Werewolf Therapeutics (HOWL) insider trading activity: Get Latest News Today

HOWL 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.

ShortableYes

OptionableYes

Short Percent Of Outstanding Shares4.17

Short Percent Of Float7.02

Shares Outstanding44.56M

Shares Float25.62M

Shares Short1.86M

Short Ratio5.42

7.02%

Short % of Float

4.17%

Short % of Shares Outstanding

Market Insider HOWL

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

6.11% Percentage of Shares held by All Insiders

72.43% Percentage of Shares held by All Institutions

77.15% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 72.43% of HOWL shares are held by financial institutions. VERITION FUND MANAGEMENT LLC is the top corporate investor, holding 571.47K shares valued at $3.70M. A 1.56% stake in Werewolf Therapeutics, Inc. is owned by the company. QUBE RESEARCH & TECHNOLOGIES LTD owns 117.01K shares valued at $758.24K, which translates its holding of 0.32% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
2024-03-31	VERITION FUND MANAGEMENT LLC	1.56%	571.47K	3.7M	571.47K	+100.00%
2024-03-31	QUBE RESEARCH & TECHNOLOGIES LTD	0.32%	117.01K	758.24K	114.63K	+4,808.26%
2024-03-31	DIMENSIONAL FUND ADVISORS LP	0.31%	111.63K	723.33K	48.7K	+77.40%
2024-03-31	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.23%	85.09K	551.36K	0	0
2024-03-31	RENAISSANCE TECHNOLOGIES LLC	0.23%	84.2K	546K	-23.31K	-21.68%
2024-03-31	MAN GROUP PLC	0.22%	79.64K	516.06K	79.64K	+100.00%
2024-03-31	CITIGROUP INC	0.2%	71.56K	463.68K	71.56K	+100.00%
2024-03-31	JPMORGAN CHASE & CO	0.19%	71.18K	461.27K	71.1K	+85,663.86%
2024-03-31	STATE STREET CORP	0.19%	71.17K	461.17K	-12.3K	-14.74%
2024-03-31	EDGEWOOD MANAGEMENT LLC	0.14%	50K	324K	0	0
2024-03-31	NORTHERN TRUST CORP	0.13%	48.5K	314.29K	-1.15K	-2.31%
2024-03-31	CUBIST SYSTEMATIC STRATEGIES, LLC	0.11%	40.65K	263.41K	40.65K	+100.00%
2024-03-31	HRT FINANCIAL LP	0.1%	37.63K	243K	37.63K	+100.00%
2024-03-31	ROYCE & ASSOCIATES LP	0.1%	37.32K	241.84K	37.32K	+100.00%
2024-03-31	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.08%	27.7K	179.5K	27.7K	+100.00%
2024-03-31	DENALI ADVISORS LLC	0.07%	26.6K	172.37K	26.6K	+100.00%
2024-03-31	MARSHALL WACE, LLP	0.07%	26.28K	170.32K	26.28K	+100.00%
2024-03-31	MORGAN STANLEY	0.06%	20.58K	133.35K	19.98K	+3,329.83%
2024-03-31	BREVAN HOWARD CAPITAL MANAGEMENT LP	0.05%	18.91K	122.54K	18.91K	+100.00%
2024-03-31	Y-INTERCEPT (HONG KONG) LTD	0.04%	14.15K	91.72K	14.15K	+100.00%
2024-03-31	ALYESKA INVESTMENT GROUP, L.P.	0.64%	235.71K	1.53M	-200K	-45.90%
2024-03-31	EXODUSPOINT CAPITAL MANAGEMENT, LP	0.07%	25.24K	164K	25.24K	+100.00%
2024-03-31	RA CAPITAL MANAGEMENT, L.P.	16.8%	6.14M	39.82M	0	0
