Thurman Alex R.

SVP & CHIEF FINANCIAL OFFICER, SVP & Chief Financial Officer · SEC CIK 1920061
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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
$2.72M
34 trades
Net flow
−$2.72M
Net selling
Total filings
57
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
GKOS
Option exercise Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Option exercise · filed May 4, 2026 ΔOwn +23%
+$386.8K
10,000 sh @ $39
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed May 4, 2026 ΔOwn −19%

Thurman Alex R. sold $1.4M of GKOS, trimming their stake 19%.

−$1.4M
10,000 sh @ $140
GKOS
Tax withholding Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Tax withholding · filed Apr 3, 2026 ΔOwn −3.5%
−$174.2K
1,589 sh @ $110
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Mar 27, 2026 ΔOwn −5.6%

Thurman Alex R. sold $267.3K of GKOS, trimming their stake 6%.

−$267.3K
2,511 sh @ $106
GKOS
Grant/award Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Grant/award · filed Mar 27, 2026 ΔOwn +7.9%
+$0
3,303 sh
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GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Mar 25, 2026 ΔOwn −3.2%

Thurman Alex R. sold $160.1K of GKOS, trimming their stake 3%.

−$160.1K
1,521 sh @ $105
GKOS
Tax withholding Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Tax withholding · filed Mar 25, 2026 ΔOwn −4.3%
−$212.6K
2,020 sh @ $105
GKOS
Tax withholding Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Tax withholding · filed Mar 25, 2026 ΔOwn −2.5%
−$131.4K
1,230 sh @ $107
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Mar 19, 2026 ΔOwn −1.3%

Thurman Alex R. sold $62K of GKOS, trimming their stake 1%.

−$62K
625 sh @ $99
GKOS
Tax withholding Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Tax withholding · filed Mar 19, 2026 ΔOwn −1.2%
−$60.7K
614 sh @ $99
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Nov 26, 2025 ΔOwn −0.6%

Thurman Alex R. sold $33.1K of GKOS, trimming their stake 1%.

−$33.1K
315 sh @ $105
GKOS
Tax withholding Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Tax withholding · filed Apr 23, 2025 ΔOwn −4.7%
−$241.2K
2,484 sh @ $97
GKOS
Tax withholding Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Tax withholding · filed Apr 2, 2025 ΔOwn −0.6%
−$30.2K
311 sh @ $97
GKOS
Tax withholding Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Tax withholding · filed Mar 27, 2025 ΔOwn −5.4%
−$349.9K
3,252 sh @ $108
GKOS
Tax withholding Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Tax withholding · filed Mar 27, 2025 ΔOwn −2.8%
−$153.8K
1,592 sh @ $97
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Mar 27, 2025 ΔOwn −1.9%

Thurman Alex R. sold $112.8K of GKOS, trimming their stake 2%.

−$112.8K
1,059 sh @ $107
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Mar 27, 2025 ΔOwn −0.8%

Thurman Alex R. sold $46.2K of GKOS, trimming their stake 1%.

−$46.2K
430 sh @ $107
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Mar 27, 2025 ΔOwn −0.1%

Thurman Alex R. sold $3.4K of GKOS.

−$3.4K
31 sh @ $108
GKOS
Tax withholding Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Tax withholding · filed Mar 17, 2025 ΔOwn −0.8%
−$50K
489 sh @ $102
GKOS
Grant/award Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Grant/award · filed Mar 17, 2025 ΔOwn +9.1%
+$0
5,010 sh
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed May 14, 2024 ΔOwn −0.6%

Thurman Alex R. sold $34.9K of GKOS, trimming their stake 1%.

−$34.9K
316 sh @ $110
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed May 14, 2024 ΔOwn −0.1%

Thurman Alex R. sold $4.1K of GKOS.

−$4.1K
37 sh @ $111
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed May 8, 2024 ΔOwn −0.2%

Thurman Alex R. sold $9.9K of GKOS.

−$9.9K
90 sh @ $110
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed May 6, 2024 ΔOwn −0.6%

Thurman Alex R. sold $35.3K of GKOS, trimming their stake 1%.

−$35.3K
335 sh @ $105
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed May 6, 2024 ΔOwn −0.1%

Thurman Alex R. sold $6.9K of GKOS.

−$6.9K
65 sh @ $107
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed May 6, 2024 ΔOwn −0.1%

Thurman Alex R. sold $4.5K of GKOS.

−$4.5K
42 sh @ $108
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Apr 9, 2024 ΔOwn −0.3%

Thurman Alex R. sold $14.7K of GKOS.

−$14.7K
145 sh @ $101
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Apr 9, 2024 ΔOwn −2.3%

Thurman Alex R. sold $123.3K of GKOS, trimming their stake 2%.

−$123.3K
1,227 sh @ $100
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Apr 9, 2024

Thurman Alex R. sold $1.7K of GKOS.

−$1.7K
18 sh @ $96
GKOS
Sell Thurman Alex R. · SVP & CHIEF FINANCIAL OFFICER · Open-market sale · filed Apr 9, 2024 ΔOwn −0.4%

Thurman Alex R. sold $21K of GKOS.

−$21K
217 sh @ $97

Frequently asked questions

How is Thurman Alex R.'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 Thurman Alex R.'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.