Bought the Dip — Purchased Within 5 Trading Days of an 8%+ Drop

Updated: Aug 23, 10:41 AM ET

We found 16 stocks with an open-market purchase within 5 trading days of a single-day drop of 8% or more.

The steepest drop was CDNL, down -36.2% in a single day.

The decline percentage is based on the previous close vs. the day's close. Showing the top 16 tickers by total buy value (of 25 — tickers without daily price data are excluded).

16 companies

CDNL

Cardinal Infrastructure Group Inc

-36.2%

Drop condition (as of 2026-08-11)

Single-day change: -36.2%

Buys in window: 1

Wimmer Richard Bennett
2026-08-17Shares bought 7,500Avg. price $39.134 trading days after
GAIA

Gaia Inc

-35.0%

Drop condition (as of 2026-08-11)

Single-day change: -35.0%

Buys in window: 1

Sutherland Paul Howard
2026-08-17Shares bought 3,420Avg. price $1.474 trading days after
OPFI

OppFi Inc

-24.9%

Drop condition (as of 2026-08-11)

Single-day change: -24.9%

Buys in window: 2

Schwartz Todd G.
2026-08-17Shares bought 3,500Avg. price $7.004 trading days after
Schwartz Todd G.
2026-08-18Shares bought 3,550Avg. price $7.045 trading days after
REZI

Resideo Technologies Inc

-20.4%

Drop condition (as of 2026-08-13)

Single-day change: -20.4%

Buys in window: 1

Mehta Amit Ashvin
2026-08-17Shares bought 10,928.4Avg. price $20.682 trading days after
INV

Learn CW Investment Corp

-14.2%

Drop condition (as of 2026-08-17)

Single-day change: -14.2%

Buys in window: 4

Brown Bruce
2026-08-20Shares bought 30,000Avg. price $1.513 trading days after
Otworth Michael
2026-08-20Shares bought 231,000Avg. price $1.513 trading days after
Donnally James O
2026-08-20Shares bought 225,000Avg. price $1.503 trading days after
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Haskell Gregory W
2026-08-20Shares bought 50,000Avg. price $1.513 trading days after
IDAI

T Stamp Inc

-12.7%

Drop condition (as of 2026-08-11)

Single-day change: -12.7%

Buys in window: 3

Genner Gareth Neville
2026-08-18Shares bought 4,000Avg. price $2.465 trading days after
Genner Gareth Neville
2026-08-18Shares bought 500Avg. price $2.535 trading days after
Genner Gareth Neville
2026-08-18Shares bought 2,000Avg. price $2.525 trading days after
PTIX

Protagenic Therapeutics Inc

-10.9%

Drop condition (as of 2026-08-14)

Single-day change: -10.9%

Buys in window: 2

ARMEN GARO H
2026-08-19Shares bought 2,700Avg. price $0.353 trading days after
ARMEN GARO H
2026-08-20Shares bought 16,634Avg. price $0.594 trading days after
PODC

Podcastone Inc

-10.7%

Drop condition (as of 2026-08-17)

Single-day change: -10.7%

Buys in window: 1

MERRIMAN D JONATHAN
2026-08-17Shares bought 11,300Avg. price $2.80Same day
FTLF

FitLife Brands Inc

-10.0%

Drop condition (as of 2026-08-17)

Single-day change: -10.0%

Buys in window: 1

Pappas Shannon K.
2026-08-19Shares bought 1,000Avg. price $10.252 trading days after
ICU

SeaStar Medical Holding Corp

-8.9%

Drop condition (as of 2026-08-12)

Single-day change: -8.9%

Buys in window: 1

Messinger Michael
2026-08-18Shares bought 750Avg. price $3.274 trading days after
BRLT

Brilliant Earth Group Inc

-8.3%

Drop condition (as of 2026-08-17)

Single-day change: -8.3%

Buys in window: 4

Grossberg Eric Scott
2026-08-18Shares bought 9,619Avg. price $1.271 trading days after
Grossberg Eric Scott
2026-08-19Shares bought 381Avg. price $1.262 trading days after
Gerstein Beth Tamara
2026-08-18Shares bought 6,797Avg. price $1.251 trading days after
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Gerstein Beth Tamara
2026-08-19Shares bought 3,203Avg. price $1.262 trading days after
NVRI

Enviri Corp

-7.9%

Drop condition (as of 2026-08-11)

Single-day change: -7.9%

Buys in window: 3

HAZNEDAR CAROLANN I
2026-08-17Shares bought 4,875Avg. price $20.464 trading days after
Minan Peter Francis
2026-08-18Shares bought 2,439Avg. price $20.435 trading days after
Minan Peter Francis
2026-08-18Shares bought 507Avg. price $19.505 trading days after
AMPG

Amplitech Group Inc

-7.4%

Drop condition (as of 2026-08-17)

Single-day change: -7.4%

Buys in window: 2

Maqbool Fawad
2026-08-20Shares bought 5,000Avg. price $3.533 trading days after
Maqbool Fawad
2026-08-20Shares bought 7,247Avg. price $3.453 trading days after
HUMA

Humacyte Inc

-7.3%

Drop condition (as of 2026-08-17)

Single-day change: -7.3%

Buys in window: 2

Jones Keith Anthony
2026-08-17Shares bought 30,000Avg. price $0.59Same day
Jones Keith Anthony
2026-08-20Shares bought 10,000Avg. price $0.693 trading days after
TELA

TELA Bio Inc

-5.9%

Drop condition (as of 2026-08-13)

Single-day change: -5.9%

Buys in window: 1

Getz Heather C
2026-08-17Shares bought 12,500Avg. price $0.662 trading days after
LBGJ

Li Bang International Corporation Inc

4.3%

Drop condition (as of 2026-08-14)

Single-day change: 4.3%

Buys in window: 2

Huang Feng
2026-08-17Shares bought 73,147Avg. price $3.401 trading days after
Li Funa
2026-08-17Shares bought 15,088Avg. price $3.401 trading days after

Calculation criteria

  • · Target transactions: SEC Form 4 code P (open-market purchase)
  • · Drop condition: close-to-close change of -8% or worse (not based on the intraday low)
  • · Matching window: within 5 trading days of the drop (non-trading days excluded), purchases before the drop are excluded
  • · If the company name matches a person-name pattern, that line is hidden
  • · Updated: Aug 23, 10:41 AM ET

Glossary

SEC Form 4 transaction code P: an open-market purchase made by the insider with their own funds.

Option exercises (M), stock grants (A), and tax-withholding dispositions (F) are not counted as buys.

This page is a mechanical aggregation of SEC Form 4 filings. It is not investment advice or a buy/sell recommendation. Insider trading data and daily stock chart (OHLCV) data are not guaranteed to be accurate or up to date — please do not rely on them blindly, and always verify against the original source (e.g. SEC EDGAR) before acting. Investment decisions are your own responsibility and should be made carefully; we accept no legal liability whatsoever for any loss arising from the use of this information.