First Solar, Inc. Insider Trading

FSLR

Last 12 months

Insiders sold $33.5M and bought nothing on the open market.

61% of the selling was scheduled in advance under 10b5-1 plans. Director Paul H Stebbins sold $1.84M on Nov 7, 2025, 31% of their stake, outside a plan. The last open-market buy by an executive or director was in Mar 2023.

Net open-market

−$33.5M

0 buys · 68 sales

Under a 10b5-1 plan

61%

of the value sold

Insiders who bought / sold

0 / 13

executives and directors

Last open-market buy

Mar 2023

Mar 7, 2023

Get an email when FSLR's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Oct 1	Markus Gloeckler Chief Technology Officer	Sold10b5-1 plan	800	$174.00	139K	14%	Form 4
Sep 1	Markus Gloeckler Chief Technology Officer	Sold10b5-1 plan	800	$200.00	160K	12%	Form 4
Aug 17	Samantha L. Sloan EVP, Corporate Affairs	SoldNo plan	127	$222.95	28K	5.9%	Form 4
Aug 11	Jason E. Dymbort General Counsel and Secretary	Sold10b5-1 plan	3,700	$249.38	923K	40%	Form 4
Aug 3 – 4	Markus Gloeckler Chief Technology Officer	Sold10b5-1 plan 3 parts	4,254	$224.61 average	955K	39%	Form 4
Aug 3	Michael Koralewski Chief Supply Chain Officer	Sold10b5-1 plan 2 parts	7,000	$221.51 average	$1.55M	48%	Form 4
Jun 2	Patrick James Buehler Chief Product Officer	Sold10b5-1 plan	3,000	$302.00	906K	41%	Form 4
May 28	Caroline Stockdale Chief People and Comm. Officer	Sold10b5-1 plan	10,628	$275.60	$2.93M	31%	Form 4
May 22 – 26	Mark R Widmar Chief Executive Officer	Sold10b5-1 plan 17 parts	7,172	$264.89 average	$1.9M	8.1%	Form 4
May 21	Kuntal Kumar Verma Chief Manufacturing Officer	Sold10b5-1 plan	582	$250.00	146K	10%	Form 4
May 21	Mark R Widmar Chief Executive Officer	Sold10b5-1 plan 13 parts	4,815	$247.43 average	$1.19M	5.1%	Form 4
May 11 – 13	Mark R Widmar Chief Executive Officer	Sold10b5-1 plan 8 parts	11,226	$234.00 average	$2.63M	11%	Form 4
May 11 – 13	Kuntal Kumar Verma Chief Manufacturing Officer	Sold10b5-1 plan 3 parts	3,671	$231.42 average	850K	40%	Form 4
May 6	Kuntal Kumar Verma Chief Manufacturing Officer	Sold10b5-1 plan	270	$218.16	59K	2.8%	Form 4
May 6	Nathan B. Theurer VP - Global Controller and CAO	Sold10b5-1 plan	31	$218.16	7K	100%	Form 4
May 6	Jason E. Dymbort General Counsel and Secretary	Sold10b5-1 plan	228	$218.16	50K	2.4%	Form 4
