How many institutions own AMAM stock?

A company's 13F filings with the Securities and Exchange Commission (SEC) provides investors with comprehensive information about institutional ownership in a listed company, a sign of strength in terms of how many institutions have confidence in that company. The number of institutional investors who currently own AMAM shares is 94, representing 103.43% of the company's common stock.

Who are the major shareholders selling Ambrx Biopharma Inc. stock?

US BANCORP \DE\, in the last quarter, reduced its stake in AMAM by -100% restricting it's holding to 0 shares of worth nearly -. BANK OF AMERICA CORP /DE/ also lessened -100% of the AMAM shares from its portfolio, reducing its holding to 0 shares of worth -. FIRST MANHATTAN CO. LLC. also shunned AMAM shares holding by -100% last quarter which brought its holding to 0 shares worth -.

Investors who are buying AMAM stock?

As per its latest 13F filing, SUSQUEHANNA INTERNATIONAL GROUP, LLP increased its stake in AMAM by 100% in the last quarter. The institutional holder raised its holding to 49.2 thousand shares having worth more than $700.65K. TUDOR INVESTMENT CORP ET AL also added 100% more shares of AMAM to its portfolio, raising its holding to 10.8 thousand shares of worth $153.79K. MIRABELLA FINANCIAL SERVICES LLP also increased its AMAM shares holding by 100% which brought its holding to 10.04 thousand shares worth $142.97K.

AMAM's major insiders: who are they?

The insider with the most stakes in AMAM is Darwin Global Management, Ltd. , 10 percent owner at the company. Additionally, AMAM stock is highly held by 10 percent owner Cormorant Asset Management, LP and President and CEO O'Connor Daniel J. among others.

Did an insider recently sell AMAM stock?

Company executives, directors, and other insiders own 2.1% percent of Ambrx Biopharma Inc.'s stock. Within the last six months, there have been 0 transaction(s) in which AMAM insiders have sold stock, totaling 0 shares. Insiders that have sold shares include O'CONNOR DANIEL J..

Which insider recently purchased AMAM stock?

There have been 0 transaction(s) during the past 6-months in which Ambrx Biopharma Inc. insiders have bought stock, totalling 0 shares

How much of AMAM does insiders own?

Around 0 Ambrx Biopharma Inc. shares are held by insiders, which represents about 2.1% of AMAM stock.

Who is the insider with the largest stake?

AMAM 10 percent owner, Darwin Global Management, Ltd. holds the largest portfolio of the company's shares. AMAM shares owned by Darwin total nearly 16.69 million.

Which institution holds the most shares in AMAM?

SUSQUEHANNA INTERNATIONAL GROUP, LLP is the largest institutional owner in AMAM which holds 49.2 thousand shares worth $700.65K or 0.08% of the total AMAM shares outstanding followed by TUDOR INVESTMENT CORP ET AL with ownership of 10.8 thousand shares representing 0.02% of the AMAM ownership. MIRABELLA FINANCIAL SERVICES LLP is the third largest stakeholder with 10.04 thousand shares or 0.02% of the ownership worth more than $142.97K.

Is Ambrx Biopharma Inc. stock optionable?

Stock options give the owner the ability but not the obligation to buy or sell a security at a predetermined price and date. Stock options can be classified into two types: puts and calls. A put is a bet on falling stock, and a call is a bet on rising stock. As far as the AMAM is concerned, it is a stock which is not optionable.

Is there a short position on AMAM's shares?

Number of AMAM shares short is 1.16M. Shares short is a market sentiment in which investors have sold their shares short in a given stock but have not yet covered them or closed them out.

About how many outstanding AMAM shares are there?

As of today, 63.29M shares of AMAM are outstanding.

Is there many float in AMAM stock?

Float represents the number of tradeable shares in a specific stock. By subtracting restricted and closely-held shares from a firm's total outstanding shares, we can calculate its floating stock. The term "closely-held shares" refers to shares held by employees, major shareholders, and company insiders. At present, AMAM has 21.92M shares in float.

AMAM short ratio: what is it?

Short ratio is calculated by dividing the number of short shares, short interest or bets that shareholders will sell short from the average daily volume. A higher ratio indicates longer times needed to repurchase borrowed shares (sold). The short ratio for AMAM is 1.21.

Ambrx Biopharma (AMAM) insider trading activity: Get Latest News Today

Stock Outstanding Shares

Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.

