AVROBIO (AVRO) insider trading activity: Get Latest News Today

AVRO 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 Shares0.4

Short Percent Of Float0.45

Shares Outstanding3.74M

Shares Float2.57M

Shares Short15.13K

Short Ratio0.7

0.45%

Short % of Float

0.4%

Short % of Shares Outstanding

Market Insider AVRO

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

1.65% Percentage of Shares held by All Insiders

61.21% Percentage of Shares held by All Institutions

62.24% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 61.21% of AVRO shares are held by financial institutions. BANK OF AMERICA CORP /DE/ is the top corporate investor, holding 2 shares valued at $2.00. A 0% stake in AVROBIO, Inc. is owned by the company. TOWER RESEARCH CAPITAL LLC (TRC) owns 3.12K shares valued at $3.99K, which translates its holding of 0.01% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Mar 31, 2024	BANK OF AMERICA CORP /DE/	0%	2	2	-28	-93.33%
Mar 31, 2024	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	3.12K	3.99K	-667	-17.64%
Mar 31, 2024	CWM, LLC	0.01%	6.39K	8K	0	0
Mar 31, 2024	TWO SIGMA SECURITIES, LLC	0.02%	10.48K	13.41K	10.48K	+100.00%
Mar 31, 2024	COLONIAL RIVER WEALTH MANAGEMENT, LLC	0.04%	16.18K	20.71K	0	0
Mar 31, 2024	BARCLAYS PLC	0.04%	17.31K	22K	0	0
Mar 31, 2024	XTX TOPCO LTD	0.06%	24.36K	31.18K	-30.59K	-55.67%
Mar 31, 2024	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.08%	34.53K	44.2K	34.53K	+100.00%
Mar 31, 2024	SQUAREPOINT OPS LLC	0.09%	38.69K	49.53K	38.69K	+100.00%
Mar 31, 2024	NORTHERN TRUST CORP	0.15%	67.44K	86.33K	-88	-0.13%
Mar 31, 2024	FNY INVESTMENT ADVISERS, LLC	0.17%	75K	96K	-325K	-81.25%
Mar 31, 2024	WELLS FARGO & COMPANY/MN	0.28%	125.75K	160.96K	-8.7K	-6.47%
Mar 31, 2024	WALLEYE CAPITAL LLC	0.31%	135.64K	173.62K	135.64K	+100.00%
Mar 31, 2024	STATE STREET CORP	0.32%	140.85K	180.29K	0	0
Mar 31, 2024	VAZIRANI ASSET MANAGEMENT LLC	0.34%	150K	192K	-500K	-76.92%
Mar 31, 2024	BOOTHBAY FUND MANAGEMENT, LLC	0.43%	190.64K	244.01K	35.8K	+23.12%
Mar 31, 2024	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.6%	267.39K	342.26K	27.4K	+11.42%
Mar 31, 2024	TWO SIGMA INVESTMENTS, LP	0.61%	270.45K	346.18K	-39.06K	-12.62%
Mar 31, 2024	BNP PARIBAS ARBITRAGE, SNC	0.01%	2.99K	3.83K	0	0
Mar 31, 2024	ALDEBARAN CAPITAL, LLC	1.17%	517.43K	662.31K	62.45K	+13.72%
Mar 31, 2024	BLACKROCK INC.	1.38%	613.43K	785.19K	-1.28K	-0.21%
Mar 31, 2024	AFFINITY ASSET ADVISORS, LLC	1.58%	700K	896K	200K	+40.00%
Mar 31, 2024	RENAISSANCE TECHNOLOGIES LLC	2%	888.17K	1.14M	129.22K	+17.03%
Mar 31, 2024	AISLING CAPITAL MANAGEMENT LP	2.28%	1.01M	1.29M	0	0
Mar 31, 2024	ACADIAN ASSET MANAGEMENT LLC	2.79%	1.24M	1.58M	-217.53K	-14.96%
Mar 31, 2024	VANGUARD GROUP INC	4.24%	1.88M	2.41M	279.4K	+17.44%
Mar 31, 2024	VERITION FUND MANAGEMENT LLC	4.35%	1.93M	2.47M	1.93M	+100.00%
Mar 31, 2024	BML CAPITAL MANAGEMENT, LLC	9.03%	4M	5.12M	0	0
Mar 31, 2024	ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC	10.25%	4.54M	5.81M	0	0
Mar 31, 2024	ADVISOR GROUP HOLDINGS, INC.	0.01%	4K	5.12K	-4K	-50.00%
Mar 31, 2024	BBR PARTNERS, LLC	0.14%	60K	76.8K	0	0
Mar 31, 2024	EXOME ASSET MANAGEMENT LLC	0.14%	61.14K	78.25K	61.14K	+100.00%
Mar 31, 2024	MORGAN STANLEY	0.36%	159.71K	204.43K	-468.55K	-74.58%
Mar 31, 2024	TWO SIGMA ADVISERS, LP	0.67%	296.3K	379.26K	31.2K	+11.77%
Mar 31, 2024	GEODE CAPITAL MANAGEMENT, LLC	0.84%	372.44K	476.85K	5.92K	+1.62%
