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Insider · CIK 0001759241

Atlas Venture Opportunity Fund I, L.P.

CIK 0001759241 Name as filed on the most recent filing

Filed as Atlas Venture Opportunity Fund I, L.P. (25)

133 transaction lines · from 25 filings · filed 2019-06-25 to 2024-03-13 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-21 05:23 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

0 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-21 05:23 UTC.

Transactions filed by this insider
Direction Date Issuer Code Shares Price Value USD Filing
2023-12-14 Disc Medicine, Inc.
IRON 		S, Open-market sale 20,429 disposed 58.27 1,190,397.83 Form 4, filing 0001209191-23-058707
2023-12-14 Disc Medicine, Inc.
IRON 		S, Open-market sale 180 disposed 59.74 10,753.20 Form 4, filing 0001209191-23-058707
2023-12-14 Disc Medicine, Inc.
IRON 		S, Open-market sale 120 disposed 59.74 7,168.80 Form 4, filing 0001209191-23-058707
2023-12-13 Disc Medicine, Inc.
IRON 		S, Open-market sale 5,263 disposed 59.99 315,727.37 Form 4, filing 0001209191-23-058707
2023-12-13 Disc Medicine, Inc.
IRON 		S, Open-market sale 3,508 disposed 59.99 210,444.92 Form 4, filing 0001209191-23-058707
2023-12-13 Disc Medicine, Inc.
IRON 		S, Open-market sale 60 disposed 60.50 3,630.00 Form 4, filing 0001209191-23-058707
2023-12-13 Disc Medicine, Inc.
IRON 		S, Open-market sale 40 disposed 60.50 2,420.00 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 31,235 disposed 59.87 1,870,039.45 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 27,924 disposed 65.10 1,817,852.40 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 20,823 disposed 59.87 1,246,673.01 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 18,615 disposed 65.10 1,211,836.50 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 9,901 disposed 65.77 651,188.77 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 6,599 disposed 65.77 434,016.23 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 6,234 disposed 62.42 389,126.28 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 4,155 disposed 62.42 259,355.10 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 1,031 disposed 63.78 65,757.18 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 994 disposed 62.90 62,522.60 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 688 disposed 63.78 43,880.64 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 665 disposed 62.90 41,828.50 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 632 disposed 60.99 38,545.68 Form 4, filing 0001209191-23-058707
2023-12-12 Disc Medicine, Inc.
IRON 		S, Open-market sale 422 disposed 60.99 25,737.78 Form 4, filing 0001209191-23-058707
2023-08-15 Disc Medicine, Inc.
IRON 		S, Open-market sale 111,069 disposed 52.40 5,820,015.60 Form 4, filing 0001209191-23-046110
2023-08-15 Disc Medicine, Inc.
IRON 		S, Open-market sale 72,931 disposed 52.40 3,821,584.40 Form 4, filing 0001209191-23-046110
2023-08-14 Disc Medicine, Inc.
IRON 		S, Open-market sale 98,000 disposed 53.00 5,194,000.00 Form 4, filing 0001209191-23-046110
2023-08-14 Disc Medicine, Inc.
IRON 		S, Open-market sale 75,000 disposed 52.00 3,900,000.00 Form 4, filing 0001209191-23-046110
2023-08-14 Disc Medicine, Inc.
IRON 		S, Open-market sale 2,000 disposed 54.80 109,600.00 Form 4, filing 0001209191-23-046110
2023-01-12 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 77,128 disposed 30.29 2,336,207.12 Form 4, filing 0001209191-23-003293
2023-01-12 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 21,592 disposed 30.29 654,021.68 Form 4, filing 0001209191-23-003293
2023-01-11 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 21,683 disposed 29.96 649,622.68 Form 4, filing 0001209191-23-003293
2023-01-11 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 6,071 disposed 29.96 181,887.16 Form 4, filing 0001209191-23-003293
2022-12-15 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 2,561 disposed 30.00 76,830.00 Form 4, filing 0001209191-22-061706
2022-12-15 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 717 disposed 30.00 21,510.00 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 112,819 disposed 30.28 3,416,159.32 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 101,189 disposed 31.44 3,181,382.16 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 54,737 disposed 32.33 1,769,647.21 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 31,584 disposed 30.28 956,363.52 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 28,329 disposed 31.44 890,663.76 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 15,324 disposed 32.33 495,424.92 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 13,997 disposed 33.34 466,659.98 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 13,335 disposed 34.02 453,656.70 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 3,919 disposed 33.34 130,659.46 Form 4, filing 0001209191-22-061706
2022-12-14 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 3,733 disposed 34.02 126,996.66 Form 4, filing 0001209191-22-061706
2022-12-12 Dyne Therapeutics, Inc.
DYN 		P, Open-market purchase 934,581 acquired 10.70 10,000,016.70 Form 4, filing 0001209191-22-061243
2022-11-03 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 75,312 disposed 30.00 2,259,360.00 Form 4, filing 0001209191-22-055808
2022-11-03 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 21,085 disposed 30.00 632,550.00 Form 4, filing 0001209191-22-055808
2022-11-02 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 96,581 disposed 30.02 2,899,361.62 Form 4, filing 0001209191-22-055808
2022-11-02 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 27,038 disposed 30.02 811,680.76 Form 4, filing 0001209191-22-055808
2022-11-01 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 56,455 disposed 30.57 1,725,829.35 Form 4, filing 0001209191-22-055142
2022-11-01 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 15,804 disposed 30.57 483,128.28 Form 4, filing 0001209191-22-055142
2022-11-01 Kymera Therapeutics, Inc.
KYMR 		S, Open-market sale 3,727 disposed 31.08 115,835.16 Form 4, filing 0001209191-22-055142

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

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Codes on this page
S, Open-market sale
Open-market sale
P, Open-market purchase
Open-market purchase

Every value is as reported on the Form 4. A price the filing did not report is marked Not reported and no value is computed from it. Codes outside the open market, drawn in grey behind a dashed rule, are compensation and administrative machinery rather than a decision to trade at the prevailing price.

What this insider's stored lines contain

No transaction line is stored for this entity, so there is nothing to break down by code. The catalog holds its filings; what it does not hold is a single reportable line from them, which is a fact about the parse and about these filings, not about the entity.

How to cite this page

ebomi catalog. Atlas Venture Opportunity Fund I, L.P., insider transactions. Retrieved 2026-08-21 from https://ebomi.com/insider/0001759241

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

This page as JSON The JSON twin is shaped by the same read model as this page, so the two cannot disagree. Its envelope carries the canonical URL, the retrieval time, the coverage claim, and the licence statement.