ShortableNo

OptionableNo

Short Percent Of Outstanding Shares1.83

Short Percent Of Float3.28

Shares Outstanding63.29M

Shares Float21.92M

Shares Short1.16M

Short Ratio1.21

3.28%

Short % of Float

1.83%

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

2.1% Percentage of Shares held by All Insiders

103.43% Percentage of Shares held by All Institutions

105.64% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 103.43% of AMAM shares are held by financial institutions. SUSQUEHANNA INTERNATIONAL GROUP, LLP is the top corporate investor, holding 49.2K shares valued at $700.65K. A 0.08% stake in Ambrx Biopharma Inc. is owned by the company. TUDOR INVESTMENT CORP ET AL owns 10.8K shares valued at $153.79K, which translates its holding of 0.02% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Dec 31, 2023	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.08%	49.2K	700.65K	49.2K	+100.00%
Dec 31, 2023	TUDOR INVESTMENT CORP ET AL	0.02%	10.8K	153.79K	10.8K	+100.00%
Dec 31, 2023	MIRABELLA FINANCIAL SERVICES LLP	0.02%	10.04K	142.97K	10.04K	+100.00%
Dec 31, 2023	CHINA UNIVERSAL ASSET MANAGEMENT CO., LTD.	0.01%	7.3K	104K	7.3K	+100.00%
Dec 31, 2023	VIRTUS ETF ADVISERS LLC	0.01%	6.88K	97.94K	6.88K	+100.00%
Dec 31, 2023	GAMMA INVESTING LLC	0%	491	13.65K	491	+100.00%
Dec 31, 2023	DAIWA SECURITIES GROUP INC.	0%	258	4K	258	+100.00%
Dec 31, 2023	US BANCORP \DE\	0%	0	-	-1.02K	-100.00%
Dec 31, 2023	BANK OF AMERICA CORP /DE/	0%	0	-	-500	-100.00%
Dec 31, 2023	FIRST MANHATTAN CO. LLC.	0%	0	-	-135K	-100.00%
Dec 31, 2023	LEGAL & GENERAL GROUP PLC	0%	0	-	-1.38K	-100.00%
Dec 31, 2023	MORGAN STANLEY	0%	0	-	-24.57K	-100.00%
Dec 31, 2023	SCHONFELD STRATEGIC ADVISORS LLC	0.42%	263.74K	3.76M	263.74K	+100.00%
Dec 31, 2023	ALLIANCEBERNSTEIN L.P.	0.42%	258.36K	3.68M	258.36K	+100.00%
Dec 31, 2023	MONASHEE INVESTMENT MANAGEMENT LLC	0.33%	207.5K	2.95M	207.5K	+100.00%
Dec 31, 2023	BARCLAYS PLC	0.32%	199.95K	2.85M	199.95K	+100.00%
Dec 31, 2023	CORMORANT ASSET MANAGEMENT, LP	18.04%	11.23M	159.93M	11.23M	+100.00%
Dec 31, 2023	D. E. SHAW & CO., INC.	6.81%	4.24M	60.38M	4.24M	+100.00%
Dec 31, 2023	DEEP TRACK CAPITAL, LP	5.96%	3.71M	52.84M	3.71M	+100.00%
Dec 31, 2023	CONNECTIVE CAPITAL MANAGEMENT, LLC	0.09%	58.19K	828.61K	58.19K	+100.00%
Dec 31, 2023	ALTITUDE CREST PARTNERS INC.	0.07%	43.1K	613.74K	43.1K	+100.00%
Dec 31, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	26.81%	16.69M	237.65M	16.69M	+100.00%
Dec 31, 2023	NEXTECH INVEST LTD.	5.03%	3.13M	44.56M	3.13M	+100.00%
Dec 31, 2023	GOLDMAN SACHS GROUP INC	0.64%	399.65K	5.69M	399.65K	+100.00%
Dec 31, 2023	PARADIGM BIOCAPITAL ADVISORS LP	0.24%	150K	2.14M	150K	+100.00%
Dec 31, 2023	MANUFACTURERS LIFE INSURANCE COMPANY, THE	0.12%	77.47K	1.1M	77.47K	+100.00%
Dec 31, 2023	SATURN V CAPITAL MANAGEMENT LLC	0.08%	52.78K	751.6K	52.78K	+100.00%
Dec 31, 2023	LOGOS GLOBAL MANAGEMENT LP	3.37%	2.1M	29.9M	2.1M	+100.00%
Dec 31, 2023	BALYASNY ASSET MANAGEMENT L.P.	3.46%	2.15M	30.68M	2.15M	+100.00%
Dec 31, 2023	FMR LLC	2.37%	1.47M	20.99M	1.47M	+100.00%
Dec 31, 2023	VANGUARD GROUP INC	2.25%	1.4M	19.93M	1.4M	+100.00%
Dec 31, 2023	WUXI APPTEC CO., LTD.	1.61%	1M	14.24M	1M	+100.00%