Mar 31, 2024	PROSIGHT MANAGEMENT, LP	1.28%	566.52K	725.14K	566.52K	+100.00%
Mar 31, 2024	ROYAL BANK OF CANADA	0%	1.89K	2K	0	0
Mar 31, 2024	IKARIAN CAPITAL, LLC	1.7%	754.06K	965.2K	35.8K	+4.98%
Mar 31, 2024	TANG CAPITAL MANAGEMENT LLC	1.92%	852.8K	1.09M	852.8K	+100.00%
Mar 31, 2024	NEWTYN MANAGEMENT, LLC	2.52%	1.12M	1.43M	-1.62M	-59.08%
Mar 31, 2024	FMR LLC	4.55%	2.02M	25M	2.02M	+100.00%
Mar 31, 2024	ADAR1 CAPITAL MANAGEMENT, LLC	8.92%	3.95M	5.06M	3.9M	+7,786.53%
Mar 31, 2024	JPMORGAN CHASE & CO	0%	282	361	0	0
Mar 31, 2024	CITADEL ADVISORS LLC	0%	100	128	-600	-85.71%
Mar 31, 2024	GROUP ONE TRADING, L.P.	0%	13	17	0	0
Mar 31, 2024	GABELLI FUNDS LLC	0%	0	-	-343.42K	-100.00%
Mar 31, 2024	BANK OF NEW YORK MELLON CORP	0%	0	-	-16.79K	-100.00%
Mar 31, 2024	JBF CAPITAL, INC.	0%	0	-	-160K	-100.00%
Mar 31, 2024	RHUMBLINE ADVISERS	0%	1.21K	1.55K	0	0
Mar 31, 2024	NATIONAL BANK OF CANADA /FI/	0%	380	463	0	0
Mar 31, 2024	GABELLI & CO INVESTMENT ADVISERS, INC.	0%	0	-	-353K	-100.00%
Dec 31, 2023	RHUMBLINE ADVISERS	0%	1.21K	1.64K	0	0
Dec 31, 2023	AFFINITY ASSET ADVISORS, LLC	1.12%	500K	680K	0	0
Dec 31, 2023	ALDEBARAN CAPITAL, LLC	1.02%	454.99K	618.78K	-15.14K	-3.22%
Dec 31, 2023	ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC	10.2%	4.54M	6.18M	0	0
Dec 31, 2023	BML CAPITAL MANAGEMENT, LLC	8.99%	4M	5.44M	0	0
Dec 31, 2023	NEWTYN MANAGEMENT, LLC	6.14%	2.73M	3.72M	734.18K	+36.71%
Dec 31, 2023	VANGUARD GROUP INC	3.6%	1.6M	2.18M	27K	+1.71%
Dec 31, 2023	ACADIAN ASSET MANAGEMENT LLC	3.27%	1.45M	1.98M	-270.83K	-15.70%
Dec 31, 2023	AISLING CAPITAL MANAGEMENT LP	2.27%	1.01M	1.37M	0	0
Dec 31, 2023	RENAISSANCE TECHNOLOGIES LLC	1.7%	758.94K	1.03M	240.48K	+46.38%
Dec 31, 2023	IKARIAN CAPITAL, LLC	1.61%	718.26K	976.83K	0	0
Dec 31, 2023	VAZIRANI ASSET MANAGEMENT LLC	1.46%	650K	884K	181.73K	+38.81%
Dec 31, 2023	MORGAN STANLEY	1.41%	628.26K	854.43K	107.06K	+20.54%
Dec 31, 2023	BLACKROCK INC.	1.38%	614.71K	836K	-7.85K	-1.26%
Dec 31, 2023	CITADEL ADVISORS LLC	0%	700	952	0	0
Dec 31, 2023	FNY INVESTMENT ADVISERS, LLC	0.9%	400K	544K	175K	+77.78%
Dec 31, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.82%	366.52K	498.59K	13.4K	+3.79%
Dec 31, 2023	GABELLI & CO INVESTMENT ADVISERS, INC.	0.79%	353K	480.08K	353K	+100.00%
Dec 31, 2023	GABELLI FUNDS LLC	0.77%	343.42K	467.05K	343.42K	+100.00%
Dec 31, 2023	WESTERN STANDARD LLC	0.7%	312.91K	425.56K	2.55K	+0.82%
Dec 31, 2023	TWO SIGMA INVESTMENTS, LP	0.7%	309.52K	420.94K	-18.4K	-5.61%
Dec 31, 2023	TWO SIGMA ADVISERS, LP	0.6%	265.1K	360.54K	28.5K	+12.05%
Dec 31, 2023	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.54%	239.99K	326.38K	92.59K	+62.81%
Dec 31, 2023	JBF CAPITAL, INC.	0.36%	160K	217.6K	0	0
Dec 31, 2023	BOOTHBAY FUND MANAGEMENT, LLC	0.35%	154.83K	210.57K	0	0
Dec 31, 2023	STATE STREET CORP	0.32%	140.85K	191.56K	0	0
Dec 31, 2023	WELLS FARGO & COMPANY/MN	0.3%	134.45K	182.86K	-14.15K	-9.52%
Dec 31, 2023	NORTHERN TRUST CORP	0.15%	67.53K	91.84K	-6.92K	-9.30%
Dec 31, 2023	BBR PARTNERS, LLC	0.13%	60K	81.6K	0	0
Dec 31, 2023	XTX TOPCO LTD	0.12%	54.95K	74.74K	25.85K	+88.80%
Dec 31, 2023		0.11%	50.15K	68.2K	50.15K	+100.00%
Dec 31, 2023	BARCLAYS PLC	0.04%	17.31K	24K	0	0
Dec 31, 2023	BANK OF NEW YORK MELLON CORP	0.04%	16.79K	22.83K	0	0
Dec 31, 2023	COLONIAL RIVER WEALTH MANAGEMENT, LLC	0.04%	16.18K	22K	-498	-2.99%
Dec 31, 2023	VIRTU FINANCIAL LLC	0.02%	10.05K	14K	-25.8K	-71.97%
Dec 31, 2023	ADVISOR GROUP HOLDINGS, INC.	0.02%	8K	10.88K	5K	+166.67%