2024-03-31	HBK SORCE ADVISORY LLC	0.04%	13.23K	85.71K	-13.23K	-50.00%
2024-03-31	OMERS ADMINISTRATION CORP	0.03%	10.8K	69.98K	10.8K	+100.00%
2024-03-31	FINANCIAL PERSPECTIVES, INC	0.02%	6.75K	43.74K	0	0
2024-03-31	MACQUARIE GROUP LTD	0%	940	6	940	+100.00%
2024-03-31	SIMPLEX TRADING, LLC	0%	202	1K	-5.5K	-96.45%
2024-03-31	WELLS FARGO & COMPANY/MN	0%	194	1.26K	40	+25.97%
2024-03-31	UBS GROUP AG	0%	37	240	-963	-96.30%
2024-03-31	GROUP ONE TRADING, L.P.	0%	0	-	-100	-100.00%
2024-03-31	PRUDENTIAL FINANCIAL INC	0%	0	-	-15.4K	-100.00%
2024-03-31	LIGHTHOUSE INVESTMENT PARTNERS, LLC	0%	0	-	-22.47K	-100.00%
2024-03-31	PFM HEALTH SCIENCES, LP	8.22%	3.01M	19.48M	-461.44K	-13.31%
2024-03-31	DC FUNDS, LP	1.61%	589.1K	3.82M	0	0
2024-03-31	LAURION CAPITAL MANAGEMENT LP	0.55%	201.24K	1.3M	122.02K	+154.04%
2024-03-31	TWO SIGMA INVESTMENTS, LP	0.51%	185.06K	1.2M	38.32K	+26.12%
2024-03-31	BLACKROCK INC.	0.45%	164.79K	1.07M	92.56K	+128.16%
2024-03-31	AMERICAN CENTURY COMPANIES INC	0.07%	24.98K	161.86K	24.98K	+100.00%
2024-03-31	SQUAREPOINT OPS LLC	0.07%	24.59K	159.37K	24.59K	+100.00%
2024-03-31	RAYMOND JAMES FINANCIAL SERVICES ADVISORS, INC.	0.06%	23.66K	153.31K	23.66K	+100.00%
2024-03-31	POINT72 ASIA (SINGAPORE) PTE. LTD.	0.06%	23.26K	150.75K	23.26K	+100.00%
2024-03-31	BALYASNY ASSET MANAGEMENT L.P.	0.06%	23.05K	149.35K	23.05K	+100.00%
2024-03-31	MPM ASSET MANAGEMENT LLC	11.71%	4.28M	27.76M	0	0
2024-03-31	ADAGE CAPITAL PARTNERS GP, L.L.C.	8.21%	3M	19.44M	-33.66K	-1.11%
2024-03-31	BIOIMPACT CAPITAL LLC	6.53%	2.39M	15.47M	0	0
2024-03-31	BANK OF AMERICA CORP /DE/	5.14%	1.88M	12.19M	-214.97K	-10.26%
2024-03-31	JANUS HENDERSON GROUP PLC	4.62%	1.69M	10.92M	1.69M	+100.00%
2024-03-31	RUBRIC CAPITAL MANAGEMENT LP	4.43%	1.62M	10.5M	-314.32K	-16.24%
2024-03-31	VANGUARD GROUP INC	3.03%	1.11M	7.18M	233.91K	+26.78%
2024-03-31	MONASHEE INVESTMENT MANAGEMENT LLC	2.43%	890K	5.77M	890K	+100.00%
2024-03-31	EAGLE HEALTH INVESTMENTS LP	1.91%	700K	4.54M	700K	+100.00%
2024-03-31	SPHERA FUNDS MANAGEMENT LTD.	1.71%	626.81K	4.06M	0	0
2024-03-31	MILLENNIUM MANAGEMENT LLC	1.55%	565.42K	3.66M	121.06K	+27.24%
2024-03-31	GEODE CAPITAL MANAGEMENT, LLC	0.71%	259.68K	1.68M	65.37K	+33.64%
2024-03-31	TWO SIGMA ADVISERS, LP	0.68%	247.6K	1.6M	70.3K	+39.65%
2024-03-31	ACADIAN ASSET MANAGEMENT LLC	0.47%	172.88K	1.12M	94.21K	+119.75%
2024-03-31	GOLDMAN SACHS GROUP INC	0.47%	172.79K	1.12M	172.79K	+100.00%
2024-03-31	JANE STREET GROUP, LLC	0.43%	157.23K	1.02M	142.74K	+985.29%
2023-12-31	MPM ASSET MANAGEMENT LLC	12.02%	4.28M	16.54M	0	0
2023-12-31	PFM HEALTH SCIENCES, LP	9.73%	3.47M	13.39M	909.9K	+35.57%
2023-12-31	ADAGE CAPITAL PARTNERS GP, L.L.C.	8.51%	3.03M	11.71M	2.03M	+203.24%