Dec 31, 2023	BLACKROCK INC.	0.81%	501.6K	7.14M	501.6K	+100.00%
Dec 31, 2023	GHOST TREE CAPITAL, LLC	0.76%	475K	6.76M	475K	+100.00%
Dec 31, 2023	MILLENNIUM MANAGEMENT LLC	0.7%	432.71K	6.16M	432.71K	+100.00%
Dec 31, 2023	ALLY BRIDGE GROUP (NY) LLC	0.62%	385.38K	5.49M	385.38K	+100.00%
Dec 31, 2023	FEDERATED HERMES, INC.	0.53%	330.95K	4.71M	330.95K	+100.00%
Dec 31, 2023	MACQUARIE GROUP LTD	0.48%	300K	4.27M	300K	+100.00%
Dec 31, 2023	ORBIMED ADVISORS LLC	0.48%	296K	4.22M	296K	+100.00%
Dec 31, 2023	JANE STREET GROUP, LLC	0.47%	295.64K	4.21M	295.64K	+100.00%
Dec 31, 2023	HIGHVISTA STRATEGIES LLC	0.33%	203.12K	2.89M	203.12K	+100.00%
Dec 31, 2023	EXODUSPOINT CAPITAL MANAGEMENT, LP	0.23%	140.84K	2.01M	140.84K	+100.00%
Dec 31, 2023	TD ASSET MANAGEMENT INC	0.23%	140.26K	2M	140.26K	+100.00%
Dec 31, 2023	STEMPOINT CAPITAL LP	0.2%	126.1K	1.8M	126.1K	+100.00%
Dec 31, 2023	LIGHTHOUSE INVESTMENT PARTNERS, LLC	0.14%	88.93K	1.27M	88.93K	+100.00%
Dec 31, 2023	PARKMAN HEALTHCARE PARTNERS LLC	0.14%	87.68K	1.25M	87.68K	+100.00%
Dec 31, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.13%	81.16K	1.16M	81.16K	+100.00%
Dec 31, 2023	PERCEPTIVE ADVISORS LLC	0.13%	78.81K	1.12M	78.81K	+100.00%
Dec 31, 2023	VR ADVISER, LLC	3.33%	2.07M	29.48M	2.07M	+100.00%
Dec 31, 2023	WOODLINE PARTNERS LP	2.02%	1.26M	17.87M	1.26M	+100.00%
Dec 31, 2023	PRICE T ROWE ASSOCIATES INC /MD/	1.74%	1.08M	15.44M	1.08M	+100.00%
Dec 31, 2023	CITADEL ADVISORS LLC	0.12%	76K	1.08M	76K	+100.00%
Dec 31, 2023	ROYAL BANK OF CANADA	0.11%	70.09K	998K	70.09K	+100.00%
Dec 31, 2023	NWI MANAGEMENT LP	0.09%	53.65K	764K	53.65K	+100.00%
Dec 31, 2023	HEALTHINVEST PARTNERS AB	0.09%	57.85K	823.74K	57.85K	+100.00%
Dec 31, 2023	RENAISSANCE TECHNOLOGIES LLC	0.09%	53.9K	768K	53.9K	+100.00%
Dec 31, 2023	STATE STREET CORP	0.08%	50.02K	712.21K	50.02K	+100.00%
Dec 31, 2023	SIERRA SUMMIT ADVISORS LLC	0.06%	37.24K	530.26K	37.24K	+100.00%
Dec 31, 2023	FRED ALGER MANAGEMENT, LLC	0.05%	32.89K	468.3K	32.89K	+100.00%
Dec 31, 2023	VIRTU FINANCIAL LLC	0.03%	20.39K	290K	20.39K	+100.00%
Dec 31, 2023	GTS SECURITIES LLC	0.03%	18.9K	269.14K	18.9K	+100.00%
Dec 31, 2023	BAYESIAN CAPITAL MANAGEMENT, LP	0.03%	15.8K	225.05K	15.8K	+100.00%
Dec 31, 2023	SQUAREPOINT OPS LLC	0.02%	15.47K	220.29K	15.47K	+100.00%
Dec 31, 2023	OLD WELL PARTNERS, LLC	0.02%	14.4K	205.06K	14.4K	+100.00%
Dec 31, 2023	ENGINEERS GATE MANAGER LP	0.02%	12.39K	176.41K	12.39K	+100.00%
Sep 30, 2023	GROUP ONE TRADING, L.P.	0%	2.16K	-	2.16K	+100.00%
Sep 30, 2023	US BANCORP \DE\	0%	1.02K	-	0	0
Sep 30, 2023	TOWER RESEARCH CAPITAL LLC (TRC)	0%	235	-	235	+100.00%
Sep 30, 2023	ARTAL GROUP S.A.	0%	0	-	-702.29K	-100.00%
Sep 30, 2023	MOORE CAPITAL MANAGEMENT, LP	0%	0	-	-144.4K	-100.00%
Sep 30, 2023	EXCHANGE TRADED CONCEPTS, LLC	0%	0	-	-9.83K	-100.00%
Sep 30, 2023	HAP TRADING, LLC	0%	0	-	-32.4K	-100.00%
Sep 30, 2023	JANE STREET GROUP, LLC	0%	0	-	-17.54K	-100.00%
Sep 30, 2023	POINT72 ASSET MANAGEMENT, L.P.	0%	0	-	-349.94K	-100.00%
Sep 30, 2023	SCHONFELD STRATEGIC ADVISORS LLC	0%	0	-	-98.6K	-100.00%
Sep 30, 2023	QP WEALTH MANAGEMENT, LLC	0%	0	-	-12.67K	-100.00%