Dec 31, 2023	CWM, LLC	0.01%	6.39K	9K	0	0
Dec 31, 2023	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	3.78K	5.14K	-1.42K	-27.24%
Dec 31, 2023	BNP PARIBAS ARBITRAGE, SNC	0.01%	2.99K	4.07K	0	0
Dec 31, 2023	ROYAL BANK OF CANADA	0%	1.89K	3K	-86	-4.35%
Dec 31, 2023	NATIONAL BANK OF CANADA /FI/	0%	380	543	0	0
Dec 31, 2023	JPMORGAN CHASE & CO	0%	282	384	-83.54K	-99.66%
Dec 31, 2023	BANK OF AMERICA CORP /DE/	0%	30	40	28	+1,400.00%
Dec 31, 2023	GROUP ONE TRADING, L.P.	0%	13	18K	13	+100.00%
Dec 31, 2023	CITIGROUP INC	0%	0	-	-215	-100.00%
Dec 31, 2023	TANG CAPITAL MANAGEMENT LLC	0%	0	-	-3.51M	-100.00%
Dec 31, 2023	MILLENNIUM MANAGEMENT LLC	0%	0	-	-35.87K	-100.00%
Dec 31, 2023	PRIVATE ADVISOR GROUP, LLC	0%	0	-	-21.41K	-100.00%
Sep 30, 2023	C2C WEALTH MANAGEMENT, LLC	0%	0	-	-10K	-100.00%
Sep 30, 2023	PRIVIUM FUND MANAGEMENT (UK) LTD	0%	0	-	-87.77K	-100.00%
Sep 30, 2023	PRIVIUM FUND MANAGEMENT B.V.	0%	0	-	-87.77K	-100.00%
Sep 30, 2023	SVB WEALTH LLC	0%	0	-	-284.37K	-100.00%
Sep 30, 2023	GMT CAPITAL CORP	0%	0	-	-2.41M	-100.00%
Sep 30, 2023	DEUTSCHE BANK AG\	0%	0	-	-35K	-100.00%
Sep 30, 2023	HSBC HOLDINGS PLC	0%	0	-	-16.56K	-100.00%
Sep 30, 2023	CITIGROUP INC	0%	215	-	215	+100.00%
Sep 30, 2023	NATIONAL BANK OF CANADA /FI/	0%	380	-	0	0
Sep 30, 2023	RHUMBLINE ADVISERS	0%	1.21K	-	0	0
Sep 30, 2023	ROYAL BANK OF CANADA	0%	1.98K	-	-346	-14.88%
Sep 30, 2023	BNP PARIBAS ARBITRAGE, SNC	0.01%	2.99K	-	0	0
Sep 30, 2023	ADVISOR GROUP HOLDINGS, INC.	0.01%	3K	-	3K	+100.00%
Sep 30, 2023	IFP ADVISORS, INC	0.01%	3.5K	-	3.5K	+100.00%
Sep 30, 2023	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	5.2K	-	-6.76K	-56.52%
Sep 30, 2023	CWM, LLC	0.01%	6.39K	-	0	0
Sep 30, 2023	UBS GROUP AG	0.02%	9.88K	-	9.81K	+15,093.85%
Sep 30, 2023	COLONIAL RIVER WEALTH MANAGEMENT, LLC	0.04%	16.68K	-	-265	-1.56%
Sep 30, 2023	BANK OF NEW YORK MELLON CORP	0.04%	16.79K	-	0	0
Sep 30, 2023	BARCLAYS PLC	0.04%	17.31K	-	-4.87K	-21.97%
Sep 30, 2023	PRIVATE ADVISOR GROUP, LLC	0.05%	21.41K	-	21.41K	+100.00%
Sep 30, 2023	XTX TOPCO LTD	0.07%	29.11K	-	29.11K	+100.00%
Sep 30, 2023	VIRTU FINANCIAL LLC	0.08%	35.85K	-	13.3K	+58.97%
Sep 30, 2023	BBR PARTNERS, LLC	0.14%	60K	-	60K	+100.00%
Sep 30, 2023	NORTHERN TRUST CORP	0.17%	74.45K	-	-828	-1.10%
Sep 30, 2023	WELLS FARGO & COMPANY/MN	0.34%	148.61K	-	-18.49K	-11.06%
Sep 30, 2023	JBF CAPITAL, INC.	0.36%	160K	-	160K	+100.00%
Sep 30, 2023	FNY INVESTMENT ADVISERS, LLC	0.51%	225K	-	225K	+100.00%
Sep 30, 2023	TWO SIGMA ADVISERS, LP	0.54%	236.6K	-	-20.6K	-8.01%
Sep 30, 2023	TWO SIGMA INVESTMENTS, LP	0.74%	327.92K	-	42.05K	+14.71%
Sep 30, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.8%	353.12K	-	9.38K	+2.73%
Sep 30, 2023	VAZIRANI ASSET MANAGEMENT LLC	1.06%	468.27K	-	468.27K	+100.00%
Sep 30, 2023	ALDEBARAN CAPITAL, LLC	1.07%	470.13K	-	470.13K	+100.00%
Sep 30, 2023	MORGAN STANLEY	1.18%	521.2K	-	-528.07K	-50.33%
Sep 30, 2023	TERRAPIN ASSET MANAGEMENT, LLC	1.27%	558.79K	-	558.79K	+100.00%
Sep 30, 2023	BLACKROCK INC.	1.41%	622.55K	-	-10.48K	-1.66%
Sep 30, 2023	IKARIAN CAPITAL, LLC	1.63%	718.26K	-	584.11K	+435.43%
Sep 30, 2023	AISLING CAPITAL MANAGEMENT LP	2.29%	1.01M	-	0	0
Sep 30, 2023	ACADIAN ASSET MANAGEMENT LLC	3.91%	1.73M	-	-45.06K	-2.55%
Sep 30, 2023	NEWTYN MANAGEMENT, LLC	4.53%	2M	-	2M	+100.00%
Sep 30, 2023	BML CAPITAL MANAGEMENT, LLC	9.07%	4M	-	3.75M	+1,461.45%
Sep 30, 2023	ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC	10.29%	4.54M	-	0	0