2023-12-31	BIOIMPACT CAPITAL LLC	6.7%	2.39M	9.22M	0	0
2023-12-31	BANK OF AMERICA CORP /DE/	5.88%	2.1M	8.09M	564.16K	+36.83%
2023-12-31	RUBRIC CAPITAL MANAGEMENT LP	5.43%	1.94M	7.47M	0	0
2023-12-31	VANGUARD GROUP INC	2.45%	873.44K	3.37M	325.79K	+59.49%
2023-12-31	SPHERA FUNDS MANAGEMENT LTD.	1.76%	626.81K	2.42M	0	0
2023-12-31	DC FUNDS, LP	1.65%	589.1K	2.27M	0	0
2023-12-31	MILLENNIUM MANAGEMENT LLC	1.25%	444.36K	1.72M	-22.26K	-4.77%
2023-12-31	ALYESKA INVESTMENT GROUP, L.P.	1.22%	435.71K	1.68M	37.9K	+9.53%
2023-12-31	GEODE CAPITAL MANAGEMENT, LLC	0.55%	194.31K	750.21K	20.06K	+11.51%
2023-12-31	TWO SIGMA ADVISERS, LP	0.5%	177.3K	684.38K	177.3K	+100.00%
2023-12-31	TWO SIGMA INVESTMENTS, LP	0.41%	146.74K	566.4K	146.74K	+100.00%
2023-12-31	RENAISSANCE TECHNOLOGIES LLC	0.3%	107.51K	415K	62.31K	+137.85%
2023-12-31	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.24%	85.09K	328.43K	-10.43K	-10.92%
2023-12-31	STATE STREET CORP	0.23%	83.47K	322.19K	32.7K	+64.41%
2023-12-31	LAURION CAPITAL MANAGEMENT LP	0.22%	79.21K	305.76K	-443.69K	-84.85%
2023-12-31	ACADIAN ASSET MANAGEMENT LLC	0.22%	78.67K	303K	0	0
2023-12-31	BLACKROCK INC.	0.2%	72.23K	278.8K	-4.89K	-6.33%
2023-12-31	DIMENSIONAL FUND ADVISORS LP	0.18%	62.92K	242.88K	4.8K	+8.25%
2023-12-31	EDGEWOOD MANAGEMENT LLC	0.14%	50K	193K	0	0
2023-12-31	NORTHERN TRUST CORP	0.14%	49.65K	191.64K	23.58K	+90.46%
2023-12-31	HBK SORCE ADVISORY LLC	0.07%	26.45K	102.11K	0	0
2023-12-31	LIGHTHOUSE INVESTMENT PARTNERS, LLC	0.06%	22.47K	86.74K	22.47K	+100.00%
2023-12-31	VIRTU FINANCIAL LLC	0.06%	20.38K	79K	20.38K	+100.00%
2023-12-31	PRUDENTIAL FINANCIAL INC	0.04%	15.4K	59.44K	0	0
2023-12-31	JANE STREET GROUP, LLC	0.04%	14.49K	55.92K	14.49K	+100.00%
2023-12-31	CERTUITY, LLC	0.03%	10K	38.6K	10K	+100.00%
2023-12-31		0.02%	6.75K	26.06K	3K	+80.00%
2023-12-31	SIMPLEX TRADING, LLC	0.02%	5.7K	21K	-257	-4.32%
2023-12-31	QUBE RESEARCH & TECHNOLOGIES LTD	0.01%	2.38K	9.2K	2.38K	+119,100.00%
2023-12-31	UBS GROUP AG	0%	1K	3.86K	0	0
2023-12-31	MORGAN STANLEY	0%	600	2.32K	-1.9K	-76.00%
2023-12-31	BAYSTATE WEALTH MANAGEMENT LLC	0%	300	1.16K	300	+100.00%
2023-12-31	WELLS FARGO & COMPANY/MN	0%	154	594	8	+5.48%
2023-12-31	GROUP ONE TRADING, L.P.	0%	100	386K	100	+100.00%
2023-12-31	CITADEL ADVISORS LLC	0%	100	386	100	+100.00%
2023-12-31	JPMORGAN CHASE & CO	0%	83	320	-665	-88.90%
2023-12-31	ROYAL BANK OF CANADA	0%	0	-	-335	-100.00%
2023-12-31	GHP INVESTMENT ADVISORS, INC.	0%	0	-	-80	-100.00%
2023-12-31	TOWER RESEARCH CAPITAL LLC (TRC)	0%	0	-	-2.35K	-100.00%
2023-12-31	SCHONFELD STRATEGIC ADVISORS LLC	0%	0	-	-174.72K	-100.00%
2023-12-31	RA CAPITAL MANAGEMENT, L.P.	17.23%	6.14M	23.72M	0	0

HOWL Insiders

Among the HOWL insiders holding of 6.11% of the stake in company, GADICKE ANSBERT, 10 percent owner, holds the largest shares of 6.67M. RA CAPITAL MANAGEMENT, L.P., director, is the second largest HOWL insider with ownership of 5.7M shares. EVNIN LUKE, , stands third with possession of 4.28M shares of that stake.

Insiders	Designation	Shares Held
GADICKE ANSBERT	10 percent owner	6.67M
RA CAPITAL MANAGEMENT, L.P.	director	5.7M
EVNIN LUKE		4.28M
MPM BIOVENTURES 2014, L.P.	10 percent owner	3.19M
FLYNN JAMES E	10 percent owner	2.55M
ASANUMA SAKAE		2.07M
TAIHO VENTURES LLC	10 percent owner	2.07M
LAZARUS ALON		2.05M
ARKIN BIO VENTURES 2 L.P.	10 percent owner	2.05M
LONGWOOD FUND III GP, LLC	10 percent owner	1.68M
SPHERA GLOBAL HEALTHCARE MANAGEMENT LP	10 percent owner	788K
LEONARD REID	Chief Operating Officer	122.16K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
2023-01-06	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	2.21	1.85M	4.1M	5.7M
2021-12-15	LEONARD REID	SALE	13.97	135	1.89K	122.16K
2021-06-16	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	13.37	9.29K	124.14K	4.29M
2021-06-15	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	12.95	7.96K	103.06K	4.28M
2021-06-14	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	12.75	306.06K	3.9M	4.27M
2021-05-04	SPHERA GLOBAL HEALTHCARE MANAGEMENT LP	PURCHASE	16.00	475K	7.6M	788K
2021-05-04	MPM BIOVENTURES 2014, L.P.	PURCHASE	16.00	125.76K	2.01M	3.19M
2021-05-04	LAZARUS ALON	PURCHASE	16.00	400K	6.4M	2.05M
2021-05-04	FLYNN JAMES E	PURCHASE	16.00	800K	12.8M	2.55M
2021-05-04	LONGWOOD FUND III GP, LLC	PURCHASE	16.00	250K	4M	1.68M
2021-05-04	GADICKE ANSBERT	PURCHASE	16.00	245K	3.92M	6.67M
2021-05-04	ARKIN BIO VENTURES 2 L.P.	PURCHASE	16.00	400K	6.4M	2.05M
2021-05-04	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	16.00	105.79K	1.69M	443.83K
2021-05-04	EVNIN LUKE	PURCHASE	16.00	150.8K	2.41M	4.28M
2021-05-04	TAIHO VENTURES LLC	PURCHASE	16.00	312.5K	5M	2.07M
2021-05-04	ASANUMA SAKAE	PURCHASE	16.00	312.5K	5M	2.07M
2020-12-23	LAZARUS ALON	PURCHASE	0.00	3.56M	-	3.56M
2020-12-23	EVNIN LUKE	PURCHASE	0.00	7.94M	-	7.94M
2020-12-23	ASANUMA SAKAE	PURCHASE	0.00	3.8M	-	3.8M

Frequently Asked Questions

HOWL Stock Outstanding Shares

ShortableYes

OptionableYes

Short Percent Of Outstanding Shares4.17

Short Percent Of Float7.02

Shares Outstanding44.56M

Shares Float25.62M

Shares Short1.86M

Short Ratio5.42

7.02%

Short % of Float

4.17%

Short % of Shares Outstanding

Market Insider HOWL

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

6.11% Percentage of Shares held by All Insiders

72.43% Percentage of Shares held by All Institutions

77.15% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
2024-03-31	VERITION FUND MANAGEMENT LLC	1.56%	571.47K	3.7M	571.47K	+100.00%
2024-03-31	QUBE RESEARCH & TECHNOLOGIES LTD	0.32%	117.01K	758.24K	114.63K	+4,808.26%
2024-03-31	DIMENSIONAL FUND ADVISORS LP	0.31%	111.63K	723.33K	48.7K	+77.40%
2024-03-31	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.23%	85.09K	551.36K	0	0
2024-03-31	RENAISSANCE TECHNOLOGIES LLC	0.23%	84.2K	546K	-23.31K	-21.68%
2024-03-31	MAN GROUP PLC	0.22%	79.64K	516.06K	79.64K	+100.00%
2024-03-31	CITIGROUP INC	0.2%	71.56K	463.68K	71.56K	+100.00%
2024-03-31	JPMORGAN CHASE & CO	0.19%	71.18K	461.27K	71.1K	+85,663.86%
2024-03-31	STATE STREET CORP	0.19%	71.17K	461.17K	-12.3K	-14.74%
2024-03-31	EDGEWOOD MANAGEMENT LLC	0.14%	50K	324K	0	0
2024-03-31	NORTHERN TRUST CORP	0.13%	48.5K	314.29K	-1.15K	-2.31%
2024-03-31	CUBIST SYSTEMATIC STRATEGIES, LLC	0.11%	40.65K	263.41K	40.65K	+100.00%
2024-03-31	HRT FINANCIAL LP	0.1%	37.63K	243K	37.63K	+100.00%
2024-03-31	ROYCE & ASSOCIATES LP	0.1%	37.32K	241.84K	37.32K	+100.00%
2024-03-31	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.08%	27.7K	179.5K	27.7K	+100.00%
2024-03-31	DENALI ADVISORS LLC	0.07%	26.6K	172.37K	26.6K	+100.00%
2024-03-31	MARSHALL WACE, LLP	0.07%	26.28K	170.32K	26.28K	+100.00%
2024-03-31	MORGAN STANLEY	0.06%	20.58K	133.35K	19.98K	+3,329.83%
2024-03-31	BREVAN HOWARD CAPITAL MANAGEMENT LP	0.05%	18.91K	122.54K	18.91K	+100.00%
2024-03-31	Y-INTERCEPT (HONG KONG) LTD	0.04%	14.15K	91.72K	14.15K	+100.00%
2024-03-31	ALYESKA INVESTMENT GROUP, L.P.	0.64%	235.71K	1.53M	-200K	-45.90%
2024-03-31	EXODUSPOINT CAPITAL MANAGEMENT, LP	0.07%	25.24K	164K	25.24K	+100.00%
2024-03-31	RA CAPITAL MANAGEMENT, L.P.	16.8%	6.14M	39.82M	0	0
2024-03-31	HBK SORCE ADVISORY LLC	0.04%	13.23K	85.71K	-13.23K	-50.00%
2024-03-31	OMERS ADMINISTRATION CORP	0.03%	10.8K	69.98K	10.8K	+100.00%
2024-03-31	FINANCIAL PERSPECTIVES, INC	0.02%	6.75K	43.74K	0	0
2024-03-31	MACQUARIE GROUP LTD	0%	940	6	940	+100.00%
2024-03-31	SIMPLEX TRADING, LLC	0%	202	1K	-5.5K	-96.45%
2024-03-31	WELLS FARGO & COMPANY/MN	0%	194	1.26K	40	+25.97%
2024-03-31	UBS GROUP AG	0%	37	240	-963	-96.30%
2024-03-31	GROUP ONE TRADING, L.P.	0%	0	-	-100	-100.00%
2024-03-31	PRUDENTIAL FINANCIAL INC	0%	0	-	-15.4K	-100.00%
2024-03-31	LIGHTHOUSE INVESTMENT PARTNERS, LLC	0%	0	-	-22.47K	-100.00%
2024-03-31	PFM HEALTH SCIENCES, LP	8.22%	3.01M	19.48M	-461.44K	-13.31%
2024-03-31	DC FUNDS, LP	1.61%	589.1K	3.82M	0	0
2024-03-31	LAURION CAPITAL MANAGEMENT LP	0.55%	201.24K	1.3M	122.02K	+154.04%
2024-03-31	TWO SIGMA INVESTMENTS, LP	0.51%	185.06K	1.2M	38.32K	+26.12%
2024-03-31	BLACKROCK INC.	0.45%	164.79K	1.07M	92.56K	+128.16%
2024-03-31	AMERICAN CENTURY COMPANIES INC	0.07%	24.98K	161.86K	24.98K	+100.00%
2024-03-31	SQUAREPOINT OPS LLC	0.07%	24.59K	159.37K	24.59K	+100.00%
2024-03-31	RAYMOND JAMES FINANCIAL SERVICES ADVISORS, INC.	0.06%	23.66K	153.31K	23.66K	+100.00%
2024-03-31	POINT72 ASIA (SINGAPORE) PTE. LTD.	0.06%	23.26K	150.75K	23.26K	+100.00%
2024-03-31	BALYASNY ASSET MANAGEMENT L.P.	0.06%	23.05K	149.35K	23.05K	+100.00%
2024-03-31	MPM ASSET MANAGEMENT LLC	11.71%	4.28M	27.76M	0	0
2024-03-31	ADAGE CAPITAL PARTNERS GP, L.L.C.	8.21%	3M	19.44M	-33.66K	-1.11%
2024-03-31	BIOIMPACT CAPITAL LLC	6.53%	2.39M	15.47M	0	0
2024-03-31	BANK OF AMERICA CORP /DE/	5.14%	1.88M	12.19M	-214.97K	-10.26%
2024-03-31	JANUS HENDERSON GROUP PLC	4.62%	1.69M	10.92M	1.69M	+100.00%
2024-03-31	RUBRIC CAPITAL MANAGEMENT LP	4.43%	1.62M	10.5M	-314.32K	-16.24%
2024-03-31	VANGUARD GROUP INC	3.03%	1.11M	7.18M	233.91K	+26.78%
2024-03-31	MONASHEE INVESTMENT MANAGEMENT LLC	2.43%	890K	5.77M	890K	+100.00%
2024-03-31	EAGLE HEALTH INVESTMENTS LP	1.91%	700K	4.54M	700K	+100.00%
2024-03-31	SPHERA FUNDS MANAGEMENT LTD.	1.71%	626.81K	4.06M	0	0
2024-03-31	MILLENNIUM MANAGEMENT LLC	1.55%	565.42K	3.66M	121.06K	+27.24%
2024-03-31	GEODE CAPITAL MANAGEMENT, LLC	0.71%	259.68K	1.68M	65.37K	+33.64%
2024-03-31	TWO SIGMA ADVISERS, LP	0.68%	247.6K	1.6M	70.3K	+39.65%
2024-03-31	ACADIAN ASSET MANAGEMENT LLC	0.47%	172.88K	1.12M	94.21K	+119.75%
2024-03-31	GOLDMAN SACHS GROUP INC	0.47%	172.79K	1.12M	172.79K	+100.00%
2024-03-31	JANE STREET GROUP, LLC	0.43%	157.23K	1.02M	142.74K	+985.29%
2023-12-31	MPM ASSET MANAGEMENT LLC	12.02%	4.28M	16.54M	0	0
2023-12-31	PFM HEALTH SCIENCES, LP	9.73%	3.47M	13.39M	909.9K	+35.57%
2023-12-31	ADAGE CAPITAL PARTNERS GP, L.L.C.	8.51%	3.03M	11.71M	2.03M	+203.24%
2023-12-31	BIOIMPACT CAPITAL LLC	6.7%	2.39M	9.22M	0	0
2023-12-31	BANK OF AMERICA CORP /DE/	5.88%	2.1M	8.09M	564.16K	+36.83%
