SEC ownership of PhaseBio Pharmaceuticals Inc

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001169245.

Comparable stake leader

NEW ENTERPRISE ASSOCIATES 13 LP

Disclosed value leader

Comparable rows

0/15

Latest evidence

19 May 2023

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 1 signal
Latest parsed ownership date
19 May 2023
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001169245
Issuer location
Malvern, PA

Ownership snapshot

Top shareholders of PhaseBio Pharmaceuticals Inc (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
NEW ENTERPRISE ASSOCIATES...
Disclosed value leader
Comparable rows
0/15
Latest evidence
19 May 2023
3/4/5 Some rows are evidence-backed but not safely comparable across classes. 15 rows are not safely comparable across share classes. Showing 1-8 of 15 holder rows.

Quick read

SEC ownership evidence is available, but the rows are not safely comparable across share classes.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens NEW ENTERPRISE ASSOCIATES 13 LP's linked filing trail.
Detailed SEC evidence table Showing 1-8 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
NEW ENTERPRISE ASSOCIATES 13 LP
3/4/5
10%+ Owner
class O/S missing
4,857,525 shares
25 Oct 2022
Clay Thorp
3/4/5
Director
class O/S missing
3,581,733 shares
19 May 2023
Jonathan P. Mow
3/4/5
Chief Executive Officer, Director
class O/S missing
183,701 shares
20 May 2022
John Sang Lee
3/4/5
Chief Medical Officer
mixed-class rows
140,250 shares
mixed-class rows
24 Feb 2022
John P. Sharp
3/4/5
Chief Financial Officer
class O/S missing
65,767 shares
20 May 2022
Nancy J. Hutson
3/4/5
Director
class O/S missing
41,510 shares
19 May 2023
Susan Elizabeth Arnold
3/4/5
SVP, Technical Operations
class O/S missing
41,236 shares
20 May 2022
Jonathan Birchall
3/4/5
Chief Commercial Officer
class O/S missing
20,000 shares
20 May 2022
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 10 Jul 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-17 of 17 reporting-owner rows connected to PhaseBio Pharmaceuticals Inc. Open a relationship link for the CIK-to-CIK filing trail.

Rows
17
Largest Forms 3/4/5 holder
NEW ENTERPRISE ASSOCIATES 13 LP
Net 12M change
$0
Latest report
19 May 2023
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
NEW ENTERPRISE ASSOCIATES 13 LP 10%+ Owner Mixed 25 Oct 2022
Peter Justin Klein Director Mixed 03 Jun 2021
William D. Humphries Director Mixed 19 May 2023
John P. Sharp Chief Financial Officer Mixed 20 May 2022
Jonathan P. Mow Chief Executive Officer, Director Mixed 20 May 2022
Glen Burkhardt SVP of Human Resources Mixed 20 May 2022
Nancy J. Hutson Director Mixed 19 May 2023
Clay Thorp Director Mixed 19 May 2023
Alex Sapir Director Mixed 19 May 2023
Richard van den Broek Director Mixed 19 May 2023
Jonathan Birchall Chief Commercial Officer Mixed 20 May 2022
John Sang Lee Chief Medical Officer Mixed 24 Feb 2022
Caroline M. Loewy Director Mixed 19 May 2023
Edmund Harrigan Director Mixed 19 May 2023
Michael York VP, Corporate Development Mixed 20 May 2021
Kristopher L. Hanson SVP and General Counsel Mixed 20 May 2022
Susan Elizabeth Arnold SVP, Technical Operations Mixed 20 May 2022

Recent insider transactions for PhaseBio Pharmaceuticals Inc

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
No insider transactions were found in the last 12 months for this issuer.
* marks a reported price that did not pass the local price check.
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .