Parabilis Medicines PBLS Insider Ownership

NASDAQ PBLS

$25.03 +0.59 (+2.41%)

At close: Oct 26, 2026 · 4:00 PM EDT

Insider Holdings by Owner

29.09Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

23.85%

▲+19.58% pp QoQ

Shares Held by Insiders

29.09Mn

filed for Sep 2026

▲+458.71% QoQ

Shares Outstanding

121.94Mn

121,938,652 shares

Direct Holdings

120.10K

Indirect: 28.97Mn

Net Open-Market Trades

+244.59K

net bought · $6.92Mn in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Open-Market Insider Trades

Bought Sold

Latest quarter —

Net over range —

Net-buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the past 12 months, Parabilis Medicines insiders bought $441.42 million of stock on the open market (21.96Mn shares) and made no open-market sales.

Parabilis Medicines' open-market purchases in the past 12 months came from 3 insiders; no insider sold.
Among Parabilis Medicines insiders, Ra Capital Management, L.P. (Director and 10% owner) led open-market buying over the past 12 months with $430.69 million of purchases (21.43Mn shares); the latest was on July 22, 2026.
Beyond open-market trades, insiders at Parabilis Medicines acquired 10.27Mn shares through option exercises and conversions in the last 12 months.
Per Business Quant data, Parabilis Medicines insiders hold 29.09Mn shares in total based on their latest Form 4 filings, or 23.85% of the 121.94Mn shares outstanding.
Of the 29.09Mn shares held by Parabilis Medicines insiders, 120.1K shares (0.41%) are held directly and 28.97Mn shares (99.59%) indirectly, through trusts, partnerships, family members and other entities.
PBLS's insider total is spread across 6 insiders who have filed a Form 4 in the past two years.
Parabilis Medicines' three biggest insider holders are Ra Capital Management, L.P. (Director and 10% owner, 26.53Mn shares), James E. Flynn (10% owner, 1.88Mn shares) and Guy Levy (10% owner, 527.07K shares), based on their latest Form 4 filings.
The largest insider, Ra Capital Management, L.P., holds 91.21% of PBLS's insider total.
Over the trailing 12 months, 11 insiders reported transactions in PBLS stock across 17 Form 4 filings.
This summary of Parabilis Medicines insider activity covers Form 4 filings through August 25, 2026.

Form 4 Holdings

Insiders Holding PBLS

Insiders 6

Shares held 29.09Mn

Of outstanding 23.85%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Capital Management, L.P. Ra	Director, TenPercentOwner	0	26,529,686	26,529,686	91.2%	22 Jul, 2026
2	James E Flynn	TenPercentOwner, Other	0	1,880,704	1,880,704	6.5%	11 Jun, 2026
3	Guy Levy	TenPercentOwner	0	527,070	527,070	1.8%	29 Jun, 2026
4	Alexis Borisy	Director	105,414	0	105,414	0.4%	15 Jun, 2026
5	Alan Sebulsky	Director	0	30,000	30,000	0.1%	16 Jun, 2026
6	Edward M Fitzgerald	Director	14,688	0	14,688	0.1%	15 Jun, 2026

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

55 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
22 Aug, 2026	Craig Tendler	Director	Acquired A	20,294	$0.00	$0	20,294	Direct
20 Jul, 2026	Capital Management, L.P. Ra	Director, TenPercentOwner	Acquired P	98,433	$27.13	$2.67Mn	26,383,526	Indirect
20 Jul, 2026	Capital Management, L.P. Ra	Director, TenPercentOwner	Acquired P	32,987	$27.72	$914.40K	26,416,513	Indirect
21 Jul, 2026	Capital Management, L.P. Ra	Director, TenPercentOwner	Acquired P	21,696	$27.96	$606.62K	26,438,209	Indirect
21 Jul, 2026	Capital Management, L.P. Ra	Director, TenPercentOwner	Acquired P	6,504	$29.17	$189.72K	26,444,713	Indirect
21 Jul, 2026	Capital Management, L.P. Ra	Director, TenPercentOwner	Acquired P	37,723	$30.00	$1.13Mn	26,482,436	Indirect
22 Jul, 2026	Capital Management, L.P. Ra	Director, TenPercentOwner	Acquired P	47,250	$29.77	$1.41Mn	26,529,686	Indirect
11 Jun, 2026	Guy Levy	TenPercentOwner	Acquired P	375,000	$20.00	$7.50Mn	1,027,000	Indirect
11 Jun, 2026	Guy Levy	TenPercentOwner	Acquired P	125,000	$20.00	$2.50Mn	652,000	Indirect
11 Jun, 2026	Guy Levy	TenPercentOwner	Acquired C	527,070	$9.48	$5.00Mn	527,070	Indirect
11 Jun, 2026	Guy Levy	TenPercentOwner	Disposed C	527,070	$0.00	$0	0	Indirect
12 Jun, 2026	Alan Sebulsky	Director	Acquired P	8,435	$27.67	$233.39K	20,935	Indirect
15 Jun, 2026	Alan Sebulsky	Director	Acquired P	5,000	$26.00	$129.99K	25,935	Indirect
15 Jun, 2026	Alan Sebulsky	Director	Acquired P	4,065	$27.10	$110.15K	30,000	Indirect
11 Jun, 2026	Alexis Borisy	Director	Acquired C	105,414	—	—	105,414	Direct
11 Jun, 2026	Edward M Fitzgerald	Director	Acquired C	5,539	—	—	5,539	Direct
11 Jun, 2026	Alan Sebulsky	Director	Acquired P	12,500	$20.00	$250.00K	12,500	Indirect
11 Jun, 2026	Capital Management, L.P. Ra	Director, TenPercentOwner	Acquired C	6,556,740	—	—	6,556,740	Indirect
11 Jun, 2026	Capital Management, L.P. Ra	Director, TenPercentOwner	Acquired C	1,187,881	—	—	1,187,881	Indirect
11 Jun, 2026	Edward M Fitzgerald	Director	Acquired C	3,878	—	—	9,417	Direct

Showing 1 to 20 of 55 transactions