Sep 30, 2023	CORMORANT ASSET MANAGEMENT, LP	17.75%	9.92M	114.12M	307.53K	+3.20%
Sep 30, 2023	D. E. SHAW & CO., INC.	7.16%	4M	46.05M	-11.4K	-0.28%
Sep 30, 2023	COMMODORE CAPITAL LP	6.29%	3.52M	40.46M	343.56K	+10.82%
Sep 30, 2023	FEDERATED HERMES, INC.	4.29%	2.4M	27.55M	2.4M	+100.00%
Sep 30, 2023	VR ADVISER, LLC	3.7%	2.07M	23.81M	-414.96K	-16.70%
Sep 30, 2023	FMR LLC	3.15%	1.76M	20.25M	-449.56K	-20.34%
Sep 30, 2023	MACQUARIE GROUP LTD	0.45%	250K	2.88M	250K	+100.00%
Sep 30, 2023	PARADIGM BIOCAPITAL ADVISORS LP	0.38%	209.6K	2.41M	209.6K	+100.00%
Sep 30, 2023	FIRST MANHATTAN CO. LLC.	0.24%	135K	1.55M	0	0
Sep 30, 2023	LOGOS GLOBAL MANAGEMENT LP	0.21%	115K	1.32M	115K	+100.00%
Sep 30, 2023	TD ASSET MANAGEMENT INC	0.2%	110.46K	1.27M	46.73K	+73.32%
Sep 30, 2023	BOOTHBAY FUND MANAGEMENT, LLC	0.18%	99.1K	1.14M	99.1K	+100.00%
Sep 30, 2023	GREAT POINT PARTNERS LLC	0.17%	97.7K	1.12M	97.7K	+100.00%
Sep 30, 2023	MONASHEE INVESTMENT MANAGEMENT LLC	0.13%	70K	805K	70K	+100.00%
Sep 30, 2023	MANUFACTURERS LIFE INSURANCE COMPANY, THE	0.11%	59.28K	681.74K	85	+0.14%
Sep 30, 2023		0.03%	18.5K	212.75K	18.5K	+100.00%
Sep 30, 2023	MORGAN STANLEY	0.04%	24.57K	282.57K	21.5K	+700.36%
Sep 30, 2023	SQUAREPOINT OPS LLC	0.04%	22.13K	254.52K	5.65K	+34.30%
Sep 30, 2023	CUTLER GROUP LLC / CA	0.02%	9.1K	21K	-17K	-65.13%
Sep 30, 2023	VIRTUS ETF ADVISERS LLC	0.01%	6.79K	78.12K	-675	-9.04%
Sep 30, 2023	ROYAL BANK OF CANADA	0.01%	6.5K	75K	6.5K	+100.00%
Sep 30, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	29.86%	16.69M	191.92M	0	0
Sep 30, 2023	PRICE T ROWE ASSOCIATES INC /MD/	1.47%	821.56K	9.45M	-107.75K	-11.59%
Sep 30, 2023	CITADEL ADVISORS LLC	0.1%	53.5K	615.25K	-7.6K	-12.44%
Sep 30, 2023	GHOST TREE CAPITAL, LLC	0.94%	525K	6.04M	286.78K	+120.38%
Sep 30, 2023	EXODUSPOINT CAPITAL MANAGEMENT, LP	0.88%	493.39K	5.67M	15.84K	+3.32%
Sep 30, 2023	HOLOCENE ADVISORS, LP	0.87%	486.56K	5.6M	-427.19K	-46.75%
Sep 30, 2023	MILLENNIUM MANAGEMENT LLC	0.05%	30K	345K	30K	+100.00%
Sep 30, 2023	ALLY BRIDGE GROUP (NY) LLC	0.5%	281.09K	3.23M	281.09K	+100.00%
Sep 30, 2023	HIGHVISTA STRATEGIES LLC	0.35%	193.7K	2.23M	40.27K	+26.25%
Sep 30, 2023	NWI MANAGEMENT LP	0.29%	160.94K	1.85M	160.94K	+100.00%
Sep 30, 2023	PARKMAN HEALTHCARE PARTNERS LLC	0.27%	150K	1.73M	150K	+100.00%
Sep 30, 2023	SIMPLEX TRADING, LLC	0.12%	68.55K	788K	61.92K	+933.33%
Sep 30, 2023	STATE STREET CORP	0.09%	50.4K	579.6K	50.4K	+100.00%
Sep 30, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.09%	50.14K	576.61K	10.7K	+27.14%
Sep 30, 2023	BANK OF NEW YORK MELLON CORP	0.08%	47.43K	545.48K	47.43K	+100.00%
Sep 30, 2023	ALLIANCEBERNSTEIN L.P.	0.08%	47.3K	543.9K	47.3K	+100.00%
Sep 30, 2023	ALPS ADVISORS INC	0.08%	45.53K	523.61K	4.93K	+12.15%
Sep 30, 2023	APIS CAPITAL ADVISORS, LLC	0.06%	34K	391K	0	0
Sep 30, 2023	HHLR ADVISORS, LTD.	0.06%	31.74K	364.95K	31.74K	+100.00%
Sep 30, 2023	INNOVIS ASSET MANAGEMENT LLC	0.06%	31.14K	358.08K	14.31K	+85.05%
Sep 30, 2023	BELVEDERE TRADING LLC	0.01%	5.5K	63.25K	-12.4K	-69.27%
Sep 30, 2023	GTS SECURITIES LLC	0.03%	18.5K	212.75K	18.5K	+100.00%
Sep 30, 2023	UBS GROUP AG	0.01%	5.57K	64.1K	5.57K	+100.00%
Sep 30, 2023	IKARIAN CAPITAL, LLC	0.01%	4.93K	-	4.93K	+100.00%

