OmniAb Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGM:OABI Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
24 May 24	BuyUS$1,059,840	Matthew Foehr	Individual	240,000	US$4.42
22 Mar 24	BuyUS$1,167,750	Matthew Foehr	Individual	225,000	US$5.19
12 Dec 23	BuyUS$1,010,000	Matthew Foehr	Individual	200,000	US$5.05
10 Nov 23	BuyUS$405,517	Matthew Foehr	Individual	95,000	US$4.27
14 Aug 23	BuyUS$246,600	Matthew Foehr	Individual	45,000	US$5.48

Insider Trading Volume

Insider Buying: OABI insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of OABI?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	575	0.000489%
Individual Insiders	6,014,879	5.11%
VC/PE Firms	15,855,704	13.5%
General Public	25,370,654	21.6%
Institutions	70,373,648	59.8%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 68.65% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
13.5%	Avista Capital Holdings, L.P.	15,855,704	US$59.8m	0.24%	100.0%
6.68%	Janus Henderson Group plc	7,859,438	US$29.6m	1.05%	0.01%
6.01%	BlackRock, Inc.	7,072,101	US$26.7m	-2.96%	no data
4.86%	The Vanguard Group, Inc.	5,713,539	US$21.5m	1.1%	no data
2.95%	Macquarie Investment Management Business Trust	3,474,134	US$13.1m	-2.64%	0.02%
2.9%	William Blair Investment Management, LLC	3,411,746	US$12.9m	0.74%	0.02%
2.81%	Matthew Foehr	3,308,361	US$12.5m	14.6%	no data
2.71%	Chicago Capital, LLC	3,187,352	US$12.0m	-0.22%	0.4%
2.48%	Millennium Management LLC	2,912,430	US$11.0m	27.9%	0.01%
2.42%	Rubric Capital Management LP	2,850,588	US$10.7m	0%	0.25%
2.4%	Dimensional Fund Advisors LP	2,817,381	US$10.6m	7.37%	no data
2.25%	Rice Hall James & Associates, LLC	2,640,541	US$10.0m	-2.66%	0.64%
1.94%	Private Management Group Inc	2,278,612	US$8.6m	-13.7%	0.37%
1.89%	Geode Capital Management, LLC	2,223,852	US$8.4m	3.36%	no data
1.77%	St. Denis J. Villere & Co., LLC	2,078,294	US$7.8m	-3.41%	0.74%
1.74%	State Street Global Advisors, Inc.	2,045,826	US$7.7m	1.81%	no data
1.71%	John Higgins	2,009,455	US$7.6m	1.01%	no data
1.34%	First Sabrepoint Capital Management LP	1,580,621	US$6.0m	-4.62%	3.16%
1.17%	Orchard Capital Management, LLC	1,373,498	US$5.2m	1.14%	1.66%
1.13%	Medical Strategy GmbH, Asset Management Arm	1,331,908	US$5.0m	-0.77%	0.32%
1.04%	Kornitzer Capital Management, Inc.	1,219,955	US$4.6m	0%	0.08%
0.94%	Knott Partners Management, LLC	1,103,505	US$4.2m	1.56%	1.54%
0.74%	Northern Trust Global Investments	870,632	US$3.3m	-0.32%	no data
0.65%	Impax Asset Management Group Plc	761,387	US$2.9m	-10.2%	0.01%
0.64%	Charles Schwab Investment Management, Inc.	756,887	US$2.9m	0.72%	no data