HEARTLAND ADVISORS INC → HARVARD BIOSCIENCE INC HBIO

Stake: — Shares: —

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 20/100

Passive Schedule 13G filer baseline
Held by 1 tracked 13F institutional manager
Moderate short days-to-cover (3.1 DTC)
Short interest building (+11.5% vs prior settlement)

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)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

6 13D/G filings on this issuer

5 other filings besides this one

Filer Track Record

4 filings by this filer

3 other filings in the data moat

Short Interest · settle 2026-10-15

DTC 3.15

50,161 shares short · +11.5% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers

1 holder · $10K

Point72 Asset Mgmt

Other 13D/G Filings on HARVARD BIOSCIENCE INC

Filed	Form	Filer	Stake	Shares
2026-09-22	SCHEDULE 13G/A	Leviticus Partners LP	—	—	view →
2020-06-22	SC	ENGINE CAPITAL, L.P.	—	—	view →
2020-06-01	SC	ENGINE CAPITAL, L.P.	—	—	view →
2020-04-06	SC	ENGINE CAPITAL, L.P.	—	—	view →
2020-02-19	SC	ENGINE CAPITAL, L.P.	—	—	view →

Other Filings by HEARTLAND ADVISORS INC

Filed	Form	Issuer	Stake	Shares
2021-11-16	SC	PERMA FIX ENVIRONMENTAL SERVICES INC PESI	—	—	view →
2021-09-14	SC	PERMA FIX ENVIRONMENTAL SERVICES INC PESI	—	—	view →
2021-01-13	SC	PERMA FIX ENVIRONMENTAL SERVICES INC PESI	—	—	view →

Want this depth on every filing the moment it hits SEC EDGAR?

Free $0 (48h-delayed alerts) · Individual $49/mo (real-time) · Team & API $199/mo · Enterprise.

See pricing →