Insiders

Among the AMAM insiders holding of 2.1% of the stake in company, DARWIN GLOBAL MANAGEMENT, LTD., 10 percent owner, holds the largest shares of 16.69M. CORMORANT ASSET MANAGEMENT, LP, 10 percent owner, is the second largest AMAM insider with ownership of 11.23M shares. O'CONNOR DANIEL J., President and CEO, stands third with possession of 342.85K shares of that stake.

Insiders	Designation	Shares Held
DARWIN GLOBAL MANAGEMENT, LTD.	10 percent owner	16.69M
CORMORANT ASSET MANAGEMENT, LP	10 percent owner	11.23M
O'CONNOR DANIEL J.	President and CEO	342.85K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Oct 27, 2023	O'CONNOR DANIEL J.	SALE	9.82	50.01K	491.12K	342.85K
Oct 23, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	6.99	1.31M	9.14M	11.23M
Sep 18, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.24	751.23K	6.94M	69.47M
Sep 15, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.05	1.4M	12.68M	68.71M
Jun 27, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	PURCHASE	0.00	5.38M	-	16.69M
Apr 20, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	11.60	886.63K	10.29M	67.31M
Apr 19, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	11.15	951.91K	10.61M	66.43M
Apr 18, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	11.27	3.38M	38.05M	65.47M
Apr 17, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	10.67	562.12K	6M	62.1M
Apr 14, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.96	841.97K	8.38M	61.54M
Apr 13, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.16	1.19M	10.94M	60.69M
Mar 16, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	10.15	500K	5.07M	53.5M
Mar 15, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	10.60	250K	2.65M	53M
Mar 14, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.95	250K	2.49M	52.75M
Mar 06, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	PURCHASE	0.00	3.62M	-	11.3M
Feb 28, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	PURCHASE	0.00	39.96K	-	7.69M
Feb 27, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	PURCHASE	0.00	65.13K	-	7.65M

