---
title: "PLC SYSTEMS INC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ab56c3bd-daf9-5548-85de-a073725fd219
json: https://whiteintel.dev/api/public/dossier/ab56c3bd-daf9-5548-85de-a073725fd219
identifier: sec:0000879682
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PLC SYSTEMS INC

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0000879682`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ab56c3bd-daf9-5548-85de-a073725fd219  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ab56c3bd-daf9-5548-85de-a073725fd219  

## Ownership & control

### Owners / controllers

- **GOLDMAN SACHS GROUP INC** (tenpercentowner) — https://whiteintel.dev/entity/10616dd0-5b35-5485-a921-1410ec73e40a
- **GOLDMAN SACHS & CO** (tenpercentowner) — https://whiteintel.dev/entity/ff80cf88-76a9-5f84-9e8d-a569b55699ff
- **Nantahala Capital Management, LLC** (tenpercentowner) — https://whiteintel.dev/entity/2ffbfa05-1ab2-5bdc-89bf-446bf7492d25
- **Mack Daniel** (tenpercentowner) — https://whiteintel.dev/entity/8ee74737-f7d1-5930-b534-c6e899a1b835
- **Harkey Wilmot B.** (tenpercentowner) — https://whiteintel.dev/entity/26ede154-1ea3-55d5-9e86-f38b9a54a0a4
- **PLEXICO JON M** (tenpercentowner) — https://whiteintel.dev/entity/8b11ac8b-f4d2-5ed0-9801-d798322062f8
- **STONEPINE CAPITAL L P** (tenpercentowner) — https://whiteintel.dev/entity/7f2d8304-62dc-5d6b-ba0e-20419f44bf65
- **STONEPINE CAPITAL MANAGEMENT, LLC** (tenpercentowner) — https://whiteintel.dev/entity/4daf835a-d6e9-58c5-9696-b10a1df5cbf6
- **LYNCH TIMOTHY P** (tenpercentowner) — https://whiteintel.dev/entity/880b7ea4-b26e-5163-9ca8-203b1f9cb644
- **COLELLA MARK SAMUEL** (tenpercentowner) — https://whiteintel.dev/entity/32410d72-9d4c-5a47-b040-e774c219ca3c
- **SMITH BRIGITTE** (tenpercentowner) — https://whiteintel.dev/entity/92ccb87a-caf1-5d10-911e-aaeef4a91bef
- **JANNEY DANIEL** (tenpercentowner) — https://whiteintel.dev/entity/369ab864-ed09-5031-aea3-9c100e41e8f7
- **ALTA BIOEQUITIES, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/eefe2778-607d-5993-bc99-e841aa15602f
- **ALTA BIOEQUITIES MANAGEMENT, LLC** (tenpercentowner) — https://whiteintel.dev/entity/f4511f98-46fd-593a-97cc-fbae7bfb1dd1
- **5AM CO-INVESTORS II LP** (tenpercentowner) — https://whiteintel.dev/entity/e21d80e3-deb1-51ef-a023-32f0cc93329b
- **5AM PARTNERS II, LLC** (tenpercentowner) — https://whiteintel.dev/entity/c74668cf-a403-501d-b8b0-3a678ef3bdea
- **ROCKLAGE SCOTT M** (tenpercentowner) — https://whiteintel.dev/entity/d6df5162-fc9f-58ff-8e74-b0f4b2b6ea81
- **5AM VENTURES II LP** (tenpercentowner) — https://whiteintel.dev/entity/f5a20f39-645c-578d-9e4a-f3df91269a20
- **Schwab Andrew J.** (tenpercentowner) — https://whiteintel.dev/entity/8f30801b-d5eb-51c9-919f-44e2852ff52d
- **DIEKMAN JOHN D** (tenpercentowner) — https://whiteintel.dev/entity/354fa538-2f56-5901-a4ca-d53b41a4bdca
- **GBS VENTURE PARTNERS PTY, LTD** (tenpercentowner) — https://whiteintel.dev/entity/d579efe0-0553-5516-a758-988d1b98f9b8
- **GBS BIOVENTURES III A/C** (tenpercentowner) — https://whiteintel.dev/entity/3cf5bde1-e432-5db7-ac0f-ef027f5d3f5e

### UBO chain (walk to the ultimate owner)

A **1000-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key 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 **PLC SYSTEMS INC** — https://whiteintel.dev/entity/ab56c3bd-daf9-5548-85de-a073725fd219 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PLC SYSTEMS INC**. Human view: https://whiteintel.dev/entity/ab56c3bd-daf9-5548-85de-a073725fd219 · Structured JSON: https://whiteintel.dev/api/public/dossier/ab56c3bd-daf9-5548-85de-a073725fd219._

_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"._