May 5	Georges Antoun Chief Commercial Officer	SoldNo plan	566	$215.63	122K	2.8%	Form 4
May 5	Alexander R. Bradley Chief Financial Officer	SoldNo plan	498	$215.63	107K	1.6%	Form 4
May 5	Michael Koralewski Chief Supply Chain Officer	SoldNo plan	215	$215.63	46K	1.4%	Form 4
May 5	Patrick James Buehler Chief Product Officer	SoldNo plan	235	$215.63	51K	3.1%	Form 4
May 5	Jason E. Dymbort General Counsel and Secretary	SoldNo plan	409	$215.63	88K	3.8%	Form 4
May 5	Markus Gloeckler Chief Technology Officer	SoldNo plan	420	$215.63	91K	3.7%	Form 4
May 5	Samantha L. Sloan EVP, Corporate Affairs	SoldNo plan	19	$215.63	4K	1.1%	Form 4
May 5	Caroline Stockdale Chief People and Comm. Officer	SoldNo plan	262	$215.63	56K	0.8%	Form 4
May 5	Nathan B. Theurer VP - Global Controller and CAO	SoldNo plan	13	$215.63	3K	30%	Form 4
May 5	Kuntal Kumar Verma Chief Manufacturing Officer	SoldNo plan	479	$215.63	103K	4.8%	Form 4
May 5	Mark R Widmar Chief Executive Officer	SoldNo plan	1,526	$215.63	329K	1.4%	Form 4
Apr 15	Kuntal Kumar Verma Chief Manufacturing Officer	Sold10b5-1 plan	573	$210.00	120K	6.1%	Form 4
Mar 16 – 17	Kuntal Kumar Verma Chief Manufacturing Officer	Sold10b5-1 plan 2 parts	572	$200.40 average	115K	5.7%	Form 4
Mar 16 – 17	Nathan B. Theurer VP - Global Controller and CAO	Sold10b5-1 plan 2 parts	131	$199.87 average	26K	100%	Form 4
Mar 16 – 17	Jason E. Dymbort General Counsel and Secretary	Sold10b5-1 plan 2 parts	9,380	$199.67 average	$1.87M	49%	Form 4
Mar 16 – 17	Alexander R. Bradley Chief Financial Officer	Sold10b5-1 plan 6 parts	14,696	$200.00 average	$2.94M	33%	Form 4
Mar 16	Mark R Widmar Chief Executive Officer	SoldNo plan	1,937	$200.80	389K	1.8%	Form 4
Mar 16	Caroline Stockdale Chief People and Comm. Officer	SoldNo plan	335	$200.80	67K	1.0%	Form 4
Mar 16	Samantha L. Sloan EVP, Corporate Affairs	SoldNo plan	120	$200.80	24K	6.7%	Form 4
Mar 16	Michael Koralewski Chief Supply Chain Officer	SoldNo plan	264	$200.80	53K	1.8%	Form 4
Mar 16	Markus Gloeckler Chief Technology Officer	SoldNo plan	368	$200.80	74K	3.4%	Form 4
Mar 16	Patrick James Buehler Chief Product Officer	SoldNo plan	180	$200.80	36K	2.5%	Form 4
Mar 16	Georges Antoun Chief Commercial Officer	SoldNo plan	245	$200.80	49K	1.3%	Form 4
Mar 10	Kuntal Kumar Verma Chief Manufacturing Officer	Sold10b5-1 plan	408	$195.70	80K	4.3%	Form 4