AVRO Insiders

Among the AVRO insiders holding of 1.65% of the stake in company, ATLAS VENTURE FUND X, L.P., 10 percent owner, holds the largest shares of 5.57M. BOOTH BRUCE, director, is the second largest AVRO insider with ownership of 5.57M shares. LEONARD BRADEN MICHAEL, 10 percent owner, stands third with possession of 4.77M shares of that stake.

Insiders	Designation	Shares Held
ATLAS VENTURE FUND X, L.P.	10 percent owner	5.57M
BOOTH BRUCE	director	5.57M
LEONARD BRADEN MICHAEL	10 percent owner	4.77M
MACKAY GEOFFREY	See Remarks	345.12K
PAIGE CHRISTOPHER	director	252.51K
VICKERS PHILIP J.	director	4.8K
DONENBERG PHILLIP B.	director	2K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
May 14, 2024	LEONARD BRADEN MICHAEL	PURCHASE	1.30	296.88K	385.95K	4.77M
May 13, 2024	LEONARD BRADEN MICHAEL	PURCHASE	1.24	253.7K	313.32K	4.26M
Jul 07, 2021	VICKERS PHILIP J.	PURCHASE	8.35	4.8K	40.08K	4.8K
Feb 17, 2021	DONENBERG PHILLIP B.	PURCHASE	11.71	2K	23.42K	2K
Feb 12, 2020	MACKAY GEOFFREY	SALE	29.07	1.4K	40.69K	345.12K
Feb 11, 2020	MACKAY GEOFFREY	SALE	28.10	18.4K	517.1K	346.52K
Feb 11, 2020	PAIGE CHRISTOPHER	SALE	28.00	15K	420K	252.51K
Jan 28, 2020	PAIGE CHRISTOPHER	SALE	23.00	10K	230K	267.51K
Jul 19, 2019	ATLAS VENTURE FUND X, L.P.	PURCHASE	18.50	810.81K	15M	5.57M
Jul 19, 2019	BOOTH BRUCE	PURCHASE	18.50	810.81K	15M	5.57M
Apr 08, 2019	MACKAY GEOFFREY	SALE	27.07	698	18.89K	409.52K
Apr 08, 2019	PAIGE CHRISTOPHER	SALE	26.92	100	2.69K	277.51K
Apr 05, 2019	PAIGE CHRISTOPHER	SALE	26.21	867	22.72K	280.01K
Apr 05, 2019	MACKAY GEOFFREY	SALE	27.26	13.3K	362.62K	410.22K

