---
title: "POLARIS VENTURE MANAGEMENT CO. V, L.L.C. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/1297e063-d497-51ef-8d8f-22de9e19ee09
json: https://whiteintel.dev/api/public/dossier/1297e063-d497-51ef-8d8f-22de9e19ee09
identifier: sec:0001439589
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# POLARIS VENTURE MANAGEMENT CO. V, L.L.C.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001439589`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/1297e063-d497-51ef-8d8f-22de9e19ee09  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/1297e063-d497-51ef-8d8f-22de9e19ee09  

## Ownership & control

### Holdings / subsidiaries

- **Invivyd, Inc.** (other) — https://whiteintel.dev/entity/737557a9-64ec-5f42-9453-a9df6d7788e6
- **Lyra Therapeutics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/a28ed6ed-b39d-5688-accd-e70e112d882a
- **Phreesia, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/2f57e796-beee-5517-8376-662f5860e8ea
- **Cardlytics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/13c66d6d-5ced-548f-a12a-0fc22c972cdd
- **Cardlytics, Inc.** (director) — https://whiteintel.dev/entity/13c66d6d-5ced-548f-a12a-0fc22c972cdd
- **PULMATRIX, INC.** (tenpercentowner) — https://whiteintel.dev/entity/50136411-1b79-51e5-96e5-fc66e5d6e3f8
- **X4 Pharmaceuticals, Inc** (tenpercentowner) — https://whiteintel.dev/entity/faa4b0df-34a4-5462-b727-ec322e28bc73
- **KALA BIO, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/e0248354-f35e-5a0a-b45d-19278abdce0e
- **Cartesian Therapeutics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/595d5f58-f9b0-50ec-bf90-fb0e83f33dcd
- **T2 Biosystems, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/87a8bf9a-18bb-5181-85e6-a368bd381951
- **aTYR PHARMA INC** (tenpercentowner) — https://whiteintel.dev/entity/7d0875a2-005c-5837-b4fa-bd6cd0d6d971
- **GENOCEA BIOSCIENCES INC** (tenpercentowner) — https://whiteintel.dev/entity/58861c98-cb12-5bb9-b347-0a7d1eb6ca32

…and **6** more subsidiaries/holdings. Resolve the full list with `get_dossier` on the WhiteIntel MCP (`npx -y @whiteintel/mcp-server`) or a one-off dossier — https://whiteintel.dev/pricing.

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **POLARIS VENTURE MANAGEMENT CO. V, L.L.C.** — https://whiteintel.dev/entity/1297e063-d497-51ef-8d8f-22de9e19ee09 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **POLARIS VENTURE MANAGEMENT CO. V, L.L.C.**. Human view: https://whiteintel.dev/entity/1297e063-d497-51ef-8d8f-22de9e19ee09 · Structured JSON: https://whiteintel.dev/api/public/dossier/1297e063-d497-51ef-8d8f-22de9e19ee09._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._