InsiderSource

Whitfield Dianne C.

Chief Human Resources Officer · SEC CIK 1839516
Insider at TARS Tarsus Pharmaceuticals, Inc.
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Buy track record

How this insider's open-market purchases have performed
This insider has no open-market purchases in the records we parsed, so there's no buy track record to score. Their full filing history is below.
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Open-market buys
$0
0 trades
Open-market sells
$3.36M
22 trades
Net flow
−$3.36M
Net selling
Total filings
28
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 19, 2026 ΔOwn −11%

Whitfield Dianne C. sold $279.7K of TARS, trimming their stake 11%.

−$279.7K
4,174 sh @ $67
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 19, 2026 ΔOwn −9.4%

Whitfield Dianne C. sold $279.7K of TARS, trimming their stake 9%.

−$279.7K
4,071 sh @ $69
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 19, 2026 ΔOwn −8.5%

Whitfield Dianne C. sold $279.7K of TARS, trimming their stake 9%.

−$279.7K
4,029 sh @ $69
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Jan 6, 2026 ΔOwn −15%

Whitfield Dianne C. sold $457.7K of TARS, trimming their stake 15%.

−$457.7K
5,715 sh @ $80
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TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Jan 6, 2026 ΔOwn −24%

Whitfield Dianne C. sold $655.5K of TARS, trimming their stake 24%.

−$655.5K
8,122 sh @ $81
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Jan 6, 2026 ΔOwn −3.3%

Whitfield Dianne C. sold $68.4K of TARS, trimming their stake 3%.

−$68.4K
835 sh @ $82
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Jan 6, 2026 ΔOwn −3.7%

Whitfield Dianne C. sold $74.1K of TARS, trimming their stake 4%.

−$74.1K
893 sh @ $83
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Dec 18, 2025 ΔOwn −16%

Whitfield Dianne C. sold $592.5K of TARS, trimming their stake 16%.

−$592.5K
7,397 sh @ $80
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 20, 2025 ΔOwn −4.4%

Whitfield Dianne C. sold $107.1K of TARS, trimming their stake 4%.

−$107.1K
2,137 sh @ $50
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 20, 2025 ΔOwn −4.5%

Whitfield Dianne C. sold $107.1K of TARS, trimming their stake 4%.

−$107.1K
2,259 sh @ $47
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 20, 2025 ΔOwn −4.4%

Whitfield Dianne C. sold $107.2K of TARS, trimming their stake 4%.

−$107.2K
2,315 sh @ $46
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 19, 2024 ΔOwn −11%

Whitfield Dianne C. sold $132K of TARS, trimming their stake 11%.

−$132K
4,314 sh @ $31
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Dec 1, 2023 ΔOwn −24%

Whitfield Dianne C. sold $136.3K of TARS, trimming their stake 24%.

−$136.3K
8,355 sh @ $16
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 23, 2023 ΔOwn −3.0%

Whitfield Dianne C. sold $4.2K of TARS, trimming their stake 3%.

−$4.2K
345 sh @ $12
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 23, 2023 ΔOwn −2.8%

Whitfield Dianne C. sold $4.2K of TARS, trimming their stake 3%.

−$4.2K
333 sh @ $13
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 23, 2023 ΔOwn −2.7%

Whitfield Dianne C. sold $4.2K of TARS, trimming their stake 3%.

−$4.2K
326 sh @ $13
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 21, 2023 ΔOwn −2.7%

Whitfield Dianne C. sold $4.2K of TARS, trimming their stake 3%.

−$4.2K
333 sh @ $13
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 21, 2023 ΔOwn −2.5%

Whitfield Dianne C. sold $4.2K of TARS, trimming their stake 2%.

−$4.2K
316 sh @ $13
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Mar 17, 2023 ΔOwn −2.4%

Whitfield Dianne C. sold $4.2K of TARS, trimming their stake 2%.

−$4.2K
313 sh @ $13
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Dec 6, 2022 ΔOwn −12%

Whitfield Dianne C. sold $19.5K of TARS, trimming their stake 12%.

−$19.5K
1,154 sh @ $17
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Dec 1, 2022 ΔOwn −11%

Whitfield Dianne C. sold $19.5K of TARS, trimming their stake 11%.

−$19.5K
1,165 sh @ $17
TARS
Tarsus Pharmaceuticals, Inc.
Sell Whitfield Dianne C. · Chief Human Resources Officer · Open-market sale · filed Dec 1, 2022 ΔOwn −9.7%

Whitfield Dianne C. sold $19.5K of TARS, trimming their stake 10%.

−$19.5K
1,182 sh @ $17

Frequently asked questions

How is Whitfield Dianne C.'s win rate calculated?

We take every open-market purchase (SEC code P) we can match to a stock price, then compare the split- and dividend-adjusted price on the purchase date to the most recent close. The win rate is the share of those buys currently trading above the purchase price. Sales and share grants are not scored.

Why are some buys not included in the score?

A purchase is excluded if we can't price it — for example if the ticker is missing from the filing, the company has been delisted, or the security isn't a common stock we can match to market data. Excluded counts are shown next to the scored total.

What do the 1M / 3M / 6M / 12M columns mean?

They show each purchase's return after a fixed holding period — one, three, six, and twelve months from the buy date — using split- and dividend-adjusted prices. This separates good entry timing from simply holding a long-running winner. A dash means that horizon hasn't elapsed yet for that trade, or the stock couldn't be priced at that date.

Does a high win rate mean I should copy this insider?

No. Past performance does not predict future results, sample sizes are often small, and an insider's edge in their own company doesn't transfer to yours. This is context, not a recommendation. InsiderSource is not investment advice.

Where does this data come from?

Trades come from Whitfield Dianne C.'s SEC Form 4 filings on EDGAR. Prices come from public market data and are split/dividend-adjusted. Always verify against the original filings before acting.