Frequently Asked Questions

AVRO Stock Outstanding Shares

ShortableNo

OptionableNo

Short Percent Of Outstanding Shares0.4

Short Percent Of Float0.45

Shares Outstanding3.74M

Shares Float2.57M

Shares Short15.13K

Short Ratio0.7

0.45%

Short % of Float

0.4%

Short % of Shares Outstanding

Market Insider AVRO

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

1.65% Percentage of Shares held by All Insiders

61.21% Percentage of Shares held by All Institutions

62.24% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Mar 31, 2024	BANK OF AMERICA CORP /DE/	0%	2	2	-28	-93.33%
Mar 31, 2024	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	3.12K	3.99K	-667	-17.64%
Mar 31, 2024	CWM, LLC	0.01%	6.39K	8K	0	0
Mar 31, 2024	TWO SIGMA SECURITIES, LLC	0.02%	10.48K	13.41K	10.48K	+100.00%
Mar 31, 2024	COLONIAL RIVER WEALTH MANAGEMENT, LLC	0.04%	16.18K	20.71K	0	0
Mar 31, 2024	BARCLAYS PLC	0.04%	17.31K	22K	0	0
Mar 31, 2024	XTX TOPCO LTD	0.06%	24.36K	31.18K	-30.59K	-55.67%
Mar 31, 2024	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.08%	34.53K	44.2K	34.53K	+100.00%
Mar 31, 2024	SQUAREPOINT OPS LLC	0.09%	38.69K	49.53K	38.69K	+100.00%
Mar 31, 2024	NORTHERN TRUST CORP	0.15%	67.44K	86.33K	-88	-0.13%
Mar 31, 2024	FNY INVESTMENT ADVISERS, LLC	0.17%	75K	96K	-325K	-81.25%
Mar 31, 2024	WELLS FARGO & COMPANY/MN	0.28%	125.75K	160.96K	-8.7K	-6.47%
Mar 31, 2024	WALLEYE CAPITAL LLC	0.31%	135.64K	173.62K	135.64K	+100.00%
Mar 31, 2024	STATE STREET CORP	0.32%	140.85K	180.29K	0	0
Mar 31, 2024	VAZIRANI ASSET MANAGEMENT LLC	0.34%	150K	192K	-500K	-76.92%
Mar 31, 2024	BOOTHBAY FUND MANAGEMENT, LLC	0.43%	190.64K	244.01K	35.8K	+23.12%
Mar 31, 2024	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.6%	267.39K	342.26K	27.4K	+11.42%
Mar 31, 2024	TWO SIGMA INVESTMENTS, LP	0.61%	270.45K	346.18K	-39.06K	-12.62%
Mar 31, 2024	BNP PARIBAS ARBITRAGE, SNC	0.01%	2.99K	3.83K	0	0
Mar 31, 2024	ALDEBARAN CAPITAL, LLC	1.17%	517.43K	662.31K	62.45K	+13.72%
Mar 31, 2024	BLACKROCK INC.	1.38%	613.43K	785.19K	-1.28K	-0.21%
Mar 31, 2024	AFFINITY ASSET ADVISORS, LLC	1.58%	700K	896K	200K	+40.00%
Mar 31, 2024	RENAISSANCE TECHNOLOGIES LLC	2%	888.17K	1.14M	129.22K	+17.03%
Mar 31, 2024	AISLING CAPITAL MANAGEMENT LP	2.28%	1.01M	1.29M	0	0
Mar 31, 2024	ACADIAN ASSET MANAGEMENT LLC	2.79%	1.24M	1.58M	-217.53K	-14.96%
Mar 31, 2024	VANGUARD GROUP INC	4.24%	1.88M	2.41M	279.4K	+17.44%
Mar 31, 2024	VERITION FUND MANAGEMENT LLC	4.35%	1.93M	2.47M	1.93M	+100.00%
Mar 31, 2024	BML CAPITAL MANAGEMENT, LLC	9.03%	4M	5.12M	0	0
Mar 31, 2024	ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC	10.25%	4.54M	5.81M	0	0
Mar 31, 2024	ADVISOR GROUP HOLDINGS, INC.	0.01%	4K	5.12K	-4K	-50.00%
Mar 31, 2024	BBR PARTNERS, LLC	0.14%	60K	76.8K	0	0
Mar 31, 2024	EXOME ASSET MANAGEMENT LLC	0.14%	61.14K	78.25K	61.14K	+100.00%
Mar 31, 2024	MORGAN STANLEY	0.36%	159.71K	204.43K	-468.55K	-74.58%
Mar 31, 2024	TWO SIGMA ADVISERS, LP	0.67%	296.3K	379.26K	31.2K	+11.77%
Mar 31, 2024	GEODE CAPITAL MANAGEMENT, LLC	0.84%	372.44K	476.85K	5.92K	+1.62%
Mar 31, 2024	PROSIGHT MANAGEMENT, LP	1.28%	566.52K	725.14K	566.52K	+100.00%
Mar 31, 2024	ROYAL BANK OF CANADA	0%	1.89K	2K	0	0
Mar 31, 2024	IKARIAN CAPITAL, LLC	1.7%	754.06K	965.2K	35.8K	+4.98%
Mar 31, 2024	TANG CAPITAL MANAGEMENT LLC	1.92%	852.8K	1.09M	852.8K	+100.00%