Oct 110b5-1 plan
Markus Gloeckler
Chief Technology Officer · sold 800 at $174.00
139K
14% of stake
Sep 110b5-1 plan
Markus Gloeckler
Chief Technology Officer · sold 800 at $200.00
160K
12% of stake
Aug 17No plan
Samantha L. Sloan
EVP, Corporate Affairs · sold 127 at $222.95
28K
5.9% of stake
Aug 1110b5-1 plan
Jason E. Dymbort
General Counsel and Secretary · sold 3,700 at $249.38
923K
40% of stake
Aug 3 – 410b5-1 plan
Markus Gloeckler
Chief Technology Officer · sold 4,254 at avg $224.61
955K
39% of stake
Aug 310b5-1 plan
Michael Koralewski
Chief Supply Chain Officer · sold 7,000 at avg $221.51
$1.55M
48% of stake
Jun 210b5-1 plan
Patrick James Buehler
Chief Product Officer · sold 3,000 at $302.00
906K
41% of stake
May 2810b5-1 plan
Caroline Stockdale
Chief People and Comm. Officer · sold 10,628 at $275.60
$2.93M
31% of stake
May 22 – 2610b5-1 plan
Mark R Widmar
Chief Executive Officer · sold 7,172 at avg $264.89
$1.9M
8.1% of stake
May 2110b5-1 plan
Kuntal Kumar Verma
Chief Manufacturing Officer · sold 582 at $250.00
146K
10% of stake
May 2110b5-1 plan
Mark R Widmar
Chief Executive Officer · sold 4,815 at avg $247.43
$1.19M
5.1% of stake
May 11 – 1310b5-1 plan
Mark R Widmar
Chief Executive Officer · sold 11,226 at avg $234.00
$2.63M
11% of stake
May 11 – 1310b5-1 plan
Kuntal Kumar Verma
Chief Manufacturing Officer · sold 3,671 at avg $231.42
850K
40% of stake
May 610b5-1 plan
Kuntal Kumar Verma
Chief Manufacturing Officer · sold 270 at $218.16
59K
2.8% of stake
May 610b5-1 plan
Nathan B. Theurer
VP - Global Controller and CAO · sold 31 at $218.16
7K
100% of stake
May 610b5-1 plan
Jason E. Dymbort
General Counsel and Secretary · sold 228 at $218.16
50K
2.4% of stake
May 5No plan
Georges Antoun
Chief Commercial Officer · sold 566 at $215.63
122K
2.8% of stake
May 5No plan
Alexander R. Bradley
Chief Financial Officer · sold 498 at $215.63
107K
1.6% of stake
May 5No plan
Michael Koralewski
Chief Supply Chain Officer · sold 215 at $215.63
46K
1.4% of stake
May 5No plan
Patrick James Buehler
Chief Product Officer · sold 235 at $215.63
51K
3.1% of stake
May 5No plan
Jason E. Dymbort
General Counsel and Secretary · sold 409 at $215.63
88K
3.8% of stake
May 5No plan
Markus Gloeckler
Chief Technology Officer · sold 420 at $215.63
91K
3.7% of stake
May 5No plan
Samantha L. Sloan
EVP, Corporate Affairs · sold 19 at $215.63
4K
1.1% of stake
May 5No plan
Caroline Stockdale
Chief People and Comm. Officer · sold 262 at $215.63
56K
0.8% of stake
May 5No plan
Nathan B. Theurer
VP - Global Controller and CAO · sold 13 at $215.63
3K
30% of stake
May 5No plan
Kuntal Kumar Verma
Chief Manufacturing Officer · sold 479 at $215.63
103K
4.8% of stake
May 5No plan
Mark R Widmar
Chief Executive Officer · sold 1,526 at $215.63
329K
1.4% of stake
Apr 1510b5-1 plan
Kuntal Kumar Verma
Chief Manufacturing Officer · sold 573 at $210.00
120K
6.1% of stake
Mar 16 – 1710b5-1 plan
Kuntal Kumar Verma
Chief Manufacturing Officer · sold 572 at avg $200.40
115K
5.7% of stake
Mar 16 – 1710b5-1 plan
Nathan B. Theurer
VP - Global Controller and CAO · sold 131 at avg $199.87
26K
100% of stake
Mar 16 – 1710b5-1 plan
Jason E. Dymbort
General Counsel and Secretary · sold 9,380 at avg $199.67
$1.87M
49% of stake
Mar 16 – 1710b5-1 plan
Alexander R. Bradley
Chief Financial Officer · sold 14,696 at avg $200.00
$2.94M
33% of stake
Mar 16No plan
Mark R Widmar
Chief Executive Officer · sold 1,937 at $200.80
389K
1.8% of stake
Mar 16No plan
Caroline Stockdale
Chief People and Comm. Officer · sold 335 at $200.80
67K
1.0% of stake
Mar 16No plan
Samantha L. Sloan
EVP, Corporate Affairs · sold 120 at $200.80
24K
6.7% of stake
Mar 16No plan
Michael Koralewski
Chief Supply Chain Officer · sold 264 at $200.80
53K
1.8% of stake
Mar 16No plan
Markus Gloeckler
Chief Technology Officer · sold 368 at $200.80
74K
3.4% of stake
Mar 16No plan
Patrick James Buehler
Chief Product Officer · sold 180 at $200.80
36K
2.5% of stake
Mar 16No plan
Georges Antoun
Chief Commercial Officer · sold 245 at $200.80
49K
1.3% of stake
Mar 1010b5-1 plan
Kuntal Kumar Verma
Chief Manufacturing Officer · sold 408 at $195.70
80K
4.3% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch FSLR, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

FSLR is in 307 US ETFs. The largest of them, with FSLR's weight in each:

Spot a number that looks wrong? Check it in FSLR's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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