APG Institutional Ownership & Shareholders
API GROUP CORP (APG) is currently held by 568 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $15.15B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of APG tracked by InsiderSet, reporting ownership valued at approximately $1.53B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.60B, representing an estimated gain of +4.70% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 47% of the total disclosed APG value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Janus Henderson Group Plc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in API GROUP CORP (APG).
This page ranks the largest institutional APG shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
568
Total Reported Value
$15.15B
Largest Holder
Blackrock, Inc.
Largest Position
$1.53B
Insider Transactions (90d)
3
Latest Filing Quarter
Q2 2026
New Institutional Positions
50
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 36,185,639 | $1,532,461,825 | $1,604,471,233 | +$72,009,408 | +4.70% | |
| Janus Henderson Group Plc | 0.47% | 23,367,041 | $946,845,651 | $1,036,094,598 | +$89,248,947 | +9.43% | |
| Vanguard Capital Management Llc | 0.02% | 17,550,469 | $743,262,362 | $778,187,795 | +$34,925,433 | +4.70% | |
| Fmr Llc | 0.03% | 17,499,605 | $741,108,216 | $775,932,486 | +$34,824,270 | +4.70% | |
| Vanguard Portfolio Management Llc | 0.03% | 16,565,140 | $701,533,679 | $734,498,308 | +$32,964,629 | +4.70% | |
| Price T Rowe Associates Inc | 0.06% | 14,901,946 | $631,099,000 | $660,752,286 | +$29,653,286 | +4.70% | |
| Durable Capital Partners | Henry Ellenbogen | 5.00% | 12,131,313 | $513,761,106 | $537,902,418 | +$24,141,312 | +4.70% |
| State Street Corp | 0.01% | 11,837,492 | $501,298,265 | $524,874,395 | +$23,576,130 | +4.70% | |
| Pictet Asset Management Holding Sa | 0.42% | 10,303,294 | $436,205,898 | $456,848,056 | +$20,642,158 | +4.73% | |
| Geode Capital Management, Llc | 0.02% | 8,499,092 | $360,016,778 | $376,849,739 | +$16,832,961 | +4.68% | |
| T. Rowe Price Investment Management, Inc. | 0.23% | 8,117,384 | $343,772,000 | $359,924,807 | +$16,152,807 | +4.70% | |
| Capital Research Global Investors | 0.04% | 6,961,228 | $294,808,006 | $308,660,850 | +$13,852,844 | +4.70% | |
| Invesco Ltd. | 0.02% | 6,715,234 | $284,390,159 | $297,753,476 | +$13,363,317 | +4.70% | |
| Artisan Partners Limited Partnership | 0.46% | 6,680,820 | $282,932,719 | $296,227,559 | +$13,294,840 | +4.70% | |
| Findlay Park Partners Llp | 3.73% | 6,522,698 | $276,236,260 | $289,216,429 | +$12,980,169 | +4.70% | |
| Westfield Capital Management Co Lp | 0.85% | 6,154,301 | $260,634,647 | $272,881,706 | +$12,247,059 | +4.70% | |
| Norges Bank | 0.02% | 4,911,433 | $207,999,188 | $217,772,939 | +$9,773,751 | +4.70% | |
| Bessemer Group Inc | 0.24% | 4,083,301 | $172,929,000 | $181,053,566 | +$8,124,566 | +4.70% | |
| Dimensional Fund Advisors Lp | 0.03% | 3,610,222 | $152,853,864 | $160,077,243 | +$7,223,379 | +4.73% | |
| Royal London Asset Management Ltd | 0.28% | 3,570,979 | $151,230,962 | $158,337,209 | +$7,106,247 | +4.70% | |
| Progeny 3, Inc. | 7.74% | 3,540,787 | $149,952,329 | $156,998,496 | +$7,046,167 | +4.70% | |
| Montrusco Bolton Investments Inc. | 2.29% | 3,420,856 | $132,045,041 | $151,680,755 | +$19,635,714 | +14.87% | |
| Northern Trust Corp | 0.02% | 3,109,437 | $131,684,658 | $137,872,437 | +$6,187,779 | +4.70% | |
| Clearbridge Investments, Llc | 0.11% | 3,096,023 | $131,116,574 | $137,277,660 | +$6,161,086 | +4.70% | |
| Gw&K Investment Management, Llc | 0.98% | 2,956,543 | $125,210,000 | $131,093,117 | +$5,883,117 | +4.70% | |
| Charles Schwab Investment Management Inc | 0.02% | 2,953,405 | $125,076,703 | $130,953,978 | +$5,877,275 | +4.70% | |
| Third Point | Daniel Loeb | 2.61% | 2,865,000 | $121,332,750 | $127,034,100 | +$5,701,350 | +4.70% |