Mar 31, 2024	NEWTYN MANAGEMENT, LLC	2.52%	1.12M	1.43M	-1.62M	-59.08%
Mar 31, 2024	FMR LLC	4.55%	2.02M	25M	2.02M	+100.00%
Mar 31, 2024	ADAR1 CAPITAL MANAGEMENT, LLC	8.92%	3.95M	5.06M	3.9M	+7,786.53%
Mar 31, 2024	JPMORGAN CHASE & CO	0%	282	361	0	0
Mar 31, 2024	CITADEL ADVISORS LLC	0%	100	128	-600	-85.71%
Mar 31, 2024	GROUP ONE TRADING, L.P.	0%	13	17	0	0
Mar 31, 2024	GABELLI FUNDS LLC	0%	0	-	-343.42K	-100.00%
Mar 31, 2024	BANK OF NEW YORK MELLON CORP	0%	0	-	-16.79K	-100.00%
Mar 31, 2024	JBF CAPITAL, INC.	0%	0	-	-160K	-100.00%
Mar 31, 2024	RHUMBLINE ADVISERS	0%	1.21K	1.55K	0	0
Mar 31, 2024	NATIONAL BANK OF CANADA /FI/	0%	380	463	0	0
Mar 31, 2024	GABELLI & CO INVESTMENT ADVISERS, INC.	0%	0	-	-353K	-100.00%
Dec 31, 2023	RHUMBLINE ADVISERS	0%	1.21K	1.64K	0	0
Dec 31, 2023	AFFINITY ASSET ADVISORS, LLC	1.12%	500K	680K	0	0
Dec 31, 2023	ALDEBARAN CAPITAL, LLC	1.02%	454.99K	618.78K	-15.14K	-3.22%
Dec 31, 2023	ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC	10.2%	4.54M	6.18M	0	0
Dec 31, 2023	BML CAPITAL MANAGEMENT, LLC	8.99%	4M	5.44M	0	0
Dec 31, 2023	NEWTYN MANAGEMENT, LLC	6.14%	2.73M	3.72M	734.18K	+36.71%
Dec 31, 2023	VANGUARD GROUP INC	3.6%	1.6M	2.18M	27K	+1.71%
Dec 31, 2023	ACADIAN ASSET MANAGEMENT LLC	3.27%	1.45M	1.98M	-270.83K	-15.70%
Dec 31, 2023	AISLING CAPITAL MANAGEMENT LP	2.27%	1.01M	1.37M	0	0
Dec 31, 2023	RENAISSANCE TECHNOLOGIES LLC	1.7%	758.94K	1.03M	240.48K	+46.38%
Dec 31, 2023	IKARIAN CAPITAL, LLC	1.61%	718.26K	976.83K	0	0
Dec 31, 2023	VAZIRANI ASSET MANAGEMENT LLC	1.46%	650K	884K	181.73K	+38.81%
Dec 31, 2023	MORGAN STANLEY	1.41%	628.26K	854.43K	107.06K	+20.54%
Dec 31, 2023	BLACKROCK INC.	1.38%	614.71K	836K	-7.85K	-1.26%
Dec 31, 2023	CITADEL ADVISORS LLC	0%	700	952	0	0
Dec 31, 2023	FNY INVESTMENT ADVISERS, LLC	0.9%	400K	544K	175K	+77.78%
Dec 31, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.82%	366.52K	498.59K	13.4K	+3.79%
Dec 31, 2023	GABELLI & CO INVESTMENT ADVISERS, INC.	0.79%	353K	480.08K	353K	+100.00%
Dec 31, 2023	GABELLI FUNDS LLC	0.77%	343.42K	467.05K	343.42K	+100.00%
Dec 31, 2023	WESTERN STANDARD LLC	0.7%	312.91K	425.56K	2.55K	+0.82%
Dec 31, 2023	TWO SIGMA INVESTMENTS, LP	0.7%	309.52K	420.94K	-18.4K	-5.61%
Dec 31, 2023	TWO SIGMA ADVISERS, LP	0.6%	265.1K	360.54K	28.5K	+12.05%
Dec 31, 2023	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.54%	239.99K	326.38K	92.59K	+62.81%
Dec 31, 2023	JBF CAPITAL, INC.	0.36%	160K	217.6K	0	0
Dec 31, 2023	BOOTHBAY FUND MANAGEMENT, LLC	0.35%	154.83K	210.57K	0	0
Dec 31, 2023	STATE STREET CORP	0.32%	140.85K	191.56K	0	0
Dec 31, 2023	WELLS FARGO & COMPANY/MN	0.3%	134.45K	182.86K	-14.15K	-9.52%
Dec 31, 2023	NORTHERN TRUST CORP	0.15%	67.53K	91.84K	-6.92K	-9.30%
Dec 31, 2023	BBR PARTNERS, LLC	0.13%	60K	81.6K	0	0
Dec 31, 2023	XTX TOPCO LTD	0.12%	54.95K	74.74K	25.85K	+88.80%
Dec 31, 2023		0.11%	50.15K	68.2K	50.15K	+100.00%
Dec 31, 2023	BARCLAYS PLC	0.04%	17.31K	24K	0	0
Dec 31, 2023	BANK OF NEW YORK MELLON CORP	0.04%	16.79K	22.83K	0	0
Dec 31, 2023	COLONIAL RIVER WEALTH MANAGEMENT, LLC	0.04%	16.18K	22K	-498	-2.99%
Dec 31, 2023	VIRTU FINANCIAL LLC	0.02%	10.05K	14K	-25.8K	-71.97%
Dec 31, 2023	ADVISOR GROUP HOLDINGS, INC.	0.02%	8K	10.88K	5K	+166.67%
Dec 31, 2023	CWM, LLC	0.01%	6.39K	9K	0	0
Dec 31, 2023	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	3.78K	5.14K	-1.42K	-27.24%
