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SC Filed 2021-03-19 Event — SEC 0001104659-21-039060 →

BAKER BROS. ADVISORS LP Aeglea BioTherapeutics, Inc. SYRE

Stake: Shares:

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
55 transactions
0 buys · 44 sales · 9 awards/exercises
Issuer Cluster
4 13D/G filings on this issuer
3 other filings besides this one
Filer Track Record
65 filings by this filer
64 other filings in the data moat
Short Interest · settle 2026-08-31
DTC 9.69
11,859,975 shares short · +0.9% vs prior

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-09-02 King-Jones Heidy officer Option exercise 400 $14.50 $6K
2026-09-02 King-Jones Heidy officer Sale 400 $90.00 $36K
2026-09-02 Burrows Scott L officer Sale 18,232 $89.35 $1.63M
2026-09-01 King-Jones Heidy officer Option exercise 27,999 $14.50 $406K
2026-09-01 King-Jones Heidy officer Sale 4,845 $86.40 $419K
2026-09-01 King-Jones Heidy officer Sale 16,548 $87.20 $1.44M
2026-09-01 King-Jones Heidy officer Sale 6,206 $88.17 $547K
2026-09-01 King-Jones Heidy officer Sale 400 $89.38 $36K
2026-09-01 Burrows Scott L officer Option exercise 7,500 $14.50 $109K
2026-09-01 Burrows Scott L officer Sale 900 $86.25 $78K
2026-09-01 Burrows Scott L officer Sale 4,384 $87.11 $382K
2026-09-01 Burrows Scott L officer Sale 2,016 $88.03 $177K
2026-09-01 Burrows Scott L officer Sale 200 $89.04 $18K
2026-09-01 Turtle Cameron director, officer Sale 2,500 $86.36 $216K
2026-09-01 Turtle Cameron director, officer Sale 8,400 $87.15 $732K
2026-09-01 Turtle Cameron director, officer Sale 3,700 $88.06 $326K
2026-09-01 Turtle Cameron director, officer Sale 400 $89.07 $36K
2026-08-07 Albers Jeffrey W. director Option exercise 5,000 $10.39 $52K
2026-08-07 Albers Jeffrey W. director Sale 5,000 $104.47 $522K
2026-08-07 Albers Jeffrey W. director Sale 8,000 $104.38 $835K
2026-08-07 Albers Jeffrey W. director Sale 10,000 $104.68 $1.05M
2026-08-03 Burrows Scott L officer Option exercise 7,500 $14.50 $109K
2026-08-03 Burrows Scott L officer Sale 5,100 $95.21 $486K
2026-08-03 Burrows Scott L officer Sale 2,300 $96.30 $221K
2026-08-03 Burrows Scott L officer Sale 100 $97.10 $10K
Showing 25 of 55

Other 13D/G Filings on Aeglea BioTherapeutics, Inc.

FiledFormFilerStakeShares
2026-06-23 SCHEDULE 13D/A Fairmount Funds Management LLC 8,835,440 view →
2023-12-11 SC Fairmount Funds Management LLC view →
2022-02-10 SC BAKER BROS. ADVISORS LP view →

Other Filings by BAKER BROS. ADVISORS LP

FiledFormIssuerStakeShares
2026-08-11 SCHEDULE 13D/A Replimune Group, Inc. 11.80% 11,075,336 view →
2026-07-16 SCHEDULE 13D/A Celcuity Inc. 9.99% 4,877,963 view →
2026-07-16 SCHEDULE 13G Celcuity Inc. view →
2026-06-15 SCHEDULE 13D/A BeOne Medicines Ltd. BEIGF 8.00% 115,457,154 view →
2026-05-26 SCHEDULE 13D/A Kiniksa Pharmaceuticals International, plc KNSA 7.00% 3,231,181 view →
2026-05-11 SCHEDULE 13D/A Incyte Corp INCY 30,865,077 view →
2025-06-30 SCHEDULE Kymera Therapeutics, Inc. KYMR 9.50% 6,666,540 view →
2024-10-08 SC Kiniksa Pharmaceuticals International, plc KNSA view →
2024-06-14 SC INCYTE CORP INCY view →
2023-12-18 SC Seagen Inc. view →
2023-10-10 SC Neoleukin Therapeutics, Inc. NGNE view →
2023-10-05 SC MADRIGAL PHARMACEUTICALS, INC. MDGL view →
2023-07-19 SC Neoleukin Therapeutics, Inc. NGNE view →
2023-05-24 SC Prelude Therapeutics Inc PRLD view →
2023-05-24 SC ACADIA PHARMACEUTICALS INC ACAD view →
2023-05-03 SC Seagen Inc. view →
2023-03-15 SC INCYTE CORP INCY view →
2023-03-13 SC Seagen Inc. view →
2023-01-17 SC ACADIA PHARMACEUTICALS INC ACAD view →
2022-07-20 SC Immunocore Holdings plc IMCR view →
Showing 20 of 64

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