Mario Gabelli Oceaneering International Inc Transaction History

Gamco Investors, Inc. Et Al

$9.45 Billion
Q3 2025

A detailed history of Mario Gabelli (Gamco Investors, Inc. Et Al) transactions in Oceaneering International Inc stock. As of the latest transaction made, Gamco Investors, Inc. Et Al holds 306,440 shares of OII stock, worth $7.34 Million. This represents 0.08% of its overall portfolio holdings.

Number of Shares

306,440

Previous 350,440 12.56%

Holding current value

$7.34 Million

Previous $7.26 Million 4.57%

% of portfolio

0.08%

Previous 0.08%

31 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	SELL	$20.47 - $25.66 $900,680 - $1.13 Million	-44,000 Reduced 12.56%	306,440 $7.59 Million
Q2 2025 Aug 13, 2025	SELL	$15.95 - $22.55 $315,012 - $445,362	-19,750 Reduced 5.34%	350,440 $7.26 Million
Q1 2025 May 14, 2025	SELL	$19.14 - $27.93 $16,269 - $23,740	-850 Reduced 0.23%	370,190 $8.07 Million
Q4 2024 Feb 13, 2025	BUY	$23.23 - $30.58 $621,402 - $818,015	26,750 Added 7.77%	371,040 $9.68 Million
Q3 2024 Nov 14, 2024	SELL	$22.41 - $30.02 $1.8 Million - $2.41 Million	-80,350 Reduced 18.92%	344,290 $8.56 Million

Q2 2024 Aug 13, 2024	SELL	$20.86 - $25.51 $354,620 - $433,670	-17,000 Reduced 3.85%	424,640 $10 Million
Q1 2024 May 14, 2024	SELL	$19.11 - $23.4 $121,061 - $148,239	-6,335 Reduced 1.41%	441,640 $10.3 Million
Q3 2023 Nov 08, 2023	SELL	$19.03 - $27.19 $244,059 - $348,711	-12,825 Reduced 2.78%	447,975 $11.5 Million
Q2 2023 Aug 10, 2023	BUY	$15.31 - $18.7 $463,893 - $566,610	30,300 Added 7.04%	460,800 $8.62 Million
Q1 2023 May 12, 2023	SELL	$16.19 - $22.11 $35,618 - $48,642	-2,200 Reduced 0.51%	430,500 $7.59 Million
Q4 2022 Feb 13, 2023	BUY	$8.57 - $17.49 $16,283 - $33,231	1,900 Added 0.44%	432,700 $7.57 Million
Q3 2022 Nov 10, 2022	BUY	$7.3 - $11.27 $445,665 - $688,033	61,050 Added 16.51%	430,800 $3.43 Million
Q2 2022 Aug 12, 2022	BUY	$8.83 - $15.55 $24,724 - $43,540	2,800 Added 0.76%	369,750 $3.95 Million
Q4 2021 Feb 11, 2022	BUY	$10.63 - $15.66 $398,093 - $586,467	37,450 Added 11.37%	366,950 $4.15 Million
Q3 2021 Nov 12, 2021	BUY	$10.98 - $16.56 $197,640 - $298,080	18,000 Added 5.78%	329,500 $4.39 Million
Q2 2021 Aug 13, 2021	BUY	$9.94 - $18.2 $365,126 - $668,540	36,733 Added 13.37%	311,500 $4.85 Million
Q1 2021 May 14, 2021	BUY	$8.23 - $15.31 $16,460 - $30,620	2,000 Added 0.73%	274,767 $3.14 Million
Q4 2020 Feb 05, 2021	SELL	$3.48 - $8.85 $106,557 - $270,987	-30,620 Reduced 10.09%	272,767 $2.17 Million
Q3 2020 Nov 06, 2020	SELL	$3.52 - $6.28 $150,937 - $269,286	-42,880 Reduced 12.38%	303,387 $1.07 Million
Q2 2020 Aug 13, 2020	BUY	$2.74 - $8.84 $89,050 - $287,300	32,500 Added 10.36%	346,267 $2.21 Million
Q1 2020 May 14, 2020	BUY	$2.08 - $15.96 $37,856 - $290,472	18,200 Added 6.16%	313,767 $922,000
Q4 2019 Feb 14, 2020	SELL	$12.49 - $15.14 $15,824 - $19,182	-1,267 Reduced 0.43%	295,567 $4.41 Million
Q3 2019 Nov 01, 2019	SELL	$11.58 - $20.32 $355,506 - $623,824	-30,700 Reduced 9.37%	296,834 $4.02 Million
Q2 2019 Aug 02, 2019	SELL	$15.25 - $20.39 $34,312 - $45,877	-2,250 Reduced 0.68%	327,534 $6.68 Million
Q1 2019 May 02, 2019	SELL	$12.64 - $16.87 $5,056 - $6,748	-400 Reduced 0.12%	329,784 $5.2 Million
Q4 2018 Jan 30, 2019	SELL	$10.96 - $27.4 $12,056 - $30,140	-1,100 Reduced 0.33%	330,184 $4 Million
Q3 2018 Nov 02, 2018	SELL	$24.98 - $28.49 $661,970 - $754,985	-26,500 Reduced 7.41%	331,284 $9.14 Million
Q2 2018 Aug 10, 2018	SELL	$17.95 - $25.46 $50,260 - $71,288	-2,800 Reduced 0.78%	357,784 $9.11 Million
Q1 2018 May 09, 2018	SELL	$17.86 - $23.45 $566,162 - $743,365	-31,700 Reduced 8.08%	360,584 $6.69 Million
Q4 2017 Feb 02, 2018	SELL	$18.28 - $25.84 $53,012 - $74,936	-2,900 Reduced 0.73%	392,284 $8.29 Million
Q3 2017 Nov 01, 2017	BUY	$22.18 - $26.63 $8.77 Million - $10.5 Million	395,184	395,184 $10.4 Million

Others Institutions Holding OII

# of Institutions

327

Shares Held

96.4M

Call Options Held

279K

Put Options Held

151K

View Full List

About OCEANEERING INTERNATIONAL INC

Ticker OII
Exchange NYSE
Sector Energy
Industry Oil & Gas Equipment & Services
Shares Outstandng 100,260,000
Market Cap $2.4B
Description
Oceaneering International, Inc. provides engineered services, products, and robotic solutions to the offshore energy, defense, aerospace, manufacturing, and entertainment industries worldwide. The company's Subsea Robotics segment provides remotely operated vehicles (ROVs) for drill support and vessel-based services, including subsea hardware in...

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