Dec 31, 2023	BNP PARIBAS ARBITRAGE, SNC	0.01%	2.99K	4.07K	0	0
Dec 31, 2023	ROYAL BANK OF CANADA	0%	1.89K	3K	-86	-4.35%
Dec 31, 2023	NATIONAL BANK OF CANADA /FI/	0%	380	543	0	0
Dec 31, 2023	JPMORGAN CHASE & CO	0%	282	384	-83.54K	-99.66%
Dec 31, 2023	BANK OF AMERICA CORP /DE/	0%	30	40	28	+1,400.00%
Dec 31, 2023	GROUP ONE TRADING, L.P.	0%	13	18K	13	+100.00%
Dec 31, 2023	CITIGROUP INC	0%	0	-	-215	-100.00%
Dec 31, 2023	TANG CAPITAL MANAGEMENT LLC	0%	0	-	-3.51M	-100.00%
Dec 31, 2023	MILLENNIUM MANAGEMENT LLC	0%	0	-	-35.87K	-100.00%
Dec 31, 2023	PRIVATE ADVISOR GROUP, LLC	0%	0	-	-21.41K	-100.00%
Sep 30, 2023	C2C WEALTH MANAGEMENT, LLC	0%	0	-	-10K	-100.00%
Sep 30, 2023	PRIVIUM FUND MANAGEMENT (UK) LTD	0%	0	-	-87.77K	-100.00%
Sep 30, 2023	PRIVIUM FUND MANAGEMENT B.V.	0%	0	-	-87.77K	-100.00%
Sep 30, 2023	SVB WEALTH LLC	0%	0	-	-284.37K	-100.00%
Sep 30, 2023	GMT CAPITAL CORP	0%	0	-	-2.41M	-100.00%
Sep 30, 2023	DEUTSCHE BANK AG\	0%	0	-	-35K	-100.00%
Sep 30, 2023	HSBC HOLDINGS PLC	0%	0	-	-16.56K	-100.00%
Sep 30, 2023	CITIGROUP INC	0%	215	-	215	+100.00%
Sep 30, 2023	NATIONAL BANK OF CANADA /FI/	0%	380	-	0	0
Sep 30, 2023	RHUMBLINE ADVISERS	0%	1.21K	-	0	0
Sep 30, 2023	ROYAL BANK OF CANADA	0%	1.98K	-	-346	-14.88%
Sep 30, 2023	BNP PARIBAS ARBITRAGE, SNC	0.01%	2.99K	-	0	0
Sep 30, 2023	ADVISOR GROUP HOLDINGS, INC.	0.01%	3K	-	3K	+100.00%
Sep 30, 2023	IFP ADVISORS, INC	0.01%	3.5K	-	3.5K	+100.00%
Sep 30, 2023	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	5.2K	-	-6.76K	-56.52%
Sep 30, 2023	CWM, LLC	0.01%	6.39K	-	0	0
Sep 30, 2023	UBS GROUP AG	0.02%	9.88K	-	9.81K	+15,093.85%
Sep 30, 2023	COLONIAL RIVER WEALTH MANAGEMENT, LLC	0.04%	16.68K	-	-265	-1.56%
Sep 30, 2023	BANK OF NEW YORK MELLON CORP	0.04%	16.79K	-	0	0
Sep 30, 2023	BARCLAYS PLC	0.04%	17.31K	-	-4.87K	-21.97%
Sep 30, 2023	PRIVATE ADVISOR GROUP, LLC	0.05%	21.41K	-	21.41K	+100.00%
Sep 30, 2023	XTX TOPCO LTD	0.07%	29.11K	-	29.11K	+100.00%
Sep 30, 2023	VIRTU FINANCIAL LLC	0.08%	35.85K	-	13.3K	+58.97%
Sep 30, 2023	BBR PARTNERS, LLC	0.14%	60K	-	60K	+100.00%
Sep 30, 2023	NORTHERN TRUST CORP	0.17%	74.45K	-	-828	-1.10%
Sep 30, 2023	WELLS FARGO & COMPANY/MN	0.34%	148.61K	-	-18.49K	-11.06%
Sep 30, 2023	JBF CAPITAL, INC.	0.36%	160K	-	160K	+100.00%
Sep 30, 2023	FNY INVESTMENT ADVISERS, LLC	0.51%	225K	-	225K	+100.00%
Sep 30, 2023	TWO SIGMA ADVISERS, LP	0.54%	236.6K	-	-20.6K	-8.01%
Sep 30, 2023	TWO SIGMA INVESTMENTS, LP	0.74%	327.92K	-	42.05K	+14.71%
Sep 30, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.8%	353.12K	-	9.38K	+2.73%
Sep 30, 2023	VAZIRANI ASSET MANAGEMENT LLC	1.06%	468.27K	-	468.27K	+100.00%
Sep 30, 2023	ALDEBARAN CAPITAL, LLC	1.07%	470.13K	-	470.13K	+100.00%
Sep 30, 2023	MORGAN STANLEY	1.18%	521.2K	-	-528.07K	-50.33%
Sep 30, 2023	TERRAPIN ASSET MANAGEMENT, LLC	1.27%	558.79K	-	558.79K	+100.00%
Sep 30, 2023	BLACKROCK INC.	1.41%	622.55K	-	-10.48K	-1.66%
Sep 30, 2023	IKARIAN CAPITAL, LLC	1.63%	718.26K	-	584.11K	+435.43%
Sep 30, 2023	AISLING CAPITAL MANAGEMENT LP	2.29%	1.01M	-	0	0
Sep 30, 2023	ACADIAN ASSET MANAGEMENT LLC	3.91%	1.73M	-	-45.06K	-2.55%
Sep 30, 2023	NEWTYN MANAGEMENT, LLC	4.53%	2M	-	2M	+100.00%
Sep 30, 2023	BML CAPITAL MANAGEMENT, LLC	9.07%	4M	-	3.75M	+1,461.45%
Sep 30, 2023	ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC	10.29%	4.54M	-	0	0

