GAMCO Investors’s WD-40 WDFC Stock Holding History

GAMCO Investors’s Portfolio WDFC Stock Details WDFC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$7.65M	Sell	37,500 -320	-0.8%	-$71.5K	0.08%	284
2025 Q4	$7.45M	Hold	37,820	–	–	0.07%	282
2025 Q3	$7.47M	Hold	37,820	–	–	0.07%	285
2025 Q2	$8.63M	Hold	37,820	–	–	0.09%	249
2025 Q1	$9.23M	Hold	37,820	–	–	0.1%	224
2024 Q4	$9.18M	Hold	37,820	–	–	0.1%	236
2024 Q3	$9.75M	Hold	37,820	–	–	0.1%	236
2024 Q2	$8.31M	Hold	37,820	–	–	0.09%	245
2024 Q1	$9.58M	Sell	37,820 -25	-0.1%	-$6.47K	0.1%	232
2023 Q4	$9.05M	Sell	37,845 -500	-1%	-$112K	0.1%	236
2023 Q3	$7.79M	Sell	38,345 -1,000	-3%	-$214K	0.09%	243
2023 Q2	$7.42M	Hold	39,345	–	–	0.08%	268
2023 Q1	$7.01M	Hold	39,345	–	–	0.08%	270
2022 Q4	$6.34M	Hold	39,345	–	–	0.07%	281
2022 Q3	$6.91M	Sell	39,345 -1,000	-2%	-$187K	0.08%	258
2022 Q2	$8.12M	Hold	40,345	–	–	0.09%	247
2022 Q1	$7.39M	Hold	40,345	–	–	0.07%	284
2021 Q4	$9.87M	Hold	40,345	–	–	0.08%	251
2021 Q3	$9.34M	Hold	40,345	–	–	0.08%	256
2021 Q2	$10.3M	Sell	40,345 -500	-1%	-$128K	0.09%	252
2021 Q1	$12.5M	Sell	40,845 -2,655	-6%	-$805K	0.11%	219
2020 Q4	$11.6M	Sell	43,500 -200	-0.5%	-$48.4K	0.11%	228
2020 Q3	$8.27M	Hold	43,700	–	–	0.09%	248
2020 Q2	$8.67M	Hold	43,700	–	–	0.1%	239
2020 Q1	$8.78M	Hold	43,700	–	–	0.1%	221
2019 Q4	$8.48M	Hold	43,700	–	–	0.07%	269
2019 Q3	$8.02M	Hold	43,700	–	–	0.07%	278
2019 Q2	$6.95M	Hold	43,700	–	–	0.05%	305
2019 Q1	$7.41M	Hold	43,700	–	–	0.06%	295
2018 Q4	$8.01M	Hold	43,700	–	–	0.07%	272
2018 Q3	$7.52M	Hold	43,700	–	–	0.05%	302
2018 Q2	$6.39M	Hold	43,700	–	–	0.04%	326
2018 Q1	$5.75M	Hold	43,700	–	–	0.04%	330
2017 Q4	$5.16M	Hold	43,700	–	–	0.03%	356
2017 Q3	$4.89M	Hold	43,700	–	–	0.03%	367
2017 Q2	$4.82M	Sell	43,700 -200	-0.5%	-$21.3K	0.03%	373
2017 Q1	$4.78M	Hold	43,900	–	–	0.03%	374
2016 Q4	$5.13M	Hold	43,900	–	–	0.03%	360
2016 Q3	$4.94M	Hold	43,900	–	–	0.03%	360
2016 Q2	$5.16M	Buy	43,900 +1,000	+2%	+$108K	0.03%	364
2016 Q1	$4.63M	Hold	42,900	–	–	0.03%	375
2015 Q4	$4.23M	Hold	42,900	–	–	0.03%	389
2015 Q3	$3.82M	Sell	42,900 -1,000	-2%	-$87.2K	0.03%	405
2015 Q2	$3.83M	Hold	43,900	–	–	0.02%	423
2015 Q1	$3.89M	Sell	43,900 -100	-0.2%	-$8.4K	0.02%	435
2014 Q4	$3.74M	Hold	44,000	–	–	0.02%	440
2014 Q3	$2.99M	Hold	44,000	–	–	0.02%	481
2014 Q2	$3.31M	Hold	44,000	–	–	0.02%	464
2014 Q1	$3.41M	Sell	44,000 -1,000	-2%	-$72.8K	0.02%	447
2013 Q4	$3.36M	Sell	45,000 -1,000	-2%	-$71.4K	0.02%	448
2013 Q3	$2.98M	Sell	46,000 -1,000	-2%	-$59.6K	0.02%	455
2013 Q2	$2.56M	Buy	+47,000	New	+$2.58M	0.02%	452

Other funds holding WDFC

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Kayne Anderson Rudnick Investment Management Los Angeles, California $34B AUM 6.31% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

GAMCO Investors's WDFC Position: Q1 2026 in Review

GAMCO Investors reduced its WD-40 (WDFC) stake by 0.85% in Q1 2026, selling an estimated $71.5K and leaving 37,500 shares worth $7.65M. The position accounts for 0.08% of the portfolio, ranked #284.

GAMCO Investors first reported a position in WDFC in Q2 2013 and has held it in 52 quarters since. The position peaked at $12.5M in Q1 2021. 380 funds tracked by Wall St. Rank hold WDFC as of Q1 2026.

GAMCO Investors held 37,500 shares of WD-40 worth $7.65M as of Q1 2026.
GAMCO Investors sold 320 WD-40 shares in Q1 2026, an estimated $71.5K.
WD-40 made up 0.08% of GAMCO Investors's portfolio in Q1 2026, its #284 holding.
GAMCO Investors first reported a position in WD-40 in Q2 2013 and has held it in 52 quarters since.
GAMCO Investors's WD-40 position peaked at $12.5M in Q1 2021.
380 funds tracked by Wall St. Rank held WD-40 as of Q1 2026.

Based on GAMCO Investors's 13F filing for Q1 2026, filed 14 May 2026.