2023-12-31	RUBRIC CAPITAL MANAGEMENT LP	5.43%	1.94M	7.47M	0	0
2023-12-31	VANGUARD GROUP INC	2.45%	873.44K	3.37M	325.79K	+59.49%
2023-12-31	SPHERA FUNDS MANAGEMENT LTD.	1.76%	626.81K	2.42M	0	0
2023-12-31	DC FUNDS, LP	1.65%	589.1K	2.27M	0	0
2023-12-31	MILLENNIUM MANAGEMENT LLC	1.25%	444.36K	1.72M	-22.26K	-4.77%
2023-12-31	ALYESKA INVESTMENT GROUP, L.P.	1.22%	435.71K	1.68M	37.9K	+9.53%
2023-12-31	GEODE CAPITAL MANAGEMENT, LLC	0.55%	194.31K	750.21K	20.06K	+11.51%
2023-12-31	TWO SIGMA ADVISERS, LP	0.5%	177.3K	684.38K	177.3K	+100.00%
2023-12-31	TWO SIGMA INVESTMENTS, LP	0.41%	146.74K	566.4K	146.74K	+100.00%
2023-12-31	RENAISSANCE TECHNOLOGIES LLC	0.3%	107.51K	415K	62.31K	+137.85%
2023-12-31	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.24%	85.09K	328.43K	-10.43K	-10.92%
2023-12-31	STATE STREET CORP	0.23%	83.47K	322.19K	32.7K	+64.41%
2023-12-31	LAURION CAPITAL MANAGEMENT LP	0.22%	79.21K	305.76K	-443.69K	-84.85%
2023-12-31	ACADIAN ASSET MANAGEMENT LLC	0.22%	78.67K	303K	0	0
2023-12-31	BLACKROCK INC.	0.2%	72.23K	278.8K	-4.89K	-6.33%
2023-12-31	DIMENSIONAL FUND ADVISORS LP	0.18%	62.92K	242.88K	4.8K	+8.25%
2023-12-31	EDGEWOOD MANAGEMENT LLC	0.14%	50K	193K	0	0
2023-12-31	NORTHERN TRUST CORP	0.14%	49.65K	191.64K	23.58K	+90.46%
2023-12-31	HBK SORCE ADVISORY LLC	0.07%	26.45K	102.11K	0	0
2023-12-31	LIGHTHOUSE INVESTMENT PARTNERS, LLC	0.06%	22.47K	86.74K	22.47K	+100.00%
2023-12-31	VIRTU FINANCIAL LLC	0.06%	20.38K	79K	20.38K	+100.00%
2023-12-31	PRUDENTIAL FINANCIAL INC	0.04%	15.4K	59.44K	0	0
2023-12-31	JANE STREET GROUP, LLC	0.04%	14.49K	55.92K	14.49K	+100.00%
2023-12-31	CERTUITY, LLC	0.03%	10K	38.6K	10K	+100.00%
2023-12-31		0.02%	6.75K	26.06K	3K	+80.00%
2023-12-31	SIMPLEX TRADING, LLC	0.02%	5.7K	21K	-257	-4.32%
2023-12-31	QUBE RESEARCH & TECHNOLOGIES LTD	0.01%	2.38K	9.2K	2.38K	+119,100.00%
2023-12-31	UBS GROUP AG	0%	1K	3.86K	0	0
2023-12-31	MORGAN STANLEY	0%	600	2.32K	-1.9K	-76.00%
2023-12-31	BAYSTATE WEALTH MANAGEMENT LLC	0%	300	1.16K	300	+100.00%
2023-12-31	WELLS FARGO & COMPANY/MN	0%	154	594	8	+5.48%
2023-12-31	GROUP ONE TRADING, L.P.	0%	100	386K	100	+100.00%
2023-12-31	CITADEL ADVISORS LLC	0%	100	386	100	+100.00%
2023-12-31	JPMORGAN CHASE & CO	0%	83	320	-665	-88.90%
2023-12-31	ROYAL BANK OF CANADA	0%	0	-	-335	-100.00%
2023-12-31	GHP INVESTMENT ADVISORS, INC.	0%	0	-	-80	-100.00%
2023-12-31	TOWER RESEARCH CAPITAL LLC (TRC)	0%	0	-	-2.35K	-100.00%
2023-12-31	SCHONFELD STRATEGIC ADVISORS LLC	0%	0	-	-174.72K	-100.00%
2023-12-31	RA CAPITAL MANAGEMENT, L.P.	17.23%	6.14M	23.72M	0	0

