, 2026 David Domzalski President And Ceo Disposed F 12,214 $32.54 $397.38K 8,531 Direct
29 May, 2026 David Domzalski President And Ceo Acquired A 30,791 $15.50 $477.26K 8,776 Direct
31 Mar, 2026 Mutya Harsch Chief Legal Officer And Gc Disposed F 4,007 $29.88 $119.71K 2,438 Direct
31 Mar, 2026 David Domzalski President And Ceo Disposed F 14,232 $29.88 $425.18K 8,040 Direct
31 Mar, 2026 Iain Stuart Chief Scientific Officer Disposed F 2,876 $29.88 $85.92K 2,247 Direct
31 Mar, 2026 Tyler Zeronda Chief Financial Officer Disposed F 4,007 $29.88 $119.71K 1,996 Direct
31 Dec, 2025 Iain Stuart Chief Scientific Officer Disposed F 2,448 $29.01 $71.00K 2,305 Direct
31 Dec, 2025 David Domzalski President And Ceo Disposed F 12,684 $29.01 $367.90K 8,324 Direct
31 Dec, 2025 Mutya Harsch Chief Legal Officer And Gc Disposed F 3,579 $29.01 $103.81K 2,518 Direct