Frequently Asked Questions

Stock Outstanding Shares

ShortableNo

OptionableNo

Short Percent Of Outstanding Shares1.83

Short Percent Of Float3.28

Shares Outstanding63.29M

Shares Float21.92M

Shares Short1.16M

Short Ratio1.21

3.28%

Short % of Float

1.83%

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

2.1% Percentage of Shares held by All Insiders

103.43% Percentage of Shares held by All Institutions

105.64% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Dec 31, 2023	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.08%	49.2K	700.65K	49.2K	+100.00%
Dec 31, 2023	TUDOR INVESTMENT CORP ET AL	0.02%	10.8K	153.79K	10.8K	+100.00%
Dec 31, 2023	MIRABELLA FINANCIAL SERVICES LLP	0.02%	10.04K	142.97K	10.04K	+100.00%
Dec 31, 2023	CHINA UNIVERSAL ASSET MANAGEMENT CO., LTD.	0.01%	7.3K	104K	7.3K	+100.00%
Dec 31, 2023	VIRTUS ETF ADVISERS LLC	0.01%	6.88K	97.94K	6.88K	+100.00%
Dec 31, 2023	GAMMA INVESTING LLC	0%	491	13.65K	491	+100.00%
Dec 31, 2023	DAIWA SECURITIES GROUP INC.	0%	258	4K	258	+100.00%
Dec 31, 2023	US BANCORP \DE\	0%	0	-	-1.02K	-100.00%
Dec 31, 2023	BANK OF AMERICA CORP /DE/	0%	0	-	-500	-100.00%
Dec 31, 2023	FIRST MANHATTAN CO. LLC.	0%	0	-	-135K	-100.00%
Dec 31, 2023	LEGAL & GENERAL GROUP PLC	0%	0	-	-1.38K	-100.00%
Dec 31, 2023	MORGAN STANLEY	0%	0	-	-24.57K	-100.00%
Dec 31, 2023	SCHONFELD STRATEGIC ADVISORS LLC	0.42%	263.74K	3.76M	263.74K	+100.00%
Dec 31, 2023	ALLIANCEBERNSTEIN L.P.	0.42%	258.36K	3.68M	258.36K	+100.00%
Dec 31, 2023	MONASHEE INVESTMENT MANAGEMENT LLC	0.33%	207.5K	2.95M	207.5K	+100.00%
Dec 31, 2023	BARCLAYS PLC	0.32%	199.95K	2.85M	199.95K	+100.00%
Dec 31, 2023	CORMORANT ASSET MANAGEMENT, LP	18.04%	11.23M	159.93M	11.23M	+100.00%
Dec 31, 2023	D. E. SHAW & CO., INC.	6.81%	4.24M	60.38M	4.24M	+100.00%
Dec 31, 2023	DEEP TRACK CAPITAL, LP	5.96%	3.71M	52.84M	3.71M	+100.00%
Dec 31, 2023	CONNECTIVE CAPITAL MANAGEMENT, LLC	0.09%	58.19K	828.61K	58.19K	+100.00%
Dec 31, 2023	ALTITUDE CREST PARTNERS INC.	0.07%	43.1K	613.74K	43.1K	+100.00%
Dec 31, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	26.81%	16.69M	237.65M	16.69M	+100.00%
Dec 31, 2023	NEXTECH INVEST LTD.	5.03%	3.13M	44.56M	3.13M	+100.00%
Dec 31, 2023	GOLDMAN SACHS GROUP INC	0.64%	399.65K	5.69M	399.65K	+100.00%
Dec 31, 2023	PARADIGM BIOCAPITAL ADVISORS LP	0.24%	150K	2.14M	150K	+100.00%
Dec 31, 2023	MANUFACTURERS LIFE INSURANCE COMPANY, THE	0.12%	77.47K	1.1M	77.47K	+100.00%
Dec 31, 2023	SATURN V CAPITAL MANAGEMENT LLC	0.08%	52.78K	751.6K	52.78K	+100.00%
Dec 31, 2023	LOGOS GLOBAL MANAGEMENT LP	3.37%	2.1M	29.9M	2.1M	+100.00%
Dec 31, 2023	BALYASNY ASSET MANAGEMENT L.P.	3.46%	2.15M	30.68M	2.15M	+100.00%
Dec 31, 2023	FMR LLC	2.37%	1.47M	20.99M	1.47M	+100.00%
Dec 31, 2023	VANGUARD GROUP INC	2.25%	1.4M	19.93M	1.4M	+100.00%
Dec 31, 2023	WUXI APPTEC CO., LTD.	1.61%	1M	14.24M	1M	+100.00%
Dec 31, 2023	BLACKROCK INC.	0.81%	501.6K	7.14M	501.6K	+100.00%
Dec 31, 2023	GHOST TREE CAPITAL, LLC	0.76%	475K	6.76M	475K	+100.00%
Dec 31, 2023	MILLENNIUM MANAGEMENT LLC	0.7%	432.71K	6.16M	432.71K	+100.00%
Dec 31, 2023	ALLY BRIDGE GROUP (NY) LLC	0.62%	385.38K	5.49M	385.38K	+100.00%
Dec 31, 2023	FEDERATED HERMES, INC.	0.53%	330.95K	4.71M	330.95K	+100.00%
Dec 31, 2023	MACQUARIE GROUP LTD	0.48%	300K	4.27M	300K	+100.00%
Dec 31, 2023	ORBIMED ADVISORS LLC	0.48%	296K	4.22M	296K	+100.00%
Dec 31, 2023	JANE STREET GROUP, LLC	0.47%	295.64K	4.21M	295.64K	+100.00%
Dec 31, 2023	HIGHVISTA STRATEGIES LLC	0.33%	203.12K	2.89M	203.12K	+100.00%
Dec 31, 2023	EXODUSPOINT CAPITAL MANAGEMENT, LP	0.23%	140.84K	2.01M	140.84K	+100.00%
Dec 31, 2023	TD ASSET MANAGEMENT INC	0.23%	140.26K	2M	140.26K	+100.00%
Dec 31, 2023	STEMPOINT CAPITAL LP	0.2%	126.1K	1.8M	126.1K	+100.00%
Dec 31, 2023	LIGHTHOUSE INVESTMENT PARTNERS, LLC	0.14%	88.93K	1.27M	88.93K	+100.00%
Dec 31, 2023	PARKMAN HEALTHCARE PARTNERS LLC	0.14%	87.68K	1.25M	87.68K	+100.00%
Dec 31, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.13%	81.16K	1.16M	81.16K	+100.00%
Dec 31, 2023	PERCEPTIVE ADVISORS LLC	0.13%	78.81K	1.12M	78.81K	+100.00%
Dec 31, 2023	VR ADVISER, LLC	3.33%	2.07M	29.48M	2.07M	+100.00%
Dec 31, 2023	WOODLINE PARTNERS LP	2.02%	1.26M	17.87M	1.26M	+100.00%
Dec 31, 2023	PRICE T ROWE ASSOCIATES INC /MD/	1.74%	1.08M	15.44M	1.08M	+100.00%
Dec 31, 2023	CITADEL ADVISORS LLC	0.12%	76K	1.08M	76K	+100.00%
Dec 31, 2023	ROYAL BANK OF CANADA	0.11%	70.09K	998K	70.09K	+100.00%
Dec 31, 2023	NWI MANAGEMENT LP	0.09%	53.65K	764K	53.65K	+100.00%
Dec 31, 2023	HEALTHINVEST PARTNERS AB	0.09%	57.85K	823.74K	57.85K	+100.00%
Dec 31, 2023	RENAISSANCE TECHNOLOGIES LLC	0.09%	53.9K	768K	53.9K	+100.00%