HOWL Insiders

Insiders	Designation	Shares Held
GADICKE ANSBERT	10 percent owner	6.67M
RA CAPITAL MANAGEMENT, L.P.	director	5.7M
EVNIN LUKE		4.28M
MPM BIOVENTURES 2014, L.P.	10 percent owner	3.19M
FLYNN JAMES E	10 percent owner	2.55M
ASANUMA SAKAE		2.07M
TAIHO VENTURES LLC	10 percent owner	2.07M
LAZARUS ALON		2.05M
ARKIN BIO VENTURES 2 L.P.	10 percent owner	2.05M
LONGWOOD FUND III GP, LLC	10 percent owner	1.68M
SPHERA GLOBAL HEALTHCARE MANAGEMENT LP	10 percent owner	788K
LEONARD REID	Chief Operating Officer	122.16K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
2023-01-06	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	2.21	1.85M	4.1M	5.7M
2021-12-15	LEONARD REID	SALE	13.97	135	1.89K	122.16K
2021-06-16	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	13.37	9.29K	124.14K	4.29M
2021-06-15	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	12.95	7.96K	103.06K	4.28M
2021-06-14	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	12.75	306.06K	3.9M	4.27M
2021-05-04	SPHERA GLOBAL HEALTHCARE MANAGEMENT LP	PURCHASE	16.00	475K	7.6M	788K
2021-05-04	MPM BIOVENTURES 2014, L.P.	PURCHASE	16.00	125.76K	2.01M	3.19M
2021-05-04	LAZARUS ALON	PURCHASE	16.00	400K	6.4M	2.05M
2021-05-04	FLYNN JAMES E	PURCHASE	16.00	800K	12.8M	2.55M
2021-05-04	LONGWOOD FUND III GP, LLC	PURCHASE	16.00	250K	4M	1.68M
2021-05-04	GADICKE ANSBERT	PURCHASE	16.00	245K	3.92M	6.67M
2021-05-04	ARKIN BIO VENTURES 2 L.P.	PURCHASE	16.00	400K	6.4M	2.05M
2021-05-04	RA CAPITAL MANAGEMENT, L.P.	PURCHASE	16.00	105.79K	1.69M	443.83K
2021-05-04	EVNIN LUKE	PURCHASE	16.00	150.8K	2.41M	4.28M
2021-05-04	TAIHO VENTURES LLC	PURCHASE	16.00	312.5K	5M	2.07M
2021-05-04	ASANUMA SAKAE	PURCHASE	16.00	312.5K	5M	2.07M
2020-12-23	LAZARUS ALON	PURCHASE	0.00	3.56M	-	3.56M
2020-12-23	EVNIN LUKE	PURCHASE	0.00	7.94M	-	7.94M
2020-12-23	ASANUMA SAKAE	PURCHASE	0.00	3.8M	-	3.8M

HOWL Stock Ownership Breakdown

Werewolf Therapeutics, Inc.

HOWL Stock Outstanding Shares

Market Insider HOWL

Institutional Ownership

HOWL Insiders

Buying/Selling by Insiders

Frequently Asked Questions

HOWL Stock Outstanding Shares

Market Insider HOWL

Institutional Ownership

HOWL Insiders

Buying/Selling by Insiders

Frequently Asked Questions