AVRO Insiders

Insiders	Designation	Shares Held
ATLAS VENTURE FUND X, L.P.	10 percent owner	5.57M
BOOTH BRUCE	director	5.57M
LEONARD BRADEN MICHAEL	10 percent owner	4.77M
MACKAY GEOFFREY	See Remarks	345.12K
PAIGE CHRISTOPHER	director	252.51K
VICKERS PHILIP J.	director	4.8K
DONENBERG PHILLIP B.	director	2K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
May 14, 2024	LEONARD BRADEN MICHAEL	PURCHASE	1.30	296.88K	385.95K	4.77M
May 13, 2024	LEONARD BRADEN MICHAEL	PURCHASE	1.24	253.7K	313.32K	4.26M
Jul 07, 2021	VICKERS PHILIP J.	PURCHASE	8.35	4.8K	40.08K	4.8K
Feb 17, 2021	DONENBERG PHILLIP B.	PURCHASE	11.71	2K	23.42K	2K
Feb 12, 2020	MACKAY GEOFFREY	SALE	29.07	1.4K	40.69K	345.12K
Feb 11, 2020	MACKAY GEOFFREY	SALE	28.10	18.4K	517.1K	346.52K
Feb 11, 2020	PAIGE CHRISTOPHER	SALE	28.00	15K	420K	252.51K
Jan 28, 2020	PAIGE CHRISTOPHER	SALE	23.00	10K	230K	267.51K
Jul 19, 2019	ATLAS VENTURE FUND X, L.P.	PURCHASE	18.50	810.81K	15M	5.57M
Jul 19, 2019	BOOTH BRUCE	PURCHASE	18.50	810.81K	15M	5.57M
Apr 08, 2019	MACKAY GEOFFREY	SALE	27.07	698	18.89K	409.52K
Apr 08, 2019	PAIGE CHRISTOPHER	SALE	26.92	100	2.69K	277.51K
Apr 05, 2019	PAIGE CHRISTOPHER	SALE	26.21	867	22.72K	280.01K
Apr 05, 2019	MACKAY GEOFFREY	SALE	27.26	13.3K	362.62K	410.22K

AVRO Stock Ownership Breakdown

AVROBIO, Inc.

AVRO Stock Outstanding Shares

Market Insider AVRO

Institutional Ownership

AVRO Insiders

Buying/Selling by Insiders

Frequently Asked Questions

AVRO Stock Outstanding Shares

Market Insider AVRO

Institutional Ownership

AVRO Insiders

Buying/Selling by Insiders

Frequently Asked Questions