Dec 31, 2023	STATE STREET CORP	0.08%	50.02K	712.21K	50.02K	+100.00%
Dec 31, 2023	SIERRA SUMMIT ADVISORS LLC	0.06%	37.24K	530.26K	37.24K	+100.00%
Dec 31, 2023	FRED ALGER MANAGEMENT, LLC	0.05%	32.89K	468.3K	32.89K	+100.00%
Dec 31, 2023	VIRTU FINANCIAL LLC	0.03%	20.39K	290K	20.39K	+100.00%
Dec 31, 2023	GTS SECURITIES LLC	0.03%	18.9K	269.14K	18.9K	+100.00%
Dec 31, 2023	BAYESIAN CAPITAL MANAGEMENT, LP	0.03%	15.8K	225.05K	15.8K	+100.00%
Dec 31, 2023	SQUAREPOINT OPS LLC	0.02%	15.47K	220.29K	15.47K	+100.00%
Dec 31, 2023	OLD WELL PARTNERS, LLC	0.02%	14.4K	205.06K	14.4K	+100.00%
Dec 31, 2023	ENGINEERS GATE MANAGER LP	0.02%	12.39K	176.41K	12.39K	+100.00%
Sep 30, 2023	GROUP ONE TRADING, L.P.	0%	2.16K	-	2.16K	+100.00%
Sep 30, 2023	US BANCORP \DE\	0%	1.02K	-	0	0
Sep 30, 2023	TOWER RESEARCH CAPITAL LLC (TRC)	0%	235	-	235	+100.00%
Sep 30, 2023	ARTAL GROUP S.A.	0%	0	-	-702.29K	-100.00%
Sep 30, 2023	MOORE CAPITAL MANAGEMENT, LP	0%	0	-	-144.4K	-100.00%
Sep 30, 2023	EXCHANGE TRADED CONCEPTS, LLC	0%	0	-	-9.83K	-100.00%
Sep 30, 2023	HAP TRADING, LLC	0%	0	-	-32.4K	-100.00%
Sep 30, 2023	JANE STREET GROUP, LLC	0%	0	-	-17.54K	-100.00%
Sep 30, 2023	POINT72 ASSET MANAGEMENT, L.P.	0%	0	-	-349.94K	-100.00%
Sep 30, 2023	SCHONFELD STRATEGIC ADVISORS LLC	0%	0	-	-98.6K	-100.00%
Sep 30, 2023	QP WEALTH MANAGEMENT, LLC	0%	0	-	-12.67K	-100.00%
Sep 30, 2023	CORMORANT ASSET MANAGEMENT, LP	17.75%	9.92M	114.12M	307.53K	+3.20%
Sep 30, 2023	D. E. SHAW & CO., INC.	7.16%	4M	46.05M	-11.4K	-0.28%
Sep 30, 2023	COMMODORE CAPITAL LP	6.29%	3.52M	40.46M	343.56K	+10.82%
Sep 30, 2023	FEDERATED HERMES, INC.	4.29%	2.4M	27.55M	2.4M	+100.00%
Sep 30, 2023	VR ADVISER, LLC	3.7%	2.07M	23.81M	-414.96K	-16.70%
Sep 30, 2023	FMR LLC	3.15%	1.76M	20.25M	-449.56K	-20.34%
Sep 30, 2023	MACQUARIE GROUP LTD	0.45%	250K	2.88M	250K	+100.00%
Sep 30, 2023	PARADIGM BIOCAPITAL ADVISORS LP	0.38%	209.6K	2.41M	209.6K	+100.00%
Sep 30, 2023	FIRST MANHATTAN CO. LLC.	0.24%	135K	1.55M	0	0
Sep 30, 2023	LOGOS GLOBAL MANAGEMENT LP	0.21%	115K	1.32M	115K	+100.00%
Sep 30, 2023	TD ASSET MANAGEMENT INC	0.2%	110.46K	1.27M	46.73K	+73.32%
Sep 30, 2023	BOOTHBAY FUND MANAGEMENT, LLC	0.18%	99.1K	1.14M	99.1K	+100.00%
Sep 30, 2023	GREAT POINT PARTNERS LLC	0.17%	97.7K	1.12M	97.7K	+100.00%
Sep 30, 2023	MONASHEE INVESTMENT MANAGEMENT LLC	0.13%	70K	805K	70K	+100.00%
Sep 30, 2023	MANUFACTURERS LIFE INSURANCE COMPANY, THE	0.11%	59.28K	681.74K	85	+0.14%
Sep 30, 2023		0.03%	18.5K	212.75K	18.5K	+100.00%
Sep 30, 2023	MORGAN STANLEY	0.04%	24.57K	282.57K	21.5K	+700.36%
Sep 30, 2023	SQUAREPOINT OPS LLC	0.04%	22.13K	254.52K	5.65K	+34.30%
Sep 30, 2023	CUTLER GROUP LLC / CA	0.02%	9.1K	21K	-17K	-65.13%
Sep 30, 2023	VIRTUS ETF ADVISERS LLC	0.01%	6.79K	78.12K	-675	-9.04%
Sep 30, 2023	ROYAL BANK OF CANADA	0.01%	6.5K	75K	6.5K	+100.00%
Sep 30, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	29.86%	16.69M	191.92M	0	0
Sep 30, 2023	PRICE T ROWE ASSOCIATES INC /MD/	1.47%	821.56K	9.45M	-107.75K	-11.59%
Sep 30, 2023	CITADEL ADVISORS LLC	0.1%	53.5K	615.25K	-7.6K	-12.44%
Sep 30, 2023	GHOST TREE CAPITAL, LLC	0.94%	525K	6.04M	286.78K	+120.38%
Sep 30, 2023	EXODUSPOINT CAPITAL MANAGEMENT, LP	0.88%	493.39K	5.67M	15.84K	+3.32%
Sep 30, 2023	HOLOCENE ADVISORS, LP	0.87%	486.56K	5.6M	-427.19K	-46.75%
Sep 30, 2023	MILLENNIUM MANAGEMENT LLC	0.05%	30K	345K	30K	+100.00%
Sep 30, 2023	ALLY BRIDGE GROUP (NY) LLC	0.5%	281.09K	3.23M	281.09K	+100.00%
Sep 30, 2023	HIGHVISTA STRATEGIES LLC	0.35%	193.7K	2.23M	40.27K	+26.25%
Sep 30, 2023	NWI MANAGEMENT LP	0.29%	160.94K	1.85M	160.94K	+100.00%
Sep 30, 2023	PARKMAN HEALTHCARE PARTNERS LLC	0.27%	150K	1.73M	150K	+100.00%
Sep 30, 2023	SIMPLEX TRADING, LLC	0.12%	68.55K	788K	61.92K	+933.33%
Sep 30, 2023	STATE STREET CORP	0.09%	50.4K	579.6K	50.4K	+100.00%
Sep 30, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.09%	50.14K	576.61K	10.7K	+27.14%
Sep 30, 2023	BANK OF NEW YORK MELLON CORP	0.08%	47.43K	545.48K	47.43K	+100.00%
Sep 30, 2023	ALLIANCEBERNSTEIN L.P.	0.08%	47.3K	543.9K	47.3K	+100.00%
Sep 30, 2023	ALPS ADVISORS INC	0.08%	45.53K	523.61K	4.93K	+12.15%
Sep 30, 2023	APIS CAPITAL ADVISORS, LLC	0.06%	34K	391K	0	0
Sep 30, 2023	HHLR ADVISORS, LTD.	0.06%	31.74K	364.95K	31.74K	+100.00%
Sep 30, 2023	INNOVIS ASSET MANAGEMENT LLC	0.06%	31.14K	358.08K	14.31K	+85.05%
Sep 30, 2023	BELVEDERE TRADING LLC	0.01%	5.5K	63.25K	-12.4K	-69.27%
Sep 30, 2023	GTS SECURITIES LLC	0.03%	18.5K	212.75K	18.5K	+100.00%
Sep 30, 2023	UBS GROUP AG	0.01%	5.57K	64.1K	5.57K	+100.00%
Sep 30, 2023	IKARIAN CAPITAL, LLC	0.01%	4.93K	-	4.93K	+100.00%