| Milford Funds Ltd | 1.94% | 2,814,037 | $119,174,467 | $124,774,401 | +$5,599,934 | +4.70% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.02% | 2,940,696 | $119,157,002 | $130,390,461 | +$11,233,459 | +9.43% | |
| Morgan Stanley | 0.01% | 2,782,919 | $117,856,643 | $123,394,628 | +$5,537,985 | +4.70% | |
| Hood River Capital Management Llc | 0.78% | 2,538,774 | $107,517,079 | $112,569,239 | +$5,052,160 | +4.70% | |
| Victory Capital Management Inc | 0.06% | 2,536,329 | $107,413,533 | $112,460,828 | +$5,047,295 | +4.70% | |
| Lionstone Capital Management Llc | 24.11% | 2,476,270 | $104,870,035 | $109,797,812 | +$4,927,777 | +4.70% | |
| Allspring Global Investments Holdings, Llc | 0.16% | 2,498,914 | $104,404,606 | $110,801,847 | +$6,397,241 | +6.13% | |
| Vanguard Fiduciary Trust Co | 0.02% | 2,444,888 | $103,541,007 | $108,406,334 | +$4,865,327 | +4.70% | |
| Bank Of America Corp | 0.01% | 2,212,323 | $93,691,862 | $98,094,402 | +$4,402,540 | +4.70% | |
| Bank Of New York Mellon Corp | 0.02% | 2,196,689 | $93,029,767 | $97,401,190 | +$4,371,423 | +4.70% | |
| Snyder Capital Management L P | 1.56% | 2,127,574 | $90,102,759 | $94,336,631 | +$4,233,872 | +4.70% | |
| Capital World Investors | 0.01% | 2,102,708 | $89,049,684 | $93,234,073 | +$4,184,389 | +4.70% | |
| Marshall Wace, Llp | 0.07% | 1,941,548 | $82,224,558 | $86,088,238 | +$3,863,680 | +4.70% | |
| Cooke & Bieler Lp | 1.23% | 2,030,753 | $78,387,066 | $90,043,588 | +$11,656,522 | +14.87% | |
| William Blair Investment Management, Llc | 0.21% | 1,649,980 | $69,876,653 | $73,160,113 | +$3,283,460 | +4.70% | |
| Neuberger Berman Group Llc | 0.05% | 1,762,575 | $67,436,119 | $78,152,576 | +$10,716,457 | +15.89% | |
| Fisher Asset Management, Llc | 0.02% | 1,549,230 | $65,609,915 | $68,692,858 | +$3,082,943 | +4.70% | |
| Schwartz Investment Counsel Inc | 2.23% | 1,657,719 | $63,987,953 | $73,503,260 | +$9,515,307 | +14.87% | |
| Alliancebernstein L.P. | 0.02% | 1,550,268 | $62,816,859 | $68,738,883 | +$5,922,024 | +9.43% | |
| ADW Capital Management | Adam Wyden | 22.91% | 1,482,110 | $62,767,359 | $65,716,757 | +$2,949,398 | +4.70% |
| Jpmorgan Chase & Co | 0.00% | 1,473,900 | $61,167,404 | $65,352,726 | +$4,185,322 | +6.84% | |
| Gates Capital Management, Inc. | 1.98% | 1,424,946 | $60,346,463 | $63,182,106 | +$2,835,643 | +4.70% | |
| Man Group Plc | 0.09% | 1,208,922 | $51,197,847 | $53,603,601 | +$2,405,754 | +4.70% |
Frequently asked questions about APG
Who are the largest institutional holders of APG?
The largest institutional holders of APG reported in the latest SEC Form 13F filings include Blackrock, Inc., Janus Henderson Group Plc, Vanguard Capital Management Llc, Fmr Llc, and Vanguard Portfolio Management Llc. InsiderSet ranks institutional holders by their latest reported APG position.
What is APG institutional ownership?
This page tracks APG positions reported by institutional investment managers through SEC Form 13F. API GROUP CORP (APG) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own APG?
InsiderSet currently tracks 568 institutional managers reporting APG holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of APG shareholders.
How much APG stock do institutions own?
Institutional investment managers disclosed approximately $15.15B in APG holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was APG institutional ownership last updated?
The latest APG institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional APG holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its APG position after the reporting date.
Are institutions buying or selling APG?
Institutional buying and selling can be analyzed by comparing APG positions across consecutive 13F reporting periods. InsiderSet's APG Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View APG ownership changes.
How has APG institutional ownership changed over time?
InsiderSet tracks APG institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.