Insiders

Insiders	Designation	Shares Held
DARWIN GLOBAL MANAGEMENT, LTD.	10 percent owner	16.69M
CORMORANT ASSET MANAGEMENT, LP	10 percent owner	11.23M
O'CONNOR DANIEL J.	President and CEO	342.85K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Oct 27, 2023	O'CONNOR DANIEL J.	SALE	9.82	50.01K	491.12K	342.85K
Oct 23, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	6.99	1.31M	9.14M	11.23M
Sep 18, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.24	751.23K	6.94M	69.47M
Sep 15, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.05	1.4M	12.68M	68.71M
Jun 27, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	PURCHASE	0.00	5.38M	-	16.69M
Apr 20, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	11.60	886.63K	10.29M	67.31M
Apr 19, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	11.15	951.91K	10.61M	66.43M
Apr 18, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	11.27	3.38M	38.05M	65.47M
Apr 17, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	10.67	562.12K	6M	62.1M
Apr 14, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.96	841.97K	8.38M	61.54M
Apr 13, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.16	1.19M	10.94M	60.69M
Mar 16, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	10.15	500K	5.07M	53.5M
Mar 15, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	10.60	250K	2.65M	53M
Mar 14, 2023	CORMORANT ASSET MANAGEMENT, LP	PURCHASE	9.95	250K	2.49M	52.75M
Mar 06, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	PURCHASE	0.00	3.62M	-	11.3M
Feb 28, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	PURCHASE	0.00	39.96K	-	7.69M
Feb 27, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	PURCHASE	0.00	65.13K	-	7.65M

AMAM Stock Ownership Breakdown

Ambrx Biopharma

Stock Outstanding Shares

Market Insider

Institutional Ownership

Insiders

Buying/Selling by Insiders

Frequently Asked Questions

Stock Outstanding Shares

Market Insider

Institutional Ownership

Insiders

Buying/Selling by Insiders

Frequently Asked Questions